From 58cb65c12c409245e4e22f84d9795021a6153178 Mon Sep 17 00:00:00 2001
From: Martin Braun <martin.braun@ettus.com>
Date: Wed, 9 Jul 2014 16:02:36 +0200
Subject: examples: Ported examples in GNU Radio tree to QT.

---
 gr-digital/examples/demod/digital_freq_lock.grc | 1578 ++++++++++++++++++-----
 1 file changed, 1263 insertions(+), 315 deletions(-)

(limited to 'gr-digital/examples/demod/digital_freq_lock.grc')

diff --git a/gr-digital/examples/demod/digital_freq_lock.grc b/gr-digital/examples/demod/digital_freq_lock.grc
index 399d6a8e01..0b8955df53 100644
--- a/gr-digital/examples/demod/digital_freq_lock.grc
+++ b/gr-digital/examples/demod/digital_freq_lock.grc
@@ -1,6 +1,6 @@
 <?xml version='1.0' encoding='ASCII'?>
 <flow_graph>
-  <timestamp>Tue Jan 15 14:17:18 2013</timestamp>
+  <timestamp>Tue Jul  8 23:23:18 2014</timestamp>
   <block>
     <key>options</key>
     <param>
@@ -29,7 +29,7 @@
     </param>
     <param>
       <key>generate_options</key>
-      <value>wx_gui</value>
+      <value>qt_gui</value>
     </param>
     <param>
       <key>category</key>
@@ -51,6 +51,10 @@
       <key>realtime_scheduling</key>
       <value></value>
     </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
     <param>
       <key>_coordinate</key>
       <value>(-1, 0)</value>
@@ -64,7 +68,7 @@
     <key>variable</key>
     <param>
       <key>id</key>
-      <value>sps</value>
+      <value>samp_rate</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -72,11 +76,15 @@
     </param>
     <param>
       <key>value</key>
-      <value>4</value>
+      <value>32000</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(166, -2)</value>
+      <value>(311, -1)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -97,9 +105,13 @@
       <key>value</key>
       <value>0.35</value>
     </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
     <param>
       <key>_coordinate</key>
-      <value>(231, 0)</value>
+      <value>(223, 0)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -110,7 +122,7 @@
     <key>variable</key>
     <param>
       <key>id</key>
-      <value>samp_rate</value>
+      <value>sps</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -118,11 +130,15 @@
     </param>
     <param>
       <key>value</key>
-      <value>32000</value>
+      <value>4</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(439, -1)</value>
+      <value>(154, 0)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -130,54 +146,62 @@
     </param>
   </block>
   <block>
-    <key>variable_slider</key>
+    <key>digital_psk_mod</key>
     <param>
       <key>id</key>
-      <value>freq_offset</value>
+      <value>digital_psk_mod_0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Frequency Offset</value>
+      <key>constellation_points</key>
+      <value>2</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0</value>
+      <key>mod_code</key>
+      <value>"gray"</value>
     </param>
     <param>
-      <key>min</key>
-      <value>-0.5</value>
+      <key>differential</key>
+      <value>False</value>
     </param>
     <param>
-      <key>max</key>
-      <value>0.5</value>
+      <key>samples_per_symbol</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>num_steps</key>
-      <value>1000</value>
+      <key>excess_bw</key>
+      <value>rolloff</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.SL_HORIZONTAL</value>
+      <key>verbose</key>
+      <value>False</value>
     </param>
     <param>
-      <key>converver</key>
-      <value>float_converter</value>
+      <key>log</key>
+      <value>False</value>
     </param>
     <param>
-      <key>grid_pos</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>notebook</key>
+      <key>affinity</key>
       <value></value>
     </param>
+    <param>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
     <param>
       <key>_coordinate</key>
-      <value>(673, -1)</value>
+      <value>(202, 142)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -185,10 +209,10 @@
     </param>
   </block>
   <block>
-    <key>wxgui_scopesink2</key>
+    <key>analog_random_source_x</key>
     <param>
       <key>id</key>
-      <value>wxgui_scopesink2_0_0</value>
+      <value>analog_random_source_x</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -196,63 +220,102 @@
     </param>
     <param>
       <key>type</key>
-      <value>complex</value>
+      <value>byte</value>
     </param>
     <param>
-      <key>title</key>
-      <value>Frequency Corrected Signal</value>
+      <key>min</key>
+      <value>0</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>max</key>
+      <value>256</value>
+    </param>
+    <param>
+      <key>num_samps</key>
+      <value>10000000</value>
+    </param>
+    <param>
+      <key>repeat</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>v_scale</key>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>v_offset</key>
+      <key>maxoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>t_scale</key>
+      <key>_coordinate</key>
+      <value>(8, 150)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>channels_channel_model</key>
     <param>
-      <key>ac_couple</key>
-      <value>False</value>
+      <key>id</key>
+      <value>channels_channel_model_0</value>
     </param>
     <param>
-      <key>xy_mode</key>
-      <value>False</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>num_inputs</key>
-      <value>1</value>
+      <key>noise_voltage</key>
+      <value>noise_amp</value>
     </param>
     <param>
-      <key>win_size</key>
-      <value></value>
+      <key>freq_offset</key>
+      <value>freq_offset</value>
+    </param>
+    <param>
+      <key>epsilon</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>seed</key>
