5 files changed, 1858 insertions, 898 deletions
diff --git a/gr-fcd/examples/grc/CMakeLists.txt b/gr-fcd/examples/grc/CMakeLists.txt
index e33fdf1825..5e883e3754 100644
--- a/gr-fcd/examples/grc/CMakeLists.txt
+++ b/gr-fcd/examples/grc/CMakeLists.txt
@@ -19,7 +19,7 @@
 
 INSTALL(FILES
   fcd_apt_rx.grc
-  fcd_fft_wx.grc
+  fcd_fft.grc
   fcd_nfm_rx.grc
   DESTINATION ${GR_PKG_FCD_EXAMPLES_DIR}
   COMPONENT "fcd_examples"
diff --git a/gr-fcd/examples/grc/fcd_apt_rx.grc b/gr-fcd/examples/grc/fcd_apt_rx.grc
index 3c88db7edd..f68d235f3e 100644
--- a/gr-fcd/examples/grc/fcd_apt_rx.grc
+++ b/gr-fcd/examples/grc/fcd_apt_rx.grc
@@ -1,6 +1,6 @@
 <?xml version='1.0' encoding='ASCII'?>
 <flow_graph>
-  <timestamp>Mon Mar 18 10:04:36 2013</timestamp>
+  <timestamp>Mon Jul 14 15:02:48 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>
@@ -52,6 +52,10 @@
       <value></value>
     </param>
     <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
       <key>_coordinate</key>
       <value>(10, 10)</value>
     </param>
@@ -61,42 +65,107 @@
     </param>
   </block>
   <block>
-    <key>variable_static_text</key>
+    <key>variable</key>
     <param>
       <key>id</key>
-      <value>rec_info</value>
+      <value>wav_file</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Recording to</value>
+      <key>value</key>
+      <value>prefix + datetime.now().strftime("%Y.%m.%d.%H.%M.%S") + ".wav"</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(803, 441)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>prefix</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
       <key>value</key>
-      <value>wav_file</value>
+      <value>"FCD_APT_REC-"</value>
     </param>
     <param>
-      <key>converver</key>
-      <value>str_converter</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>formatter</key>
-      <value>None</value>
+      <key>_coordinate</key>
+      <value>(666, 442)</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value>1,1,1,1</value>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>96000</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(190, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>max_dev</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>17000</value>
     </param>
     <param>
-      <key>notebook</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(641, 14)</value>
+      <value>(282, 11)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -115,7 +184,7 @@
     </param>
     <param>
       <key>device_name</key>
-      <value>hw:1</value>
+      <value>hw:0</value>
     </param>
     <param>
       <key>freq</key>
@@ -150,8 +219,24 @@
       <value>1.0</value>
     </param>
     <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <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>(68, 215)</value>
+      <value>(65, 134)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -159,50 +244,62 @@
     </param>
   </block>
   <block>
-    <key>variable_chooser</key>
+    <key>analog_fm_demod_cf</key>
     <param>
       <key>id</key>
-      <value>fcd_lna_gain</value>
+      <value>analog_fm_demod_cf_0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>LNA gain [dB]</value>
+      <key>chan_rate</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>value</key>
-      <value>20.0</value>
+      <key>audio_decim</key>
+      <value>2</value>
     </param>
     <param>
-      <key>choices</key>
-      <value>[30.0, 25.0, 20.0, 17.5, 15.0, 12.5, 10.0, 7.5, 5.0, 2.5, 0.0, -2.5, -5.0]</value>
+      <key>deviation</key>
+      <value>max_dev</value>
     </param>
     <param>
-      <key>labels</key>
-      <value>[]</value>
+      <key>audio_pass</key>
+      <value>5000</value>
     </param>
     <param>
-      <key>type</key>
-      <value>drop_down</value>
+      <key>audio_stop</key>
+      <value>7000</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.RA_HORIZONTAL</value>
+      <key>gain</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value>2,0,1,1</value>
+      <key>tau</key>
+      <value>75e-6</value>
     </param>
     <param>
-      <key>notebook</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
+      <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>(247, 405)</value>
+      <value>(602, 150)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -210,50 +307,54 @@
     </param>
   </block>
   <block>
-    <key>variable_chooser</key>
+    <key>rational_resampler_xxx</key>
     <param>
       <key>id</key>
-      <value>sat_freq</value>
+      <value>rational_resampler_xxx_0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Satellite</value>
+      <key>type</key>
+      <value>fff</value>
     </param>
     <param>
-      <key>value</key>
-      <value>137500000</value>
+      <key>interp</key>
+      <value>11025</value>
     </param>
     <param>
-      <key>choices</key>
-      <value>[137500000,137620000,137912500,137100000]</value>
+      <key>decim</key>
+      <value>48000</value>
     </param>
     <param>
-      <key>labels</key>
-      <value>["NOAA-15","NOAA-17","NOAA-18","NOAA-19"]</value>
+      <key>taps</key>
+      <value>[]</value>
     </param>
     <param>
-      <key>type</key>
-      <value>drop_down</value>
+      <key>fbw</key>
+      <value>0</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.RA_HORIZONTAL</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value>1,0,1,1</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>notebook</key>
-      <value></value>
+      <key>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(58, 403)</value>
+      <value>(588, 342)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -261,90 +362,112 @@
     </param>
   </block>
   <block>
-    <key>wxgui_fftsink2</key>
+    <key>audio_sink</key>
     <param>
       <key>id</key>
-      <value>fftsink</value>
+      <value>audio_sink</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>samp_rate</key>
+      <value>48000</value>
     </param>
     <param>
-      <key>title</key>
-      <value>FCD Spectrum</value>
+      <key>device_name</key>
+      <value></value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>ok_to_block</key>
+      <value>True</value>
     </param>
     <param>
-      <key>baseband_freq</key>
-      <value>sat_freq</value>
+      <key>num_inputs</key>
+      <value>1</value>
     </param>
     <param>
-      <key>y_per_div</key>
-      <value>10</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>y_divs</key>
-      <value>10</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>ref_level</key>
-      <value>0.0</value>
+      <key>_coordinate</key>
+      <value>(831, 198)</value>
     </param>
     <param>
-      <key>ref_scale</key>
-      <value>1.0</value>
+      <key>_rotation</key>
+      <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>import</key>
     <param>
-      <key>fft_size</key>
-      <value>512</value>
+      <key>id</key>
+      <value>import_0</value>
     </param>
     <param>
-      <key>fft_rate</key>
-      <value>15</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>peak_hold</key>
-      <value>False</value>
+      <key>import</key>
+      <value>from datetime import datetime</value>
     </param>
     <param>
-      <key>average</key>
-      <value>False</value>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(549, 442)</value>
     </param>
     <param>
-      <key>avg_alpha</key>
+      <key>_rotation</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>blocks_wavfile_sink</key>
