examples: removed extra titles or legends from QTGUI blocks in examples.

They just take up space and provide no info. Where used to differentiate graphs or lines, they are kept in.
author: Tom Rondeau <tom@trondeau.com> 2015-08-05 16:31:46 -0400
committer: Tom Rondeau <tom@trondeau.com> 2015-08-05 16:31:46 -0400
commit: fee49faacaa8b5e1492ee5b001b7e732ff8cf259 (patch)
tree: d2a6588ac472c242a67b35bb3967b4b4aad57a1e /gr-uhd/examples/grc
parent: f4b5bcabdde9ec67f1cd689a7abc204a00d6fbf9 (diff)
6 files changed, 5947 insertions, 4398 deletions
diff --git a/gr-uhd/examples/grc/uhd_dpsk_mod.grc b/gr-uhd/examples/grc/uhd_dpsk_mod.grc
index be6ec55b01..c047404f64 100644
--- a/gr-uhd/examples/grc/uhd_dpsk_mod.grc
+++ b/gr-uhd/examples/grc/uhd_dpsk_mod.grc
@@ -1,39 +1,60 @@
-<?xml version='1.0' encoding='ASCII'?>
+<?xml version='1.0' encoding='utf-8'?>
+<?grc format='1' created='3.7.8rc1'?>
 <flow_graph>
   <timestamp>Sat Jul 12 15:58:18 2014</timestamp>
   <block>
     <key>options</key>
     <param>
-      <key>id</key>
-      <value>uhd_dpsk_mod</value>
+      <key>author</key>
+      <value>Example</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>title</key>
-      <value>UHD DPSK Modulation</value>
+      <key>window_size</key>
+      <value>1280, 1024</value>
     </param>
     <param>
-      <key>author</key>
-      <value>Example</value>
+      <key>category</key>
+      <value>Custom</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>description</key>
       <value>Generate a DPSK signal</value>
     </param>
     <param>
-      <key>window_size</key>
-      <value>1280, 1024</value>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(-5, -2)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
       <key>generate_options</key>
       <value>qt_gui</value>
     </param>
     <param>
-      <key>category</key>
-      <value>Custom</value>
+      <key>id</key>
+      <value>uhd_dpsk_mod</value>
+    </param>
+    <param>
+      <key>max_nouts</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>realtime_scheduling</key>
+      <value></value>
     </param>
     <param>
       <key>run_options</key>
@@ -44,72 +65,115 @@
       <value>True</value>
     </param>
     <param>
-      <key>max_nouts</key>
-      <value>0</value>
+      <key>thread_safe_setters</key>
+      <value></value>
     </param>
     <param>
-      <key>realtime_scheduling</key>
-      <value></value>
+      <key>title</key>
+      <value>UHD DPSK Modulation</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>value</key>
+      <value>0.1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(-5, -2)</value>
+      <value>(916, 115)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value></value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>samps_per_sym</value>
+      <value>ampl</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Amplitude</value>
     </param>
     <param>
-      <key>value</key>
-      <value>8</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(743, 124)</value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>step</key>
+      <value>0.01</value>
+    </param>
+    <param>
+      <key>stop</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>rangeType</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
     <key>variable</key>
     <param>
-      <key>id</key>
-      <value>rolloff</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
+      <key>_coordinate</key>
+      <value>(653, 548)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>nfilts</value>
+    </param>
+    <param>
       <key>value</key>
-      <value>.35</value>
+      <value>32</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
       <value>(566, 548)</value>
     </param>
@@ -117,1762 +181,2352 @@
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
-      <value>nfilts</value>
+      <value>rolloff</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>value</key>
+      <value>.35</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
+    <param>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>value</key>
-      <value>32</value>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(653, 548)</value>
+      <value>(130, 547)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value></value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>parameter</key>
     <param>
       <key>id</key>
-      <value>tx_gain</value>
+      <value>rx_freq_off</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Rx Freq Offset (Hz)</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Default TX Gain</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>start</key>
+      <value>-50e3</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value></value>
+      <key>step</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>stop</key>
+      <value>50e3</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(968, 0)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>parameter</key>
+    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>freq</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Default Frequency</value>
+      <key>_coordinate</key>
+      <value>(743, 124)</value>
     </param>
     <param>
-      <key>value</key>
-      <value>2.45e9</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>id</key>
+      <value>samps_per_sym</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>f</value>
+      <key>value</key>
+      <value>8</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>value</key>
+      <value>1.982e9</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(634, 0)</value>
+      <value>(5, 545)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value></value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>parameter</key>
     <param>
       <key>id</key>
-      <value>samp_rate</value>
+      <value>tun_freq</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>UHD Freq (Hz)</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Sample Rate</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>value</key>
-      <value>1e6</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>start</key>
+      <value>1.9e9</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>s</value>
+      <key>step</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>stop</key>
+      <value>2.5e9</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(508, 0)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>parameter</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>address0</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>IP Address, Dev 0</value>
+      <key>_coordinate</key>
+      <value>(391, 546)</value>
     </param>
     <param>
-      <key>value</key>
-      <value>addr=192.168.10.2</value>
+      <key>gui_hint</key>
+      <value></value>
     </param>
     <param>
-      <key>type</key>
-      <value>string</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value></value>
+      <key>id</key>
+      <value>tun_rx_gain</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label</key>
+      <value>UHD Rx Gain</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(162, 0)</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
+    </param>
+    <param>
+      <key>start</key>
       <value>0</value>
     </param>
+    <param>
+      <key>step</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>stop</key>
+      <value>30</value>
+    </param>
+    <param>
+      <key>rangeType</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>widget</key>
+      <value>counter_slider</value>
+    </param>
   </block>
   <block>
-    <key>parameter</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>freq_offset</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Rx Frequency Offset</value>
+      <key>_coordinate</key>
+      <value>(277, 546)</value>
     </param>
     <param>
-      <key>value</key>
+      <key>gui_hint</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>id</key>
+      <value>tun_tx_gain</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>o</value>
+      <key>label</key>
+      <value>UHD Tx Gain</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(789, 0)</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>start</key>
       <value>0</value>
     </param>
+    <param>
+      <key>step</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>stop</key>
+      <value>30</value>
+    </param>
+    <param>
+      <key>rangeType</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>widget</key>
+      <value>counter_slider</value>
+    </param>
   </block>
   <block>
     <key>parameter</key>
     <param>
-      <key>id</key>
-      <value>rx_gain</value>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Default RX Gain</value>
+      <key>_coordinate</key>
+      <value>(162, 0)</value>
     </param>
     <param>
-      <key>value</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>id</key>
+      <value>address0</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>IP Address, Dev 0</value>
     </param>
     <param>
       <key>short_id</key>
       <value></value>
     </param>
     <param>
+      <key>type</key>
+      <value>string</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>addr=192.168.10.2</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1102, 0)</value>
+      <value>(322, 0)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>import</key>
     <param>
       <key>id</key>
-      <value>import_0</value>
+      <value>address1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>IP Address, Dev 1</value>
     </param>
     <param>
-      <key>import</key>
-      <value>from gnuradio import digital</value>
+      <key>short_id</key>
+      <value></value>
     </param>
     <param>
+      <key>type</key>
+      <value>string</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>addr=192.168.10.2</value>
+    </param>
+  </block>
+  <block>
+    <key>blocks_multiply_const_vxx</key>
+    <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>const</key>
+      <value>ampl</value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(169, 93)</value>
+      <value>(396, 161)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_multiply_const_vxx</key>
     <param>
       <key>id</key>
       <value>blocks_multiply_const_vxx_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
       <key>type</key>
       <value>complex</value>
     </param>
     <param>
-      <key>const</key>
-      <value>ampl</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>vlen</key>
       <value>1</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_uchar_to_float</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(396, 161)</value>
+      <value>(747, 431)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
+    <param>
+      <key>id</key>
+      <value>blocks_uchar_to_float_0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
   </block>
   <block>
-    <key>variable_qtgui_range</key>
+    <key>blocks_unpacked_to_packed_xx</key>
     <param>
-      <key>id</key>
-      <value>ampl</value>
+      <key>bits_per_chunk</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Amplitude</value>
+      <key>endianness</key>
+      <value>gr.GR_LSB_FIRST</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0.1</value>
+      <key>_coordinate</key>
+      <value>(542, 420)</value>
     </param>
     <param>
-      <key>start</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>1</value>
+      <key>id</key>
+      <value>blocks_unpacked_to_packed_xx_0</value>
     </param>
     <param>
-      <key>step</key>
-      <value>0.01</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>num_ports</key>
+      <value>1</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>type</key>
+      <value>byte</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_vector_source_x</key>
     <param>
-      <key>gui_hint</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(916, 115)</value>
+      <value>(6, 142)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>parameter</key>
     <param>
       <key>id</key>
-      <value>address1</value>
+      <value>blocks_vector_source_x_0</value>
     </param>
     <param>
-      <key>_enabled</key>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>byte</value>
+    </param>
+    <param>
+      <key>repeat</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>IP Address, Dev 1</value>
+      <key>tags</key>
+      <value>[]</value>
     </param>
     <param>
-      <key>value</key>
-      <value>addr=192.168.10.2</value>
+      <key>vlen</key>
+      <value>1</value>
     </param>
     <param>
-      <key>type</key>
-      <value>string</value>
+      <key>vector</key>
+      <value>range(256)</value>
     </param>
+  </block>
+  <block>
+    <key>digital_dxpsk_demod</key>
     <param>
-      <key>short_id</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>excess_bw</key>
+      <value>0.35</value>
+    </param>
+    <param>
+      <key>freq_bw</key>
+      <value>6.28/100.0</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(322, 0)</value>
+      <value>(294, 375)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>uhd_usrp_sink</key>
+    <param>
+      <key>mod_code</key>
+      <value>"gray"</value>
+    </param>
     <param>
       <key>id</key>
-      <value>uhd_usrp_sink_0</value>
+      <value>digital_dxpsk_demod_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>log</key>
+      <value>False</value>
     </param>
     <param>
-      <key>type</key>
-      <value>fc32</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>otw</key>
-      <value></value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>stream_args</key>
-      <value></value>
+      <key>phase_bw</key>
+      <value>6.28/100.0</value>
     </param>
     <param>
-      <key>stream_chans</key>
-      <value>[]</value>
+      <key>samples_per_symbol</key>
+      <value>samps_per_sym</value>
     </param>
     <param>
-      <key>dev_addr</key>
-      <value>address0</value>
+      <key>sync_out</key>
+      <value>True</value>
     </param>
     <param>
-      <key>dev_args</key>
-      <value>""</value>
+      <key>timing_bw</key>
+      <value>6.28/100.0</value>
     </param>
     <param>
-      <key>sync</key>
-      <value></value>
+      <key>type</key>
+      <value>dqpsk</value>
     </param>
     <param>
-      <key>clock_rate</key>
-      <value>0.0</value>
+      <key>verbose</key>
+      <value>False</value>
     </param>
+  </block>
+  <block>
+    <key>digital_dxpsk_mod</key>
     <param>
-      <key>num_mboards</key>
-      <value>1</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>clock_source0</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>time_source0</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>sd_spec0</key>
-      <value>B:0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>clock_source1</key>
-      <value></value>
+      <key>excess_bw</key>
+      <value>0.35</value>
     </param>
     <param>
-      <key>time_source1</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(204, 138)</value>
     </param>
     <param>
-      <key>sd_spec1</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>clock_source2</key>
-      <value></value>
+      <key>mod_code</key>
+      <value>"gray"</value>
     </param>
     <param>
-      <key>time_source2</key>
-      <value></value>
+      <key>id</key>
+      <value>digital_dxpsk_mod_0</value>
     </param>
     <param>
-      <key>sd_spec2</key>
-      <value></value>
+      <key>log</key>
+      <value>False</value>
     </param>
     <param>
-      <key>clock_source3</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>time_source3</key>
-      <value></value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sd_spec3</key>
-      <value></value>
+      <key>samples_per_symbol</key>
+      <value>samps_per_sym</value>
     </param>
     <param>
-      <key>clock_source4</key>
-      <value></value>
+      <key>type</key>
+      <value>dqpsk</value>
     </param>
     <param>
-      <key>time_source4</key>
-      <value></value>
+      <key>verbose</key>
+      <value>False</value>
     </param>
+  </block>
+  <block>
+    <key>parameter</key>
     <param>
-      <key>sd_spec4</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>clock_source5</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>time_source5</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>sd_spec5</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(634, 0)</value>
     </param>
     <param>
-      <key>clock_source6</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>time_source6</key>
-      <value></value>
+      <key>id</key>
+      <value>freq</value>
     </param>
     <param>
-      <key>sd_spec6</key>
-      <value></value>
+      <key>label</key>
+      <value>Default Frequency</value>
     </param>
     <param>
-      <key>clock_source7</key>
-      <value></value>
+      <key>short_id</key>
+      <value>f</value>
     </param>
     <param>
-      <key>time_source7</key>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>2.45e9</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>sd_spec7</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>nchan</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>_coordinate</key>
+      <value>(789, 0)</value>
     </param>
     <param>
-      <key>center_freq0</key>
-      <value>tun_freq</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gain0</key>
-      <value>tun_rx_gain</value>
+      <key>id</key>
+      <value>freq_offset</value>
     </param>
     <param>
-      <key>ant0</key>
-      <value></value>
+      <key>label</key>
+      <value>Rx Frequency Offset</value>
     </param>
     <param>
-      <key>bw0</key>
-      <value>0</value>
+      <key>short_id</key>
+      <value>o</value>
     </param>
     <param>
-      <key>center_freq1</key>
-      <value>0</value>
+      <key>type</key>
+      <value>eng_float</value>
     </param>
     <param>
-      <key>gain1</key>
+      <key>value</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>import</key>
     <param>
-      <key>ant1</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>bw1</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq2</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>gain2</key>
+      <key>_coordinate</key>
+      <value>(169, 93)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant2</key>
-      <value></value>
+      <key>id</key>
+      <value>import_0</value>
     </param>
     <param>
-      <key>bw2</key>
-      <value>0</value>
+      <key>import</key>
+      <value>from gnuradio import digital</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_const_sink_x</key>
     <param>
-      <key>center_freq3</key>
-      <value>0</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gain3</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>ant3</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>bw3</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq4</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gain4</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(1, 367)</value>
     </param>
     <param>
-      <key>ant4</key>
+      <key>gui_hint</key>
       <value></value>
     </param>
     <param>
-      <key>bw4</key>
-      <value>0</value>
+      <key>_rotation</key>
+      <value>180</value>
     </param>
     <param>
-      <key>center_freq5</key>
-      <value>0</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gain5</key>
-      <value>0</value>
+      <key>id</key>
+      <value>qtgui_const_sink_x_0</value>
     </param>
     <param>
-      <key>ant5</key>
+      <key>legend</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>alpha1</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>bw5</key>
+      <key>marker1</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq6</key>
+      <key>style1</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain6</key>
-      <value>0</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ant6</key>
+      <key>alpha10</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color10</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>bw6</key>
+      <key>marker10</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq7</key>
+      <key>style10</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain7</key>
-      <value>0</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ant7</key>
+      <key>alpha2</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color2</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>bw7</key>
+      <key>marker2</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq8</key>
+      <key>style2</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain8</key>
-      <value>0</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ant8</key>
+      <key>alpha3</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color3</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>bw8</key>
+      <key>marker3</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq9</key>
+      <key>style3</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain9</key>
-      <value>0</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ant9</key>
+      <key>alpha4</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color4</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>bw9</key>
+      <key>marker4</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq10</key>
+      <key>style4</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain10</key>
-      <value>0</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ant10</key>
+      <key>alpha5</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color5</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>bw10</key>
+      <key>marker5</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq11</key>
+      <key>style5</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain11</key>
-      <value>0</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ant11</key>
+      <key>alpha6</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color6</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>bw11</key>
+      <key>marker6</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq12</key>
+      <key>style6</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain12</key>
-      <value>0</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ant12</key>
+      <key>alpha7</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color7</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label7</key>
       <value></value>
     </param>
     <param>
-      <key>bw12</key>
+      <key>marker7</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq13</key>
+      <key>style7</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain13</key>
-      <value>0</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ant13</key>
+      <key>alpha8</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color8</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>bw13</key>
+      <key>marker8</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq14</key>
+      <key>style8</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain14</key>
-      <value>0</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ant14</key>
+      <key>alpha9</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color9</key>
+      <value>"red"</value>
+    </param>
+    <param>
+      <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>bw14</key>
+      <key>marker9</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq15</key>
+      <key>style9</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain15</key>
-      <value>0</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ant15</key>
-      <value></value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>bw15</key>
-      <value>0</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq16</key>
-      <value>0</value>
+      <key>size</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>gain16</key>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant16</key>
-      <value></value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>bw16</key>
-      <value>0</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>center_freq17</key>
-      <value>0</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>gain17</key>
-      <value>0</value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>ant17</key>
-      <value></value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>bw17</key>
-      <value>0</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>center_freq18</key>
-      <value>0</value>
+      <key>xmax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>gain18</key>
-      <value>0</value>
+      <key>xmin</key>
+      <value>-2</value>
     </param>
     <param>
-      <key>ant18</key>
-      <value></value>
+      <key>ymax</key>
+      <value>2</value>
     </param>
     <param>
-      <key>bw18</key>
-      <value>0</value>
+      <key>ymin</key>
+      <value>-2</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>center_freq19</key>
-      <value>0</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gain19</key>
-      <value>0</value>
+      <key>average</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>ant19</key>
+      <key>bw</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>bw19</key>
-      <value>0</value>
+      <key>fc</key>
+      <value>tun_freq+rx_freq_off</value>
     </param>
     <param>
-      <key>center_freq20</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>gain20</key>
-      <value>0</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>ant20</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>bw20</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>center_freq21</key>
-      <value>0</value>
+      <key>fftsize</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>gain21</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(610, 254)</value>
     </param>
     <param>
-      <key>ant21</key>
+      <key>gui_hint</key>
       <value></value>
     </param>
     <param>
-      <key>bw21</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq22</key>
-      <value>0</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gain22</key>
-      <value>0</value>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0</value>
     </param>
     <param>
-      <key>ant22</key>
-      <value></value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>bw22</key>
-      <value>0</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>center_freq23</key>
-      <value>0</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>gain23</key>
-      <value>0</value>
+      <key>label1</key>
+      <value>Received Spectrum</value>
     </param>
     <param>
-      <key>ant23</key>
+      <key>width1</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha10</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color10</key>
+      <value>"dark blue"</value>
+    </param>
+    <param>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>bw23</key>
-      <value>0</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq24</key>
-      <value>0</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain24</key>
-      <value>0</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>ant24</key>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>bw24</key>
-      <value>0</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq25</key>
-      <value>0</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain25</key>
-      <value>0</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>ant25</key>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>bw25</key>
-      <value>0</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq26</key>
-      <value>0</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain26</key>
-      <value>0</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>ant26</key>
+      <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>bw26</key>
-      <value>0</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq27</key>
-      <value>0</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain27</key>
-      <value>0</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>ant27</key>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>bw27</key>
-      <value>0</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq28</key>
-      <value>0</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain28</key>
-      <value>0</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>ant28</key>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>bw28</key>
-      <value>0</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq29</key>
-      <value>0</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain29</key>
-      <value>0</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>ant29</key>
+      <key>label7</key>
       <value></value>
     </param>
     <param>
-      <key>bw29</key>
-      <value>0</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq30</key>
-      <value>0</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain30</key>
-      <value>0</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>ant30</key>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>bw30</key>
-      <value>0</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq31</key>
-      <value>0</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain31</key>
-      <value>0</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>ant31</key>
+      <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>bw31</key>
+      <key>width9</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>len_tag_name</key>
-      <value></value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>name</key>
+      <value>Received Spectrum</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(576, 131)</value>
+      <key>showports</key>
+      <value>True</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>freqhalf</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_const_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_const_sink_x_0</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>False</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
+    </param>
+    <param>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
       <key>type</key>
       <value>complex</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>size</key>
-      <value>1024</value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>False</value>
+      <key>ymax</key>
+      <value>10</value>
     </param>
     <param>
       <key>ymin</key>
-      <value>-2</value>
+      <value>-140</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_time_sink_x</key>
     <param>
-      <key>ymax</key>
-      <value>2</value>
+      <key>autoscale</key>
+      <value>True</value>
     </param>
     <param>
-      <key>xmin</key>
-      <value>-2</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>xmax</key>
-      <value>2</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value></value>
+      <key>entags</key>
+      <value>True</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>_coordinate</key>
+      <value>(294, 265)</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>gui_hint</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label1</key>
-      <value></value>
+      <key>id</key>
+      <value>qtgui_time_sink_x_0</value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>legend</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color1</key>
       <value>"blue"</value>
     </param>
     <param>
-      <key>style1</key>
-      <value>0</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
       <key>marker1</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha1</key>
+      <key>style1</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width1</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha10</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>label2</key>
+      <key>color10</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
+      <key>marker10</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style10</key>
       <value>1</value>
     </param>
     <param>
+      <key>width10</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha2</key>
+      <value>1.0</value>
+    </param>
+    <param>
       <key>color2</key>
       <value>"red"</value>
     </param>
     <param>
-      <key>style2</key>
-      <value>0</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
       <key>marker2</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>style2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color3</key>