+      <value>42</value>
+    </param>
+    <param>
+      <key>block_tags</key>
+      <value>False</value>
     </param>
     <param>
-      <key>grid_pos</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>notebook</key>
-      <value>notebook_0,1</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>trig_mode</key>
-      <value>wxgui.TRIG_MODE_AUTO</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>y_axis_label</key>
-      <value>Counts</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(439, 289)</value>
+      <value>(681, 142)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -260,10 +323,10 @@
     </param>
   </block>
   <block>
-    <key>wxgui_fftsink2</key>
+    <key>blocks_throttle</key>
     <param>
       <key>id</key>
-      <value>wxgui_fftsink2_0_0</value>
+      <value>blocks_throttle_0</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -274,76 +337,91 @@
       <value>complex</value>
     </param>
     <param>
-      <key>title</key>
-      <value>Frequency Corrected Signal</value>
+      <key>samples_per_second</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>ignoretag</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>baseband_freq</key>
+      <key>minoutbuf</key>
       <value>0</value>
     </param>
     <param>
-      <key>y_per_div</key>
-      <value>10</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>y_divs</key>
-      <value>10</value>
+      <key>_coordinate</key>
+      <value>(469, 172)</value>
     </param>
     <param>
-      <key>ref_level</key>
-      <value>10</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>digital_fll_band_edge_cc</key>
     <param>
-      <key>ref_scale</key>
-      <value>2.0</value>
+      <key>id</key>
+      <value>digital_fll_band_edge_cc_0</value>
     </param>
     <param>
-      <key>fft_size</key>
-      <value>1024</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>fft_rate</key>
-      <value>30</value>
+      <key>type</key>
+      <value>cc</value>
     </param>
     <param>
-      <key>peak_hold</key>
-      <value>False</value>
+      <key>samps_per_sym</key>
+      <value>sps</value>
     </param>
     <param>
-      <key>average</key>
-      <value>False</value>
+      <key>rolloff</key>
+      <value>rolloff</value>
     </param>
     <param>
-      <key>avg_alpha</key>
-      <value>0</value>
+      <key>filter_size</key>
+      <value>44</value>
     </param>
     <param>
-      <key>win</key>
-      <value>None</value>
+      <key>w</key>
+      <value>freq_bw</value>
     </param>
     <param>
-      <key>win_size</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>grid_pos</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
-      <key>notebook</key>
-      <value>notebook_0,0</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>freqvar</key>
-      <value>None</value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(439, 423)</value>
+      <value>(583, 286)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -351,10 +429,10 @@
     </param>
   </block>
   <block>
-    <key>variable_slider</key>
+    <key>variable_qtgui_range</key>
     <param>
       <key>id</key>
-      <value>freq_bw</value>
+      <value>noise_amp</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -362,43 +440,47 @@
     </param>
     <param>
       <key>label</key>
-      <value>FLL Loop Bandwidth</value>
+      <value>Channel Noise</value>
     </param>
     <param>
       <key>value</key>
       <value>0</value>
     </param>
     <param>
-      <key>min</key>
+      <key>start</key>
       <value>0</value>
     </param>
     <param>
-      <key>max</key>
-      <value>0.1</value>
+      <key>stop</key>
+      <value>1</value>
     </param>
     <param>
-      <key>num_steps</key>
-      <value>1000</value>
+      <key>step</key>
+      <value>0.01</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.SL_HORIZONTAL</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
     <param>
-      <key>converver</key>
-      <value>float_converter</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value></value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>notebook</key>
+      <key>gui_hint</key>
+      <value>0, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(74, 436)</value>
+      <value>(498, 0)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -406,73 +488,58 @@
     </param>
   </block>
   <block>
-    <key>notebook</key>
+    <key>variable_qtgui_range</key>
     <param>
       <key>id</key>
-      <value>notebook_0</value>
+      <value>freq_offset</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.NB_TOP</value>
-    </param>
-    <param>
-      <key>labels</key>
-      <value>['Freq', 'Time']</value>
-    </param>
-    <param>
-      <key>grid_pos</key>
-      <value></value>
-    </param>
-    <param>
-      <key>notebook</key>
-      <value></value>
+      <key>label</key>
+      <value>Frequency Offset</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(108, 568)</value>
+      <key>value</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>start</key>
+      <value>-.5</value>
     </param>
-  </block>
-  <block>
-    <key>digital_fll_band_edge_cc</key>
     <param>
-      <key>id</key>
-      <value>digital_fll_band_edge_cc_0</value>
+      <key>stop</key>
+      <value>.5</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>step</key>
+      <value>0.01</value>
     </param>
     <param>
-      <key>type</key>
-      <value>cc</value>
+      <key>widget</key>
+      <value>counter_slider</value>
     </param>
     <param>
-      <key>samps_per_sym</key>
-      <value>sps</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>rolloff</key>