     <param>
-      <key>win</key>
-      <value>None</value>
+      <key>id</key>
+      <value>wavfile_sink</value>
     </param>
     <param>
-      <key>win_size</key>
-      <value></value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value>0,0,1,2</value>
+      <key>file</key>
+      <value>wav_file</value>
+    </param>
+    <param>
+      <key>nchan</key>
+      <value>1</value>
     </param>
     <param>
-      <key>notebook</key>
+      <key>samp_rate</key>
+      <value>11025</value>
+    </param>
+    <param>
+      <key>bits_per_sample</key>
+      <value>16</value>
+    </param>
+    <param>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
-      <key>freqvar</key>
-      <value>None</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(375, 11)</value>
+      <value>(842, 350)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -352,22 +475,70 @@
     </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>low_pass_filter</key>
     <param>
       <key>id</key>
-      <value>samp_rate</value>
+      <value>low_pass_filter</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>96000</value>
+      <key>type</key>
+      <value>fir_filter_ccf</value>
+    </param>
+    <param>
+      <key>decim</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>interp</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>gain</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>cutoff_freq</key>
+      <value>25000</value>
+    </param>
+    <param>
+      <key>width</key>
+      <value>5000</value>
+    </param>
+    <param>
+      <key>win</key>
+      <value>firdes.WIN_HAMMING</value>
+    </param>
+    <param>
+      <key>beta</key>
+      <value>6.76</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <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>(190, 11)</value>
+      <value>(403, 150)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -375,80 +546,98 @@
     </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>variable_qtgui_chooser</key>
     <param>
       <key>id</key>
-      <value>max_dev</value>
+      <value>sat_freq</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>17000</value>
+      <key>label</key>
+      <value>Satellite</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(282, 11)</value>
+      <key>type</key>
+      <value>real</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>num_opts</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>blocks_wavfile_sink</key>
     <param>
-      <key>id</key>
-      <value>wavfile_sink</value>
+      <key>value</key>
+      <value>137500000</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>options</key>
+      <value>[137500000,137620000,137912500,137100000]</value>
     </param>
     <param>
-      <key>file</key>
-      <value>wav_file</value>
+      <key>labels</key>
+      <value>["NOAA-15","NOAA-17","NOAA-18","NOAA-19"]</value>
     </param>
     <param>
-      <key>nchan</key>
+      <key>option0</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>label0</key>
+      <value></value>
+    </param>
+    <param>
+      <key>option1</key>
       <value>1</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>11025</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>bits_per_sample</key>
-      <value>16</value>
+      <key>option2</key>
+      <value>2</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(845, 431)</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>option3</key>
+      <value>3</value>
     </param>
-  </block>
-  <block>
-    <key>import</key>
     <param>
-      <key>id</key>
-      <value>import_0</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>option4</key>
+      <value>4</value>
     </param>
     <param>
-      <key>import</key>
-      <value>from datetime import datetime</value>
+      <key>label4</key>
+      <value></value>
+    </param>
+    <param>
+      <key>widget</key>
+      <value>combo_box</value>
+    </param>
+    <param>
+      <key>orient</key>
+      <value>Qt.QVBoxLayout</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>1,0,1,1</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(552, 523)</value>
+      <value>(57, 360)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -456,22 +645,42 @@
     </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>variable_qtgui_label</key>
     <param>
       <key>id</key>
-      <value>prefix</value>
+      <value>rec_info</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
+      <key>label</key>
+      <value>Recording to</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>string</value>
+    </param>
+    <param>
       <key>value</key>
-      <value>"FCD_APT_REC-"</value>
+      <value>wav_file</value>
+    </param>
+    <param>
+      <key>formatter</key>
+      <value>None</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>1,1,1,1</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(669, 523)</value>
+      <value>(761, 20)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -479,112 +688,254 @@
     </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>qtgui_freq_sink_x</key>
     <param>
       <key>id</key>
-      <value>wav_file</value>
+      <value>qtgui_freq_sink_x_0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>prefix + datetime.now().strftime("%Y.%m.%d.%H.%M.%S") + ".wav"</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(806, 522)</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>fftsize</key>
+      <value>512</value>
     </param>
-  </block>
-  <block>
-    <key>low_pass_filter</key>
     <param>
-      <key>id</key>
-      <value>low_pass_filter</value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
     </param>
     <param>
-      <key>_enabled</key>
+      <key>fc</key>
+      <value>sat_freq</value>
+    </param>
+    <param>
+      <key>bw</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>grid</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>autoscale</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>average</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>ymin</key>
+      <value>-140</value>
+    </param>
+    <param>
+      <key>ymax</key>
+      <value>10</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>0,0,1,2</value>
+    </param>
+    <param>
+      <key>showports</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>fir_filter_ccf</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>decim</key>
+      <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>interp</key>
+      <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>gain</key>
+      <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>samp_rate</key>
-      <value>samp_rate</value>
+      <key>color3</key>
+      <value>"green"</value>
     </param>
     <param>
-      <key>cutoff_freq</key>
-      <value>25000</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>width</key>
-      <value>5000</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>win</key>
-      <value>firdes.WIN_HAMMING</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>beta</key>
-      <value>6.76</value>
+      <key>color4</key>
+      <value>"black"</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(374, 231)</value>
+      <key>alpha4</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>label5</key>
+      <value></value>
     </param>
-  </block>
-  <block>
-    <key>audio_sink</key>
     <param>
-      <key>id</key>
-      <value>audio_sink</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>color5</key>