-      <value>"red"</value>
+      <value>"green"</value>
     </param>
     <param>
-      <key>style3</key>
-      <value>0</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
       <key>marker3</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>style3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color4</key>
-      <value>"red"</value>
+      <value>"black"</value>
     </param>
     <param>
-      <key>style4</key>
-      <value>0</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
       <key>marker4</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>style4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color5</key>
-      <value>"red"</value>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>style5</key>
-      <value>0</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
       <key>marker5</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>style5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color6</key>
-      <value>"red"</value>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>style6</key>
-      <value>0</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
       <key>marker6</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>style6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label7</key>
-      <value></value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color7</key>
-      <value>"red"</value>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>style7</key>
-      <value>0</value>
+      <key>label7</key>
+      <value></value>
     </param>
     <param>
       <key>marker7</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>style7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
       <key>color8</key>
-      <value>"red"</value>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>style8</key>
-      <value>0</value>
+      <key>label8</key>
+      <value></value>
     </param>
     <param>
       <key>marker8</key>
-      <value>0</value>
+      <value>-1</value>
     </param>
     <param>
-      <key>alpha8</key>
+      <key>style8</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width8</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha9</key>
       <value>1.0</value>
     </param>
     <param>
+      <key>color9</key>
+      <value>"dark green"</value>
+    </param>
+    <param>
       <key>label9</key>
       <value></value>
     </param>
     <param>
+      <key>marker9</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style9</key>
+      <value>1</value>
+    </param>
+    <param>
       <key>width9</key>
       <value>1</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"red"</value>
+      <key>name</key>
+      <value>Rx Time Signal</value>
     </param>
     <param>
-      <key>style9</key>
+      <key>nconnections</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>size</key>
+      <value>1024</value>
+    </param>
+    <param>
+      <key>srate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>marker9</key>
+      <key>tr_delay</key>
       <value>0</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"red"</value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>style10</key>
-      <value>0</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>0</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>ylabel</key>
+      <value>Amplitude</value>
+    </param>
+    <param>
+      <key>yunit</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>ymax</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>ymin</key>
+      <value>-1</value>
+    </param>
+  </block>
+  <block>
+    <key>qtgui_time_sink_x</key>
+    <param>
+      <key>autoscale</key>
+      <value>True</value>
     </param>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>ctrlpanel</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>affinity</key>
       <value></value>
     </param>
     <param>
+      <key>entags</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1, 367)</value>
+      <value>(923, 405)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value></value>
     </param>
     <param>
       <key>_rotation</key>
-      <value>180</value>
+      <value>0</value>
+    </param>
+    <param>
+      <key>grid</key>
+      <value>False</value>
     </param>
-  </block>
-  <block>
-    <key>uhd_usrp_source</key>
     <param>
       <key>id</key>
-      <value>uhd_usrp_source_0</value>
+      <value>qtgui_time_sink_x_1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>type</key>
-      <value>fc32</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>otw</key>
-      <value></value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>stream_args</key>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>stream_chans</key>
-      <value>[]</value>
+      <key>marker1</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>dev_addr</key>
-      <value>address1</value>
+      <key>style1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>dev_args</key>
-      <value>""</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>sync</key>
+      <key>alpha10</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color10</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>clock_rate</key>
-      <value>0.0</value>
+      <key>marker10</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>num_mboards</key>
+      <key>style10</key>
       <value>1</value>
     </param>
     <param>
-      <key>clock_source0</key>
-      <value></value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>time_source0</key>
-      <value></value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>sd_spec0</key>
-      <value>A:0</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>clock_source1</key>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>time_source1</key>
-      <value></value>
+      <key>marker2</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>sd_spec1</key>
-      <value></value>
+      <key>style2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>clock_source2</key>
-      <value></value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>time_source2</key>
-      <value></value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>sd_spec2</key>
-      <value></value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>clock_source3</key>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>time_source3</key>
-      <value></value>
+      <key>marker3</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>sd_spec3</key>
-      <value></value>
+      <key>style3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>clock_source4</key>
-      <value></value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>time_source4</key>
-      <value></value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>sd_spec4</key>
-      <value></value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>clock_source5</key>
+      <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>time_source5</key>
-      <value></value>
+      <key>marker4</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>sd_spec5</key>
-      <value></value>
+      <key>style4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>clock_source6</key>
-      <value></value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>time_source6</key>
-      <value></value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>sd_spec6</key>
-      <value></value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>clock_source7</key>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>time_source7</key>
-      <value></value>
+      <key>marker5</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>sd_spec7</key>
+      <key>style5</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width5</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha6</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color6</key>
+      <value>"magenta"</value>
+    </param>
+    <param>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>nchan</key>
+      <key>marker6</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>style6</key>
       <value>1</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq0</key>
-      <value>tun_freq+rx_freq_off</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain0</key>
-      <value>tun_rx_gain</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>ant0</key>
+      <key>label7</key>
       <value></value>
     </param>
     <param>
-      <key>bw0</key>
-      <value>0</value>
+      <key>marker7</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>center_freq1</key>
-      <value>0</value>
+      <key>style7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>gain1</key>
-      <value>0</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ant1</key>
+      <key>alpha8</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color8</key>
+      <value>"dark red"</value>
+    </param>
+    <param>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>bw1</key>
-      <value>0</value>
+      <key>marker8</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>center_freq2</key>
-      <value>0</value>
+      <key>style8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>gain2</key>
-      <value>0</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>ant2</key>
+      <key>alpha9</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color9</key>
+      <value>"dark green"</value>
+    </param>
+    <param>
+      <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>bw2</key>
-      <value>0</value>
+      <key>marker9</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>center_freq3</key>
+      <key>style9</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>width9</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>name</key>
+      <value>Received Data</value>
+    </param>
+    <param>
+      <key>nconnections</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>size</key>
+      <value>1024</value>
+    </param>
+    <param>
+      <key>srate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain3</key>
+      <key>tr_delay</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant3</key>
+      <key>tr_level</key>
+      <value>0.0</value>
+    </param>
+    <param>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
+    </param>
+    <param>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
+    </param>
+    <param>
+      <key>tr_tag</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>update_time</key>
+      <value>0.10</value>
+    </param>
+    <param>
+      <key>ylabel</key>
+      <value>Amplitude</value>
+    </param>
+    <param>
+      <key>yunit</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>ymax</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>ymin</key>
+      <value>-1</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>bw3</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq4</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>gain4</key>
+      <key>_coordinate</key>
+      <value>(1102, 0)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant4</key>
+      <key>id</key>
+      <value>rx_gain</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Default RX Gain</value>
+    </param>
+    <param>
+      <key>short_id</key>
       <value></value>
     </param>
     <param>
-      <key>bw4</key>
-      <value>0</value>
+      <key>type</key>
+      <value>eng_float</value>
     </param>
     <param>
-      <key>center_freq5</key>
+      <key>value</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>parameter</key>
     <param>
-      <key>gain5</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>ant5</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>bw5</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>center_freq6</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(508, 0)</value>
     </param>
     <param>
-      <key>gain6</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant6</key>
+      <key>id</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Sample Rate</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>s</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>1e6</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>bw6</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq7</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>gain7</key>
+      <key>_coordinate</key>
+      <value>(968, 0)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant7</key>
+      <key>id</key>
+      <value>tx_gain</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Default TX Gain</value>
+    </param>
+    <param>
+      <key>short_id</key>
       <value></value>
     </param>
     <param>
-      <key>bw7</key>
-      <value>0</value>
+      <key>type</key>
+      <value>eng_float</value>
     </param>
     <param>
-      <key>center_freq8</key>
+      <key>value</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>uhd_usrp_sink</key>
     <param>
-      <key>gain8</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>ant8</key>
+      <key>ant0</key>
       <value></value>
     </param>
     <param>
-      <key>bw8</key>
+      <key>bw0</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq9</key>
-      <value>0</value>
+      <key>center_freq0</key>
+      <value>tun_freq</value>
     </param>
     <param>
-      <key>gain9</key>
-      <value>0</value>
+      <key>norm_gain0</key>
+      <value>False</value>
     </param>
     <param>
-      <key>ant9</key>
+      <key>gain0</key>
+      <value>tun_rx_gain</value>
+    </param>
+    <param>
+      <key>ant10</key>
       <value></value>
     </param>
     <param>
-      <key>bw9</key>
+      <key>bw10</key>
       <value>0</value>
     </param>
     <param>
@@ -1880,15 +2534,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain10</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain10</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant10</key>
+      <key>ant11</key>
       <value></value>
     </param>
     <param>
-      <key>bw10</key>
+      <key>bw11</key>
       <value>0</value>
     </param>
     <param>
@@ -1896,15 +2554,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain11</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain11</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant11</key>
+      <key>ant12</key>
       <value></value>
     </param>
     <param>
-      <key>bw11</key>
+      <key>bw12</key>
       <value>0</value>
     </param>
     <param>
@@ -1912,15 +2574,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain12</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain12</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant12</key>
+      <key>ant13</key>
       <value></value>
     </param>
     <param>
-      <key>bw12</key>
+      <key>bw13</key>
       <value>0</value>
     </param>
     <param>
@@ -1928,15 +2594,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain13</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain13</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant13</key>
+      <key>ant14</key>
       <value></value>
     </param>
     <param>
-      <key>bw13</key>
+      <key>bw14</key>
       <value>0</value>
     </param>
     <param>
@@ -1944,15 +2614,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain14</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain14</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant14</key>
+      <key>ant15</key>
       <value></value>
     </param>
     <param>
-      <key>bw14</key>
+      <key>bw15</key>
       <value>0</value>
     </param>
     <param>
@@ -1960,15 +2634,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain15</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain15</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant15</key>
+      <key>ant16</key>
       <value></value>
     </param>
     <param>
-      <key>bw15</key>
+      <key>bw16</key>
       <value>0</value>
     </param>
     <param>
@@ -1976,15 +2654,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain16</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain16</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant16</key>
+      <key>ant17</key>
       <value></value>
     </param>
     <param>
-      <key>bw16</key>
+      <key>bw17</key>
       <value>0</value>
     </param>
     <param>
@@ -1992,15 +2674,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain17</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain17</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant17</key>
+      <key>ant18</key>
       <value></value>
     </param>
     <param>
-      <key>bw17</key>
+      <key>bw18</key>
       <value>0</value>
     </param>
     <param>
@@ -2008,15 +2694,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain18</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain18</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant18</key>
+      <key>ant19</key>
       <value></value>
     </param>
     <param>
-      <key>bw18</key>
+      <key>bw19</key>
       <value>0</value>
     </param>
     <param>
@@ -2024,23 +2714,31 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain19</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain19</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant19</key>
+      <key>ant1</key>
       <value></value>
     </param>
     <param>
-      <key>bw19</key>
+      <key>bw1</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq20</key>
+      <key>center_freq1</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain20</key>
+      <key>norm_gain1</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain1</key>
       <value>0</value>
     </param>
     <param>
@@ -2052,11 +2750,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq21</key>
+      <key>center_freq20</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain21</key>
+      <key>norm_gain20</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain20</key>
       <value>0</value>
     </param>
     <param>
@@ -2068,11 +2770,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq22</key>
+      <key>center_freq21</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain22</key>
+      <key>norm_gain21</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain21</key>
       <value>0</value>
     </param>
     <param>
@@ -2084,11 +2790,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq23</key>
+      <key>center_freq22</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain23</key>
+      <key>norm_gain22</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain22</key>
       <value>0</value>
     </param>
     <param>
@@ -2100,11 +2810,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq24</key>
+      <key>center_freq23</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain24</key>
+      <key>norm_gain23</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain23</key>
       <value>0</value>
     </param>
     <param>
@@ -2116,11 +2830,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq25</key>
+      <key>center_freq24</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain25</key>
+      <key>norm_gain24</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain24</key>
       <value>0</value>
     </param>
     <param>
@@ -2132,11 +2850,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq26</key>
+      <key>center_freq25</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain26</key>
+      <key>norm_gain25</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain25</key>
       <value>0</value>
     </param>
     <param>
@@ -2148,11 +2870,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq27</key>
+      <key>center_freq26</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain27</key>
+      <key>norm_gain26</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain26</key>
       <value>0</value>
     </param>
     <param>
@@ -2164,11 +2890,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq28</key>
+      <key>center_freq27</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain28</key>
+      <key>norm_gain27</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain27</key>
       <value>0</value>
     </param>
     <param>
@@ -2180,11 +2910,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq29</key>
+      <key>center_freq28</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain29</key>
+      <key>norm_gain28</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain28</key>
       <value>0</value>
     </param>
     <param>
@@ -2196,1228 +2930,1038 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq30</key>
+      <key>center_freq29</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain30</key>
-      <value>0</value>
+      <key>norm_gain29</key>
+      <value>False</value>
     </param>
     <param>
-      <key>ant30</key>
-      <value></value>
+      <key>gain29</key>
+      <value>0</value>
     </param>
     <param>
-      <key>bw30</key>
-      <value>0</value>
+      <key>ant2</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq31</key>
+      <key>bw2</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain31</key>
+      <key>center_freq2</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant31</key>
-      <value></value>
+      <key>norm_gain2</key>
+      <value>False</value>
     </param>
     <param>
-      <key>bw31</key>
+      <key>gain2</key>
       <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
+      <key>ant30</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>bw30</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>center_freq30</key>
       <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(-1, 242)</value>
+      <key>norm_gain30</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>gain30</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_dxpsk_mod</key>
     <param>
-      <key>id</key>
-      <value>digital_dxpsk_mod_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>dqpsk</value>
-    </param>
-    <param>
-      <key>samples_per_symbol</key>
-      <value>samps_per_sym</value>
+      <key>ant31</key>
+      <value></value>
     </param>
     <param>
-      <key>excess_bw</key>
-      <value>0.35</value>
+      <key>bw31</key>
+      <value>0</value>
     </param>
     <param>
-      <key>mod_code</key>
-      <value>"gray"</value>
+      <key>center_freq31</key>
+      <value>0</value>
     </param>
     <param>
-      <key>verbose</key>
+      <key>norm_gain31</key>
       <value>False</value>
     </param>
     <param>
-      <key>log</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
+      <key>gain31</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>ant3</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>bw3</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>center_freq3</key>
       <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(204, 138)</value>
+      <key>norm_gain3</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>gain3</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_vector_source_x</key>
-    <param>
-      <key>id</key>
-      <value>blocks_vector_source_x_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
     <param>
-      <key>type</key>
-      <value>byte</value>
-    </param>
-    <param>
-      <key>vector</key>
-      <value>range(256)</value>
+      <key>ant4</key>
+      <value></value>
     </param>
     <param>
-      <key>tags</key>
-      <value>[]</value>
+      <key>bw4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>repeat</key>
-      <value>True</value>
+      <key>center_freq4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>vlen</key>
-      <value>1</value>
+      <key>norm_gain4</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>gain4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>ant5</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>bw5</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>center_freq5</key>
       <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(6, 142)</value>
+      <key>norm_gain5</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>gain5</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
-    <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_0</value>
-    </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>ant6</key>
+      <value></value>
     </param>
     <param>
-      <key>name</key>
-      <value>Rx Time Signal</value>
+      <key>bw6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>size</key>
-      <value>1024</value>
+      <key>center_freq6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>srate</key>
-      <value>samp_rate</value>
+      <key>norm_gain6</key>
+      <value>False</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>True</value>
+      <key>gain6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-1</value>
+      <key>ant7</key>
+      <value></value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>1</value>
+      <key>bw7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>center_freq7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>norm_gain7</key>
+      <value>False</value>
     </param>
     <param>
-      <key>entags</key>
-      <value>True</value>
+      <key>gain7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gui_hint</key>
+      <key>ant8</key>
       <value></value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
-    </param>
-    <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
-    </param>
-    <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>bw8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_delay</key>
+      <key>center_freq8</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_chan</key>
-      <value>0</value>
+      <key>norm_gain8</key>
+      <value>False</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
+      <key>gain8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label1</key>
+      <key>ant9</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>bw9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>center_freq9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style1</key>
-      <value>1</value>
+      <key>norm_gain9</key>
+      <value>False</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>-1</value>
+      <key>gain9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>clock_rate</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>label2</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color2</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>style2</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>marker2</key>
-      <value>-1</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>dev_addr</key>
+      <value>address0</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>dev_args</key>
+      <value>""</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>_coordinate</key>
+      <value>(576, 131)</value>
     </param>
     <param>
-      <key>style3</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>-1</value>
+      <key>id</key>
+      <value>uhd_usrp_sink_0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>type</key>
+      <value>fc32</value>
     </param>
     <param>
-      <key>label4</key>
+      <key>len_tag_name</key>
       <value></value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>clock_source0</key>
+      <value></value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>sd_spec0</key>
+      <value>B:0</value>
     </param>
     <param>
-      <key>style4</key>
-      <value>1</value>
+      <key>time_source0</key>
+      <value></value>
     </param>
     <param>
-      <key>marker4</key>
-      <value>-1</value>
+      <key>clock_source1</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>sd_spec1</key>
+      <value></value>
     </param>
     <param>
-      <key>label5</key>
+      <key>time_source1</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>clock_source2</key>
+      <value></value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>sd_spec2</key>
+      <value></value>
     </param>
     <param>
-      <key>style5</key>
-      <value>1</value>
+      <key>time_source2</key>
+      <value></value>
     </param>
     <param>
-      <key>marker5</key>
-      <value>-1</value>
+      <key>clock_source3</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>sd_spec3</key>
+      <value></value>
     </param>
     <param>
-      <key>label6</key>
+      <key>time_source3</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>clock_source4</key>
+      <value></value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>sd_spec4</key>
+      <value></value>
     </param>
     <param>
-      <key>style6</key>
-      <value>1</value>
+      <key>time_source4</key>
+      <value></value>
     </param>
     <param>
-      <key>marker6</key>
-      <value>-1</value>
+      <key>clock_source5</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>sd_spec5</key>
+      <value></value>
     </param>
     <param>
-      <key>label7</key>
+      <key>time_source5</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>clock_source6</key>
+      <value></value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>sd_spec6</key>
+      <value></value>
     </param>
     <param>
-      <key>style7</key>
-      <value>1</value>
+      <key>time_source6</key>
+      <value></value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>-1</value>
+      <key>clock_source7</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>sd_spec7</key>
+      <value></value>
     </param>
     <param>
-      <key>label8</key>
+      <key>time_source7</key>
       <value></value>
     </param>
     <param>
-      <key>width8</key>
+      <key>nchan</key>
       <value>1</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
-    </param>
-    <param>
-      <key>style8</key>
+      <key>num_mboards</key>
       <value>1</value>
     </param>
     <param>
-      <key>marker8</key>
-      <value>-1</value>
-    </param>
-    <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>label9</key>
+      <key>stream_args</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color9</key>
-      <value>"dark green"</value>
-    </param>
-    <param>
-      <key>style9</key>
-      <value>1</value>
+      <key>stream_chans</key>
+      <value>[]</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>-1</value>
+      <key>sync</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>otw</key>
+      <value></value>
     </param>
+  </block>
+  <block>
+    <key>uhd_usrp_source</key>
     <param>
-      <key>label10</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>ant0</key>
+      <value></value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>bw0</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style10</key>
-      <value>1</value>
+      <key>center_freq0</key>
+      <value>tun_freq+rx_freq_off</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
+      <key>norm_gain0</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>gain0</key>
+      <value>tun_rx_gain</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>ant10</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>bw10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(294, 265)</value>
+      <key>center_freq10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>norm_gain10</key>
+      <value>False</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>tun_freq</value>
+      <key>gain10</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>ant11</key>
+      <value></value>
     </param>
     <param>
-      <key>label</key>
-      <value>UHD Freq (Hz)</value>
+      <key>bw11</key>
+      <value>0</value>
     </param>
     <param>
-      <key>value</key>
-      <value>1.982e9</value>
+      <key>center_freq11</key>
+      <value>0</value>
     </param>
     <param>
-      <key>start</key>
-      <value>1.9e9</value>
+      <key>norm_gain11</key>
+      <value>False</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>2.5e9</value>
+      <key>gain11</key>
+      <value>0</value>
     </param>
     <param>
-      <key>step</key>
-      <value>1</value>
+      <key>ant12</key>
+      <value></value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>bw12</key>
+      <value>0</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>center_freq12</key>
+      <value>0</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>norm_gain12</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value></value>
+      <key>gain12</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>ant13</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(5, 545)</value>
+      <key>bw13</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>center_freq13</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>tun_rx_gain</value>
