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Work in progress, added GRC-based single channel receiver
authorJohnathan Corgan <jcorgan@corganenterprises.com>
Sun, 11 Oct 2009 21:27:00 +0000 (14:27 -0700)
committerJohnathan Corgan <jcorgan@corganenterprises.com>
Tue, 3 Nov 2009 15:21:42 +0000 (07:21 -0800)
gr-pager/apps/Makefile.am patch | blob | history
gr-pager/apps/usrp_rx_flex.grc [new file with mode: 0644] patch | blob
gr-pager/apps/usrp_rx_flex.py [new file with mode: 0755] patch | blob

diff --git a/gr-pager/apps/Makefile.am b/gr-pager/apps/Makefile.am
index 64a79f5946a8773f65769a7a4101cf8139fe6083..0e9f1215bfed07ab464208a5dedf78b288800108 100644 (file)
--- a/gr-pager/apps/Makefile.am
+++ b/gr-pager/apps/Makefile.am
@@ -26,6 +26,10 @@ if PYTHON
 dist_bin_SCRIPTS = \
        usrp_flex.py \
        usrp_flex_all.py \
-       usrp_flex_band.py 
-
+       usrp_flex_band.py \
+       usrp_rx_flex.py
 endif
+
+EXTRA_DIST = \
+       usrp_rx_flex.grc
+
diff --git a/gr-pager/apps/usrp_rx_flex.grc b/gr-pager/apps/usrp_rx_flex.grc
new file mode 100644 (file)
index 0000000..c324eaa
--- /dev/null
+++ b/gr-pager/apps/usrp_rx_flex.grc
@@ -0,0 +1,1063 @@
+<?xml version='1.0' encoding='ASCII'?>
+<flow_graph>
+  <timestamp>Sun Oct 11 14:19:38 2009</timestamp>
+  <block>
+    <key>options</key>
+    <param>
+      <key>id</key>
+      <value>usrp_rx_flex</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>USRP FLEX Pager Receiver (Single Channel)</value>
+    </param>
+    <param>
+      <key>author</key>
+      <value></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>adc_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>64e6</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(225, 12)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>decim</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>16</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(310, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>sample_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>adc_rate/decim</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(382, 12)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>channel_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>25e3</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(751, 13)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>freq</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>band_freq+(channel-61)*25e3</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(480, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>channel_decim</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>int(sample_rate/channel_rate)</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(854, 11)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>channel_taps</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>firdes.low_pass(10**1, sample_rate, 10e3, 2.5e3)</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(588, 12)</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>FLEX Spectrum</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>sample_rate</value>
+    </param>
+    <param>
+      <key>baseband_freq</key>
+      <value>band_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>65536</value>
+    </param>
+    <param>
+      <key>fft_size</key>
+      <value>1024</value>
+    </param>
+    <param>
+      <key>fft_rate</key>
+      <value>30</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>grid_pos</key>
+      <value>0,0,1,1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value>displays,0</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(34, 508)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>180</value>
+    </param>
+  </block>
+  <block>
+    <key>usrp_simple_source_x</key>
+    <param>
+      <key>id</key>
+      <value>usrp_source</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>format</key>
+      <value></value>
+    </param>
+    <param>
+      <key>which</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>decimation</key>
+      <value>decim</value>
+    </param>
+    <param>
+      <key>frequency</key>
+      <value>band_freq</value>
+    </param>
+    <param>
+      <key>lo_offset</key>
+      <value>float('inf')</value>
+    </param>
+    <param>
+      <key>gain</key>
+      <value>rx_gain</value>
+    </param>
+    <param>
+      <key>side</key>
+      <value>A</value>
+    </param>
+    <param>
+      <key>rx_ant</key>
+      <value>RXA</value>
+    </param>
+    <param>
+      <key>hb_filters</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(32, 734)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>import</key>
+    <param>
+      <key>id</key>
+      <value>import_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>import</key>