+      <value>"cyan"</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>48000</value>
+      <key>alpha5</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>device_name</key>
+      <key>label6</key>
       <value></value>
     </param>
     <param>
-      <key>ok_to_block</key>
-      <value>True</value>
+      <key>width6</key>
+      <value>1</value>
     </param>
     <param>
-      <key>num_inputs</key>
+      <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>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(834, 279)</value>
+      <value>(399, 50)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -592,85 +943,98 @@
     </param>
   </block>
   <block>
-    <key>rational_resampler_xxx</key>
+    <key>variable_qtgui_chooser</key>
     <param>
       <key>id</key>
-      <value>rational_resampler_xxx_0</value>
+      <value>fcd_lna_gain</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
+      <key>label</key>
+      <value>LNA Gain (dB)</value>
+    </param>
+    <param>
       <key>type</key>
-      <value>fff</value>
+      <value>real</value>
     </param>
     <param>
-      <key>interp</key>
-      <value>11025</value>
+      <key>num_opts</key>
+      <value>0</value>
     </param>
     <param>
-      <key>decim</key>
-      <value>48000</value>
+      <key>value</key>
+      <value>20</value>
     </param>
     <param>
-      <key>taps</key>
+      <key>options</key>
+      <value>[30.0, 25.0, 20.0, 17.5, 15.0, 12.5, 10.0, 7.5, 5.0, 2.5, 0.0, -2.5, -5.0]</value>
+    </param>
+    <param>
+      <key>labels</key>
       <value>[]</value>
     </param>
     <param>
-      <key>fbw</key>
+      <key>option0</key>
       <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(591, 423)</value>
+      <key>label0</key>
+      <value></value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>option1</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>analog_fm_demod_cf</key>
     <param>
-      <key>id</key>
-      <value>analog_fm_demod_cf_0</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>option2</key>
+      <value>2</value>
     </param>
     <param>
-      <key>chan_rate</key>
-      <value>samp_rate</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>audio_decim</key>
-      <value>2</value>
+      <key>option3</key>
+      <value>3</value>
     </param>
     <param>
-      <key>deviation</key>
-      <value>max_dev</value>
+      <key>label3</key>
+      <value></value>
     </param>
     <param>
-      <key>audio_pass</key>
-      <value>5000</value>
+      <key>option4</key>
+      <value>4</value>
     </param>
     <param>
-      <key>audio_stop</key>
-      <value>7000</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>gain</key>
-      <value>1.0</value>
+      <key>widget</key>
+      <value>combo_box</value>
     </param>
     <param>
-      <key>tau</key>
-      <value>75e-6</value>
+      <key>orient</key>
+      <value>Qt.QVBoxLayout</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>2,0,1,1</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(605, 231)</value>
+      <value>(247, 363)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -678,20 +1042,20 @@
     </param>
   </block>
   <connection>
-    <source_block_id>rational_resampler_xxx_0</source_block_id>
-    <sink_block_id>wavfile_sink</sink_block_id>
+    <source_block_id>fcd_source_c_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>fcd_source_c_0</source_block_id>
-    <sink_block_id>fftsink</sink_block_id>
+    <source_block_id>analog_fm_demod_cf_0</source_block_id>
+    <sink_block_id>rational_resampler_xxx_0</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>fcd_source_c_0</source_block_id>
-    <sink_block_id>low_pass_filter</sink_block_id>
+    <source_block_id>analog_fm_demod_cf_0</source_block_id>
+    <sink_block_id>audio_sink</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
@@ -702,14 +1066,14 @@
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>analog_fm_demod_cf_0</source_block_id>
-    <sink_block_id>audio_sink</sink_block_id>
+    <source_block_id>fcd_source_c_0</source_block_id>
+    <sink_block_id>low_pass_filter</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
   <connection>
-    <source_block_id>analog_fm_demod_cf_0</source_block_id>
-    <sink_block_id>rational_resampler_xxx_0</sink_block_id>
+    <source_block_id>rational_resampler_xxx_0</source_block_id>
+    <sink_block_id>wavfile_sink</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
diff --git a/gr-fcd/examples/grc/fcd_fft.grc b/gr-fcd/examples/grc/fcd_fft.grc
new file mode 100644
index 0000000000..5a91fca4f4
--- /dev/null
+++ b/gr-fcd/examples/grc/fcd_fft.grc
@@ -0,0 +1,564 @@
+<?xml version='1.0' encoding='ASCII'?>
+<flow_graph>
+  <timestamp>Mon Jul 14 14:53:06 2014</timestamp>
+  <block>
+    <key>options</key>
+    <param>
+      <key>id</key>
+      <value>fcd_fft</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>Funcube Dongle FFT scope</value>
+    </param>
+    <param>
+      <key>author</key>
+      <value>Alexandru Csete OZ9AEC</value>
+    </param>
+    <param>
+      <key>description</key>
+      <value></value>
+    </param>
+    <param>
+      <key>window_size</key>
+      <value>1280, 1024</value>
+    </param>
+    <param>
+      <key>generate_options</key>
+      <value>qt_gui</value>
+    </param>
+    <param>
+      <key>category</key>
+      <value>Custom</value>
+    </param>
+    <param>
+      <key>run_options</key>
+      <value>prompt</value>
+    </param>
+    <param>
+      <key>run</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>max_nouts</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>realtime_scheduling</key>
+      <value></value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(10, 10)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>96000</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(201, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_qtgui_entry</key>
+    <param>
+      <key>id</key>
+      <value>fcd_freq</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>FCD Freq</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>real</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>145.5e6</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>1,0,1,1</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(299, 12)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_qtgui_chooser</key>
+    <param>
+      <key>id</key>
+      <value>fcd_lna_gain</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>LNA Gain (dB)</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>real</value>
+    </param>
+    <param>
+      <key>num_opts</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>options</key>
+      <value>[30.0, 25.0, 20.0, 17.5, 15.0, 12.5, 10.0, 7.5, 5.0, 2.5, 0.0, -2.5, -5.0]</value>
+    </param>
+    <param>
+      <key>labels</key>
+      <value>[]</value>
+    </param>
+    <param>
+      <key>option0</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>label0</key>
+      <value></value>
+    </param>
+    <param>
+      <key>option1</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>label1</key>
+      <value></value>
+    </param>
+    <param>
+      <key>option2</key>
+      <value>2</value>
+    </param>
+    <param>
+      <key>label2</key>
+      <value></value>
+    </param>
+    <param>
+      <key>option3</key>
+      <value>3</value>
+    </param>
+    <param>
+      <key>label3</key>