+      <key>norm_gain13</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>gain13</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label</key>
-      <value>UHD Rx Gain</value>
+      <key>ant14</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
+      <key>bw14</key>
       <value>0</value>
     </param>
     <param>
-      <key>start</key>
+      <key>center_freq14</key>
       <value>0</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>30</value>
-    </param>
-    <param>
-      <key>step</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>widget</key>
-      <value>counter_slider</value>
-    </param>
-    <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
-    </param>
-    <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>norm_gain14</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value></value>
+      <key>gain14</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>ant15</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(391, 546)</value>
+      <key>bw15</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>center_freq15</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>tun_tx_gain</value>
+      <key>norm_gain15</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>gain15</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label</key>
-      <value>UHD Tx Gain</value>
+      <key>ant16</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
+      <key>bw16</key>
       <value>0</value>
     </param>
     <param>
-      <key>start</key>
+      <key>center_freq16</key>
       <value>0</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>30</value>
-    </param>
-    <param>
-      <key>step</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>widget</key>
-      <value>counter_slider</value>
-    </param>
-    <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>norm_gain16</key>
+      <value>False</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>gain16</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gui_hint</key>
+      <key>ant17</key>
       <value></value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>bw17</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(277, 546)</value>
+      <key>center_freq17</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>norm_gain17</key>
+      <value>False</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>rx_freq_off</value>
+      <key>gain17</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>ant18</key>
+      <value></value>
     </param>
     <param>
-      <key>label</key>
-      <value>Rx Freq Offset (Hz)</value>
+      <key>bw18</key>
+      <value>0</value>
     </param>
     <param>
-      <key>value</key>
+      <key>center_freq18</key>
       <value>0</value>
     </param>
     <param>
-      <key>start</key>
-      <value>-50e3</value>
+      <key>norm_gain18</key>
+      <value>False</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>50e3</value>
+      <key>gain18</key>
+      <value>0</value>
     </param>
     <param>
-      <key>step</key>
-      <value>1</value>
+      <key>ant19</key>
+      <value></value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>bw19</key>
+      <value>0</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>center_freq19</key>
+      <value>0</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>norm_gain19</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value></value>
+      <key>gain19</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>ant1</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(130, 547)</value>
+      <key>bw1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>center_freq1</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_dxpsk_demod</key>
     <param>
-      <key>id</key>
-      <value>digital_dxpsk_demod_0</value>
+      <key>norm_gain1</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>gain1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>dqpsk</value>
+      <key>ant20</key>
+      <value></value>
     </param>
     <param>
-      <key>samples_per_symbol</key>
-      <value>samps_per_sym</value>
+      <key>bw20</key>
+      <value>0</value>
     </param>
     <param>
-      <key>excess_bw</key>
-      <value>0.35</value>
+      <key>center_freq20</key>
+      <value>0</value>
     </param>
     <param>
-      <key>freq_bw</key>
-      <value>6.28/100.0</value>
+      <key>norm_gain20</key>
+      <value>False</value>
     </param>
     <param>
-      <key>phase_bw</key>
-      <value>6.28/100.0</value>
+      <key>gain20</key>
+      <value>0</value>
     </param>
     <param>
-      <key>timing_bw</key>
-      <value>6.28/100.0</value>
+      <key>ant21</key>
+      <value></value>
     </param>
     <param>
-      <key>mod_code</key>
-      <value>"gray"</value>
+      <key>bw21</key>
+      <value>0</value>
     </param>
     <param>
-      <key>verbose</key>
-      <value>False</value>
+      <key>center_freq21</key>
+      <value>0</value>
     </param>
     <param>
-      <key>log</key>
+      <key>norm_gain21</key>
       <value>False</value>
     </param>
     <param>
-      <key>sync_out</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
+      <key>gain21</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>ant22</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>bw22</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>center_freq22</key>
       <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(294, 375)</value>
+      <key>norm_gain22</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>gain22</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_unpacked_to_packed_xx</key>
-    <param>
-      <key>id</key>
-      <value>blocks_unpacked_to_packed_xx_0</value>
-    </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>byte</value>
+      <key>ant23</key>
+      <value></value>
     </param>
     <param>
-      <key>bits_per_chunk</key>
-      <value>1</value>
+      <key>bw23</key>
+      <value>0</value>
     </param>
     <param>
-      <key>endianness</key>
-      <value>gr.GR_LSB_FIRST</value>
+      <key>center_freq23</key>
+      <value>0</value>
     </param>
     <param>
-      <key>num_ports</key>
-      <value>1</value>
+      <key>norm_gain23</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>gain23</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>ant24</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>bw24</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>center_freq24</key>
       <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(542, 420)</value>
+      <key>norm_gain24</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>gain24</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_uchar_to_float</key>
     <param>
-      <key>id</key>
-      <value>blocks_uchar_to_float_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
+      <key>ant25</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>bw25</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>center_freq25</key>
       <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(747, 431)</value>
+      <key>norm_gain25</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>gain25</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_time_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_time_sink_x_1</value>
+      <key>ant26</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>bw26</key>
+      <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>float</value>
+      <key>center_freq26</key>
+      <value>0</value>
     </param>
     <param>
-      <key>name</key>
-      <value>Received Data</value>
+      <key>norm_gain26</key>
+      <value>False</value>
     </param>
     <param>
-      <key>size</key>
-      <value>1024</value>
+      <key>gain26</key>
+      <value>0</value>
     </param>
     <param>
-      <key>srate</key>
-      <value>samp_rate</value>
+      <key>ant27</key>
+      <value></value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>True</value>
+      <key>bw27</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-1</value>
+      <key>center_freq27</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>1</value>
+      <key>norm_gain27</key>
+      <value>False</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>gain27</key>
+      <value>0</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>ant28</key>
+      <value></value>
     </param>
     <param>
-      <key>entags</key>
-      <value>True</value>
+      <key>bw28</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value></value>
+      <key>center_freq28</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_mode</key>
-      <value>qtgui.TRIG_MODE_FREE</value>
+      <key>norm_gain28</key>
+      <value>False</value>
     </param>
     <param>
-      <key>tr_slope</key>
-      <value>qtgui.TRIG_SLOPE_POS</value>
+      <key>gain28</key>
+      <value>0</value>
     </param>
     <param>
-      <key>tr_level</key>
-      <value>0.0</value>
+      <key>ant29</key>
+      <value></value>
     </param>
     <param>
-      <key>tr_delay</key>
+      <key>bw29</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_chan</key>
+      <key>center_freq29</key>
       <value>0</value>
     </param>
     <param>
-      <key>tr_tag</key>
-      <value>""</value>
+      <key>norm_gain29</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label1</key>
-      <value></value>
+      <key>gain29</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>ant2</key>
+      <value></value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>bw2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style1</key>
-      <value>1</value>
+      <key>center_freq2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>marker1</key>
-      <value>-1</value>
+      <key>norm_gain2</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>gain2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label2</key>
+      <key>ant30</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>bw30</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style2</key>
-      <value>1</value>
+      <key>center_freq30</key>
+      <value>0</value>
     </param>
     <param>
-      <key>marker2</key>
-      <value>-1</value>
+      <key>norm_gain30</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>gain30</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label3</key>
+      <key>ant31</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>bw31</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style3</key>
-      <value>1</value>
+      <key>center_freq31</key>
+      <value>0</value>
     </param>
     <param>
-      <key>marker3</key>
-      <value>-1</value>
+      <key>norm_gain31</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>gain31</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label4</key>
+      <key>ant3</key>
       <value></value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>bw3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style4</key>
-      <value>1</value>
+      <key>center_freq3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>marker4</key>
-      <value>-1</value>
+      <key>norm_gain3</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>gain3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label5</key>
+      <key>ant4</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>bw4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style5</key>
-      <value>1</value>
+      <key>center_freq4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>marker5</key>
-      <value>-1</value>
+      <key>norm_gain4</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>gain4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label6</key>
+      <key>ant5</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>bw5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style6</key>
-      <value>1</value>
+      <key>center_freq5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>marker6</key>
-      <value>-1</value>
+      <key>norm_gain5</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>gain5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label7</key>
+      <key>ant6</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>bw6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style7</key>
-      <value>1</value>
+      <key>center_freq6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>marker7</key>
-      <value>-1</value>
+      <key>norm_gain6</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>gain6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label8</key>
+      <key>ant7</key>
       <value></value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>bw7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style8</key>
-      <value>1</value>
+      <key>center_freq7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>marker8</key>
-      <value>-1</value>
+      <key>norm_gain7</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>gain7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label9</key>
+      <key>ant8</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>bw8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style9</key>
-      <value>1</value>
+      <key>center_freq8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>marker9</key>
-      <value>-1</value>
+      <key>norm_gain8</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>gain8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label10</key>
+      <key>ant9</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>bw9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"blue"</value>
+      <key>center_freq9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style10</key>
-      <value>1</value>
+      <key>norm_gain9</key>
+      <value>False</value>
     </param>
     <param>
-      <key>marker10</key>
-      <value>-1</value>
+      <key>gain9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>clock_rate</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
@@ -3425,310 +3969,223 @@
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(923, 405)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>dev_addr</key>
+      <value>address1</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_freq_sink_x_0</value>
+      <key>dev_args</key>
+      <value>""</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
-    </param>
-    <param>
-      <key>name</key>
-      <value>Received Spectrum</value>
-    </param>
-    <param>
-      <key>fftsize</key>
-      <value>1024</value>
-    </param>
-    <param>
-      <key>wintype</key>
-      <value>firdes.WIN_BLACKMAN_hARRIS</value>
-    </param>
-    <param>
-      <key>fc</key>
-      <value>tun_freq+rx_freq_off</value>
-    </param>
-    <param>
-      <key>bw</key>
-      <value>samp_rate</value>
-    </param>
-    <param>
-      <key>autoscale</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>average</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>ymin</key>
-      <value>-140</value>
+      <key>_coordinate</key>
+      <value>(-1, 242)</value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>10</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>id</key>
+      <value>uhd_usrp_source_0</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gui_hint</key>
+      <key>clock_source0</key>
       <value></value>
     </param>
     <param>
-      <key>label1</key>
-      <value>Received Spectrum</value>
-    </param>
-    <param>
-      <key>width1</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color1</key>
-      <value>"blue"</value>
-    </param>
-    <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>sd_spec0</key>
+      <value>A:0</value>
     </param>
     <param>
-      <key>label2</key>
+      <key>time_source0</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color2</key>
-      <value>"red"</value>
-    </param>
-    <param>
-      <key>alpha2</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label3</key>
+      <key>clock_source1</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color3</key>
-      <value>"green"</value>
-    </param>
-    <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>sd_spec1</key>
+      <value></value>
     </param>
     <param>
-      <key>label4</key>
+      <key>time_source1</key>
       <value></value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>clock_source2</key>
+      <value></value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>sd_spec2</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>time_source2</key>
+      <value></value>
     </param>
     <param>
-      <key>label5</key>
+      <key>clock_source3</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>sd_spec3</key>
+      <value></value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>time_source3</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>clock_source4</key>
+      <value></value>
     </param>
     <param>
-      <key>label6</key>
+      <key>sd_spec4</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>time_source4</key>
+      <value></value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>clock_source5</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>sd_spec5</key>
+      <value></value>
     </param>
     <param>
-      <key>label7</key>
+      <key>time_source5</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>clock_source6</key>
+      <value></value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>sd_spec6</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>time_source6</key>
+      <value></value>
     </param>
     <param>
-      <key>label8</key>
+      <key>clock_source7</key>
       <value></value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>sd_spec7</key>
+      <value></value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>time_source7</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label9</key>
-      <value></value>
+      <key>nchan</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width9</key>
+      <key>num_mboards</key>
       <value>1</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>type</key>
+      <value>fc32</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>label10</key>
+      <key>stream_args</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color10</key>
-      <value>"dark blue"</value>
-    </param>
-    <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>stream_chans</key>
+      <value>[]</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>sync</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>otw</key>
       <value></value>
     </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(610, 254)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
   </block>
   <connection>
-    <source_block_id>uhd_usrp_source_0</source_block_id>
-    <sink_block_id>qtgui_const_sink_x_0</sink_block_id>
+    <source_block_id>blocks_multiply_const_vxx_0</source_block_id>
+    <sink_block_id>uhd_usrp_sink_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>uhd_usrp_source_0</source_block_id>
-    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
+    <source_block_id>blocks_uchar_to_float_0</source_block_id>
+    <sink_block_id>qtgui_time_sink_x_1</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_dxpsk_mod_0</source_block_id>
-    <sink_block_id>blocks_multiply_const_vxx_0</sink_block_id>
+    <source_block_id>blocks_unpacked_to_packed_xx_0</source_block_id>
+    <sink_block_id>blocks_uchar_to_float_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_multiply_const_vxx_0</source_block_id>
-    <sink_block_id>uhd_usrp_sink_0</sink_block_id>
+    <source_block_id>blocks_vector_source_x_0</source_block_id>
+    <sink_block_id>digital_dxpsk_mod_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>uhd_usrp_source_0</source_block_id>
-    <sink_block_id>digital_dxpsk_demod_0</sink_block_id>
+    <source_block_id>digital_dxpsk_demod_0</source_block_id>
+    <sink_block_id>blocks_unpacked_to_packed_xx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>uhd_usrp_source_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_0</sink_block_id>
+    <source_block_id>digital_dxpsk_mod_0</source_block_id>
+    <sink_block_id>blocks_multiply_const_vxx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_vector_source_x_0</source_block_id>
-    <sink_block_id>digital_dxpsk_mod_0</sink_block_id>
+    <source_block_id>uhd_usrp_source_0</source_block_id>
+    <sink_block_id>digital_dxpsk_demod_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_dxpsk_demod_0</source_block_id>
-    <sink_block_id>blocks_unpacked_to_packed_xx_0</sink_block_id>
+    <source_block_id>uhd_usrp_source_0</source_block_id>
+    <sink_block_id>qtgui_const_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_unpacked_to_packed_xx_0</source_block_id>
-    <sink_block_id>blocks_uchar_to_float_0</sink_block_id>
+    <source_block_id>uhd_usrp_source_0</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_uchar_to_float_0</source_block_id>
-    <sink_block_id>qtgui_time_sink_x_1</sink_block_id>
+    <source_block_id>uhd_usrp_source_0</source_block_id>
+    <sink_block_id>qtgui_time_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
diff --git a/gr-uhd/examples/grc/uhd_fft.grc b/gr-uhd/examples/grc/uhd_fft.grc
index 6c8fb94475..64312d0887 100644
--- a/gr-uhd/examples/grc/uhd_fft.grc
+++ b/gr-uhd/examples/grc/uhd_fft.grc
@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='utf-8'?>
-<?grc format='1' created='3.7.8'?>
+<?grc format='1' created='3.7.8rc1'?>
 <flow_graph>
   <timestamp>Sat Jul 12 16:12:28 2014</timestamp>
   <block>
@@ -13,6 +13,10 @@
       <value></value>
     </param>
     <param>
+      <key>window_size</key>
+      <value>1280, 1024</value>
+    </param>
+    <param>
       <key>category</key>
       <value>Custom</value>
     </param>
@@ -68,10 +72,6 @@
       <key>title</key>
       <value>UHD FFT</value>
     </param>
-    <param>
-      <key>window_size</key>
-      <value>1280, 1024</value>
-    </param>
   </block>
   <block>
     <key>variable_qtgui_chooser</key>
@@ -953,7 +953,7 @@
     </param>
     <param>
       <key>legend</key>
-      <value>True</value>
+      <value>False</value>
     </param>
     <param>
       <key>alpha1</key>
@@ -1125,7 +1125,7 @@
     </param>
     <param>
       <key>name</key>
-      <value>Spectrum</value>
+      <value></value>
     </param>
     <param>
       <key>nconnections</key>
@@ -1208,7 +1208,7 @@
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(333, 436)</value>
+      <value>(312, 427)</value>
     </param>
     <param>
       <key>gui_hint</key>
@@ -1228,7 +1228,7 @@
     </param>
     <param>
       <key>legend</key>
-      <value>True</value>
+      <value>False</value>
     </param>
     <param>
       <key>alpha1</key>
@@ -1472,7 +1472,7 @@
     </param>
     <param>
       <key>name</key>
-      <value>QT GUI Plot</value>
+      <value></value>
     </param>
     <param>
       <key>nconnections</key>
@@ -1567,7 +1567,7 @@
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(325, 328)</value>
+      <value>(320, 315)</value>
     </param>
     <param>
       <key>gui_hint</key>
@@ -1727,7 +1727,7 @@
     </param>
     <param>
       <key>name</key>
-      <value>Scope</value>
+      <value></value>
     </param>
     <param>
       <key>nconnections</key>
diff --git a/gr-uhd/examples/grc/uhd_rx_dpsk.grc b/gr-uhd/examples/grc/uhd_rx_dpsk.grc
index 96b92c4484..2f37100d9d 100644
--- a/gr-uhd/examples/grc/uhd_rx_dpsk.grc
+++ b/gr-uhd/examples/grc/uhd_rx_dpsk.grc
@@ -1,22 +1,27 @@
-<?xml version='1.0' encoding='ASCII'?>
+<?xml version='1.0' encoding='utf-8'?>
+<?grc format='1' created='3.7.8rc1'?>
 <flow_graph>
   <timestamp>Sat Jul 12 15:58:45 2014</timestamp>
   <block>
     <key>options</key>
     <param>
-      <key>id</key>
-      <value>uhd_rx_dpsk</value>
+      <key>author</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>title</key>
-      <value>UHD RX DPSK</value>
+      <key>window_size</key>
+      <value>1280, 1024</value>
     </param>
     <param>
-      <key>author</key>
+      <key>category</key>
+      <value>Custom</value>
+    </param>
+    <param>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
@@ -24,24 +29,24 @@
       <value></value>
     </param>
     <param>
-      <key>window_size</key>
-      <value>1280, 1024</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>generate_options</key>
-      <value>qt_gui</value>
+      <key>_coordinate</key>
+      <value>(-1, 0)</value>
     </param>
     <param>
-      <key>category</key>
-      <value>Custom</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>run_options</key>
-      <value>prompt</value>
+      <key>generate_options</key>
+      <value>qt_gui</value>
     </param>
     <param>
-      <key>run</key>
-      <value>True</value>
+      <key>id</key>
+      <value>uhd_rx_dpsk</value>
     </param>
     <param>
       <key>max_nouts</key>
@@ -52,779 +57,952 @@
       <value></value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>run_options</key>
+      <value>prompt</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(-1, 0)</value>
+      <key>run</key>
+      <value>True</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>thread_safe_setters</key>
+      <value></value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>UHD RX DPSK</value>
     </param>
   </block>
   <block>
     <key>variable</key>
     <param>
-      <key>id</key>
-      <value>rolloff</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>.35</value>
+      <key>_coordinate</key>
+      <value>(657, 579)</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(570, 579)</value>
+      <key>id</key>
+      <value>nfilts</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>value</key>
+      <value>32</value>
     </param>
   </block>
   <block>
     <key>variable</key>
     <param>
-      <key>id</key>
-      <value>samps_per_sym</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>4</value>
+      <key>_coordinate</key>
+      <value>(570, 579)</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(881, -1)</value>
+      <key>id</key>
+      <value>rolloff</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>value</key>
+      <value>.35</value>
     </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>nfilts</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>32</value>
+      <key>_coordinate</key>
+      <value>(134, 448)</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>gui_hint</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(657, 579)</value>
-    </param>
-    <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>parameter</key>
     <param>
       <key>id</key>
-      <value>address</value>
+      <value>rx_freq_off</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Rx Freq Offset (Hz)</value>
     </param>
     <param>
-      <key>label</key>
-      <value>IP Address</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>value</key>
-      <value>addr=192.168.10.2</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>type</key>
-      <value>string</value>
+      <key>start</key>
+      <value>-100e3</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>a</value>
+      <key>step</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>stop</key>
+      <value>100e3</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(158, 0)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>parameter</key>
+    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>gain</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Default Gain</value>
+      <key>_coordinate</key>
+      <value>(881, -1)</value>
     </param>
     <param>
-      <key>value</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>id</key>
+      <value>samps_per_sym</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>g</value>
+      <key>value</key>
+      <value>4</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>value</key>
+      <value>2.45e9</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(596, 0)</value>
+      <value>(6, 448)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value></value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>parameter</key>
     <param>
       <key>id</key>
-      <value>freq</value>
+      <value>tun_freq</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>UHD Freq (Hz)</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Default Frequency</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>value</key>
-      <value>2.45e9</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>start</key>
+      <value>2.4e9</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>f</value>
+      <key>step</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>stop</key>
+      <value>2.5e9</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(438, 0)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>parameter</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>samp_rate</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Sample Rate</value>
+      <key>_coordinate</key>
+      <value>(286, 447)</value>
     </param>
     <param>
-      <key>value</key>
-      <value>1e6</value>
+      <key>gui_hint</key>
+      <value></value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>s</value>
+      <key>id</key>
+      <value>tun_gain</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>label</key>
+      <value>UHD Tx Gain</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(311, 0)</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
+    </param>
+    <param>
+      <key>start</key>
       <value>0</value>
     </param>
+    <param>
+      <key>step</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>stop</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>rangeType</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>widget</key>
+      <value>counter_slider</value>
+    </param>
   </block>
   <block>
     <key>parameter</key>
     <param>
-      <key>id</key>
-      <value>freq_offset</value>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Rx Frequency Offset</value>
+      <key>_coordinate</key>
+      <value>(158, 0)</value>
     </param>
     <param>
-      <key>value</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>id</key>
+      <value>address</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>IP Address</value>
     </param>
     <param>
       <key>short_id</key>
-      <value>o</value>
+      <value>a</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>string</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>addr=192.168.10.2</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_null_sink</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(720, 0)</value>
+      <key>bus_conns</key>
+      <value>[[0,],]</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>tun_freq</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>UHD Freq (Hz)</value>
+      <key>_coordinate</key>
+      <value>(620, 168)</value>
     </param>
     <param>
-      <key>value</key>
-      <value>2.45e9</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>start</key>
-      <value>2.4e9</value>
+      <key>id</key>
+      <value>blocks_null_sink_0</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>2.5e9</value>
+      <key>type</key>
+      <value>byte</value>
     </param>
     <param>
-      <key>step</key>
+      <key>num_inputs</key>
       <value>1</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>vlen</key>
+      <value>1</value>
     </param>
+  </block>
+  <block>
+    <key>digital_dxpsk_demod</key>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>excess_bw</key>
+      <value>0.35</value>
+    </param>
+    <param>
+      <key>freq_bw</key>
+      <value>6.28/100.0</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(6, 448)</value>
+      <value>(325, 112)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
+    <param>
+      <key>mod_code</key>
+      <value>"gray"</value>
+    </param>
     <param>
       <key>id</key>
-      <value>rx_freq_off</value>
+      <value>digital_dxpsk_demod_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>log</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Rx Freq Offset (Hz)</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>value</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>start</key>
-      <value>-100e3</value>
+      <key>phase_bw</key>
+      <value>6.28/100.0</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>100e3</value>
+      <key>samples_per_symbol</key>
+      <value>samps_per_sym</value>
     </param>
     <param>
-      <key>step</key>
-      <value>1</value>