+      <value>import os</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(10, 76)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>os.environ["HOME"]+"/.gnuradio/config.conf"</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(9, 133)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>saved_band_freq</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>930.5125e6</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>real</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>gr-pager</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>band_center</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>band_freq</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(228, 311)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>saved_offset</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>real</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>gr-pager</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>freq_offset</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>offset</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(547, 312)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>saved_rx_gain</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>40</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>int</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>gr-pager</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>rx_gain</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>rx_gain</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(706, 312)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>gr_freq_xlating_fir_filter_xxx</key>
+    <param>
+      <key>id</key>
+      <value>gr_freq_xlating_fir_filter_xxx_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>ccc</value>
+    </param>
+    <param>
+      <key>decim</key>
+      <value>channel_decim</value>
+    </param>
+    <param>
+      <key>taps</key>
+      <value>channel_taps</value>
+    </param>
+    <param>
+      <key>center_freq</key>
+      <value>band_freq-freq+offset</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>sample_rate</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(321, 750)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>notebook</key>
+    <param>
+      <key>id</key>
+      <value>displays</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>['RX Spectrum','Baseband']</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>1, 0, 1, 5</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(9, 209)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_slider</key>
+    <param>
+      <key>id</key>
+      <value>rx_gain</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Analog Gain</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>saved_rx_gain</value>
+    </param>
+    <param>
+      <key>min</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>max</key>
+      <value>100</value>
+    </param>
+    <param>
+      <key>num_steps</key>
+      <value>100</value>
+    </param>
+    <param>
+      <key>style</key>
+      <value>wx.SL_HORIZONTAL</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 4, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(658, 122)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_slider</key>
+    <param>
+      <key>id</key>
+      <value>offset</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Freq. Offset</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>saved_offset</value>
+    </param>
+    <param>
+      <key>min</key>
+      <value>-10e3</value>
+    </param>
+    <param>
+      <key>max</key>
+      <value>10e3</value>
+    </param>
+    <param>
+      <key>num_steps</key>
+      <value>100</value>
+    </param>
+    <param>
+      <key>style</key>
+      <value>wx.SL_HORIZONTAL</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 3, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(518, 118)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_static_text</key>
+    <param>
+      <key>id</key>
+      <value>freq_text</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Ch. Freq</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>freq</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>0, 2, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(801, 124)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_slider</key>
+    <param>
+      <key>id</key>
+      <value>channel</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Channel</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>saved_channel</value>
+    </param>
+    <param>
+      <key>min</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>max</key>
+      <value>120</value>
+    </param>
+    <param>
+      <key>num_steps</key>
+      <value>119</value>
+    </param>
+    <param>
+      <key>style</key>
+      <value>wx.SL_HORIZONTAL</value>
+    </param>
+    <param>
+      <key>converver</key>
+      <value>float_converter</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 1, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(376, 120)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_text_box</key>
+    <param>
+      <key>id</key>
+      <value>band_freq</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Band Freq.</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>saved_band_freq</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>0, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(225, 121)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>wxgui_scopesink2</key>
+    <param>
+      <key>id</key>
+      <value>wxgui_scopesink2_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>Baseband Waveform</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>channel_rate</value>
+    </param>
+    <param>
+      <key>v_scale</key>
+      <value>1e3</value>
+    </param>
+    <param>
+      <key>t_scale</key>
+      <value>20.0/channel_rate</value>