+      <value></value>
+    </param>
+    <param>
+      <key>option4</key>
+      <value>4</value>
+    </param>
+    <param>
+      <key>label4</key>
+      <value></value>
+    </param>
+    <param>
+      <key>widget</key>
+      <value>combo_box</value>
+    </param>
+    <param>
+      <key>orient</key>
+      <value>Qt.QVBoxLayout</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>2,0,1,1</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(439, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>fcd_source_c</key>
+    <param>
+      <key>id</key>
+      <value>fcd_source_c_1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>device_name</key>
+      <value>hw:0</value>
+    </param>
+    <param>
+      <key>freq</key>
+      <value>fcd_freq</value>
+    </param>
+    <param>
+      <key>lna</key>
+      <value>fcd_lna_gain</value>
+    </param>
+    <param>
+      <key>mixer</key>
+      <value>+12</value>
+    </param>
+    <param>
+      <key>ppm</key>
+      <value>-120</value>
+    </param>
+    <param>
+      <key>dci</key>
+      <value>0.0</value>
+    </param>
+    <param>
+      <key>dcq</key>
+      <value>0.0</value>
+    </param>
+    <param>
+      <key>iq_phase</key>
+      <value>0.0</value>
+    </param>
+    <param>
+      <key>iq_gain</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <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>(13, 134)</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_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>name</key>
+      <value>""</value>
+    </param>
+    <param>
+      <key>fftsize</key>
+      <value>512</value>
+    </param>
+    <param>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+    </param>
+    <param>
+      <key>fc</key>
+      <value>fcd_freq</value>
+    </param>
+    <param>
+      <key>bw</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>grid</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>autoscale</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>average</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>ymin</key>
+      <value>-140</value>
+    </param>
+    <param>
+      <key>ymax</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>nconnections</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>update_time</key>
+      <value>0.05</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>0,0,1,2</value>
+    </param>
+    <param>
+      <key>showports</key>
+      <value>True</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>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(282, 182)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <connection>
+    <source_block_id>fcd_source_c_1</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>
+</flow_graph>
diff --git a/gr-fcd/examples/grc/fcd_fft_wx.grc b/gr-fcd/examples/grc/fcd_fft_wx.grc
deleted file mode 100644
index c045bbfa24..0000000000
--- a/gr-fcd/examples/grc/fcd_fft_wx.grc
+++ /dev/null
@@ -1,320 +0,0 @@
-<?xml version='1.0' encoding='ASCII'?>
-<flow_graph>
-  <timestamp>Sun May  8 18:02:35 2011</timestamp>
-  <block>
-    <key>options</key>
-    <param>
-      <key>id</key>
-      <value>fcd_fft_wx</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>title</key>
-      <value>Funcube Dongle FFT scope</value>
-    </param>
-    <param>
-      <key>author</key>
-      <value>Alexandru Csete OZ9AEC</value>
-    </param>
-    <param>
-      <key>description</key>
-      <value></value>
-    </param>
-    <param>
-      <key>window_size</key>
-      <value>1280, 1024</value>
-    </param>
-    <param>
-      <key>generate_options</key>
-      <value>wx_gui</value>
-    </param>
-    <param>
-      <key>category</key>
-      <value>Custom</value>
-    </param>
-    <param>
-      <key>run_options</key>
-      <value>prompt</value>
-    </param>
-    <param>
-      <key>run</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>realtime_scheduling</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(10, 10)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable</key>
-    <param>
-      <key>id</key>
-      <value>samp_rate</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>96000</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(201, 11)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_text_box</key>
-    <param>
-      <key>id</key>
-      <value>fcd_freq</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>FCD freq</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>145500000</value>
-    </param>
-    <param>
-      <key>converver</key>
-      <value>float_converter</value>
-    </param>
-    <param>
-      <key>formatter</key>
-      <value>None</value>
-    </param>
-    <param>
-      <key>grid_pos</key>
-      <value>1,0,1,1</value>
-    </param>
-    <param>
-      <key>notebook</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(300, 11)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>variable_chooser</key>
-    <param>
-      <key>id</key>
-      <value>fcd_lna_gain</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>label</key>
-      <value>LNA gain [dB]</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>20.0</value>
-    </param>
-    <param>
-      <key>choices</key>
-      <value>[30.0, 25.0, 20.0, 17.5, 15.0, 12.5, 10.0, 7.5, 5.0, 2.5, 0.0, -2.5, -5.0]</value>
-    </param>
-    <param>
-      <key>labels</key>
-      <value>[]</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>drop_down</value>
-    </param>
-    <param>
-      <key>style</key>
-      <value>wx.RA_HORIZONTAL</value>
-    </param>
-    <param>
-      <key>grid_pos</key>
-      <value>2,0,1,1</value>
-    </param>
-    <param>
-      <key>notebook</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(446, 10)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>wxgui_fftsink2</key>
-    <param>
-      <key>id</key>
-      <value>wxgui_fftsink2_0</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>type</key>
-      <value>complex</value>
-    </param>
-    <param>
-      <key>title</key>
-      <value>FCD Spectrum</value>
-    </param>
-    <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
-    </param>
-    <param>
-      <key>baseband_freq</key>
-      <value>fcd_freq</value>
-    </param>
-    <param>
-      <key>y_per_div</key>
-      <value>10</value>
-    </param>
-    <param>
-      <key>y_divs</key>
-      <value>10</value>
-    </param>
-    <param>
-      <key>ref_level</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>ref_scale</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>fft_size</key>
-      <value>512</value>
-    </param>
-    <param>
-      <key>fft_rate</key>
-      <value>15</value>
-    </param>
-    <param>
-      <key>peak_hold</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>average</key>
-      <value>False</value>
-    </param>
-    <param>
-      <key>avg_alpha</key>
-      <value>0</value>
-    </param>
-    <param>
-      <key>win</key>
-      <value>None</value>
-    </param>
-    <param>
-      <key>win_size</key>
-      <value></value>
-    </param>
-    <param>
-      <key>grid_pos</key>
-      <value>0,0,1,2</value>
-    </param>
-    <param>
-      <key>notebook</key>
-      <value></value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(442, 176)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <block>
-    <key>fcd_source_c</key>
-    <param>
-      <key>id</key>
-      <value>fcd_source_c_1</value>
-    </param>
-    <param>
-      <key>_enabled</key>
-      <value>True</value>