+      <key>sync_out</key>
+      <value>False</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>timing_bw</key>
+      <value>6.28/100.0</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>type</key>
+      <value>dqpsk</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>verbose</key>
+      <value>False</value>
     </param>
+  </block>
+  <block>
+    <key>parameter</key>
     <param>
-      <key>gui_hint</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(134, 448)</value>
+      <value>(438, 0)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
+    <param>
+      <key>id</key>
+      <value>freq</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Default Frequency</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>f</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>2.45e9</value>
+    </param>
   </block>
   <block>
-    <key>variable_qtgui_range</key>
+    <key>parameter</key>
     <param>
-      <key>id</key>
-      <value>tun_gain</value>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>UHD Tx Gain</value>
+      <key>_coordinate</key>
+      <value>(720, 0)</value>
     </param>
     <param>
-      <key>value</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>start</key>
-      <value>0</value>
+      <key>id</key>
+      <value>freq_offset</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>20</value>
+      <key>label</key>
+      <value>Rx Frequency Offset</value>
     </param>
     <param>
-      <key>step</key>
-      <value>1</value>
+      <key>short_id</key>
+      <value>o</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>type</key>
+      <value>eng_float</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>value</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>parameter</key>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(286, 447)</value>
+      <value>(596, 0)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>uhd_usrp_source</key>
     <param>
       <key>id</key>
-      <value>uhd_usrp_source_0</value>
+      <value>gain</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Default Gain</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>g</value>
     </param>
     <param>
       <key>type</key>
-      <value>fc32</value>
+      <value>eng_float</value>
     </param>
     <param>
-      <key>otw</key>
-      <value></value>
+      <key>value</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>stream_args</key>
+      <key>autoscale</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>average</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>bw</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>stream_chans</key>
-      <value>[]</value>
+      <key>fc</key>
+      <value>tun_freq</value>
     </param>
     <param>
-      <key>dev_addr</key>
-      <value>address</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>dev_args</key>
-      <value>""</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>sync</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>clock_rate</key>
-      <value>0.0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>num_mboards</key>
-      <value>1</value>
+      <key>fftsize</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>clock_source0</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(340, 283)</value>
     </param>
     <param>
-      <key>time_source0</key>
+      <key>gui_hint</key>
       <value></value>
     </param>
     <param>
-      <key>sd_spec0</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>clock_source1</key>
-      <value></value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>time_source1</key>
-      <value></value>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0</value>
     </param>
     <param>
-      <key>sd_spec1</key>
-      <value></value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>clock_source2</key>
-      <value></value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>time_source2</key>
-      <value></value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>sd_spec2</key>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>clock_source3</key>
-      <value></value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>time_source3</key>
-      <value></value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>sd_spec3</key>
-      <value></value>
+      <key>color10</key>
+      <value>"dark blue"</value>
     </param>
     <param>
-      <key>clock_source4</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>time_source4</key>
-      <value></value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>sd_spec4</key>
-      <value></value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>clock_source5</key>
-      <value></value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>time_source5</key>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>sd_spec5</key>
-      <value></value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>clock_source6</key>
-      <value></value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>time_source6</key>
-      <value></value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>sd_spec6</key>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>clock_source7</key>
-      <value></value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>time_source7</key>
-      <value></value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>sd_spec7</key>
+      <key>color4</key>
+      <value>"black"</value>
+    </param>
+    <param>
+      <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>nchan</key>
+      <key>width4</key>
       <value>1</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>center_freq0</key>
-      <value>tun_freq+rx_freq_off</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>gain0</key>
-      <value>tun_gain</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
-      <key>ant0</key>
+      <key>width5</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha6</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color6</key>
+      <value>"magenta"</value>
+    </param>
+    <param>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>bw0</key>
-      <value>0</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq1</key>
-      <value>0</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain1</key>
-      <value>0</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>ant1</key>
+      <key>label7</key>
       <value></value>
     </param>
     <param>
-      <key>bw1</key>
-      <value>0</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq2</key>
-      <value>0</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain2</key>
-      <value>0</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>ant2</key>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>bw2</key>
-      <value>0</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq3</key>
-      <value>0</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain3</key>
-      <value>0</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>ant3</key>
+      <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>bw3</key>
-      <value>0</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq4</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain4</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant4</key>
-      <value></value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>bw4</key>
-      <value>0</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq5</key>
-      <value>0</value>
+      <key>showports</key>
+      <value>True</value>
     </param>
     <param>
-      <key>gain5</key>
+      <key>freqhalf</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant5</key>
-      <value></value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>bw5</key>
-      <value>0</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>center_freq6</key>
-      <value>0</value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>gain6</key>
-      <value>0</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>ant6</key>
-      <value></value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>bw6</key>
-      <value>0</value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
     </param>
     <param>
-      <key>center_freq7</key>
-      <value>0</value>
+      <key>ymax</key>
+      <value>10</value>
     </param>
     <param>
-      <key>gain7</key>
-      <value>0</value>
+      <key>ymin</key>
+      <value>-140</value>
     </param>
+  </block>
+  <block>
+    <key>parameter</key>
     <param>
-      <key>ant7</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>bw7</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq8</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>gain8</key>
+      <key>_coordinate</key>
+      <value>(311, 0)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant8</key>
+      <key>id</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Sample Rate</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>s</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>1e6</value>
+    </param>
+  </block>
+  <block>
+    <key>uhd_usrp_source</key>
+    <param>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>bw8</key>
-      <value>0</value>
+      <key>ant0</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq9</key>
+      <key>bw0</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain9</key>
-      <value>0</value>
+      <key>center_freq0</key>
+      <value>tun_freq+rx_freq_off</value>
     </param>
     <param>
-      <key>ant9</key>
+      <key>norm_gain0</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain0</key>
+      <value>tun_gain</value>
+    </param>
+    <param>
+      <key>ant10</key>
       <value></value>
     </param>
     <param>
-      <key>bw9</key>
+      <key>bw10</key>
       <value>0</value>
     </param>
     <param>
@@ -832,15 +1010,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain10</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain10</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant10</key>
+      <key>ant11</key>
       <value></value>
     </param>
     <param>
-      <key>bw10</key>
+      <key>bw11</key>
       <value>0</value>
     </param>
     <param>
@@ -848,15 +1030,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain11</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain11</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant11</key>
+      <key>ant12</key>
       <value></value>
     </param>
     <param>
-      <key>bw11</key>
+      <key>bw12</key>
       <value>0</value>
     </param>
     <param>
@@ -864,15 +1050,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain12</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain12</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant12</key>
+      <key>ant13</key>
       <value></value>
     </param>
     <param>
-      <key>bw12</key>
+      <key>bw13</key>
       <value>0</value>
     </param>
     <param>
@@ -880,15 +1070,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain13</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain13</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant13</key>
+      <key>ant14</key>
       <value></value>
     </param>
     <param>
-      <key>bw13</key>
+      <key>bw14</key>
       <value>0</value>
     </param>
     <param>
@@ -896,15 +1090,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain14</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain14</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant14</key>
+      <key>ant15</key>
       <value></value>
     </param>
     <param>
-      <key>bw14</key>
+      <key>bw15</key>
       <value>0</value>
     </param>
     <param>
@@ -912,15 +1110,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain15</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain15</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant15</key>
+      <key>ant16</key>
       <value></value>
     </param>
     <param>
-      <key>bw15</key>
+      <key>bw16</key>
       <value>0</value>
     </param>
     <param>
@@ -928,15 +1130,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain16</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain16</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant16</key>
+      <key>ant17</key>
       <value></value>
     </param>
     <param>
-      <key>bw16</key>
+      <key>bw17</key>
       <value>0</value>
     </param>
     <param>
@@ -944,15 +1150,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain17</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain17</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant17</key>
+      <key>ant18</key>
       <value></value>
     </param>
     <param>
-      <key>bw17</key>
+      <key>bw18</key>
       <value>0</value>
     </param>
     <param>
@@ -960,15 +1170,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain18</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain18</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant18</key>
+      <key>ant19</key>
       <value></value>
     </param>
     <param>
-      <key>bw18</key>
+      <key>bw19</key>
       <value>0</value>
     </param>
     <param>
@@ -976,23 +1190,31 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain19</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain19</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant19</key>
+      <key>ant1</key>
       <value></value>
     </param>
     <param>
-      <key>bw19</key>
+      <key>bw1</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq20</key>
+      <key>center_freq1</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain20</key>
+      <key>norm_gain1</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain1</key>
       <value>0</value>
     </param>
     <param>
@@ -1004,11 +1226,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq21</key>
+      <key>center_freq20</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain21</key>
+      <key>norm_gain20</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain20</key>
       <value>0</value>
     </param>
     <param>
@@ -1020,11 +1246,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq22</key>
+      <key>center_freq21</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain22</key>
+      <key>norm_gain21</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain21</key>
       <value>0</value>
     </param>
     <param>
@@ -1036,11 +1266,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq23</key>
+      <key>center_freq22</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain23</key>
+      <key>norm_gain22</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain22</key>
       <value>0</value>
     </param>
     <param>
@@ -1052,11 +1286,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq24</key>
+      <key>center_freq23</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain24</key>
+      <key>norm_gain23</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain23</key>
       <value>0</value>
     </param>
     <param>
@@ -1068,11 +1306,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq25</key>
+      <key>center_freq24</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain25</key>
+      <key>norm_gain24</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain24</key>
       <value>0</value>
     </param>
     <param>
@@ -1084,11 +1326,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq26</key>
+      <key>center_freq25</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain26</key>
+      <key>norm_gain25</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain25</key>
       <value>0</value>
     </param>
     <param>
@@ -1100,11 +1346,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq27</key>
+      <key>center_freq26</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain27</key>
+      <key>norm_gain26</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain26</key>
       <value>0</value>
     </param>
     <param>
@@ -1116,11 +1366,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq28</key>
+      <key>center_freq27</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain28</key>
+      <key>norm_gain27</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain27</key>
       <value>0</value>
     </param>
     <param>
@@ -1132,11 +1386,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq29</key>
+      <key>center_freq28</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain29</key>
+      <key>norm_gain28</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain28</key>
       <value>0</value>
     </param>
     <param>
@@ -1148,417 +1406,388 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq30</key>
+      <key>center_freq29</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain30</key>
+      <key>norm_gain29</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain29</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant30</key>
+      <key>ant2</key>
       <value></value>
     </param>
     <param>
-      <key>bw30</key>
+      <key>bw2</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq31</key>
+      <key>center_freq2</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain31</key>
+      <key>norm_gain2</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain2</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant31</key>
+      <key>ant30</key>
       <value></value>
     </param>
     <param>
-      <key>bw31</key>
+      <key>bw30</key>
       <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>center_freq30</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>norm_gain30</key>
+      <value>False</value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>gain30</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>ant31</key>
+      <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(0, 143)</value>
+      <key>bw31</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>center_freq31</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_null_sink</key>
     <param>
-      <key>id</key>
-      <value>blocks_null_sink_0</value>
+      <key>norm_gain31</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>gain31</key>
+      <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>byte</value>
+      <key>ant3</key>
+      <value></value>
     </param>
     <param>
-      <key>vlen</key>
-      <value>1</value>
+      <key>bw3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>num_inputs</key>
-      <value>1</value>
+      <key>center_freq3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>bus_conns</key>
-      <value>[[0,],]</value>
+      <key>norm_gain3</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>gain3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>ant4</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(620, 168)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
+      <key>bw4</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_dxpsk_demod</key>
     <param>
-      <key>id</key>
-      <value>digital_dxpsk_demod_0</value>
+      <key>center_freq4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>norm_gain4</key>
+      <value>False</value>
     </param>
     <param>
-      <key>type</key>
-      <value>dqpsk</value>
+      <key>gain4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>samples_per_symbol</key>
-      <value>samps_per_sym</value>
+      <key>ant5</key>
+      <value></value>
     </param>
     <param>
-      <key>excess_bw</key>
-      <value>0.35</value>
+      <key>bw5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>freq_bw</key>
-      <value>6.28/100.0</value>
+      <key>center_freq5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>phase_bw</key>
-      <value>6.28/100.0</value>
+      <key>norm_gain5</key>
+      <value>False</value>
     </param>
     <param>
-      <key>timing_bw</key>
-      <value>6.28/100.0</value>
+      <key>gain5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>mod_code</key>
-      <value>"gray"</value>
+      <key>ant6</key>
+      <value></value>
     </param>
     <param>
-      <key>verbose</key>
-      <value>False</value>
+      <key>bw6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>log</key>
-      <value>False</value>
+      <key>center_freq6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sync_out</key>
+      <key>norm_gain6</key>
       <value>False</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>gain6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>ant7</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>bw7</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>center_freq7</key>
       <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(325, 112)</value>
+      <key>norm_gain7</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>gain7</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_freq_sink_x_0</value>
+      <key>ant8</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>bw8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>center_freq8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>norm_gain8</key>
+      <value>False</value>
     </param>
     <param>
-      <key>fftsize</key>
-      <value>1024</value>
+      <key>gain8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>wintype</key>
-      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+      <key>ant9</key>
+      <value></value>
     </param>
     <param>
-      <key>fc</key>
-      <value>tun_freq</value>
+      <key>bw9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>bw</key>
-      <value>samp_rate</value>
+      <key>center_freq9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>autoscale</key>
+      <key>norm_gain9</key>
       <value>False</value>
     </param>
     <param>
-      <key>average</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>ymin</key>
-      <value>-140</value>
-    </param>
-    <param>
-      <key>ymax</key>
-      <value>10</value>
-    </param>
-    <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>gain9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>clock_rate</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>gui_hint</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>label1</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>dev_addr</key>
+      <value>address</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>dev_args</key>
+      <value>""</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>label2</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(0, 143)</value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>id</key>
+      <value>uhd_usrp_source_0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label3</key>
+      <key>clock_source0</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>color3</key>
-      <value>"green"</value>
-    </param>
-    <param>
-      <key>alpha3</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>label4</key>
+      <key>sd_spec0</key>
       <value></value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>time_source0</key>
+      <value></value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>clock_source1</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>sd_spec1</key>
+      <value></value>
     </param>
     <param>
-      <key>label5</key>
+      <key>time_source1</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>clock_source2</key>
+      <value></value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>sd_spec2</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>time_source2</key>
+      <value></value>
     </param>
     <param>
-      <key>label6</key>
+      <key>clock_source3</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>sd_spec3</key>
+      <value></value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>time_source3</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>clock_source4</key>
+      <value></value>
     </param>
     <param>
-      <key>label7</key>
+      <key>sd_spec4</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>time_source4</key>
+      <value></value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>clock_source5</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>sd_spec5</key>
+      <value></value>
     </param>
     <param>
-      <key>label8</key>
+      <key>time_source5</key>
       <value></value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>clock_source6</key>
+      <value></value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>sd_spec6</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>time_source6</key>
+      <value></value>
     </param>
     <param>
-      <key>label9</key>
+      <key>clock_source7</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>sd_spec7</key>
+      <value></value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>time_source7</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>nchan</key>
+      <value>1</value>
     </param>
     <param>
-      <key>width10</key>
+      <key>num_mboards</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"dark blue"</value>
+      <key>type</key>
+      <value>fc32</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>stream_args</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>stream_chans</key>
+      <value>[]</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(340, 283)</value>
+      <key>sync</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>otw</key>
+      <value></value>
     </param>
   </block>
   <connection>
diff --git a/gr-uhd/examples/grc/uhd_two_tone_loopback.grc b/gr-uhd/examples/grc/uhd_two_tone_loopback.grc
index f164d8522a..055828a08b 100644
--- a/gr-uhd/examples/grc/uhd_two_tone_loopback.grc
+++ b/gr-uhd/examples/grc/uhd_two_tone_loopback.grc
@@ -1,39 +1,60 @@
-<?xml version='1.0' encoding='ASCII'?>
+<?xml version='1.0' encoding='utf-8'?>
+<?grc format='1' created='3.7.8rc1'?>
 <flow_graph>
   <timestamp>Sat Jul 12 14:48:02 2014</timestamp>
   <block>
     <key>options</key>
     <param>
-      <key>id</key>
-      <value>uhd_two_tone_loopback</value>
+      <key>author</key>
+      <value>Example</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>title</key>
-      <value>UHD Loopback - 2 Tone</value>
+      <key>window_size</key>
+      <value>1280, 1024</value>
     </param>
     <param>
-      <key>author</key>
-      <value>Example</value>
+      <key>category</key>
+      <value>Custom</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>description</key>
       <value>Loopback test</value>
     </param>
     <param>
-      <key>window_size</key>
-      <value>1280, 1024</value>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1, 0)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
       <key>generate_options</key>
       <value>qt_gui</value>
     </param>
     <param>
-      <key>category</key>
-      <value>Custom</value>
+      <key>id</key>
+      <value>uhd_two_tone_loopback</value>
+    </param>
+    <param>
+      <key>max_nouts</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>realtime_scheduling</key>
+      <value></value>
     </param>
     <param>
       <key>run_options</key>
@@ -44,1637 +65,1787 @@
       <value>True</value>
     </param>
     <param>
-      <key>max_nouts</key>
-      <value>0</value>
+      <key>thread_safe_setters</key>
+      <value></value>
     </param>
     <param>
-      <key>realtime_scheduling</key>
-      <value></value>
+      <key>title</key>
+      <value>UHD Loopback - 2 Tone</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>value</key>
+      <value>0.1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(1, 0)</value>
+      <value>(0, 283)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>1,0,1,2</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>parameter</key>
     <param>
       <key>id</key>
-      <value>samp_rate</value>
+      <value>noise_ampl</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Noise Amplitude</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Sample Rate</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>value</key>
-      <value>500e3</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>s</value>
+      <key>step</key>
+      <value>.001</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>stop</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(523, 0)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>parameter</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>rx_gain</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>samp_rate/4</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Default RX Gain</value>
+      <key>_coordinate</key>
+      <value>(1, 131)</value>
     </param>
     <param>
-      <key>value</key>
+      <key>gui_hint</key>
+      <value>0,0,1,2</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>id</key>
+      <value>tone1</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value></value>
+      <key>label</key>
+      <value>Tone 1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1123, 0)</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>start</key>
+      <value>-samp_rate/2</value>
     </param>
-  </block>
-  <block>
-    <key>parameter</key>
     <param>
-      <key>id</key>
-      <value>freq_offset</value>
+      <key>step</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>stop</key>
+      <value>samp_rate/2</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Rx Frequency Offset</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>o</value>
+      <key>value</key>
+      <value>samp_rate/5</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(804, 0)</value>
+      <value>(126, 132)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>0,2,1,2</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>parameter</key>
     <param>
       <key>id</key>
-      <value>freq</value>
+      <value>tone2</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Tone 2</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Default Frequency</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>value</key>
-      <value>2.45e9</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>start</key>
+      <value>-samp_rate/2</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>f</value>
+      <key>step</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>stop</key>
+      <value>samp_rate/2</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(649, 0)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>parameter</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>tx_gain</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0.15</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Default TX Gain</value>
+      <key>_coordinate</key>
+      <value>(152, 286)</value>
     </param>
     <param>
-      <key>value</key>
+      <key>gui_hint</key>
+      <value>1,2,1,2</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>id</key>
+      <value>tone_ampl</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value></value>
+      <key>label</key>
+      <value>Tone Amplitude</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(983, 0)</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>start</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>parameter</key>
     <param>
-      <key>id</key>
-      <value>address0</value>
+      <key>step</key>
+      <value>.001</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>stop</key>
+      <value>1</value>
     </param>
     <param>
-      <key>label</key>
-      <value>IP Address, Dev 0</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>value</key>
-      <value>addr=192.168.10.2</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>type</key>
-      <value>string</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>short_id</key>
-      <value></value>
+      <key>value</key>
+      <value>2.45e9</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(177, 0)</value>
+      <value>(80, 431)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>3,0,1,4</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>parameter</key>
     <param>
       <key>id</key>
-      <value>address1</value>
+      <value>tun_freq</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>UHD Freq (Hz)</value>
     </param>
     <param>
-      <key>label</key>
-      <value>IP Address, Dev 1</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>value</key>
-      <value>addr=192.168.10.2</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>type</key>
-      <value>string</value>
+      <key>start</key>
+      <value>2.4e9</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value></value>
+      <key>step</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>stop</key>