+    </param>
+    <param>
+      <key>ac_couple</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>xy_mode</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>num_inputs</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>0, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value>displays, 1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(593, 551)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>wxgui_fftsink2</key>
+    <param>
+      <key>id</key>
+      <value>wxgui_fftsink2_1</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>Channel Spectrum</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>channel_rate</value>
+    </param>
+    <param>
+      <key>baseband_freq</key>
+      <value>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>65536</value>
+    </param>
+    <param>
+      <key>fft_size</key>
+      <value>1024</value>
+    </param>
+    <param>
+      <key>fft_rate</key>
+      <value>30</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>grid_pos</key>
+      <value>1, 0, 1, 1</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value>displays, 0</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(344, 511)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>180</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_config</key>
+    <param>
+      <key>id</key>
+      <value>saved_channel</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>25</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>int</value>
+    </param>
+    <param>
+      <key>config_file</key>
+      <value>config_filename</value>
+    </param>
+    <param>
+      <key>section</key>
+      <value>gr-pager</value>
+    </param>
+    <param>
+      <key>option</key>
+      <value>channel</value>
+    </param>
+    <param>
+      <key>writeback</key>
+      <value>channel</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(387, 312)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <connection>
+    <source_block_id>gr_freq_xlating_fir_filter_xxx_0</source_block_id>
+    <sink_block_id>wxgui_fftsink2_1</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>usrp_source</source_block_id>
+    <sink_block_id>gr_freq_xlating_fir_filter_xxx_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>usrp_source</source_block_id>
+    <sink_block_id>wxgui_fftsink2_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>gr_freq_xlating_fir_filter_xxx_0</source_block_id>
+    <sink_block_id>wxgui_scopesink2_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+</flow_graph>
diff --git a/gr-pager/apps/usrp_rx_flex.py b/gr-pager/apps/usrp_rx_flex.py
new file mode 100755 (executable)
index 0000000..7d63452
--- /dev/null
+++ b/gr-pager/apps/usrp_rx_flex.py
@@ -0,0 +1,357 @@
+#!/usr/bin/env python
+##################################################
+# Gnuradio Python Flow Graph
+# Title: USRP FLEX Pager Receiver (Single Channel)
+# Generated: Sun Oct 11 14:15:06 2009
+##################################################
+
+from gnuradio import eng_notation
+from gnuradio import gr
+from gnuradio.eng_option import eng_option
+from gnuradio.gr import firdes
+from gnuradio.wxgui import fftsink2
+from gnuradio.wxgui import forms
+from gnuradio.wxgui import scopesink2
+from grc_gnuradio import usrp as grc_usrp
+from grc_gnuradio import wxgui as grc_wxgui
+from optparse import OptionParser
+import ConfigParser
+import os
+import wx
+
+class usrp_rx_flex(grc_wxgui.top_block_gui):
+
+       def __init__(self):
+               grc_wxgui.top_block_gui.__init__(self, title="USRP FLEX Pager Receiver (Single Channel)")
+
+               ##################################################
+               # Variables
+               ##################################################
+               self.config_filename = config_filename = os.environ["HOME"]+"/.gnuradio/config.conf"
+               self._saved_channel_config = ConfigParser.ConfigParser()
+               self._saved_channel_config.read(config_filename)
+               try: saved_channel = self._saved_channel_config.getint("gr-pager", "channel")
+               except: saved_channel = 25
+               self.saved_channel = saved_channel
+               self._saved_band_freq_config = ConfigParser.ConfigParser()
+               self._saved_band_freq_config.read(config_filename)
+               try: saved_band_freq = self._saved_band_freq_config.getfloat("gr-pager", "band_center")
+               except: saved_band_freq = 930.5125e6
+               self.saved_band_freq = saved_band_freq
+               self.decim = decim = 16
+               self.channel = channel = saved_channel
+               self.band_freq = band_freq = saved_band_freq
+               self.adc_rate = adc_rate = 64e6
+               self._saved_rx_gain_config = ConfigParser.ConfigParser()
+               self._saved_rx_gain_config.read(config_filename)
+               try: saved_rx_gain = self._saved_rx_gain_config.getint("gr-pager", "rx_gain")
+               except: saved_rx_gain = 40
+               self.saved_rx_gain = saved_rx_gain
+               self._saved_offset_config = ConfigParser.ConfigParser()
+               self._saved_offset_config.read(config_filename)
+               try: saved_offset = self._saved_offset_config.getfloat("gr-pager", "freq_offset")