-    </param>
-    <param>
-      <key>device_name</key>
-      <value>hw:1</value>
-    </param>
-    <param>
-      <key>freq</key>
-      <value>fcd_freq</value>
-    </param>
-    <param>
-      <key>lna</key>
-      <value>fcd_lna_gain</value>
-    </param>
-    <param>
-      <key>ppm</key>
-      <value>-120</value>
-    </param>
-    <param>
-      <key>dci</key>
-      <value>0.0</value>
-    </param>
-    <param>
-      <key>dcq</key>
-      <value>0.0</value>
-    </param>
-    <param>
-      <key>iq_phase</key>
-      <value>0.0</value>
-    </param>
-    <param>
-      <key>iq_gain</key>
-      <value>1.0</value>
-    </param>
-    <param>
-      <key>_coordinate</key>
-      <value>(95, 192)</value>
-    </param>
-    <param>
-      <key>_rotation</key>
-      <value>0</value>
-    </param>
-  </block>
-  <connection>
-    <source_block_id>fcd_source_c_1</source_block_id>
-    <sink_block_id>wxgui_fftsink2_0</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-</flow_graph>
diff --git a/gr-fcd/examples/grc/fcd_nfm_rx.grc b/gr-fcd/examples/grc/fcd_nfm_rx.grc
index afe343a834..af56c4f28e 100644
--- a/gr-fcd/examples/grc/fcd_nfm_rx.grc
+++ b/gr-fcd/examples/grc/fcd_nfm_rx.grc
@@ -1,6 +1,6 @@
 <?xml version='1.0' encoding='ASCII'?>
 <flow_graph>
-  <timestamp>Mon Mar 18 10:11:39 2013</timestamp>
+  <timestamp>Mon Jul 14 15:02:45 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>
@@ -52,6 +52,10 @@
       <value></value>
     </param>
     <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
       <key>_coordinate</key>
       <value>(10, 10)</value>
     </param>
@@ -61,42 +65,53 @@
     </param>
   </block>
   <block>
-    <key>variable_static_text</key>
+    <key>variable</key>
     <param>
       <key>id</key>
-      <value>rx_freq</value>
+      <value>xlate_filter_taps</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Receive</value>
+      <key>value</key>
+      <value>firdes.low_pass(1, samp_rate, 48000, 5000, firdes.WIN_HAMMING, 6.76)</value>
     </param>
     <param>
-      <key>value</key>
-      <value>freq+(offset_coarse+offset_fine)</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>converver</key>
-      <value>float_converter</value>
+      <key>_coordinate</key>
+      <value>(428, 294)</value>
     </param>
     <param>
-      <key>formatter</key>
-      <value>None</value>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value>5,3,1,1</value>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>96000</value>
     </param>
     <param>
-      <key>notebook</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(491, 10)</value>
+      <value>(182, 11)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -104,54 +119,70 @@
     </param>
   </block>
   <block>
-    <key>variable_slider</key>
+    <key>low_pass_filter</key>
     <param>
       <key>id</key>
-      <value>offset_fine</value>
+      <value>low_pass_filter</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Fine tune</value>
+      <key>type</key>
+      <value>fir_filter_ccf</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0</value>
+      <key>decim</key>
+      <value>1</value>
     </param>
     <param>
-      <key>min</key>
-      <value>-1000</value>
+      <key>interp</key>
+      <value>1</value>
     </param>
     <param>
-      <key>max</key>
-      <value>1000</value>
+      <key>gain</key>
+      <value>1</value>
     </param>
     <param>
-      <key>num_steps</key>
-      <value>400</value>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.SL_HORIZONTAL</value>
+      <key>cutoff_freq</key>
+      <value>width/2</value>
     </param>
     <param>
-      <key>converver</key>
-      <value>float_converter</value>
+      <key>width</key>
+      <value>trans</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value>6,0,1,2</value>
+      <key>win</key>
+      <value>firdes.WIN_HAMMING</value>
+    </param>
+    <param>
+      <key>beta</key>
+      <value>6.76</value>
+    </param>
+    <param>
+      <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>(9, 279)</value>
+      <value>(742, 266)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -159,54 +190,70 @@
     </param>
   </block>
   <block>
-    <key>variable_slider</key>
+    <key>fcd_source_c</key>
     <param>
       <key>id</key>
-      <value>offset_coarse</value>
+      <value>fcd_source_c_1</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Coarse tune</value>
+      <key>device_name</key>
+      <value>hw:0</value>
     </param>
     <param>
-      <key>value</key>
-      <value>0</value>
+      <key>freq</key>
+      <value>freq</value>
     </param>
     <param>
-      <key>min</key>
-      <value>-48000</value>
+      <key>lna</key>
+      <value>rf_gain</value>
     </param>
     <param>
-      <key>max</key>
-      <value>48000</value>
+      <key>mixer</key>
+      <value>+12</value>
     </param>
     <param>
-      <key>num_steps</key>
-      <value>960</value>
+      <key>ppm</key>
+      <value>-120</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.SL_HORIZONTAL</value>
+      <key>dci</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>converver</key>
-      <value>float_converter</value>
+      <key>dcq</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value>6,2,1,2</value>
+      <key>iq_phase</key>
+      <value>0.0</value>
     </param>
     <param>
-      <key>notebook</key>
+      <key>iq_gain</key>
+      <value>1.0</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <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>(10, 130)</value>
+      <value>(165, 157)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -214,54 +261,54 @@
     </param>
   </block>
   <block>
-    <key>variable_slider</key>
+    <key>freq_xlating_fir_filter_xxx</key>
     <param>
       <key>id</key>
-      <value>width</value>
+      <value>freq_xlating_fir_filter_xxx_0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Filter</value>
+      <key>type</key>
+      <value>ccc</value>
     </param>
     <param>
-      <key>value</key>
-      <value>10000</value>
+      <key>decim</key>
+      <value>1</value>
     </param>
     <param>
-      <key>min</key>
-      <value>2000</value>
+      <key>taps</key>
+      <value>xlate_filter_taps</value>
     </param>
     <param>
-      <key>max</key>
-      <value>40000</value>
+      <key>center_freq</key>
+      <value>-(offset_coarse+offset_fine)</value>
     </param>
     <param>
-      <key>num_steps</key>
-      <value>760</value>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.SL_HORIZONTAL</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>converver</key>
-      <value>float_converter</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value>7,0,1,1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>notebook</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(9, 431)</value>
+      <value>(422, 173)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -269,144 +316,254 @@
     </param>
   </block>
   <block>
-    <key>variable_slider</key>
+    <key>qtgui_freq_sink_x</key>
     <param>
       <key>id</key>
-      <value>trans</value>
+      <value>qtgui_freq_sink_x_0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Trans</value>
+      <key>type</key>
+      <value>complex</value>
     </param>
     <param>
-      <key>value</key>
-      <value>1500</value>
+      <key>name</key>
+      <value>""</value>
     </param>
     <param>
-      <key>min</key>
-      <value>500</value>