-      <value>rolloff</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>filter_size</key>
-      <value>44</value>
+      <key>gui_hint</key>
+      <value>1, 0, 1, 1</value>
     </param>
     <param>
-      <key>w</key>
-      <value>freq_bw</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(75, 295)</value>
+      <value>(624, 0)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -480,90 +547,109 @@
     </param>
   </block>
   <block>
-    <key>wxgui_fftsink2</key>
+    <key>qtgui_tab_widget</key>
     <param>
       <key>id</key>
-      <value>wxgui_fftsink2_0</value>
+      <value>notebook</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>num_tabs</key>
+      <value>2</value>
     </param>
     <param>
-      <key>title</key>
-      <value>Signal into Receiver</value>
+      <key>label0</key>
+      <value>Frequency</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>label1</key>
+      <value>Time</value>
     </param>
     <param>
-      <key>baseband_freq</key>
-      <value>0</value>
+      <key>label2</key>
+      <value>Tab 2</value>
     </param>
     <param>
-      <key>y_per_div</key>
-      <value>10</value>
+      <key>label3</key>
+      <value>Tab 3</value>
     </param>
     <param>
-      <key>y_divs</key>
-      <value>10</value>
+      <key>label4</key>
+      <value>Tab 4</value>
     </param>
     <param>
-      <key>ref_level</key>
-      <value>10</value>
+      <key>gui_hint</key>
+      <value>3, 0, 1, 1</value>
     </param>
     <param>
-      <key>ref_scale</key>
-      <value>2.0</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>fft_size</key>
-      <value>1024</value>
+      <key>_coordinate</key>
+      <value>(0, 69)</value>
     </param>
     <param>
-      <key>fft_rate</key>
-      <value>30</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
     <param>
-      <key>peak_hold</key>
-      <value>False</value>
+      <key>id</key>
+      <value>freq_bw</value>
     </param>
     <param>
-      <key>average</key>
-      <value>False</value>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value></value>
     </param>
     <param>
-      <key>avg_alpha</key>
+      <key>value</key>
       <value>0</value>
     </param>
     <param>
-      <key>win</key>
-      <value>None</value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>win_size</key>
-      <value></value>
+      <key>stop</key>
+      <value>0.1</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value></value>
+      <key>step</key>
+      <value>0.001</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>
     </param>
     <param>
-      <key>notebook</key>
-      <value>notebook_0,0</value>
+      <key>gui_hint</key>
+      <value>2, 0, 1, 1</value>
     </param>
     <param>
-      <key>freqvar</key>
-      <value>None</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(918, 107)</value>
+      <value>(399, 290)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -571,10 +657,10 @@
     </param>
   </block>
   <block>
-    <key>wxgui_scopesink2</key>
+    <key>qtgui_freq_sink_x</key>
     <param>
       <key>id</key>
-      <value>wxgui_scopesink2_0</value>
+      <value>qtgui_freq_sink_x_0</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -585,107 +671,798 @@
       <value>complex</value>
     </param>
     <param>
-      <key>title</key>
+      <key>name</key>
       <value>Signal into Receiver</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>fftsize</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>v_scale</key>
-      <value>0</value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
     </param>
     <param>
-      <key>v_offset</key>
+      <key>fc</key>
       <value>0</value>
     </param>
     <param>
-      <key>t_scale</key>
-      <value>0</value>
+      <key>bw</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>ac_couple</key>
+      <key>autoscale</key>
       <value>False</value>
     </param>
     <param>
-      <key>xy_mode</key>
-      <value>False</value>
+      <key>average</key>
+      <value>0.1</value>
     </param>
     <param>
-      <key>num_inputs</key>
-      <value>1</value>
+      <key>ymin</key>
+      <value>-120</value>
     </param>
     <param>
-      <key>win_size</key>
-      <value></value>
+      <key>ymax</key>
+      <value>-20</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value></value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>notebook</key>
-      <value>notebook_0,1</value>
+      <key>update_time</key>
+      <value>0.10</value>
     </param>
     <param>
-      <key>trig_mode</key>
-      <value>wxgui.TRIG_MODE_AUTO</value>
+      <key>gui_hint</key>
+      <value>notebook@0</value>
     </param>
     <param>
-      <key>y_axis_label</key>
-      <value>Counts</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(918, 0)</value>
+      <key>width1</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>alpha1</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label2</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>
+      <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>
+      <value></value>
+    </param>
+    <param>
+      <key>width4</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color4</key>
+      <value>"black"</value>
+    </param>
+    <param>
+      <key>alpha4</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label5</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width5</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color5</key>
+      <value>"cyan"</value>
+    </param>
+    <param>
+      <key>alpha5</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label6</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width6</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color6</key>