+      <value>2.5e9</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(337, 0)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>uhd_usrp_source</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>uhd_usrp_source_0</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>fc32</value>
+      <key>_coordinate</key>
+      <value>(120, 571)</value>
     </param>
     <param>
-      <key>otw</key>
-      <value></value>
+      <key>gui_hint</key>
+      <value>4,2,1,2</value>
     </param>
     <param>
-      <key>stream_args</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>stream_chans</key>
-      <value>[]</value>
+      <key>id</key>
+      <value>tun_rx_gain</value>
     </param>
     <param>
-      <key>dev_addr</key>
-      <value>address1</value>
+      <key>label</key>
+      <value>UHD Rx Gain</value>
     </param>
     <param>
-      <key>dev_args</key>
-      <value>""</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>sync</key>
-      <value></value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>clock_rate</key>
-      <value>0.0</value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>num_mboards</key>
+      <key>step</key>
       <value>1</value>
     </param>
     <param>
-      <key>clock_source0</key>
-      <value></value>
+      <key>stop</key>
+      <value>20</value>
     </param>
     <param>
-      <key>time_source0</key>
-      <value></value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>sd_spec0</key>
-      <value>B:0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>clock_source1</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>time_source1</key>
-      <value></value>
+      <key>value</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sd_spec1</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>clock_source2</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(-1, 573)</value>
     </param>
     <param>
-      <key>time_source2</key>
-      <value></value>
+      <key>gui_hint</key>
+      <value>4,0,1,2</value>
     </param>
     <param>
-      <key>sd_spec2</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>clock_source3</key>
-      <value></value>
+      <key>id</key>
+      <value>tun_tx_gain</value>
     </param>
     <param>
-      <key>time_source3</key>
-      <value></value>
+      <key>label</key>
+      <value>UHD Tx Gain</value>
     </param>
     <param>
-      <key>sd_spec3</key>
-      <value></value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>clock_source4</key>
-      <value></value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>time_source4</key>
-      <value></value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sd_spec4</key>
-      <value></value>
+      <key>step</key>
+      <value>1</value>
     </param>
     <param>
-      <key>clock_source5</key>
-      <value></value>
+      <key>stop</key>
+      <value>20</value>
     </param>
     <param>
-      <key>time_source5</key>
-      <value></value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>sd_spec5</key>
-      <value></value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
+  </block>
+  <block>
+    <key>parameter</key>
     <param>
-      <key>clock_source6</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>time_source6</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>sd_spec6</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>clock_source7</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(177, 0)</value>
     </param>
     <param>
-      <key>time_source7</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sd_spec7</key>
-      <value></value>
+      <key>id</key>
+      <value>address0</value>
     </param>
     <param>
-      <key>nchan</key>
-      <value>1</value>
+      <key>label</key>
+      <value>IP Address, Dev 0</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>short_id</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq0</key>
-      <value>tun_freq</value>
+      <key>type</key>
+      <value>string</value>
     </param>
     <param>
-      <key>gain0</key>
-      <value>tun_rx_gain</value>
+      <key>value</key>
+      <value>addr=192.168.10.2</value>
     </param>
+  </block>
+  <block>
+    <key>parameter</key>
     <param>
-      <key>ant0</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>bw0</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq1</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>gain1</key>
+      <key>_coordinate</key>
+      <value>(337, 0)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant1</key>
-      <value></value>
+      <key>id</key>
+      <value>address1</value>
     </param>
     <param>
-      <key>bw1</key>
-      <value>0</value>
+      <key>label</key>
+      <value>IP Address, Dev 1</value>
     </param>
     <param>
-      <key>center_freq2</key>
-      <value>0</value>
+      <key>short_id</key>
+      <value></value>
     </param>
     <param>
-      <key>gain2</key>
-      <value>0</value>
+      <key>type</key>
+      <value>string</value>
     </param>
     <param>
-      <key>ant2</key>
-      <value></value>
+      <key>value</key>
+      <value>addr=192.168.10.2</value>
     </param>
+  </block>
+  <block>
+    <key>analog_noise_source_x</key>
     <param>
-      <key>bw2</key>
-      <value>0</value>
+      <key>amp</key>
+      <value>noise_ampl</value>
     </param>
     <param>
-      <key>center_freq3</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>gain3</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>ant3</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>bw3</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>center_freq4</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(551, 324)</value>
     </param>
     <param>
-      <key>gain4</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant4</key>
-      <value></value>
+      <key>id</key>
+      <value>analog_noise_source_x_0</value>
     </param>
     <param>
-      <key>bw4</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq5</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain5</key>
-      <value>0</value>
+      <key>noise_type</key>
+      <value>analog.GR_GAUSSIAN</value>
     </param>
     <param>
-      <key>ant5</key>
-      <value></value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>bw5</key>
-      <value>0</value>
+      <key>seed</key>
+      <value>-42</value>
     </param>
+  </block>
+  <block>
+    <key>analog_sig_source_x</key>
     <param>
-      <key>center_freq6</key>
-      <value>0</value>
+      <key>amp</key>
+      <value>tone_ampl</value>
     </param>
     <param>
-      <key>gain6</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>ant6</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>bw6</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq7</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>gain7</key>
-      <value>0</value>
+      <key>freq</key>
+      <value>tone1</value>
     </param>
     <param>
-      <key>ant7</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(541, 98)</value>
     </param>
     <param>
-      <key>bw7</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq8</key>
-      <value>0</value>
+      <key>id</key>
+      <value>analog_sig_source_x_0</value>
     </param>
     <param>
-      <key>gain8</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant8</key>
-      <value></value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>bw8</key>
+      <key>offset</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq9</key>
-      <value>0</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>gain9</key>
-      <value>0</value>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>ant9</key>
-      <value></value>
+      <key>waveform</key>
+      <value>analog.GR_COS_WAVE</value>
     </param>
+  </block>
+  <block>
+    <key>analog_sig_source_x</key>
     <param>
-      <key>bw9</key>
-      <value>0</value>
+      <key>amp</key>
+      <value>tone_ampl</value>
     </param>
     <param>
-      <key>center_freq10</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>gain10</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>ant10</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>bw10</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>center_freq11</key>
-      <value>0</value>
+      <key>freq</key>
+      <value>tone2</value>
     </param>
     <param>
-      <key>gain11</key>
+      <key>_coordinate</key>
+      <value>(542, 209)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant11</key>
-      <value></value>
+      <key>id</key>
+      <value>analog_sig_source_x_1</value>
     </param>
     <param>
-      <key>bw11</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq12</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain12</key>
+      <key>offset</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant12</key>
-      <value></value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>bw12</key>
-      <value>0</value>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>center_freq13</key>
-      <value>0</value>
+      <key>waveform</key>
+      <value>analog.GR_COS_WAVE</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_add_xx</key>
     <param>
-      <key>gain13</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>ant13</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>bw13</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq14</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>gain14</key>
+      <key>_coordinate</key>
+      <value>(806, 134)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant14</key>
-      <value></value>
+      <key>id</key>
+      <value>blocks_add_xx</value>
     </param>
     <param>
-      <key>bw14</key>
-      <value>0</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>center_freq15</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain15</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant15</key>
-      <value></value>
+      <key>num_inputs</key>
+      <value>3</value>
     </param>
     <param>
-      <key>bw15</key>
-      <value>0</value>
+      <key>vlen</key>
+      <value>1</value>
     </param>
+  </block>
+  <block>
+    <key>parameter</key>
     <param>
-      <key>center_freq16</key>
-      <value>0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>gain16</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>ant16</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>bw16</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(649, 0)</value>
     </param>
     <param>
-      <key>center_freq17</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain17</key>
-      <value>0</value>
+      <key>id</key>
+      <value>freq</value>
     </param>
     <param>
-      <key>ant17</key>
-      <value></value>
+      <key>label</key>
+      <value>Default Frequency</value>
     </param>
     <param>
-      <key>bw17</key>
-      <value>0</value>
+      <key>short_id</key>
+      <value>f</value>
     </param>
     <param>
-      <key>center_freq18</key>
-      <value>0</value>
+      <key>type</key>
+      <value>eng_float</value>
     </param>
     <param>
-      <key>gain18</key>
-      <value>0</value>
+      <key>value</key>
+      <value>2.45e9</value>
     </param>
+  </block>
+  <block>
+    <key>parameter</key>
     <param>
-      <key>ant18</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>bw18</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq19</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>gain19</key>
+      <key>_coordinate</key>
+      <value>(804, 0)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant19</key>
-      <value></value>
+      <key>id</key>
+      <value>freq_offset</value>
     </param>
     <param>
-      <key>bw19</key>
-      <value>0</value>
+      <key>label</key>
+      <value>Rx Frequency Offset</value>
     </param>
     <param>
-      <key>center_freq20</key>
-      <value>0</value>
+      <key>short_id</key>
+      <value>o</value>
     </param>
     <param>
-      <key>gain20</key>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>value</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>ant20</key>
+      <key>autoscale</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>average</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>bw</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>bw20</key>
+      <key>fc</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq21</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>gain21</key>
-      <value>0</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>ant21</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>bw21</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>center_freq22</key>
-      <value>0</value>
+      <key>fftsize</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>gain22</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(1086, 281)</value>
     </param>
     <param>
-      <key>ant22</key>
-      <value></value>
+      <key>gui_hint</key>
+      <value>2,0,1,4</value>
     </param>
     <param>
-      <key>bw22</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq23</key>
-      <value>0</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gain23</key>
-      <value>0</value>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0</value>
     </param>
     <param>
-      <key>ant23</key>
+      <key>legend</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>alpha1</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>bw23</key>
-      <value>0</value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq24</key>
-      <value>0</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain24</key>
-      <value>0</value>
+      <key>color10</key>
+      <value>"dark blue"</value>
     </param>
     <param>
-      <key>ant24</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>bw24</key>
-      <value>0</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq25</key>
-      <value>0</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain25</key>
-      <value>0</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>ant25</key>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>bw25</key>
-      <value>0</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq26</key>
-      <value>0</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain26</key>
-      <value>0</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>ant26</key>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>bw26</key>
-      <value>0</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq27</key>
-      <value>0</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain27</key>
-      <value>0</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>ant27</key>
+      <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>bw27</key>
-      <value>0</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq28</key>
-      <value>0</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain28</key>
-      <value>0</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>ant28</key>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>bw28</key>
-      <value>0</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq29</key>
-      <value>0</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain29</key>
-      <value>0</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>ant29</key>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>bw29</key>
-      <value>0</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq30</key>
-      <value>0</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain30</key>
-      <value>0</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>ant30</key>
+      <key>label7</key>
       <value></value>
     </param>
     <param>
-      <key>bw30</key>
-      <value>0</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq31</key>
-      <value>0</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain31</key>
-      <value>0</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>ant31</key>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>bw31</key>
-      <value>0</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>color9</key>
+      <value>"dark green"</value>
+    </param>
+    <param>
+      <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
       <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(813, 281)</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>name</key>
+      <value>""</value>
     </param>
-  </block>
-  <block>
-    <key>analog_noise_source_x</key>
     <param>
-      <key>id</key>
-      <value>analog_noise_source_x_0</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
+      <key>showports</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>freqhalf</key>
+      <value>True</value>
     </param>
     <param>
-      <key>noise_type</key>
-      <value>analog.GR_GAUSSIAN</value>
+      <key>tr_chan</key>
+      <value>0</value>
     </param>
     <param>
-      <key>amp</key>
-      <value>noise_ampl</value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>seed</key>
-      <value>-42</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(551, 324)</value>
+      <key>ymax</key>
+      <value>10</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>ymin</key>
+      <value>-140</value>
     </param>
   </block>
   <block>
-    <key>analog_sig_source_x</key>
+    <key>parameter</key>
     <param>
-      <key>id</key>
-      <value>analog_sig_source_x_0</value>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>_coordinate</key>
+      <value>(1123, 0)</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>waveform</key>
-      <value>analog.GR_COS_WAVE</value>
+      <key>id</key>
+      <value>rx_gain</value>
     </param>
     <param>
-      <key>freq</key>
-      <value>tone1</value>
+      <key>label</key>
+      <value>Default RX Gain</value>
     </param>
     <param>
-      <key>amp</key>
-      <value>tone_ampl</value>
+      <key>short_id</key>
+      <value></value>
     </param>
     <param>
-      <key>offset</key>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>value</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>parameter</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(541, 98)</value>
+      <value>(523, 0)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>analog_sig_source_x</key>
     <param>
       <key>id</key>
-      <value>analog_sig_source_x_1</value>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Sample Rate</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>s</value>
     </param>
     <param>
       <key>type</key>
-      <value>complex</value>
+      <value>eng_float</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>value</key>
+      <value>500e3</value>
     </param>
+  </block>
+  <block>
+    <key>parameter</key>
     <param>
-      <key>waveform</key>
-      <value>analog.GR_COS_WAVE</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>freq</key>
-      <value>tone2</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>amp</key>
-      <value>tone_ampl</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>offset</key>
-      <value>0</value>
+      <key>_coordinate</key>
+      <value>(983, 0)</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>id</key>
+      <value>tx_gain</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>label</key>
+      <value>Default TX Gain</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>short_id</key>
+      <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(542, 209)</value>
+      <key>type</key>
+      <value>eng_float</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>value</key>
       <value>0</value>
     </param>
   </block>
   <block>
-    <key>blocks_add_xx</key>
+    <key>uhd_usrp_sink</key>
     <param>
-      <key>id</key>
-      <value>blocks_add_xx</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>ant0</key>
+      <value></value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>bw0</key>
+      <value>0</value>
     </param>
     <param>
-      <key>num_inputs</key>
-      <value>3</value>
+      <key>center_freq0</key>
+      <value>tun_freq</value>
     </param>
     <param>
-      <key>vlen</key>
-      <value>1</value>
+      <key>norm_gain0</key>
+      <value>False</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>gain0</key>
+      <value>tun_rx_gain</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>ant10</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>bw10</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>center_freq10</key>
       <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(806, 134)</value>
+      <key>norm_gain10</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>gain10</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_freq_sink_x_0</value>
+      <key>ant11</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>bw11</key>
+      <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>center_freq11</key>
+      <value>0</value>
     </param>
     <param>
-      <key>name</key>
-      <value>""</value>
+      <key>norm_gain11</key>
+      <value>False</value>
     </param>
     <param>
-      <key>fftsize</key>
-      <value>1024</value>
+      <key>gain11</key>
+      <value>0</value>
     </param>
     <param>
-      <key>wintype</key>
-      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+      <key>ant12</key>
+      <value></value>
     </param>
     <param>
-      <key>fc</key>
+      <key>bw12</key>
       <value>0</value>
     </param>
     <param>
-      <key>bw</key>
-      <value>samp_rate</value>
+      <key>center_freq12</key>
+      <value>0</value>
     </param>
     <param>
-      <key>autoscale</key>
+      <key>norm_gain12</key>
       <value>False</value>
     </param>
     <param>
-      <key>average</key>
-      <value>1.0</value>
+      <key>gain12</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-140</value>
+      <key>ant13</key>
+      <value></value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>10</value>
+      <key>bw13</key>
+      <value>0</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>center_freq13</key>
+      <value>0</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>norm_gain13</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>2,0,1,4</value>
+      <key>gain13</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label1</key>
+      <key>ant14</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>bw14</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>center_freq14</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>norm_gain14</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label2</key>
+      <key>gain14</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant15</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>bw15</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>center_freq15</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>norm_gain15</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label3</key>
+      <key>gain15</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant16</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>bw16</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>center_freq16</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>norm_gain16</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label4</key>
+      <key>gain16</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant17</key>
       <value></value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>bw17</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>center_freq17</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>norm_gain17</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label5</key>
+      <key>gain17</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant18</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>bw18</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>center_freq18</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>norm_gain18</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label6</key>
+      <key>gain18</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant19</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>bw19</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>center_freq19</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>norm_gain19</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label7</key>
+      <key>gain19</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant1</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>bw1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>center_freq1</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>norm_gain1</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label8</key>
+      <key>gain1</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant20</key>
       <value></value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>bw20</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>center_freq20</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>norm_gain20</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label9</key>
+      <key>gain20</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant21</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>bw21</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>center_freq21</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>norm_gain21</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label10</key>
-      <value></value>
+      <key>gain21</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>ant22</key>
+      <value></value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"dark blue"</value>
+      <key>bw22</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>center_freq22</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>norm_gain22</key>
+      <value>False</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>gain22</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1086, 281)</value>
+      <key>ant23</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>bw23</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>uhd_usrp_sink</key>
     <param>
-      <key>id</key>
-      <value>uhd_usrp_sink_0</value>
+      <key>center_freq23</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>norm_gain23</key>
+      <value>False</value>
     </param>
     <param>
-      <key>type</key>
-      <value>fc32</value>
+      <key>gain23</key>
+      <value>0</value>
     </param>
     <param>
-      <key>otw</key>
+      <key>ant24</key>
       <value></value>
     </param>
     <param>
-      <key>stream_args</key>
-      <value></value>
+      <key>bw24</key>
+      <value>0</value>
     </param>
     <param>
-      <key>stream_chans</key>
-      <value>[]</value>
+      <key>center_freq24</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dev_addr</key>
-      <value>address0</value>
+      <key>norm_gain24</key>
+      <value>False</value>
     </param>
     <param>
-      <key>dev_args</key>
-      <value>""</value>
+      <key>gain24</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sync</key>
+      <key>ant25</key>
       <value></value>
     </param>
     <param>
-      <key>clock_rate</key>
-      <value>0.0</value>
-    </param>
-    <param>
-      <key>num_mboards</key>
-      <value>1</value>
+      <key>bw25</key>
+      <value>0</value>
     </param>
     <param>
-      <key>clock_source0</key>
-      <value></value>
+      <key>center_freq25</key>
+      <value>0</value>
     </param>
     <param>
-      <key>time_source0</key>
-      <value></value>
+      <key>norm_gain25</key>
+      <value>False</value>
     </param>
     <param>
-      <key>sd_spec0</key>
-      <value>A:0</value>
+      <key>gain25</key>
+      <value>0</value>
     </param>
     <param>
-      <key>clock_source1</key>
+      <key>ant26</key>
       <value></value>
     </param>
     <param>
-      <key>time_source1</key>
-      <value></value>
+      <key>bw26</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sd_spec1</key>
-      <value></value>
+      <key>center_freq26</key>
+      <value>0</value>
     </param>
     <param>
-      <key>clock_source2</key>
-      <value></value>
+      <key>norm_gain26</key>
+      <value>False</value>
     </param>
     <param>
-      <key>time_source2</key>
-      <value></value>
+      <key>gain26</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sd_spec2</key>
+      <key>ant27</key>
       <value></value>
     </param>
     <param>
-      <key>clock_source3</key>
-      <value></value>
+      <key>bw27</key>
+      <value>0</value>
     </param>
     <param>
-      <key>time_source3</key>
-      <value></value>
+      <key>center_freq27</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sd_spec3</key>
-      <value></value>
+      <key>norm_gain27</key>
+      <value>False</value>
     </param>
     <param>
-      <key>clock_source4</key>
-      <value></value>
+      <key>gain27</key>
+      <value>0</value>
     </param>
     <param>
-      <key>time_source4</key>
+      <key>ant28</key>
       <value></value>
     </param>
     <param>
-      <key>sd_spec4</key>
-      <value></value>
+      <key>bw28</key>
+      <value>0</value>
     </param>
     <param>
-      <key>clock_source5</key>
-      <value></value>
+      <key>center_freq28</key>
+      <value>0</value>
     </param>
     <param>
-      <key>time_source5</key>
-      <value></value>
+      <key>norm_gain28</key>
+      <value>False</value>
     </param>
     <param>
-      <key>sd_spec5</key>
-      <value></value>
+      <key>gain28</key>
+      <value>0</value>
     </param>
     <param>
-      <key>clock_source6</key>
+      <key>ant29</key>
       <value></value>
     </param>
     <param>
-      <key>time_source6</key>
-      <value></value>
+      <key>bw29</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sd_spec6</key>
-      <value></value>
+      <key>center_freq29</key>
+      <value>0</value>
     </param>
     <param>
-      <key>clock_source7</key>
-      <value></value>
+      <key>norm_gain29</key>
+      <value>False</value>
     </param>
     <param>
-      <key>time_source7</key>
-      <value></value>
+      <key>gain29</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sd_spec7</key>
+      <key>ant2</key>
       <value></value>
     </param>
     <param>
-      <key>nchan</key>
-      <value>1</value>
+      <key>bw2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>center_freq2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>center_freq0</key>
-      <value>tun_freq</value>
+      <key>norm_gain2</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gain0</key>
-      <value>tun_rx_gain</value>
+      <key>gain2</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ant0</key>
+      <key>ant30</key>
       <value></value>
     </param>
     <param>
-      <key>bw0</key>
+      <key>bw30</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq1</key>
+      <key>center_freq30</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain1</key>
+      <key>norm_gain30</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain30</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant1</key>
+      <key>ant31</key>
       <value></value>
     </param>
     <param>
-      <key>bw1</key>
+      <key>bw31</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq2</key>
+      <key>center_freq31</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain2</key>
+      <key>norm_gain31</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain31</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant2</key>
+      <key>ant3</key>
       <value></value>
     </param>
     <param>
-      <key>bw2</key>
+      <key>bw3</key>
       <value>0</value>
     </param>
     <param>
@@ -1682,15 +1853,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain3</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain3</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant3</key>
+      <key>ant4</key>
       <value></value>
     </param>
     <param>
-      <key>bw3</key>
+      <key>bw4</key>
       <value>0</value>
     </param>
     <param>
@@ -1698,15 +1873,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain4</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain4</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant4</key>
+      <key>ant5</key>
       <value></value>
     </param>
     <param>
-      <key>bw4</key>
+      <key>bw5</key>
       <value>0</value>
     </param>
     <param>
@@ -1714,15 +1893,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain5</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain5</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant5</key>