+      <key>fftsize</key>
+      <value>512</value>
     </param>
     <param>
-      <key>max</key>
-      <value>5000</value>
+      <key>wintype</key>
+      <value>firdes.WIN_BLACKMAN_hARRIS</value>
+    </param>
+    <param>
+      <key>fc</key>
+      <value>rx_freq*display_selector</value>
     </param>
     <param>
-      <key>num_steps</key>
-      <value>900</value>
+      <key>bw</key>
+      <value>samp_rate</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.SL_HORIZONTAL</value>
+      <key>grid</key>
+      <value>False</value>
     </param>
     <param>
-      <key>converver</key>
-      <value>float_converter</value>
+      <key>autoscale</key>
+      <value>False</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value>8,0,1,1</value>
+      <key>average</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>notebook</key>
-      <value></value>
+      <key>ymin</key>
+      <value>-140</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(10, 577)</value>
+      <key>ymax</key>
+      <value>10</value>
     </param>
     <param>
-      <key>_rotation</key>
-      <value>0</value>
+      <key>nconnections</key>
+      <value>1</value>
     </param>
-  </block>
-  <block>
-    <key>variable_slider</key>
     <param>
-      <key>id</key>
-      <value>af_gain</value>
+      <key>update_time</key>
+      <value>0.05</value>
     </param>
     <param>
-      <key>_enabled</key>
+      <key>gui_hint</key>
+      <value>0,0,5,4</value>
+    </param>
+    <param>
+      <key>showports</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>VOL</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>value</key>
+      <key>width1</key>
       <value>1</value>
     </param>
     <param>
-      <key>min</key>
-      <value>0</value>
+      <key>color1</key>
+      <value>"blue"</value>
     </param>
     <param>
-      <key>max</key>
-      <value>5</value>
+      <key>alpha1</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>num_steps</key>
-      <value>50</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.SL_HORIZONTAL</value>
+      <key>width2</key>
+      <value>1</value>
     </param>
     <param>
-      <key>converver</key>
-      <value>float_converter</value>
+      <key>color2</key>
+      <value>"red"</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value>8,1,1,1</value>
+      <key>alpha2</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>notebook</key>
+      <key>label3</key>
       <value></value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(168, 726)</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>audio_sink</key>
     <param>
-      <key>id</key>
-      <value>audio_sink</value>
+      <key>alpha3</key>
+      <value>1.0</value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>label4</key>
+      <value></value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>48000</value>
+      <key>width4</key>
+      <value>1</value>
     </param>
     <param>
-      <key>device_name</key>
+      <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>ok_to_block</key>
-      <value>True</value>
+      <key>width5</key>
+      <value>1</value>
     </param>
     <param>
-      <key>num_inputs</key>
-      <value>2</value>
+      <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>minoutbuf</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(882, 511)</value>
+      <value>(732, 165)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -414,22 +571,38 @@
     </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>variable_qtgui_entry</key>
     <param>
       <key>id</key>
-      <value>samp_rate</value>
+      <value>freq</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
+      <key>label</key>
+      <value>FCD Freq</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>real</value>
+    </param>
+    <param>
       <key>value</key>
-      <value>96000</value>
+      <value>144.47e6</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>5,1,1,1</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(210, 12)</value>
+      <value>(282, 10)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -437,10 +610,10 @@
     </param>
   </block>
   <block>
-    <key>variable_slider</key>
+    <key>variable_qtgui_label</key>
     <param>
       <key>id</key>
-      <value>sql_lev</value>
+      <value>rx_freq</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -448,43 +621,74 @@
     </param>
     <param>
       <key>label</key>
-      <value>SQL</value>
+      <value>Receive</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>real</value>
     </param>
     <param>
       <key>value</key>
-      <value>-100</value>
+      <value>freq+(offset_coarse+offset_fine)</value>
     </param>
     <param>
-      <key>min</key>
-      <value>-100</value>
+      <key>formatter</key>
+      <value>None</value>
     </param>
     <param>
-      <key>max</key>
+      <key>gui_hint</key>
+      <value>4,3,1,1</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(430, 10)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
       <value>0</value>
     </param>
+  </block>
+  <block>
+    <key>analog_simple_squelch_cc</key>
+    <param>
+      <key>id</key>
+      <value>analog_simple_squelch_cc_0</value>
+    </param>
     <param>
-      <key>num_steps</key>
-      <value>500</value>
+      <key>_enabled</key>
+      <value>True</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.SL_HORIZONTAL</value>
+      <key>threshold</key>
+      <value>sql_lev</value>
     </param>
     <param>
-      <key>converver</key>
-      <value>float_converter</value>
+      <key>alpha</key>
+      <value>1</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value>7,2,1,1</value>
+      <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>(328, 728)</value>
+      <value>(199, 498)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -492,22 +696,50 @@
     </param>
   </block>
   <block>
-    <key>variable</key>
+    <key>analog_nbfm_rx</key>
     <param>
       <key>id</key>
-      <value>xlate_filter_taps</value>
+      <value>analog_nbfm_rx_0</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>value</key>
-      <value>firdes.low_pass(1, samp_rate, 48000, 5000, firdes.WIN_HAMMING, 6.76)</value>
+      <key>audio_rate</key>
+      <value>48000</value>
+    </param>
+    <param>
+      <key>quad_rate</key>
+      <value>96000</value>
+    </param>
+    <param>
+      <key>tau</key>
+      <value>75e-6</value>
+    </param>
+    <param>
+      <key>max_dev</key>
+      <value>5e3</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
+      <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>(428, 294)</value>
+      <value>(391, 482)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -515,50 +747,46 @@
     </param>
   </block>
   <block>
-    <key>variable_chooser</key>
+    <key>blocks_multiply_const_vxx</key>
     <param>
       <key>id</key>
-      <value>display_selector</value>
+      <value>blocks_multiply_const_vxx_1</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>Spectrum</value>
-    </param>
-    <param>
-      <key>value</key>
-      <value>0</value>
+      <key>type</key>
+      <value>float</value>
     </param>
     <param>
-      <key>choices</key>
-      <value>[0, 1]</value>
+      <key>const</key>
+      <value>af_gain</value>
     </param>
     <param>
-      <key>labels</key>
-      <value>['Baseband','RF']</value>
+      <key>vlen</key>
+      <value>1</value>
     </param>