+      <value>"magenta"</value>
+    </param>
+    <param>
+      <key>alpha6</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width7</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color7</key>
+      <value>"yellow"</value>
+    </param>
+    <param>
+      <key>alpha7</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label8</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width8</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color8</key>
+      <value>"dark red"</value>
+    </param>
+    <param>
+      <key>alpha8</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label9</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width9</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color9</key>
+      <value>"dark green"</value>
+    </param>
+    <param>
+      <key>alpha9</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label10</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>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(931, 200)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>qtgui_freq_sink_x</key>
+    <param>
+      <key>id</key>
+      <value>qtgui_freq_sink_x_1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>name</key>
+      <value>Frequency Corrected Signal</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>0</value>
+    </param>
+    <param>
+      <key>bw</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>autoscale</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>average</key>
+      <value>0.1</value>
+    </param>
+    <param>
+      <key>ymin</key>
+      <value>-120</value>
+    </param>
+    <param>
+      <key>ymax</key>
+      <value>-20</value>
+    </param>
+    <param>
+      <key>nconnections</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>update_time</key>
+      <value>0.10</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>notebook@0</value>
+    </param>
+    <param>
+      <key>label1</key>
+      <value></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>
+    </param>
+    <param>
+      <key>label2</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>
+      <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>
+      <value></value>
+    </param>
+    <param>
+      <key>width4</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color4</key>
+      <value>"black"</value>
+    </param>
+    <param>
+      <key>alpha4</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label5</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width5</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color5</key>
+      <value>"cyan"</value>
+    </param>
+    <param>
+      <key>alpha5</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label6</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width6</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color6</key>
+      <value>"magenta"</value>
+    </param>
+    <param>
+      <key>alpha6</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width7</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color7</key>
+      <value>"yellow"</value>
+    </param>
+    <param>
+      <key>alpha7</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label8</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width8</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color8</key>
+      <value>"dark red"</value>
+    </param>
+    <param>
+      <key>alpha8</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label9</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width9</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color9</key>
+      <value>"dark green"</value>
+    </param>
+    <param>
+      <key>alpha9</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label10</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>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(929, 436)</value>
+    </param>
+    <param>
+      <key>_rotation</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>
+    </param>
+    <param>
+      <key>name</key>
+      <value>Frequency Corrected Signal</value>
+    </param>
+    <param>
+      <key>size</key>
+      <value>1024</value>
+    </param>
+    <param>
+      <key>srate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>autoscale</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>ymin</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>ymax</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>nconnections</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>update_time</key>
+      <value>0.10</value>
+    </param>
+    <param>
+      <key>entags</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>notebook@1</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>
+    </param>
+    <param>
+      <key>tr_delay</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>tr_chan</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>tr_tag</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>label1</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width1</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>style1</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>marker1</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>alpha1</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label2</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>
+    </param>
+    <param>
+      <key>alpha2</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label3</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width3</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color3</key>
+      <value>"green"</value>
+    </param>
+    <param>
