1 files changed, 864 insertions, 623 deletions
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>