     <param>
-      <key>type</key>
-      <value>drop_down</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.RA_HORIZONTAL</value>
+      <key>affinity</key>
+      <value></value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value>5,0,1,1</value>
+      <key>minoutbuf</key>
+      <value>0</value>
     </param>
     <param>
-      <key>notebook</key>
-      <value></value>
+      <key>maxoutbuf</key>
+      <value>0</value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(481, 728)</value>
+      <value>(580, 506)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -566,42 +794,42 @@
     </param>
   </block>
   <block>
-    <key>variable_text_box</key>
+    <key>audio_sink</key>
     <param>
       <key>id</key>
-      <value>freq</value>
+      <value>audio_sink</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>label</key>
-      <value>FCD Freq</value>
+      <key>samp_rate</key>
+      <value>48000</value>
     </param>
     <param>
-      <key>value</key>
-      <value>144470000</value>
+      <key>device_name</key>
+      <value></value>
     </param>
     <param>
-      <key>converver</key>
-      <value>float_converter</value>
+      <key>ok_to_block</key>
+      <value>True</value>
     </param>
     <param>
-      <key>formatter</key>
-      <value>None</value>
+      <key>num_inputs</key>
+      <value>2</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value>5,1,1,1</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>notebook</key>
+      <key>affinity</key>
       <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(339, 9)</value>
+      <value>(757, 510)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -609,10 +837,10 @@
     </param>
   </block>
   <block>
-    <key>variable_slider</key>
+    <key>variable_qtgui_range</key>
     <param>
       <key>id</key>
-      <value>rf_gain</value>
+      <value>offset_coarse</value>
     </param>
     <param>
       <key>_enabled</key>
@@ -620,43 +848,47 @@
     </param>
     <param>
       <key>label</key>
-      <value>RF</value>
+      <value>Coarse Tune</value>
     </param>
     <param>
       <key>value</key>
-      <value>20</value>
+      <value>0</value>
     </param>
     <param>
-      <key>min</key>
-      <value>-5</value>
+      <key>start</key>
+      <value>-48000</value>
     </param>
     <param>
-      <key>max</key>
-      <value>30</value>
+      <key>stop</key>
+      <value>48000</value>
     </param>
     <param>
-      <key>num_steps</key>
-      <value>35</value>
+      <key>step</key>
+      <value>100</value>
     </param>
     <param>
-      <key>style</key>
-      <value>wx.SL_HORIZONTAL</value>
+      <key>widget</key>
+      <value>counter</value>
     </param>
     <param>
-      <key>converver</key>
-      <value>float_converter</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value>7,1,1,1</value>
+      <key>min_len</key>
+      <value>200</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>6,2,1,2</value>
     </param>
     <param>
-      <key>notebook</key>
+      <key>alias</key>
       <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(11, 725)</value>
+      <value>(11, 123)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -664,54 +896,58 @@
     </param>
   </block>
   <block>
-    <key>fcd_source_c</key>
+    <key>variable_qtgui_range</key>
     <param>
       <key>id</key>
-      <value>fcd_source_c_1</value>
+      <value>offset_fine</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>device_name</key>
-      <value>hw:1</value>
+      <key>label</key>
+      <value>Fine Tune</value>
     </param>
     <param>
-      <key>freq</key>
-      <value>freq</value>
+      <key>value</key>
+      <value>0</value>
     </param>
     <param>
-      <key>lna</key>
-      <value>rf_gain</value>
+      <key>start</key>
+      <value>-1000</value>
     </param>
     <param>
-      <key>mixer</key>
-      <value>+12</value>
+      <key>stop</key>
+      <value>1000</value>
     </param>
     <param>
-      <key>ppm</key>
-      <value>-120</value>
+      <key>step</key>
+      <value>1</value>
     </param>
     <param>
-      <key>dci</key>
-      <value>0.0</value>
+      <key>widget</key>
+      <value>counter</value>
     </param>
     <param>
-      <key>dcq</key>
-      <value>0.0</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>iq_phase</key>
-      <value>0.0</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>iq_gain</key>
-      <value>1.0</value>
+      <key>gui_hint</key>
+      <value>6,0,1,2</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(165, 157)</value>
+      <value>(11, 250)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -719,90 +955,117 @@
     </param>
   </block>
   <block>
-    <key>wxgui_fftsink2</key>
+    <key>variable_qtgui_range</key>
     <param>
       <key>id</key>
-      <value>fftsink</value>
+      <value>width</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>complex</value>
+      <key>label</key>
+      <value>Filter</value>
     </param>
     <param>
-      <key>title</key>
-      <value></value>
+      <key>value</key>
+      <value>10000</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>start</key>
+      <value>2000</value>
     </param>
     <param>
-      <key>baseband_freq</key>
-      <value>rx_freq*display_selector</value>
+      <key>stop</key>
+      <value>40000</value>
     </param>
     <param>
-      <key>y_per_div</key>
-      <value>10</value>
+      <key>step</key>
+      <value>100</value>
     </param>
     <param>
-      <key>y_divs</key>
-      <value>10</value>
+      <key>widget</key>
+      <value>counter</value>
     </param>
     <param>
-      <key>ref_level</key>
-      <value>0</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>ref_scale</key>
-      <value>1.0</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>fft_size</key>
-      <value>512</value>
+      <key>gui_hint</key>
+      <value>7,0,1,1</value>
     </param>
     <param>
-      <key>fft_rate</key>
-      <value>15</value>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
-      <key>peak_hold</key>
-      <value>False</value>
+      <key>_coordinate</key>
+      <value>(11, 377)</value>
     </param>
     <param>
-      <key>average</key>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_qtgui_range</key>
+    <param>
+      <key>id</key>
+      <value>trans</value>
+    </param>
+    <param>
+      <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>avg_alpha</key>
-      <value>0.5</value>
+      <key>label</key>
+      <value>Trans</value>
     </param>
     <param>
-      <key>win</key>
-      <value>None</value>
+      <key>value</key>
+      <value>1500</value>
     </param>
     <param>
-      <key>win_size</key>
-      <value>800,300</value>
+      <key>start</key>
+      <value>500</value>
     </param>
     <param>
-      <key>grid_pos</key>
-      <value>0,0,5,4</value>
+      <key>stop</key>
+      <value>5000</value>
     </param>
     <param>
-      <key>notebook</key>
-      <value></value>
+      <key>step</key>
+      <value>1</value>
     </param>
     <param>
-      <key>freqvar</key>
-      <value>None</value>
+      <key>widget</key>
+      <value>counter</value>
+    </param>
+    <param>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
+    </param>
+    <param>
+      <key>min_len</key>
+      <value>200</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>8,0,1,1</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(742, 24)</value>