+               except: saved_offset = 0
+               self.saved_offset = saved_offset
+               self.sample_rate = sample_rate = adc_rate/decim
+               self.freq = freq = band_freq+(channel-61)*25e3
+               self.channel_rate = channel_rate = 25e3
+               self.rx_gain = rx_gain = saved_rx_gain
+               self.offset = offset = saved_offset
+               self.freq_text = freq_text = freq
+               self.channel_taps = channel_taps = firdes.low_pass(10**1, sample_rate, 10e3, 2.5e3)
+               self.channel_decim = channel_decim = int(sample_rate/channel_rate)
+
+               ##################################################
+               # Notebooks
+               ##################################################
+               self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
+               self.displays.AddPage(grc_wxgui.Panel(self.displays), "RX Spectrum")
+               self.displays.AddPage(grc_wxgui.Panel(self.displays), "Baseband")
+               self.GridAdd(self.displays, 1, 0, 1, 5)
+
+               ##################################################
+               # Controls
+               ##################################################
+               _channel_sizer = wx.BoxSizer(wx.VERTICAL)
+               self._channel_text_box = forms.text_box(
+                       parent=self.GetWin(),
+                       sizer=_channel_sizer,
+                       value=self.channel,
+                       callback=self.set_channel,
+                       label="Channel",
+                       converter=forms.float_converter(),
+                       proportion=0,
+               )
+               self._channel_slider = forms.slider(
+                       parent=self.GetWin(),
+                       sizer=_channel_sizer,
+                       value=self.channel,
+                       callback=self.set_channel,
+                       minimum=1,
+                       maximum=120,
+                       num_steps=119,
+                       style=wx.SL_HORIZONTAL,
+                       cast=float,
+                       proportion=1,
+               )
+               self.GridAdd(_channel_sizer, 0, 1, 1, 1)
+               self._band_freq_text_box = forms.text_box(
+                       parent=self.GetWin(),
+                       value=self.band_freq,
+                       callback=self.set_band_freq,
+                       label="Band Freq.",
+                       converter=forms.float_converter(),
+               )
+               self.GridAdd(self._band_freq_text_box, 0, 0, 1, 1)
+               _rx_gain_sizer = wx.BoxSizer(wx.VERTICAL)
+               self._rx_gain_text_box = forms.text_box(
+                       parent=self.GetWin(),
+                       sizer=_rx_gain_sizer,
+                       value=self.rx_gain,
+                       callback=self.set_rx_gain,
+                       label="Analog Gain",
+                       converter=forms.float_converter(),
+                       proportion=0,
+               )
+               self._rx_gain_slider = forms.slider(
+                       parent=self.GetWin(),
+                       sizer=_rx_gain_sizer,
+                       value=self.rx_gain,
+                       callback=self.set_rx_gain,
+                       minimum=0,
+                       maximum=100,
+                       num_steps=100,
+                       style=wx.SL_HORIZONTAL,
+                       cast=float,
+                       proportion=1,
+               )
+               self.GridAdd(_rx_gain_sizer, 0, 4, 1, 1)
+               _offset_sizer = wx.BoxSizer(wx.VERTICAL)
+               self._offset_text_box = forms.text_box(
+                       parent=self.GetWin(),
+                       sizer=_offset_sizer,
+                       value=self.offset,
+                       callback=self.set_offset,
+                       label="Freq. Offset",
+                       converter=forms.float_converter(),
+                       proportion=0,
+               )
+               self._offset_slider = forms.slider(
+                       parent=self.GetWin(),
+                       sizer=_offset_sizer,
+                       value=self.offset,
+                       callback=self.set_offset,
+                       minimum=-10e3,
+                       maximum=10e3,
+                       num_steps=100,
+                       style=wx.SL_HORIZONTAL,
+                       cast=float,
+                       proportion=1,
+               )
+               self.GridAdd(_offset_sizer, 0, 3, 1, 1)
+               self._freq_text_static_text = forms.static_text(
+                       parent=self.GetWin(),
+                       value=self.freq_text,
+                       callback=self.set_freq_text,
+                       label="Ch. Freq",
+                       converter=forms.float_converter(),
+               )
+               self.GridAdd(self._freq_text_static_text, 0, 2, 1, 1)
+
+               ##################################################
+               # Blocks
+               ##################################################
+               self.gr_freq_xlating_fir_filter_xxx_0 = gr.freq_xlating_fir_filter_ccc(channel_decim, (channel_taps), band_freq-freq+offset, sample_rate)