+      <key>ant6</key>
       <value></value>
     </param>
     <param>
-      <key>bw5</key>
+      <key>bw6</key>
       <value>0</value>
     </param>
     <param>
@@ -1730,15 +1913,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain6</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain6</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant6</key>
+      <key>ant7</key>
       <value></value>
     </param>
     <param>
-      <key>bw6</key>
+      <key>bw7</key>
       <value>0</value>
     </param>
     <param>
@@ -1746,15 +1933,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain7</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain7</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant7</key>
+      <key>ant8</key>
       <value></value>
     </param>
     <param>
-      <key>bw7</key>
+      <key>bw8</key>
       <value>0</value>
     </param>
     <param>
@@ -1762,15 +1953,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain8</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain8</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant8</key>
+      <key>ant9</key>
       <value></value>
     </param>
     <param>
-      <key>bw8</key>
+      <key>bw9</key>
       <value>0</value>
     </param>
     <param>
@@ -1778,15 +1973,214 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain9</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain9</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant9</key>
+      <key>clock_rate</key>
+      <value>0.0</value>
+    </param>
+    <param>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>bw9</key>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>dev_addr</key>
+      <value>address0</value>
+    </param>
+    <param>
+      <key>dev_args</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(949, 140)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>uhd_usrp_sink_0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>fc32</value>
+    </param>
+    <param>
+      <key>len_tag_name</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_source0</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec0</key>
+      <value>A:0</value>
+    </param>
+    <param>
+      <key>time_source0</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_source1</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec1</key>
+      <value></value>
+    </param>
+    <param>
+      <key>time_source1</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_source2</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec2</key>
+      <value></value>
+    </param>
+    <param>
+      <key>time_source2</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_source3</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec3</key>
+      <value></value>
+    </param>
+    <param>
+      <key>time_source3</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_source4</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec4</key>
+      <value></value>
+    </param>
+    <param>
+      <key>time_source4</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_source5</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec5</key>
+      <value></value>
+    </param>
+    <param>
+      <key>time_source5</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_source6</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec6</key>
+      <value></value>
+    </param>
+    <param>
+      <key>time_source6</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_source7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>time_source7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>nchan</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>num_mboards</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>stream_args</key>
+      <value></value>
+    </param>
+    <param>
+      <key>stream_chans</key>
+      <value>[]</value>
+    </param>
+    <param>
+      <key>sync</key>
+      <value></value>
+    </param>
+    <param>
+      <key>otw</key>
+      <value></value>
+    </param>
+  </block>
+  <block>
+    <key>uhd_usrp_source</key>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>ant0</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw0</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq0</key>
+      <value>tun_freq</value>
+    </param>
+    <param>
+      <key>norm_gain0</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain0</key>
+      <value>tun_rx_gain</value>
+    </param>
+    <param>
+      <key>ant10</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw10</key>
       <value>0</value>
     </param>
     <param>
@@ -1794,15 +2188,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain10</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain10</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant10</key>
+      <key>ant11</key>
       <value></value>
     </param>
     <param>
-      <key>bw10</key>
+      <key>bw11</key>
       <value>0</value>
     </param>
     <param>
@@ -1810,15 +2208,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain11</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain11</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant11</key>
+      <key>ant12</key>
       <value></value>
     </param>
     <param>
-      <key>bw11</key>
+      <key>bw12</key>
       <value>0</value>
     </param>
     <param>
@@ -1826,15 +2228,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain12</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain12</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant12</key>
+      <key>ant13</key>
       <value></value>
     </param>
     <param>
-      <key>bw12</key>
+      <key>bw13</key>
       <value>0</value>
     </param>
     <param>
@@ -1842,15 +2248,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain13</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain13</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant13</key>
+      <key>ant14</key>
       <value></value>
     </param>
     <param>
-      <key>bw13</key>
+      <key>bw14</key>
       <value>0</value>
     </param>
     <param>
@@ -1858,15 +2268,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain14</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain14</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant14</key>
+      <key>ant15</key>
       <value></value>
     </param>
     <param>
-      <key>bw14</key>
+      <key>bw15</key>
       <value>0</value>
     </param>
     <param>
@@ -1874,15 +2288,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain15</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain15</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant15</key>
+      <key>ant16</key>
       <value></value>
     </param>
     <param>
-      <key>bw15</key>
+      <key>bw16</key>
       <value>0</value>
     </param>
     <param>
@@ -1890,15 +2308,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain16</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain16</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant16</key>
+      <key>ant17</key>
       <value></value>
     </param>
     <param>
-      <key>bw16</key>
+      <key>bw17</key>
       <value>0</value>
     </param>
     <param>
@@ -1906,15 +2328,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain17</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain17</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant17</key>
+      <key>ant18</key>
       <value></value>
     </param>
     <param>
-      <key>bw17</key>
+      <key>bw18</key>
       <value>0</value>
     </param>
     <param>
@@ -1922,15 +2348,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain18</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain18</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant18</key>
+      <key>ant19</key>
       <value></value>
     </param>
     <param>
-      <key>bw18</key>
+      <key>bw19</key>
       <value>0</value>
     </param>
     <param>
@@ -1938,23 +2368,31 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain19</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain19</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant19</key>
+      <key>ant1</key>
       <value></value>
     </param>
     <param>
-      <key>bw19</key>
+      <key>bw1</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq20</key>
+      <key>center_freq1</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain20</key>
+      <key>norm_gain1</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain1</key>
       <value>0</value>
     </param>
     <param>
@@ -1966,11 +2404,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq21</key>
+      <key>center_freq20</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain21</key>
+      <key>norm_gain20</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain20</key>
       <value>0</value>
     </param>
     <param>
@@ -1982,11 +2424,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq22</key>
+      <key>center_freq21</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain22</key>
+      <key>norm_gain21</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain21</key>
       <value>0</value>
     </param>
     <param>
@@ -1998,11 +2444,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq23</key>
+      <key>center_freq22</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain23</key>
+      <key>norm_gain22</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain22</key>
       <value>0</value>
     </param>
     <param>
@@ -2014,11 +2464,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq24</key>
+      <key>center_freq23</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain24</key>
+      <key>norm_gain23</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain23</key>
       <value>0</value>
     </param>
     <param>
@@ -2030,11 +2484,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq25</key>
+      <key>center_freq24</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain25</key>
+      <key>norm_gain24</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain24</key>
       <value>0</value>
     </param>
     <param>
@@ -2046,11 +2504,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq26</key>
+      <key>center_freq25</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain26</key>
+      <key>norm_gain25</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain25</key>
       <value>0</value>
     </param>
     <param>
@@ -2062,11 +2524,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq27</key>
+      <key>center_freq26</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain27</key>
+      <key>norm_gain26</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain26</key>
       <value>0</value>
     </param>
     <param>
@@ -2078,11 +2544,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq28</key>
+      <key>center_freq27</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain28</key>
+      <key>norm_gain27</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain27</key>
       <value>0</value>
     </param>
     <param>
@@ -2094,11 +2564,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq29</key>
+      <key>center_freq28</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain29</key>
+      <key>norm_gain28</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain28</key>
       <value>0</value>
     </param>
     <param>
@@ -2110,476 +2584,395 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq30</key>
+      <key>center_freq29</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain30</key>
-      <value>0</value>
+      <key>norm_gain29</key>
+      <value>False</value>
     </param>
     <param>
-      <key>ant30</key>
-      <value></value>
+      <key>gain29</key>
+      <value>0</value>
     </param>
     <param>
-      <key>bw30</key>
-      <value>0</value>
+      <key>ant2</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq31</key>
+      <key>bw2</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain31</key>
+      <key>center_freq2</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant31</key>
-      <value></value>
+      <key>norm_gain2</key>
+      <value>False</value>
     </param>
     <param>
-      <key>bw31</key>
+      <key>gain2</key>
       <value>0</value>
     </param>
     <param>
-      <key>len_tag_name</key>
+      <key>ant30</key>
       <value></value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>bw30</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>center_freq30</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(949, 140)</value>
+      <key>norm_gain30</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>gain30</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
-    <param>
-      <key>id</key>
-      <value>tun_freq</value>
-    </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>ant31</key>
+      <value></value>
     </param>
     <param>
-      <key>label</key>
-      <value>UHD Freq (Hz)</value>
+      <key>bw31</key>
+      <value>0</value>
     </param>
     <param>
-      <key>value</key>
-      <value>2.45e9</value>
+      <key>center_freq31</key>
+      <value>0</value>
     </param>
     <param>
-      <key>start</key>
-      <value>2.4e9</value>
+      <key>norm_gain31</key>
+      <value>False</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>2.5e9</value>
+      <key>gain31</key>
+      <value>0</value>
     </param>
     <param>
-      <key>step</key>
-      <value>1</value>
+      <key>ant3</key>
+      <value></value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>bw3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>center_freq3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>norm_gain3</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>3,0,1,4</value>
+      <key>gain3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>ant4</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(80, 431)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
+      <key>bw4</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
-    <param>
-      <key>id</key>
-      <value>tone1</value>
-    </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>Tone 1</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>samp_rate/4</value>
+      <key>center_freq4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>start</key>
-      <value>-samp_rate/2</value>
+      <key>norm_gain4</key>
+      <value>False</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>samp_rate/2</value>
+      <key>gain4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>step</key>
-      <value>1</value>
+      <key>ant5</key>
+      <value></value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>bw5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>center_freq5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>norm_gain5</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>0,0,1,2</value>
+      <key>gain5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>ant6</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(1, 131)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
+      <key>bw6</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>noise_ampl</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>Noise Amplitude</value>
+      <key>center_freq6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0.1</value>
+      <key>norm_gain6</key>
+      <value>False</value>
     </param>
     <param>
-      <key>start</key>
+      <key>gain6</key>
       <value>0</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>step</key>
-      <value>.001</value>
+      <key>ant7</key>
+      <value></value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>bw7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>center_freq7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>norm_gain7</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>1,0,1,2</value>
+      <key>gain7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>ant8</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(0, 283)</value>
+      <key>bw8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>center_freq8</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>tun_tx_gain</value>
+      <key>norm_gain8</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>gain8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label</key>
-      <value>UHD Tx Gain</value>
+      <key>ant9</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
+      <key>bw9</key>
       <value>0</value>
     </param>
     <param>
-      <key>start</key>
+      <key>center_freq9</key>
       <value>0</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>20</value>
-    </param>
-    <param>
-      <key>step</key>
-      <value>1</value>
-    </param>
-    <param>
-      <key>widget</key>
-      <value>counter_slider</value>
-    </param>
-    <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>norm_gain9</key>
+      <value>False</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>gain9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>4,0,1,2</value>
+      <key>clock_rate</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(-1, 573)</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>dev_addr</key>
+      <value>address1</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>tone2</value>
+      <key>dev_args</key>
+      <value>""</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Tone 2</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>samp_rate/5</value>
-    </param>
-    <param>
-      <key>start</key>
-      <value>-samp_rate/2</value>
+      <key>_coordinate</key>
+      <value>(813, 281)</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>samp_rate/2</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>step</key>
-      <value>1</value>
+      <key>id</key>
+      <value>uhd_usrp_source_0</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>clock_source0</key>
+      <value></value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>sd_spec0</key>
+      <value>B:0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>0,2,1,2</value>
+      <key>time_source0</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>clock_source1</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(126, 132)</value>
+      <key>sd_spec1</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>time_source1</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>tone_ampl</value>
+      <key>clock_source2</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>sd_spec2</key>
+      <value></value>
     </param>
     <param>
-      <key>label</key>
-      <value>Tone Amplitude</value>
+      <key>time_source2</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
-      <value>0.15</value>
+      <key>clock_source3</key>
+      <value></value>
     </param>
     <param>
-      <key>start</key>
-      <value>0</value>
+      <key>sd_spec3</key>
+      <value></value>
     </param>
     <param>
-      <key>stop</key>
-      <value>1</value>
+      <key>time_source3</key>
+      <value></value>
     </param>
     <param>
-      <key>step</key>
-      <value>.001</value>
+      <key>clock_source4</key>
+      <value></value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>sd_spec4</key>
+      <value></value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>time_source4</key>
+      <value></value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>clock_source5</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>1,2,1,2</value>
+      <key>sd_spec5</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>time_source5</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(152, 286)</value>
+      <key>clock_source6</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>sd_spec6</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>tun_rx_gain</value>
+      <key>time_source6</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>clock_source7</key>
+      <value></value>
     </param>
     <param>
-      <key>label</key>
-      <value>UHD Rx Gain</value>
+      <key>sd_spec7</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
-      <value>0</value>
+      <key>time_source7</key>
+      <value></value>
     </param>
     <param>
-      <key>start</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>20</value>
+      <key>nchan</key>
+      <value>1</value>
     </param>
     <param>
-      <key>step</key>
+      <key>num_mboards</key>
       <value>1</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>type</key>
+      <value>fc32</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>stream_args</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>4,2,1,2</value>
+      <key>stream_chans</key>
+      <value>[]</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>sync</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(120, 571)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>otw</key>
+      <value></value>
     </param>
   </block>
   <connection>
-    <source_block_id>uhd_usrp_source_0</source_block_id>
-    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
+    <source_block_id>analog_noise_source_x_0</source_block_id>
+    <sink_block_id>blocks_add_xx</sink_block_id>
     <source_key>0</source_key>
-    <sink_key>0</sink_key>
+    <sink_key>2</sink_key>
   </connection>
   <connection>
     <source_block_id>analog_sig_source_x_0</source_block_id>
@@ -2594,14 +2987,14 @@
     <sink_key>1</sink_key>
   </connection>
   <connection>
-    <source_block_id>analog_noise_source_x_0</source_block_id>
-    <sink_block_id>blocks_add_xx</sink_block_id>
+    <source_block_id>blocks_add_xx</source_block_id>
+    <sink_block_id>uhd_usrp_sink_0</sink_block_id>
     <source_key>0</source_key>
-    <sink_key>2</sink_key>
+    <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_add_xx</source_block_id>
-    <sink_block_id>uhd_usrp_sink_0</sink_block_id>
+    <source_block_id>uhd_usrp_source_0</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
diff --git a/gr-uhd/examples/grc/uhd_tx_dpsk.grc b/gr-uhd/examples/grc/uhd_tx_dpsk.grc
index 815d87b742..25d9998f37 100644
--- a/gr-uhd/examples/grc/uhd_tx_dpsk.grc
+++ b/gr-uhd/examples/grc/uhd_tx_dpsk.grc
@@ -1,22 +1,27 @@
-<?xml version='1.0' encoding='ASCII'?>
+<?xml version='1.0' encoding='utf-8'?>
+<?grc format='1' created='3.7.8rc1'?>
 <flow_graph>
   <timestamp>Sat Jul 12 14:07:03 2014</timestamp>
   <block>
     <key>options</key>
     <param>
-      <key>id</key>
-      <value>uhd_tx_dpsk</value>
+      <key>author</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>title</key>
-      <value>UHD TX DPSK</value>
+      <key>window_size</key>
+      <value>1280, 1024</value>
     </param>
     <param>
-      <key>author</key>
+      <key>category</key>
+      <value>Custom</value>
+    </param>
+    <param>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
@@ -24,24 +29,24 @@
       <value></value>
     </param>
     <param>
-      <key>window_size</key>
-      <value>1280, 1024</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>generate_options</key>
-      <value>qt_gui</value>
+      <key>_coordinate</key>
+      <value>(-1, 0)</value>
     </param>
     <param>
-      <key>category</key>
-      <value>Custom</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>run_options</key>
-      <value>prompt</value>
+      <key>generate_options</key>
+      <value>qt_gui</value>
     </param>
     <param>
-      <key>run</key>
-      <value>True</value>
+      <key>id</key>
+      <value>uhd_tx_dpsk</value>
     </param>
     <param>
       <key>max_nouts</key>
@@ -52,410 +57,399 @@
       <value></value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>run_options</key>
+      <value>prompt</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(-1, 0)</value>
+      <key>run</key>
+      <value>True</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>thread_safe_setters</key>
+      <value></value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>UHD TX DPSK</value>
     </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>samps_per_sym</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0.1</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>4</value>
+      <key>_coordinate</key>
+      <value>(-1, 307)</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>gui_hint</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(-1, 84)</value>
-    </param>
-    <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>parameter</key>
     <param>
       <key>id</key>
-      <value>gain</value>
+      <value>ampl</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Amplitude</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Default Gain</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>g</value>
+      <key>step</key>
+      <value>0.01</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>stop</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(589, 0)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>parameter</key>
+    <key>variable</key>
     <param>
-      <key>id</key>
-      <value>freq</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Default Frequency</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>2.45e9</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>eng_float</value>
-    </param>
-    <param>
-      <key>short_id</key>
-      <value>f</value>
-    </param>
-    <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
       <key>_coordinate</key>
-      <value>(433, 1)</value>
+      <value>(-1, 84)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>parameter</key>
     <param>
       <key>id</key>
-      <value>samp_rate</value>
+      <value>samps_per_sym</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>value</key>
+      <value>4</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>label</key>
-      <value>Sample Rate</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>value</key>
-      <value>1e6</value>
+      <value>2.45e9</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>s</value>
+      <key>_coordinate</key>
+      <value>(0, 436)</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>gui_hint</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(304, 0)</value>
-    </param>
-    <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>parameter</key>
     <param>
       <key>id</key>
-      <value>address</value>
+      <value>tun_freq</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>UHD Freq (Hz)</value>
     </param>
     <param>
-      <key>label</key>
-      <value>IP Address</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>value</key>
-      <value>addr=192.168.10.2</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>type</key>
-      <value>string</value>
+      <key>start</key>
+      <value>2.4e9</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>a</value>
+      <key>step</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>stop</key>
+      <value>2.5e9</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(147, 0)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
     <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>ampl</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Amplitude</value>
+      <key>_coordinate</key>
+      <value>(137, 435)</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0.1</value>
+      <key>gui_hint</key>
+      <value></value>
     </param>
     <param>
-      <key>start</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>1</value>
+      <key>id</key>
+      <value>tun_gain</value>
     </param>
     <param>
-      <key>step</key>
-      <value>0.01</value>
+      <key>label</key>
+      <value>UHD Tx Gain</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
       <key>orient</key>
       <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value></value>
+      <key>step</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>stop</key>
+      <value>20</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(-1, 307)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>variable_qtgui_range</key>
+    <key>parameter</key>
     <param>
-      <key>id</key>
-      <value>tun_freq</value>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>UHD Freq (Hz)</value>
+      <key>_coordinate</key>
+      <value>(147, 0)</value>
     </param>
     <param>
-      <key>value</key>
-      <value>2.45e9</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>start</key>
-      <value>2.4e9</value>
+      <key>id</key>
+      <value>address</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>2.5e9</value>
+      <key>label</key>
+      <value>IP Address</value>
     </param>
     <param>
-      <key>step</key>
-      <value>1</value>
+      <key>short_id</key>
+      <value>a</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>type</key>
+      <value>string</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>value</key>
+      <value>addr=192.168.10.2</value>
     </param>
+  </block>
+  <block>
+    <key>analog_random_source_x</key>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(0, 436)</value>
+      <value>(-1, 171)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
       <key>id</key>
-      <value>tun_gain</value>
+      <value>analog_random_source_x_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label</key>
-      <value>UHD Tx Gain</value>
+      <key>max</key>
+      <value>2**8</value>
     </param>
     <param>
-      <key>value</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>start</key>
+      <key>min</key>
       <value>0</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>20</value>
+      <key>num_samps</key>
+      <value>1000</value>
     </param>
     <param>
-      <key>step</key>
-      <value>1</value>
+      <key>type</key>
+      <value>byte</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>repeat</key>
+      <value>True</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_multiply_const_vxx</key>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value></value>
+      <key>const</key>
+      <value>ampl</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(137, 435)</value>
+      <value>(388, 193)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>analog_random_source_x</key>
     <param>
       <key>id</key>
-      <value>analog_random_source_x_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>blocks_multiply_const_vxx_0</value>
     </param>
     <param>
       <key>type</key>
-      <value>byte</value>
+      <value>complex</value>
     </param>
     <param>
-      <key>min</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>max</key>
-      <value>2**8</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>num_samps</key>
-      <value>1000</value>
+      <key>vlen</key>
+      <value>1</value>
     </param>
+  </block>
+  <block>
+    <key>digital_dxpsk_mod</key>
     <param>
-      <key>repeat</key>
-      <value>True</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
@@ -463,389 +457,502 @@
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>excess_bw</key>
+      <value>0.35</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(-1, 171)</value>
+      <value>(190, 171)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>digital_dxpsk_mod</key>
+    <param>
+      <key>mod_code</key>
+      <value>"gray"</value>
+    </param>
     <param>
       <key>id</key>
       <value>digital_dxpsk_mod_0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>log</key>
+      <value>False</value>
     </param>
     <param>
-      <key>type</key>
-      <value>dqpsk</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>samples_per_symbol</key>
-      <value>samps_per_sym</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>excess_bw</key>
-      <value>0.35</value>
+      <key>samples_per_symbol</key>
+      <value>samps_per_sym</value>
     </param>
     <param>
-      <key>mod_code</key>
-      <value>"gray"</value>
+      <key>type</key>
+      <value>dqpsk</value>
     </param>
     <param>
       <key>verbose</key>
       <value>False</value>
     </param>
-    <param>
-      <key>log</key>
-      <value>False</value>
-    </param>
+  </block>
+  <block>
+    <key>parameter</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(190, 171)</value>
+      <value>(433, 1)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>uhd_usrp_sink</key>
     <param>
       <key>id</key>
-      <value>uhd_usrp_sink_0</value>
+      <value>freq</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Default Frequency</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>f</value>
     </param>
     <param>
       <key>type</key>
-      <value>fc32</value>