+      <value>(10, 504)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -810,38 +1073,58 @@
     </param>
   </block>
   <block>
-    <key>freq_xlating_fir_filter_xxx</key>
+    <key>variable_qtgui_range</key>
     <param>
       <key>id</key>
-      <value>freq_xlating_fir_filter_xxx_0</value>
+      <value>rf_gain</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>ccc</value>
+      <key>label</key>
+      <value>RF</value>
     </param>
     <param>
-      <key>decim</key>
+      <key>value</key>
+      <value>20</value>
+    </param>
+    <param>
+      <key>start</key>
+      <value>-5</value>
+    </param>
+    <param>
+      <key>stop</key>
+      <value>30</value>
+    </param>
+    <param>
+      <key>step</key>
       <value>1</value>
     </param>
     <param>
-      <key>taps</key>
-      <value>xlate_filter_taps</value>
+      <key>widget</key>
+      <value>counter</value>
     </param>
     <param>
-      <key>center_freq</key>
-      <value>-(offset_coarse+offset_fine)</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>min_len</key>
+      <value>200</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>7,1,1,1</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(422, 173)</value>
+      <value>(10, 632)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -849,54 +1132,58 @@
     </param>
   </block>
   <block>
-    <key>low_pass_filter</key>
+    <key>variable_qtgui_range</key>
     <param>
       <key>id</key>
-      <value>low_pass_filter</value>
+      <value>af_gain</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>type</key>
-      <value>fir_filter_ccf</value>
+      <key>label</key>
+      <value>VOL</value>
     </param>
     <param>
-      <key>decim</key>
+      <key>value</key>
       <value>1</value>
     </param>
     <param>
-      <key>interp</key>
-      <value>1</value>
+      <key>start</key>
+      <value>0</value>
     </param>
     <param>
-      <key>gain</key>
-      <value>1</value>
+      <key>stop</key>
+      <value>5</value>
     </param>
     <param>
-      <key>samp_rate</key>
-      <value>samp_rate</value>
+      <key>step</key>
+      <value>0.1</value>
     </param>
     <param>
-      <key>cutoff_freq</key>
-      <value>width/2</value>
+      <key>widget</key>
+      <value>counter</value>
     </param>
     <param>
-      <key>width</key>
-      <value>trans</value>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
     </param>
     <param>
-      <key>win</key>
-      <value>firdes.WIN_HAMMING</value>
+      <key>min_len</key>
+      <value>200</value>
     </param>
     <param>
-      <key>beta</key>
-      <value>6.76</value>
+      <key>gui_hint</key>
+      <value>8,1,1,1</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(742, 266)</value>
+      <value>(124, 632)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -904,26 +1191,58 @@
     </param>
   </block>
   <block>
-    <key>analog_simple_squelch_cc</key>
+    <key>variable_qtgui_range</key>
     <param>
       <key>id</key>
-      <value>analog_simple_squelch_cc_0</value>
+      <value>sql_lev</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
-      <key>threshold</key>
-      <value>sql_lev</value>
+      <key>label</key>
+      <value>SQL</value>
     </param>
     <param>
-      <key>alpha</key>
+      <key>value</key>
+      <value>-100</value>
+    </param>
+    <param>
+      <key>start</key>
+      <value>-100</value>
+    </param>
+    <param>
+      <key>stop</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>step</key>
       <value>1</value>
     </param>
     <param>
+      <key>widget</key>
+      <value>counter</value>
+    </param>
+    <param>
+      <key>orient</key>
+      <value>Qt.Horizontal</value>
+    </param>
+    <param>
+      <key>min_len</key>
+      <value>200</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>7,2,1,1</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
+    </param>
+    <param>
       <key>_coordinate</key>
-      <value>(227, 499)</value>
+      <value>(232, 632)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -931,65 +1250,98 @@
     </param>
   </block>
   <block>
-    <key>blocks_multiply_const_vxx</key>
+    <key>variable_qtgui_chooser</key>
     <param>
       <key>id</key>
-      <value>blocks_multiply_const_vxx_1</value>
+      <value>display_selector</value>
     </param>
     <param>
       <key>_enabled</key>
       <value>True</value>
     </param>
     <param>
+      <key>label</key>
+      <value>Spectrum</value>
+    </param>
+    <param>
       <key>type</key>
-      <value>float</value>
+      <value>real</value>
     </param>
     <param>
-      <key>const</key>
-      <value>af_gain</value>
+      <key>num_opts</key>
+      <value>0</value>
     </param>
     <param>
-      <key>vlen</key>
-      <value>1</value>
+      <key>value</key>
+      <value>0</value>
     </param>
     <param>
-      <key>_coordinate</key>
-      <value>(674, 507)</value>
+      <key>options</key>
+      <value>[0,1]</value>
     </param>
     <param>
-      <key>_rotation</key>
+      <key>labels</key>
+      <value>['Baseband','RF']</value>
+    </param>
+    <param>
+      <key>option0</key>
       <value>0</value>
     </param>
-  </block>
-  <block>
-    <key>analog_nbfm_rx</key>
     <param>
-      <key>id</key>
-      <value>analog_nbfm_rx_0</value>
+      <key>label0</key>
+      <value></value>
     </param>
     <param>
-      <key>_enabled</key>
-      <value>True</value>
+      <key>option1</key>
+      <value>1</value>
     </param>
     <param>
-      <key>audio_rate</key>
-      <value>48000</value>
+      <key>label1</key>
+      <value></value>
     </param>
     <param>
-      <key>quad_rate</key>
-      <value>96000</value>
+      <key>option2</key>
+      <value>2</value>
     </param>
     <param>
-      <key>tau</key>
-      <value>75e-6</value>
+      <key>label2</key>
+      <value></value>
     </param>
     <param>
-      <key>max_dev</key>
-      <value>5e3</value>
+      <key>option3</key>
+      <value>3</value>
+    </param>
+    <param>
+      <key>label3</key>
+      <value></value>
+    </param>
+    <param>
+      <key>option4</key>
+      <value>4</value>
+    </param>
+    <param>
+      <key>label4</key>
+      <value></value>
+    </param>
+    <param>
+      <key>widget</key>
+      <value>combo_box</value>
+    </param>
+    <param>
+      <key>orient</key>
+      <value>Qt.QVBoxLayout</value>
+    </param>
+    <param>
+      <key>gui_hint</key>
+      <value>5,0,1,1</value>
+    </param>
+    <param>
+      <key>alias</key>
+      <value></value>
     </param>
     <param>
       <key>_coordinate</key>
-      <value>(440, 483)</value>
+      <value>(356, 632)</value>
     </param>
     <param>
       <key>_rotation</key>
@@ -1016,12 +1368,6 @@
   </connection>
   <connection>
     <source_block_id>freq_xlating_fir_filter_xxx_0</source_block_id>
-    <sink_block_id>fftsink</sink_block_id>
-    <source_key>0</source_key>
-    <sink_key>0</sink_key>
-  </connection>
-  <connection>
-    <source_block_id>freq_xlating_fir_filter_xxx_0</source_block_id>
     <sink_block_id>low_pass_filter</sink_block_id>
     <source_key>0</source_key>
     <sink_key>0</sink_key>
@@ -1044,4 +1390,10 @@
     <source_key>0</source_key>
     <sink_key>0</sink_key>
   </connection>
+  <connection>
+    <source_block_id>freq_xlating_fir_filter_xxx_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>
 </flow_graph>