+               self.usrp_source = grc_usrp.simple_source_c(which=0, side="A", rx_ant="RXA")
+               self.usrp_source.set_decim_rate(decim)
+               self.usrp_source.set_frequency(band_freq, verbose=True)
+               self.usrp_source.set_gain(rx_gain)
+               self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
+                       self.displays.GetPage(0).GetWin(),
+                       baseband_freq=band_freq,
+                       y_per_div=10,
+                       y_divs=10,
+                       ref_level=0,
+                       ref_scale=65536,
+                       sample_rate=sample_rate,
+                       fft_size=1024,
+                       fft_rate=30,
+                       average=False,
+                       avg_alpha=None,
+                       title="FLEX Spectrum",
+                       peak_hold=False,
+               )
+               self.displays.GetPage(0).GridAdd(self.wxgui_fftsink2_0.win, 0, 0, 1, 1)
+               self.wxgui_fftsink2_1 = fftsink2.fft_sink_c(
+                       self.displays.GetPage(0).GetWin(),
+                       baseband_freq=freq,
+                       y_per_div=10,
+                       y_divs=10,
+                       ref_level=0,
+                       ref_scale=65536,
+                       sample_rate=channel_rate,
+                       fft_size=1024,
+                       fft_rate=30,
+                       average=False,
+                       avg_alpha=None,
+                       title="Channel Spectrum",
+                       peak_hold=False,
+               )
+               self.displays.GetPage(0).GridAdd(self.wxgui_fftsink2_1.win, 1, 0, 1, 1)
+               self.wxgui_scopesink2_0 = scopesink2.scope_sink_c(
+                       self.displays.GetPage(1).GetWin(),
+                       title="Baseband Waveform",
+                       sample_rate=channel_rate,
+                       v_scale=1e3,
+                       t_scale=20.0/channel_rate,
+                       ac_couple=False,
+                       xy_mode=False,
+                       num_inputs=1,
+               )
+               self.displays.GetPage(1).GridAdd(self.wxgui_scopesink2_0.win, 0, 0, 1, 1)
+
+               ##################################################
+               # Connections
+               ##################################################
+               self.connect((self.gr_freq_xlating_fir_filter_xxx_0, 0), (self.wxgui_fftsink2_1, 0))
+               self.connect((self.usrp_source, 0), (self.gr_freq_xlating_fir_filter_xxx_0, 0))
+               self.connect((self.usrp_source, 0), (self.wxgui_fftsink2_0, 0))
+               self.connect((self.gr_freq_xlating_fir_filter_xxx_0, 0), (self.wxgui_scopesink2_0, 0))
+
+       def set_config_filename(self, config_filename):
+               self.config_filename = config_filename
+               self._saved_band_freq_config = ConfigParser.ConfigParser()
+               self._saved_band_freq_config.read(self.config_filename)
+               if not self._saved_band_freq_config.has_section("gr-pager"):
+                       self._saved_band_freq_config.add_section("gr-pager")
+               self._saved_band_freq_config.set("gr-pager", "band_center", str(self.band_freq))
+               self._saved_band_freq_config.write(open(self.config_filename, 'w'))
+               self._saved_channel_config = ConfigParser.ConfigParser()
+               self._saved_channel_config.read(self.config_filename)
+               if not self._saved_channel_config.has_section("gr-pager"):
+                       self._saved_channel_config.add_section("gr-pager")
+               self._saved_channel_config.set("gr-pager", "channel", str(self.channel))
+               self._saved_channel_config.write(open(self.config_filename, 'w'))
+               self._saved_offset_config = ConfigParser.ConfigParser()
+               self._saved_offset_config.read(self.config_filename)
+               if not self._saved_offset_config.has_section("gr-pager"):
+                       self._saved_offset_config.add_section("gr-pager")
+               self._saved_offset_config.set("gr-pager", "freq_offset", str(self.offset))
+               self._saved_offset_config.write(open(self.config_filename, 'w'))
+               self._saved_rx_gain_config = ConfigParser.ConfigParser()
+               self._saved_rx_gain_config.read(self.config_filename)
+               if not self._saved_rx_gain_config.has_section("gr-pager"):
+                       self._saved_rx_gain_config.add_section("gr-pager")
+               self._saved_rx_gain_config.set("gr-pager", "rx_gain", str(self.rx_gain))
+               self._saved_rx_gain_config.write(open(self.config_filename, 'w'))
+
+       def set_saved_channel(self, saved_channel):
+               self.saved_channel = saved_channel
+               self.set_channel(self.saved_channel)
+
+       def set_saved_band_freq(self, saved_band_freq):
+               self.saved_band_freq = saved_band_freq
+               self.set_band_freq(self.saved_band_freq)
+
+       def set_decim(self, decim):
+               self.decim = decim
+               self.set_sample_rate(self.adc_rate/self.decim)