+      <value>eng_float</value>
     </param>
     <param>
-      <key>otw</key>
+      <key>value</key>
+      <value>2.45e9</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>stream_args</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>stream_chans</key>
-      <value>[]</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>dev_addr</key>
-      <value>address</value>
+      <key>_coordinate</key>
+      <value>(589, 0)</value>
     </param>
     <param>
-      <key>dev_args</key>
-      <value>""</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>sync</key>
-      <value></value>
+      <key>id</key>
+      <value>gain</value>
     </param>
     <param>
-      <key>clock_rate</key>
-      <value>0.0</value>
+      <key>label</key>
+      <value>Default Gain</value>
     </param>
     <param>
-      <key>num_mboards</key>
-      <value>1</value>
+      <key>short_id</key>
+      <value>g</value>
     </param>
     <param>
-      <key>clock_source0</key>
-      <value></value>
+      <key>type</key>
+      <value>eng_float</value>
     </param>
     <param>
-      <key>time_source0</key>
-      <value></value>
+      <key>value</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>sd_spec0</key>
-      <value></value>
+      <key>autoscale</key>
+      <value>True</value>
     </param>
     <param>
-      <key>clock_source1</key>
-      <value></value>
+      <key>average</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>time_source1</key>
-      <value></value>
+      <key>bw</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>sd_spec1</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>clock_source2</key>
-      <value></value>
+      <key>fc</key>
+      <value>tun_freq</value>
     </param>
     <param>
-      <key>time_source2</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>sd_spec2</key>
-      <value></value>
+      <key>ctrlpanel</key>
+      <value>False</value>
     </param>
     <param>
-      <key>clock_source3</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>time_source3</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>sd_spec3</key>
-      <value></value>
+      <key>fftsize</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>clock_source4</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(619, 285)</value>
     </param>
     <param>
-      <key>time_source4</key>
+      <key>gui_hint</key>
       <value></value>
     </param>
     <param>
-      <key>sd_spec4</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>clock_source5</key>
-      <value></value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>time_source5</key>
-      <value></value>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0</value>
     </param>
     <param>
-      <key>sd_spec5</key>
-      <value></value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>clock_source6</key>
-      <value></value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>time_source6</key>
-      <value></value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>sd_spec6</key>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>clock_source7</key>
-      <value></value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>time_source7</key>
-      <value></value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>sd_spec7</key>
+      <key>color10</key>
+      <value>"dark blue"</value>
+    </param>
+    <param>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>nchan</key>
+      <key>width10</key>
       <value>1</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>center_freq0</key>
-      <value>tun_freq</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>gain0</key>
-      <value>tun_gain</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>ant0</key>
+      <key>width2</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>alpha3</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>color3</key>
+      <value>"green"</value>
+    </param>
+    <param>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>bw0</key>
-      <value>0</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq1</key>
-      <value>0</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain1</key>
-      <value>0</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>ant1</key>
+      <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>bw1</key>
-      <value>0</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq2</key>
-      <value>0</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain2</key>
-      <value>0</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>ant2</key>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>bw2</key>
-      <value>0</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq3</key>
-      <value>0</value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain3</key>
-      <value>0</value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>ant3</key>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>bw3</key>
-      <value>0</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq4</key>
-      <value>0</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain4</key>
-      <value>0</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>ant4</key>
+      <key>label7</key>
       <value></value>
     </param>
     <param>
-      <key>bw4</key>
-      <value>0</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq5</key>
-      <value>0</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain5</key>
-      <value>0</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>ant5</key>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>bw5</key>
-      <value>0</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq6</key>
-      <value>0</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain6</key>
-      <value>0</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>ant6</key>
+      <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>bw6</key>
+      <key>width9</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq7</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain7</key>
+      <key>name</key>
+      <value>Transmit Spectrum</value>
+    </param>
+    <param>
+      <key>nconnections</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>showports</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>freqhalf</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant7</key>
+      <key>tr_level</key>
+      <value>0.0</value>
+    </param>
+    <param>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
+    </param>
+    <param>
+      <key>tr_tag</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>update_time</key>
+      <value>0.10</value>
+    </param>
+    <param>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+    </param>
+    <param>
+      <key>ymax</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ymin</key>
+      <value>-140</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>bw7</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq8</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>gain8</key>
+      <key>_coordinate</key>
+      <value>(304, 0)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant8</key>
+      <key>id</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Sample Rate</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>s</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>1e6</value>
+    </param>
+  </block>
+  <block>
+    <key>uhd_usrp_sink</key>
+    <param>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>bw8</key>
-      <value>0</value>
+      <key>ant0</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq9</key>
+      <key>bw0</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain9</key>
-      <value>0</value>
+      <key>center_freq0</key>
+      <value>tun_freq</value>
     </param>
     <param>
-      <key>ant9</key>
+      <key>norm_gain0</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain0</key>
+      <value>tun_gain</value>
+    </param>
+    <param>
+      <key>ant10</key>
       <value></value>
     </param>
     <param>
-      <key>bw9</key>
+      <key>bw10</key>
       <value>0</value>
     </param>
     <param>
@@ -853,15 +960,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain10</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain10</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant10</key>
+      <key>ant11</key>
       <value></value>
     </param>
     <param>
-      <key>bw10</key>
+      <key>bw11</key>
       <value>0</value>
     </param>
     <param>
@@ -869,15 +980,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain11</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain11</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant11</key>
+      <key>ant12</key>
       <value></value>
     </param>
     <param>
-      <key>bw11</key>
+      <key>bw12</key>
       <value>0</value>
     </param>
     <param>
@@ -885,15 +1000,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain12</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain12</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant12</key>
+      <key>ant13</key>
       <value></value>
     </param>
     <param>
-      <key>bw12</key>
+      <key>bw13</key>
       <value>0</value>
     </param>
     <param>
@@ -901,15 +1020,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain13</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain13</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant13</key>
+      <key>ant14</key>
       <value></value>
     </param>
     <param>
-      <key>bw13</key>
+      <key>bw14</key>
       <value>0</value>
     </param>
     <param>
@@ -917,15 +1040,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain14</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain14</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant14</key>
+      <key>ant15</key>
       <value></value>
     </param>
     <param>
-      <key>bw14</key>
+      <key>bw15</key>
       <value>0</value>
     </param>
     <param>
@@ -933,15 +1060,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain15</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain15</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant15</key>
+      <key>ant16</key>
       <value></value>
     </param>
     <param>
-      <key>bw15</key>
+      <key>bw16</key>
       <value>0</value>
     </param>
     <param>
@@ -949,15 +1080,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain16</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain16</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant16</key>
+      <key>ant17</key>
       <value></value>
     </param>
     <param>
-      <key>bw16</key>
+      <key>bw17</key>
       <value>0</value>
     </param>
     <param>
@@ -965,15 +1100,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain17</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain17</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant17</key>
+      <key>ant18</key>
       <value></value>
     </param>
     <param>
-      <key>bw17</key>
+      <key>bw18</key>
       <value>0</value>
     </param>
     <param>
@@ -981,15 +1120,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain18</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain18</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant18</key>
+      <key>ant19</key>
       <value></value>
     </param>
     <param>
-      <key>bw18</key>
+      <key>bw19</key>
       <value>0</value>
     </param>
     <param>
@@ -997,23 +1140,31 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain19</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain19</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant19</key>
+      <key>ant1</key>
       <value></value>
     </param>
     <param>
-      <key>bw19</key>
+      <key>bw1</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq20</key>
+      <key>center_freq1</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain20</key>
+      <key>norm_gain1</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain1</key>
       <value>0</value>
     </param>
     <param>
@@ -1025,11 +1176,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq21</key>
+      <key>center_freq20</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain21</key>
+      <key>norm_gain20</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain20</key>
       <value>0</value>
     </param>
     <param>
@@ -1041,11 +1196,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq22</key>
+      <key>center_freq21</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain22</key>
+      <key>norm_gain21</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain21</key>
       <value>0</value>
     </param>
     <param>
@@ -1057,11 +1216,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq23</key>
+      <key>center_freq22</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain23</key>
+      <key>norm_gain22</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain22</key>
       <value>0</value>
     </param>
     <param>
@@ -1073,11 +1236,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq24</key>
+      <key>center_freq23</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain24</key>
+      <key>norm_gain23</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain23</key>
       <value>0</value>
     </param>
     <param>
@@ -1089,11 +1256,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq25</key>
+      <key>center_freq24</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain25</key>
+      <key>norm_gain24</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain24</key>
       <value>0</value>
     </param>
     <param>
@@ -1105,11 +1276,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq26</key>
+      <key>center_freq25</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain26</key>
+      <key>norm_gain25</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain25</key>
       <value>0</value>
     </param>
     <param>
@@ -1121,11 +1296,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq27</key>
+      <key>center_freq26</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain27</key>
+      <key>norm_gain26</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain26</key>
       <value>0</value>
     </param>
     <param>
@@ -1137,11 +1316,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq28</key>
+      <key>center_freq27</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain28</key>
+      <key>norm_gain27</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain27</key>
       <value>0</value>
     </param>
     <param>
@@ -1153,11 +1336,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq29</key>
+      <key>center_freq28</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain29</key>
+      <key>norm_gain28</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain28</key>
       <value>0</value>
     </param>
     <param>
@@ -1169,11 +1356,35 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq30</key>
+      <key>center_freq29</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain30</key>
+      <key>norm_gain29</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain29</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant2</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw2</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq2</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>norm_gain2</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain2</key>
       <value>0</value>
     </param>
     <param>
@@ -1185,11 +1396,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq31</key>
+      <key>center_freq30</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain31</key>
+      <key>norm_gain30</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain30</key>
       <value>0</value>
     </param>
     <param>
@@ -1201,310 +1416,324 @@
       <value>0</value>
     </param>
     <param>
-      <key>len_tag_name</key>
-      <value></value>
+      <key>center_freq31</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>norm_gain31</key>
+      <value>False</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>gain31</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant3</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(617, 163)</value>
+      <key>bw3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>center_freq3</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_multiply_const_vxx</key>
     <param>
-      <key>id</key>
-      <value>blocks_multiply_const_vxx_0</value>
+      <key>norm_gain3</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>gain3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>ant4</key>
+      <value></value>
     </param>
     <param>
-      <key>const</key>
-      <value>ampl</value>
+      <key>bw4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>vlen</key>
-      <value>1</value>
+      <key>center_freq4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>norm_gain4</key>
+      <value>False</value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>gain4</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant5</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>bw5</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>center_freq5</key>
       <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(388, 193)</value>
+      <key>norm_gain5</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>gain5</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_freq_sink_x_0</value>
+      <key>ant6</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>bw6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>center_freq6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>name</key>
-      <value>Transmit Spectrum</value>
+      <key>norm_gain6</key>
+      <value>False</value>
     </param>
     <param>
-      <key>fftsize</key>
-      <value>1024</value>
+      <key>gain6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>wintype</key>
-      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+      <key>ant7</key>
+      <value></value>
     </param>
     <param>
-      <key>fc</key>
-      <value>tun_freq</value>
+      <key>bw7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>bw</key>
-      <value>samp_rate</value>
+      <key>center_freq7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>autoscale</key>
-      <value>True</value>
+      <key>norm_gain7</key>
+      <value>False</value>
     </param>
     <param>
-      <key>average</key>
-      <value>1.0</value>
+      <key>gain7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-140</value>
+      <key>ant8</key>
+      <value></value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>10</value>
+      <key>bw8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>center_freq8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>norm_gain8</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value></value>
+      <key>gain8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label1</key>
+      <key>ant9</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>bw9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>center_freq9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>norm_gain9</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label2</key>
+      <key>gain9</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>clock_rate</key>
+      <value>0.0</value>
+    </param>
+    <param>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>dev_addr</key>
+      <value>address</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>dev_args</key>
+      <value>""</value>
     </param>
     <param>
-      <key>label3</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>_coordinate</key>
+      <value>(617, 163)</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>id</key>
+      <value>uhd_usrp_sink_0</value>
     </param>
     <param>
-      <key>label4</key>
+      <key>type</key>
+      <value>fc32</value>
+    </param>
+    <param>
+      <key>len_tag_name</key>
       <value></value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>clock_source0</key>
+      <value></value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>sd_spec0</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>time_source0</key>
+      <value></value>
     </param>
     <param>
-      <key>label5</key>
+      <key>clock_source1</key>
       <value></value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>sd_spec1</key>
+      <value></value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>time_source1</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>clock_source2</key>
+      <value></value>
     </param>
     <param>
-      <key>label6</key>
+      <key>sd_spec2</key>
       <value></value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>time_source2</key>
+      <value></value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>clock_source3</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>sd_spec3</key>
+      <value></value>
     </param>
     <param>
-      <key>label7</key>
+      <key>time_source3</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>clock_source4</key>
+      <value></value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>sd_spec4</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>time_source4</key>
+      <value></value>
     </param>
     <param>
-      <key>label8</key>
+      <key>clock_source5</key>
       <value></value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>sd_spec5</key>
+      <value></value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>time_source5</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>clock_source6</key>
+      <value></value>
     </param>
     <param>
-      <key>label9</key>
+      <key>sd_spec6</key>
       <value></value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>time_source6</key>
+      <value></value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>clock_source7</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>sd_spec7</key>
+      <value></value>
     </param>
     <param>
-      <key>label10</key>
+      <key>time_source7</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
+      <key>nchan</key>
       <value>1</value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"dark blue"</value>
+      <key>num_mboards</key>
+      <value>1</value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>stream_args</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>stream_chans</key>
+      <value>[]</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(619, 285)</value>
+      <key>sync</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>otw</key>
+      <value></value>
     </param>
   </block>
   <connection>
@@ -1515,19 +1744,19 @@
   </connection>
   <connection>
     <source_block_id>blocks_multiply_const_vxx_0</source_block_id>
-    <sink_block_id>uhd_usrp_sink_0</sink_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_dxpsk_mod_0</source_block_id>
-    <sink_block_id>blocks_multiply_const_vxx_0</sink_block_id>
+    <source_block_id>blocks_multiply_const_vxx_0</source_block_id>
+    <sink_block_id>uhd_usrp_sink_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_multiply_const_vxx_0</source_block_id>
-    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
+    <source_block_id>digital_dxpsk_mod_0</source_block_id>
+    <sink_block_id>blocks_multiply_const_vxx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
diff --git a/gr-uhd/examples/grc/uhd_wbfm_receive.grc b/gr-uhd/examples/grc/uhd_wbfm_receive.grc
index 153dbd94f3..8c90bcb1f3 100644
--- a/gr-uhd/examples/grc/uhd_wbfm_receive.grc
+++ b/gr-uhd/examples/grc/uhd_wbfm_receive.grc
@@ -1,39 +1,60 @@
-<?xml version='1.0' encoding='ASCII'?>
+<?xml version='1.0' encoding='utf-8'?>
+<?grc format='1' created='3.7.8rc1'?>
 <flow_graph>
   <timestamp>Sat Jul 12 14:40:24 2014</timestamp>
   <block>
     <key>options</key>
     <param>
-      <key>id</key>
-      <value>uhd_wbfm_receive</value>
+      <key>author</key>
+      <value>Example</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>title</key>
-      <value>UHD WBFM Receive</value>
+      <key>window_size</key>
+      <value>1280, 1024</value>
     </param>
     <param>
-      <key>author</key>
-      <value>Example</value>
+      <key>category</key>
+      <value>Custom</value>
+    </param>
+    <param>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
       <key>description</key>
       <value>WBFM Receive</value>
     </param>
     <param>
-      <key>window_size</key>
-      <value>1280, 1024</value>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(-2, 0)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
       <key>generate_options</key>
       <value>qt_gui</value>
     </param>
     <param>
-      <key>category</key>
-      <value>Custom</value>
+      <key>id</key>
+      <value>uhd_wbfm_receive</value>
+    </param>
+    <param>
+      <key>max_nouts</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>realtime_scheduling</key>
+      <value></value>
     </param>
     <param>
       <key>run_options</key>
@@ -44,223 +65,338 @@
       <value>True</value>
     </param>
     <param>
-      <key>max_nouts</key>
-      <value>0</value>
+      <key>thread_safe_setters</key>
+      <value></value>
     </param>
     <param>
-      <key>realtime_scheduling</key>
-      <value></value>
+      <key>title</key>
+      <value>UHD WBFM Receive</value>
     </param>
+  </block>
+  <block>
+    <key>variable</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(-2, 0)</value>
+      <value>(607, 192)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable</key>
     <param>
       <key>id</key>
       <value>audio_decim</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
       <key>value</key>
       <value>10</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>value</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(607, 192)</value>
+      <value>(253, 277)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>0,2,1,2</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>parameter</key>
     <param>
       <key>id</key>
-      <value>address</value>
+      <value>fine</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Fine Freq (MHz)</value>
     </param>
     <param>
-      <key>label</key>
-      <value>IP Address</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>value</key>
-      <value>addr=192.168.10.2</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>type</key>
-      <value>string</value>
+      <key>start</key>
+      <value>-.1</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>a</value>
+      <key>step</key>
+      <value>.01</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>stop</key>
+      <value>.1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(162, 0)</value>
+      <key>rangeType</key>
+      <value>float</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>parameter</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>samp_rate</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>freq/1e6</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
+      <key>_coordinate</key>
+      <value>(6, 276)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>0,0,1,2</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>tun_freq</value>
+    </param>
+    <param>
       <key>label</key>
-      <value>Sample Rate</value>
+      <value>UHD Freq (MHz)</value>
     </param>
     <param>
-      <key>value</key>
-      <value>400e3</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>s</value>
+      <key>start</key>
+      <value>87.9</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>step</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(315, 0)</value>
+      <key>stop</key>
+      <value>108.1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>rangeType</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
   </block>
   <block>
-    <key>parameter</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>gain</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>10</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Default Gain</value>
+      <key>_coordinate</key>
+      <value>(141, 275)</value>
     </param>
     <param>
-      <key>value</key>
+      <key>gui_hint</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>id</key>
+      <value>tun_gain</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>g</value>
+      <key>label</key>
+      <value>UHD Gain</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(594, 0)</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>start</key>
       <value>0</value>
     </param>
+    <param>
+      <key>step</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>stop</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>rangeType</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>widget</key>
+      <value>counter_slider</value>
+    </param>
   </block>
   <block>
-    <key>parameter</key>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>audio_output</value>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>1</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
+      <key>_coordinate</key>
+      <value>(802, 188)</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>1, 0, 1, 4</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>id</key>
+      <value>volume</value>
+    </param>
+    <param>
       <key>label</key>
-      <value>Audio Output Device</value>
+      <value>Volume</value>
     </param>
     <param>
-      <key>value</key>
-      <value></value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>type</key>
-      <value>string</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>O</value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
+      <key>step</key>
+      <value>0.1</value>
+    </param>
+    <param>
+      <key>stop</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>rangeType</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>widget</key>
+      <value>counter_slider</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(732, 0)</value>
+      <value>(162, 0)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>analog_wfm_rcv</key>
     <param>
       <key>id</key>
-      <value>analog_wfm_rcv</value>
+      <value>address</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>IP Address</value>
     </param>
     <param>
-      <key>quad_rate</key>
-      <value>samp_rate</value>
+      <key>short_id</key>
+      <value>a</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>string</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>addr=192.168.10.2</value>
     </param>
+  </block>
+  <block>
+    <key>analog_wfm_rcv</key>
     <param>
       <key>audio_decimation</key>
       <value>audio_decim</value>
@@ -270,16 +406,16 @@
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
@@ -289,653 +425,687 @@
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>audio_sink</key>
     <param>
       <key>id</key>
-      <value>audio_sink</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>samp_rate</key>
-      <value>int(samp_rate/audio_decim)</value>
+      <value>analog_wfm_rcv</value>
     </param>
     <param>
-      <key>device_name</key>
-      <value>audio_output</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ok_to_block</key>
-      <value>True</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>num_inputs</key>
-      <value>1</value>
+      <key>quad_rate</key>
+      <value>samp_rate</value>
     </param>
+  </block>
+  <block>
+    <key>parameter</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(995, 135)</value>
+      <value>(732, 0)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_multiply_const_vxx</key>
     <param>
       <key>id</key>
-      <value>blocks_multiply_const_vxx</value>
+      <value>audio_output</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Audio Output Device</value>
     </param>
     <param>
-      <key>type</key>
-      <value>float</value>
+      <key>short_id</key>
+      <value>O</value>
     </param>
     <param>
-      <key>const</key>
-      <value>volume</value>
+      <key>type</key>
+      <value>string</value>
     </param>
     <param>
-      <key>vlen</key>
-      <value>1</value>
+      <key>value</key>
+      <value></value>
     </param>
+  </block>
+  <block>
+    <key>audio_sink</key>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
+      <key>comment</key>
+      <value></value>
+    </param>
+    <param>
       <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>device_name</key>
+      <value>audio_output</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(808, 135)</value>