+      <key>style3</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>marker3</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>alpha3</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label4</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width4</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color4</key>
+      <value>"black"</value>
+    </param>
+    <param>
+      <key>style4</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>marker4</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>alpha4</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label5</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width5</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color5</key>
+      <value>"cyan"</value>
+    </param>
+    <param>
+      <key>style5</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>marker5</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>alpha5</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label6</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width6</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color6</key>
+      <value>"magenta"</value>
+    </param>
+    <param>
+      <key>style6</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>marker6</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>alpha6</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width7</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color7</key>
+      <value>"yellow"</value>
+    </param>
+    <param>
+      <key>style7</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>marker7</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>alpha7</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label8</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width8</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color8</key>
+      <value>"dark red"</value>
+    </param>
+    <param>
+      <key>style8</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>marker8</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>alpha8</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>label9</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>digital_psk_mod</key>
     <param>
-      <key>id</key>
-      <value>digital_psk_mod_0</value>
+      <key>width9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>color9</key>
+      <value>"dark green"</value>
     </param>
     <param>
-      <key>constellation_points</key>
-      <value>2</value>
+      <key>style9</key>
+      <value>1</value>
     </param>
     <param>
-      <key>mod_code</key>
-      <value>"gray"</value>
+      <key>marker9</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>differential</key>
-      <value>False</value>
+      <key>alpha9</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>samples_per_symbol</key>
-      <value>sps</value>
+      <key>label10</key>
+      <value></value>
     </param>
     <param>
-      <key>excess_bw</key>
-      <value>rolloff</value>
+      <key>width10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>verbose</key>
-      <value>False</value>
+      <key>color10</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>log</key>
-      <value>False</value>
+      <key>style10</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>marker10</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>alpha10</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(202, 142)</value>
+      <value>(930, 324)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -693,10 +1470,10 @@
     </param>
   </block>
   <block>
-    <key>analog_random_source_x</key>
+    <key>qtgui_time_sink_x</key>
     <param>
       <key>id</key>
-      <value>analog_random_source_x</value>
+      <value>qtgui_time_sink_x_0_0</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -704,152 +1481,323 @@
     </param>
     <param>
       <key>type</key>
-      <value>byte</value>
+      <value>complex</value>
     </param>
     <param>
-      <key>min</key>
-      <value>0</value>
+      <key>name</key>
+      <value>Signal into Receiver</value>
     </param>
     <param>
-      <key>max</key>
-      <value>256</value>
+      <key>size</key>
+      <value>1024</value>
     </param>
     <param>
-      <key>num_samps</key>
-      <value>10000000</value>
+      <key>srate</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>repeat</key>
+      <key>autoscale</key>
       <value>True</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(8, 150)</value>
+      <key>ymin</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>ymax</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>channels_channel_model</key>
     <param>
-      <key>id</key>
-      <value>channels_channel_model_0</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
+      <key>update_time</key>
+      <value>0.10</value>
+    </param>
+    <param>
+      <key>entags</key>
       <value>True</value>
     </param>
     <param>
-      <key>noise_voltage</key>
-      <value>noise_amp</value>
+      <key>gui_hint</key>
+      <value>notebook@1</value>
     </param>
     <param>
-      <key>freq_offset</key>
-      <value>freq_offset</value>
+      <key>tr_mode</key>
+      <value>qtgui.TRIG_MODE_FREE</value>
     </param>
     <param>
-      <key>epsilon</key>
+      <key>tr_slope</key>
+      <value>qtgui.TRIG_SLOPE_POS</value>
+    </param>
+    <param>
+      <key>tr_level</key>
+      <value>0.0</value>
+    </param>
+    <param>
+      <key>tr_delay</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>tr_chan</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>tr_tag</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>label1</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width1</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color1</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>style1</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>marker1</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>alpha1</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>taps</key>