+               self.usrp_source.set_decim_rate(self.decim)
+
+       def set_channel(self, channel):
+               self.channel = channel
+               self.set_freq(self.band_freq+(self.channel-61)*25e3)
+               self._saved_channel_config = ConfigParser.ConfigParser()
+               self._saved_channel_config.read(self.config_filename)
+               if not self._saved_channel_config.has_section("gr-pager"):
+                       self._saved_channel_config.add_section("gr-pager")
+               self._saved_channel_config.set("gr-pager", "channel", str(self.channel))
+               self._saved_channel_config.write(open(self.config_filename, 'w'))
+               self._channel_slider.set_value(self.channel)
+               self._channel_text_box.set_value(self.channel)
+
+       def set_band_freq(self, band_freq):
+               self.band_freq = band_freq
+               self.set_freq(self.band_freq+(self.channel-61)*25e3)
+               self.wxgui_fftsink2_0.set_baseband_freq(self.band_freq)
+               self.usrp_source.set_frequency(self.band_freq)
+               self._saved_band_freq_config = ConfigParser.ConfigParser()
+               self._saved_band_freq_config.read(self.config_filename)
+               if not self._saved_band_freq_config.has_section("gr-pager"):
+                       self._saved_band_freq_config.add_section("gr-pager")
+               self._saved_band_freq_config.set("gr-pager", "band_center", str(self.band_freq))
+               self._saved_band_freq_config.write(open(self.config_filename, 'w'))
+               self.gr_freq_xlating_fir_filter_xxx_0.set_center_freq(self.band_freq-self.freq+self.offset)
+               self._band_freq_text_box.set_value(self.band_freq)
+
+       def set_adc_rate(self, adc_rate):
+               self.adc_rate = adc_rate
+               self.set_sample_rate(self.adc_rate/self.decim)
+
+       def set_saved_rx_gain(self, saved_rx_gain):
+               self.saved_rx_gain = saved_rx_gain
+               self.set_rx_gain(self.saved_rx_gain)
+
+       def set_saved_offset(self, saved_offset):
+               self.saved_offset = saved_offset
+               self.set_offset(self.saved_offset)
+
+       def set_sample_rate(self, sample_rate):
+               self.sample_rate = sample_rate
+               self.set_channel_decim(int(self.sample_rate/self.channel_rate))
+               self.set_channel_taps(firdes.low_pass(10**1, self.sample_rate, 10e3, 2.5e3))
+               self.wxgui_fftsink2_0.set_sample_rate(self.sample_rate)
+
+       def set_freq(self, freq):
+               self.freq = freq
+               self.wxgui_fftsink2_1.set_baseband_freq(self.freq)
+               self.gr_freq_xlating_fir_filter_xxx_0.set_center_freq(self.band_freq-self.freq+self.offset)
+               self.set_freq_text(self.freq)
+
+       def set_channel_rate(self, channel_rate):
+               self.channel_rate = channel_rate
+               self.set_channel_decim(int(self.sample_rate/self.channel_rate))
+               self.wxgui_fftsink2_1.set_sample_rate(self.channel_rate)
+               self.wxgui_scopesink2_0.set_sample_rate(self.channel_rate)
+
+       def set_rx_gain(self, rx_gain):
+               self.rx_gain = rx_gain
+               self.usrp_source.set_gain(self.rx_gain)
+               self._saved_rx_gain_config = ConfigParser.ConfigParser()
+               self._saved_rx_gain_config.read(self.config_filename)
+               if not self._saved_rx_gain_config.has_section("gr-pager"):
+                       self._saved_rx_gain_config.add_section("gr-pager")
+               self._saved_rx_gain_config.set("gr-pager", "rx_gain", str(self.rx_gain))
+               self._saved_rx_gain_config.write(open(self.config_filename, 'w'))
+               self._rx_gain_slider.set_value(self.rx_gain)
+               self._rx_gain_text_box.set_value(self.rx_gain)
+
+       def set_offset(self, offset):
+               self.offset = offset
+               self._saved_offset_config = ConfigParser.ConfigParser()
+               self._saved_offset_config.read(self.config_filename)
+               if not self._saved_offset_config.has_section("gr-pager"):
+                       self._saved_offset_config.add_section("gr-pager")
+               self._saved_offset_config.set("gr-pager", "freq_offset", str(self.offset))
+               self._saved_offset_config.write(open(self.config_filename, 'w'))
+               self.gr_freq_xlating_fir_filter_xxx_0.set_center_freq(self.band_freq-self.freq+self.offset)
+               self._offset_slider.set_value(self.offset)
+               self._offset_text_box.set_value(self.offset)
+
+       def set_freq_text(self, freq_text):
+               self.freq_text = freq_text
+               self._freq_text_static_text.set_value(self.freq_text)
+
+       def set_channel_taps(self, channel_taps):
+               self.channel_taps = channel_taps
+               self.gr_freq_xlating_fir_filter_xxx_0.set_taps((self.channel_taps))
+
+       def set_channel_decim(self, channel_decim):
+               self.channel_decim = channel_decim
+
+if __name__ == '__main__':
+       parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
+       (options, args) = parser.parse_args()
+       tb = usrp_rx_flex()
+       tb.Run(True)
+
Debian packaging of gnuradio