+      <value>(995, 135)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>low_pass_filter</key>
     <param>
       <key>id</key>
-      <value>low_pass_filter_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <value>audio_sink</value>
     </param>
     <param>
-      <key>type</key>
-      <value>fir_filter_ccf</value>
+      <key>num_inputs</key>
+      <value>1</value>
     </param>
     <param>
-      <key>decim</key>
-      <value>1</value>
+      <key>ok_to_block</key>
+      <value>True</value>
     </param>
     <param>
-      <key>interp</key>
-      <value>1</value>
+      <key>samp_rate</key>
+      <value>int(samp_rate/audio_decim)</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_multiply_const_vxx</key>
     <param>
-      <key>gain</key>
-      <value>1</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>cutoff_freq</key>
-      <value>115e3</value>
+      <key>const</key>
+      <value>volume</value>
     </param>
     <param>
-      <key>width</key>
-      <value>30e3</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>win</key>
-      <value>firdes.WIN_HANN</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>beta</key>
-      <value>6.76</value>
+      <key>_coordinate</key>
+      <value>(808, 135)</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>affinity</key>
-      <value></value>
+      <key>id</key>
+      <value>blocks_multiply_const_vxx</value>
     </param>
     <param>
-      <key>minoutbuf</key>
-      <value>0</value>
+      <key>type</key>
+      <value>float</value>
     </param>
     <param>
       <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(261, 116)</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>vlen</key>
+      <value>1</value>
     </param>
   </block>
   <block>
-    <key>variable_qtgui_range</key>
+    <key>parameter</key>
     <param>
-      <key>id</key>
-      <value>volume</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>label</key>
-      <value>Volume</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>1</value>
+      <key>_coordinate</key>
+      <value>(442, 0)</value>
     </param>
     <param>
-      <key>start</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>10</value>
+      <key>id</key>
+      <value>freq</value>
     </param>
     <param>
-      <key>step</key>
-      <value>0.1</value>
+      <key>label</key>
+      <value>Default Frequency</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>short_id</key>
+      <value>f</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>type</key>
+      <value>eng_float</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>value</key>
+      <value>93.3e6</value>
     </param>
+  </block>
+  <block>
+    <key>parameter</key>
     <param>
-      <key>gui_hint</key>
-      <value>1, 0, 1, 4</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(802, 188)</value>
+      <value>(594, 0)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
       <key>id</key>
-      <value>fine</value>
+      <value>gain</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label</key>
+      <value>Default Gain</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Fine Freq (MHz)</value>
+      <key>short_id</key>
+      <value>g</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
     </param>
     <param>
       <key>value</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>low_pass_filter</key>
     <param>
-      <key>start</key>
-      <value>-.1</value>
+      <key>beta</key>
+      <value>6.76</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>.1</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>step</key>
-      <value>.01</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>cutoff_freq</key>
+      <value>115e3</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>decim</key>
+      <value>1</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>0,2,1,2</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
+      <key>type</key>
+      <value>fir_filter_ccf</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(253, 277)</value>
+      <value>(261, 116)</value>
     </param>
     <param>
       <key>_rotation</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>tun_gain</value>
+      <key>gain</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>id</key>
+      <value>low_pass_filter_0</value>
     </param>
     <param>
-      <key>label</key>
-      <value>UHD Gain</value>
+      <key>interp</key>
+      <value>1</value>
     </param>
     <param>
-      <key>value</key>
-      <value>10</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>start</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>20</value>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>step</key>
-      <value>1</value>
+      <key>width</key>
+      <value>30e3</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>win</key>
+      <value>firdes.WIN_HANN</value>
     </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>average</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value></value>
+      <key>bw</key>
+      <value>samp_rate</value>
     </param>
     <param>
       <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(141, 275)</value>
+      <key>fc</key>
+      <value>(tun_freq+fine)*1e6</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>uhd_usrp_source</key>
     <param>
-      <key>id</key>
-      <value>uhd_usrp_source_0</value>
+      <key>ctrlpanel</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>fc32</value>
+      <key>fftsize</key>
+      <value>512</value>
     </param>
     <param>
-      <key>otw</key>
-      <value></value>
+      <key>_coordinate</key>
+      <value>(598, 272)</value>
     </param>
     <param>
-      <key>stream_args</key>
-      <value></value>
+      <key>gui_hint</key>
+      <value>2,0,2,4</value>
     </param>
     <param>
-      <key>stream_chans</key>
-      <value>[]</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>dev_addr</key>
-      <value>address</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>dev_args</key>
-      <value>""</value>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_0</value>
     </param>
     <param>
-      <key>sync</key>
-      <value></value>
+      <key>legend</key>
+      <value>False</value>
     </param>
     <param>
-      <key>clock_rate</key>
-      <value>0.0</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>num_mboards</key>
-      <value>1</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>clock_source0</key>
+      <key>label1</key>
       <value></value>
     </param>
     <param>
-      <key>time_source0</key>
-      <value></value>
+      <key>width1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>sd_spec0</key>
-      <value></value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>clock_source1</key>
-      <value></value>
+      <key>color10</key>
+      <value>"dark blue"</value>
     </param>
     <param>
-      <key>time_source1</key>
+      <key>label10</key>
       <value></value>
     </param>
     <param>
-      <key>sd_spec1</key>
-      <value></value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>clock_source2</key>
-      <value></value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>time_source2</key>
-      <value></value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>sd_spec2</key>
+      <key>label2</key>
       <value></value>
     </param>
     <param>
-      <key>clock_source3</key>
-      <value></value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>time_source3</key>
-      <value></value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>sd_spec3</key>
-      <value></value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>clock_source4</key>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>time_source4</key>
-      <value></value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>sd_spec4</key>
-      <value></value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>clock_source5</key>
-      <value></value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>time_source5</key>
+      <key>label4</key>
       <value></value>
     </param>
     <param>
-      <key>sd_spec5</key>
-      <value></value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>clock_source6</key>
-      <value></value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>time_source6</key>
-      <value></value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>sd_spec6</key>
+      <key>label5</key>
       <value></value>
     </param>
     <param>
-      <key>clock_source7</key>
-      <value></value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>time_source7</key>
-      <value></value>
+      <key>alpha6</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>sd_spec7</key>
-      <value></value>
+      <key>color6</key>
+      <value>"magenta"</value>
     </param>
     <param>
-      <key>nchan</key>
-      <value>1</value>
+      <key>label6</key>
+      <value></value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq0</key>
-      <value>(tun_freq+fine)*1e6</value>
+      <key>alpha7</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain0</key>
-      <value>tun_gain</value>
+      <key>color7</key>
+      <value>"yellow"</value>
     </param>
     <param>
-      <key>ant0</key>
+      <key>label7</key>
       <value></value>
     </param>
     <param>
-      <key>bw0</key>
-      <value>0</value>
+      <key>width7</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq1</key>
-      <value>0</value>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain1</key>
-      <value>0</value>
+      <key>color8</key>
+      <value>"dark red"</value>
     </param>
     <param>
-      <key>ant1</key>
+      <key>label8</key>
       <value></value>
     </param>
     <param>
-      <key>bw1</key>
-      <value>0</value>
+      <key>width8</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq2</key>
-      <value>0</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>gain2</key>
-      <value>0</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>ant2</key>
+      <key>label9</key>
       <value></value>
     </param>
     <param>
-      <key>bw2</key>
-      <value>0</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq3</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain3</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant3</key>
+      <key>name</key>
       <value></value>
     </param>
     <param>
-      <key>bw3</key>
-      <value>0</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>center_freq4</key>
-      <value>0</value>
+      <key>showports</key>
+      <value>True</value>
     </param>
     <param>
-      <key>gain4</key>
+      <key>freqhalf</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>tr_chan</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant4</key>
-      <value></value>
+      <key>tr_level</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>bw4</key>
-      <value>0</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>center_freq5</key>
-      <value>0</value>
+      <key>tr_tag</key>
+      <value>""</value>
     </param>
     <param>
-      <key>gain5</key>
-      <value>0</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>ant5</key>
-      <value></value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>bw5</key>
-      <value>0</value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
     </param>
     <param>
-      <key>center_freq6</key>
-      <value>0</value>
+      <key>ymax</key>
+      <value>10</value>
     </param>
     <param>
-      <key>gain6</key>
-      <value>0</value>
+      <key>ymin</key>
+      <value>-140</value>
     </param>
+  </block>
+  <block>
+    <key>parameter</key>
     <param>
-      <key>ant6</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>bw6</key>
-      <value>0</value>
+      <key>comment</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq7</key>
-      <value>0</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>gain7</key>
+      <key>_coordinate</key>
+      <value>(315, 0)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant7</key>
-      <value></value>
+      <key>id</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>bw7</key>
-      <value>0</value>
+      <key>label</key>
+      <value>Sample Rate</value>
     </param>
     <param>
-      <key>center_freq8</key>
-      <value>0</value>
+      <key>short_id</key>
+      <value>s</value>
     </param>
     <param>
-      <key>gain8</key>
-      <value>0</value>
+      <key>type</key>
+      <value>eng_float</value>
     </param>
     <param>
-      <key>ant8</key>
+      <key>value</key>
+      <value>400e3</value>
+    </param>
+  </block>
+  <block>
+    <key>uhd_usrp_source</key>
+    <param>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>bw8</key>
-      <value>0</value>
+      <key>ant0</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq9</key>
+      <key>bw0</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain9</key>
-      <value>0</value>
+      <key>center_freq0</key>
+      <value>(tun_freq+fine)*1e6</value>
     </param>
     <param>
-      <key>ant9</key>
+      <key>norm_gain0</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain0</key>
+      <value>tun_gain</value>
+    </param>
+    <param>
+      <key>ant10</key>
       <value></value>
     </param>
     <param>
-      <key>bw9</key>
+      <key>bw10</key>
       <value>0</value>
     </param>
     <param>
@@ -943,15 +1113,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain10</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain10</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant10</key>
+      <key>ant11</key>
       <value></value>
     </param>
     <param>
-      <key>bw10</key>
+      <key>bw11</key>
       <value>0</value>
     </param>
     <param>
@@ -959,15 +1133,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain11</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain11</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant11</key>
+      <key>ant12</key>
       <value></value>
     </param>
     <param>
-      <key>bw11</key>
+      <key>bw12</key>
       <value>0</value>
     </param>
     <param>
@@ -975,15 +1153,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain12</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain12</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant12</key>
+      <key>ant13</key>
       <value></value>
     </param>
     <param>
-      <key>bw12</key>
+      <key>bw13</key>
       <value>0</value>
     </param>
     <param>
@@ -991,15 +1173,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain13</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain13</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant13</key>
+      <key>ant14</key>
       <value></value>
     </param>
     <param>
-      <key>bw13</key>
+      <key>bw14</key>
       <value>0</value>
     </param>
     <param>
@@ -1007,15 +1193,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain14</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain14</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant14</key>
+      <key>ant15</key>
       <value></value>
     </param>
     <param>
-      <key>bw14</key>
+      <key>bw15</key>
       <value>0</value>
     </param>
     <param>
@@ -1023,15 +1213,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain15</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain15</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant15</key>
+      <key>ant16</key>
       <value></value>
     </param>
     <param>
-      <key>bw15</key>
+      <key>bw16</key>
       <value>0</value>
     </param>
     <param>
@@ -1039,15 +1233,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain16</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain16</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant16</key>
+      <key>ant17</key>
       <value></value>
     </param>
     <param>
-      <key>bw16</key>
+      <key>bw17</key>
       <value>0</value>
     </param>
     <param>
@@ -1055,15 +1253,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain17</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain17</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant17</key>
+      <key>ant18</key>
       <value></value>
     </param>
     <param>
-      <key>bw17</key>
+      <key>bw18</key>
       <value>0</value>
     </param>
     <param>
@@ -1071,15 +1273,19 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain18</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain18</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant18</key>
+      <key>ant19</key>
       <value></value>
     </param>
     <param>
-      <key>bw18</key>
+      <key>bw19</key>
       <value>0</value>
     </param>
     <param>
@@ -1087,23 +1293,31 @@
       <value>0</value>
     </param>
     <param>
+      <key>norm_gain19</key>
+      <value>False</value>
+    </param>
+    <param>
       <key>gain19</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant19</key>
+      <key>ant1</key>
       <value></value>
     </param>
     <param>
-      <key>bw19</key>
+      <key>bw1</key>
       <value>0</value>
     </param>
     <param>
-      <key>center_freq20</key>
+      <key>center_freq1</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain20</key>
+      <key>norm_gain1</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain1</key>
       <value>0</value>
     </param>
     <param>
@@ -1115,11 +1329,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq21</key>
+      <key>center_freq20</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain21</key>
+      <key>norm_gain20</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain20</key>
       <value>0</value>
     </param>
     <param>
@@ -1131,11 +1349,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq22</key>
+      <key>center_freq21</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain22</key>
+      <key>norm_gain21</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain21</key>
       <value>0</value>
     </param>
     <param>
@@ -1147,11 +1369,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq23</key>
+      <key>center_freq22</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain23</key>
+      <key>norm_gain22</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain22</key>
       <value>0</value>
     </param>
     <param>
@@ -1163,11 +1389,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq24</key>
+      <key>center_freq23</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain24</key>
+      <key>norm_gain23</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain23</key>
       <value>0</value>
     </param>
     <param>
@@ -1179,11 +1409,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq25</key>
+      <key>center_freq24</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain25</key>
+      <key>norm_gain24</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain24</key>
       <value>0</value>
     </param>
     <param>
@@ -1195,11 +1429,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq26</key>
+      <key>center_freq25</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain26</key>
+      <key>norm_gain25</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain25</key>
       <value>0</value>
     </param>
     <param>
@@ -1211,11 +1449,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq27</key>
+      <key>center_freq26</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain27</key>
+      <key>norm_gain26</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain26</key>
       <value>0</value>
     </param>
     <param>
@@ -1227,11 +1469,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq28</key>
+      <key>center_freq27</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain28</key>
+      <key>norm_gain27</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain27</key>
       <value>0</value>
     </param>
     <param>
@@ -1243,11 +1489,15 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq29</key>
+      <key>center_freq28</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain29</key>
+      <key>norm_gain28</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>gain28</key>
       <value>0</value>
     </param>
     <param>
@@ -1259,408 +1509,399 @@
       <value>0</value>
     </param>
     <param>
-      <key>center_freq30</key>
+      <key>center_freq29</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain30</key>
-      <value>0</value>
+      <key>norm_gain29</key>
+      <value>False</value>
     </param>
     <param>
-      <key>ant30</key>
-      <value></value>
+      <key>gain29</key>
+      <value>0</value>
     </param>
     <param>
-      <key>bw30</key>
-      <value>0</value>
+      <key>ant2</key>
+      <value></value>
     </param>
     <param>
-      <key>center_freq31</key>
+      <key>bw2</key>
       <value>0</value>
     </param>
     <param>
-      <key>gain31</key>
+      <key>center_freq2</key>
       <value>0</value>
     </param>
     <param>
-      <key>ant31</key>
-      <value></value>
+      <key>norm_gain2</key>
+      <value>False</value>
     </param>
     <param>
-      <key>bw31</key>
+      <key>gain2</key>
       <value>0</value>
     </param>
     <param>
-      <key>alias</key>
-      <value></value>
-    </param>
-    <param>
-      <key>affinity</key>
+      <key>ant30</key>
       <value></value>
     </param>
     <param>
-      <key>minoutbuf</key>
+      <key>bw30</key>
       <value>0</value>
     </param>
     <param>
-      <key>maxoutbuf</key>
+      <key>center_freq30</key>
       <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(0, 139)</value>
+      <key>norm_gain30</key>
+      <value>False</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>gain30</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>qtgui_freq_sink_x</key>
     <param>
-      <key>id</key>
-      <value>qtgui_freq_sink_x_0</value>
+      <key>ant31</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>bw31</key>
+      <value>0</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>center_freq31</key>
+      <value>0</value>
     </param>
     <param>
-      <key>name</key>
-      <value>FFT Plot</value>
+      <key>norm_gain31</key>
+      <value>False</value>
     </param>
     <param>
-      <key>fftsize</key>
-      <value>512</value>
+      <key>gain31</key>
+      <value>0</value>
     </param>
     <param>
-      <key>wintype</key>
-      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+      <key>ant3</key>
+      <value></value>
     </param>
     <param>
-      <key>fc</key>
-      <value>(tun_freq+fine)*1e6</value>
+      <key>bw3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>bw</key>
-      <value>samp_rate</value>
+      <key>center_freq3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>autoscale</key>
+      <key>norm_gain3</key>
       <value>False</value>
     </param>
     <param>
-      <key>average</key>
-      <value>1.0</value>
+      <key>gain3</key>
+      <value>0</value>
     </param>
     <param>
-      <key>ymin</key>
-      <value>-140</value>
+      <key>ant4</key>
+      <value></value>
     </param>
     <param>
-      <key>ymax</key>
-      <value>10</value>
+      <key>bw4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>nconnections</key>
-      <value>1</value>
+      <key>center_freq4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>update_time</key>
-      <value>0.10</value>
+      <key>norm_gain4</key>
+      <value>False</value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>2,0,2,4</value>
+      <key>gain4</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label1</key>
+      <key>ant5</key>
       <value></value>
     </param>
     <param>
-      <key>width1</key>
-      <value>1</value>
+      <key>bw5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color1</key>
-      <value>"blue"</value>
+      <key>center_freq5</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha1</key>
-      <value>1.0</value>
+      <key>norm_gain5</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label2</key>
+      <key>gain5</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant6</key>
       <value></value>
     </param>
     <param>
-      <key>width2</key>
-      <value>1</value>
+      <key>bw6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color2</key>
-      <value>"red"</value>
+      <key>center_freq6</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha2</key>
-      <value>1.0</value>
+      <key>norm_gain6</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label3</key>
+      <key>gain6</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant7</key>
       <value></value>
     </param>
     <param>
-      <key>width3</key>
-      <value>1</value>
+      <key>bw7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color3</key>
-      <value>"green"</value>
+      <key>center_freq7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha3</key>
-      <value>1.0</value>
+      <key>norm_gain7</key>
+      <value>False</value>
     </param>
     <param>
-      <key>label4</key>
-      <value></value>
+      <key>gain7</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width4</key>
-      <value>1</value>
+      <key>ant8</key>
+      <value></value>
     </param>
     <param>
-      <key>color4</key>
-      <value>"black"</value>
+      <key>bw8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha4</key>
-      <value>1.0</value>
+      <key>center_freq8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label5</key>
-      <value></value>
+      <key>norm_gain8</key>
+      <value>False</value>
     </param>
     <param>
-      <key>width5</key>
-      <value>1</value>
+      <key>gain8</key>
+      <value>0</value>
     </param>
     <param>
-      <key>color5</key>
-      <value>"cyan"</value>
+      <key>ant9</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha5</key>
-      <value>1.0</value>
+      <key>bw9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>label6</key>
-      <value></value>
+      <key>center_freq9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width6</key>
-      <value>1</value>
+      <key>norm_gain9</key>
+      <value>False</value>
     </param>
     <param>
-      <key>color6</key>
-      <value>"magenta"</value>
+      <key>gain9</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha6</key>
-      <value>1.0</value>
+      <key>clock_rate</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>label7</key>
+      <key>comment</key>
       <value></value>
     </param>
     <param>
-      <key>width7</key>
-      <value>1</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>color7</key>
-      <value>"yellow"</value>
+      <key>dev_addr</key>
+      <value>address</value>
     </param>
     <param>
-      <key>alpha7</key>
-      <value>1.0</value>
+      <key>dev_args</key>
+      <value>""</value>
     </param>
     <param>
-      <key>label8</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>width8</key>
-      <value>1</value>
+      <key>_coordinate</key>
+      <value>(0, 139)</value>
     </param>
     <param>
-      <key>color8</key>
-      <value>"dark red"</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
     <param>
-      <key>alpha8</key>
-      <value>1.0</value>
+      <key>id</key>
+      <value>uhd_usrp_source_0</value>
     </param>
     <param>
-      <key>label9</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>width9</key>
-      <value>1</value>
+      <key>clock_source0</key>
+      <value></value>
     </param>
     <param>
-      <key>color9</key>
-      <value>"dark green"</value>
+      <key>sd_spec0</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha9</key>
-      <value>1.0</value>
+      <key>time_source0</key>
+      <value></value>
     </param>
     <param>
-      <key>label10</key>
+      <key>clock_source1</key>
       <value></value>
     </param>
     <param>
-      <key>width10</key>
-      <value>1</value>
+      <key>sd_spec1</key>
+      <value></value>
     </param>
     <param>
-      <key>color10</key>
-      <value>"dark blue"</value>
+      <key>time_source1</key>
+      <value></value>
     </param>
     <param>
-      <key>alpha10</key>
-      <value>1.0</value>
+      <key>clock_source2</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>sd_spec2</key>
       <value></value>
     </param>
     <param>
-      <key>affinity</key>
+      <key>time_source2</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(598, 272)</value>
+      <key>clock_source3</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>sd_spec3</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>parameter</key>
     <param>
-      <key>id</key>
-      <value>freq</value>
+      <key>time_source3</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>clock_source4</key>
+      <value></value>
     </param>
     <param>
-      <key>label</key>
-      <value>Default Frequency</value>
+      <key>sd_spec4</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
-      <value>93.3e6</value>
+      <key>time_source4</key>
+      <value></value>
     </param>
     <param>
-      <key>type</key>
-      <value>eng_float</value>
+      <key>clock_source5</key>
+      <value></value>
     </param>
     <param>
-      <key>short_id</key>
-      <value>f</value>
+      <key>sd_spec5</key>
+      <value></value>
     </param>
     <param>
-      <key>alias</key>
+      <key>time_source5</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(442, 0)</value>
+      <key>clock_source6</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>sd_spec6</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>variable_qtgui_range</key>
     <param>
-      <key>id</key>
-      <value>tun_freq</value>
+      <key>time_source6</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>clock_source7</key>
+      <value></value>
     </param>
     <param>
-      <key>label</key>
-      <value>UHD Freq (MHz)</value>
+      <key>sd_spec7</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
-      <value>freq/1e6</value>
+      <key>time_source7</key>
+      <value></value>
     </param>
     <param>
-      <key>start</key>
-      <value>87.9</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>stop</key>
-      <value>108.1</value>
+      <key>nchan</key>
+      <value>1</value>
     </param>
     <param>
-      <key>step</key>
+      <key>num_mboards</key>
       <value>1</value>
     </param>
     <param>
-      <key>widget</key>
-      <value>counter_slider</value>
+      <key>type</key>
+      <value>fc32</value>
     </param>
     <param>
-      <key>orient</key>
-      <value>Qt.Horizontal</value>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>min_len</key>
-      <value>200</value>
+      <key>stream_args</key>
+      <value></value>
     </param>
     <param>
-      <key>gui_hint</key>
-      <value>0,0,1,2</value>
+      <key>stream_chans</key>
+      <value>[]</value>
     </param>
     <param>
-      <key>alias</key>
+      <key>sync</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(6, 276)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>otw</key>
+      <value></value>
     </param>
   </block>
   <connection>
-    <source_block_id>low_pass_filter_0</source_block_id>
-    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
+    <source_block_id>analog_wfm_rcv</source_block_id>
+    <sink_block_id>blocks_multiply_const_vxx</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>uhd_usrp_source_0</source_block_id>
-    <sink_block_id>low_pass_filter_0</sink_block_id>
+    <source_block_id>blocks_multiply_const_vxx</source_block_id>
+    <sink_block_id>audio_sink</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
@@ -1671,14 +1912,14 @@
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>analog_wfm_rcv</source_block_id>
-    <sink_block_id>blocks_multiply_const_vxx</sink_block_id>
+    <source_block_id>low_pass_filter_0</source_block_id>
+    <sink_block_id>qtgui_freq_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_multiply_const_vxx</source_block_id>
-    <sink_block_id>audio_sink</sink_block_id>
+    <source_block_id>uhd_usrp_source_0</source_block_id>
+    <sink_block_id>low_pass_filter_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
author	Tom Rondeau <tom@trondeau.com>	2015-08-05 16:31:46 -0400
committer	Tom Rondeau <tom@trondeau.com>	2015-08-05 16:31:46 -0400
commit	fee49faacaa8b5e1492ee5b001b7e732ff8cf259 (patch)
tree	d2a6588ac472c242a67b35bb3967b4b4aad57a1e /gr-uhd/examples/grc
parent	f4b5bcabdde9ec67f1cd689a7abc204a00d6fbf9 (diff)