+      <key>label2</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>
+    </param>
+    <param>
+      <key>alpha2</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>seed</key>
-      <value>42</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(681, 142)</value>
+      <key>width3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_throttle</key>
     <param>
-      <key>id</key>
-      <value>blocks_throttle_0</value>
+      <key>style3</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>marker3</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>samples_per_second</key>
-      <value>samp_rate</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>vlen</key>
+      <key>width4</key>
       <value>1</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(487, 174)</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>style4</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>variable_slider</key>
     <param>
-      <key>id</key>
-      <value>noise_amp</value>
+      <key>marker4</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Channel Noise</value>
+      <key>label5</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
-      <value>0</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>min</key>
-      <value>0</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>max</key>
+      <key>style5</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>marker5</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>alpha5</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label6</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width6</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color6</key>
+      <value>"magenta"</value>
+    </param>
+    <param>
+      <key>style6</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>marker6</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>alpha6</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width7</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color7</key>
+      <value>"yellow"</value>
+    </param>
+    <param>
+      <key>style7</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>marker7</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>alpha7</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label8</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width8</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color8</key>
+      <value>"dark red"</value>
+    </param>
+    <param>
+      <key>style8</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>marker8</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>alpha8</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>label9</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>
+    </param>
+    <param>
+      <key>marker9</key>
+      <value>-1</value>
+    </param>
+    <param>
+      <key>alpha9</key>
       <value>1.0</value>
     </param>
     <param>
-      <key>num_steps</key>
-      <value>1000</value>
+      <key>label10</key>
+      <value></value>
+    </param>
+    <param>
+      <key>width10</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>color10</key>
+      <value>"blue"</value>
+    </param>
+    <param>
+      <key>style10</key>
+      <value>1</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.SL_HORIZONTAL</value>
+      <key>marker10</key>
+      <value>-1</value>
     </param>
     <param>
-      <key>converver</key>
-      <value>float_converter</value>
+      <key>alpha10</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>grid_pos</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>notebook</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(549, 0)</value>
+      <value>(928, 41)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -857,50 +1805,50 @@
     </param>
   </block>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>wxgui_scopesink2_0</sink_block_id>
+    <source_block_id>analog_random_source_x</source_block_id>
+    <sink_block_id>digital_psk_mod_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>channels_channel_model_0</source_block_id>
-    <sink_block_id>wxgui_fftsink2_0</sink_block_id>
+    <source_block_id>digital_psk_mod_0</source_block_id>
+    <sink_block_id>blocks_throttle_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>analog_random_source_x</source_block_id>
-    <sink_block_id>digital_psk_mod_0</sink_block_id>
+    <source_block_id>blocks_throttle_0</source_block_id>
+    <sink_block_id>channels_channel_model_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>digital_psk_mod_0</source_block_id>
-    <sink_block_id>blocks_throttle_0</sink_block_id>
+    <source_block_id>channels_channel_model_0</source_block_id>
+    <sink_block_id>digital_fll_band_edge_cc_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>blocks_throttle_0</source_block_id>
-    <sink_block_id>channels_channel_model_0</sink_block_id>
+    <source_block_id>channels_channel_model_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>channels_channel_model_0</source_block_id>
-    <sink_block_id>digital_fll_band_edge_cc_0</sink_block_id>
+    <sink_block_id>qtgui_time_sink_x_0_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>digital_fll_band_edge_cc_0</source_block_id>
-    <sink_block_id>wxgui_scopesink2_0_0</sink_block_id>
+    <sink_block_id>qtgui_time_sink_x_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
     <source_block_id>digital_fll_band_edge_cc_0</source_block_id>
-    <sink_block_id>wxgui_fftsink2_0_0</sink_block_id>
+    <sink_block_id>qtgui_freq_sink_x_1</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
-- 
cgit v1.2.3