--- /dev/null
+<?xml version='1.0' encoding='ASCII'?>
+<flow_graph>
+ <timestamp>Wed Dec 16 09:47:16 2009</timestamp>
+ <block>
+ <key>options</key>
+ <param>
+ <key>id</key>
+ <value>usrp_rx_lrit</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>title</key>
+ <value>USRP LRIT Receiver</value>
+ </param>
+ <param>
+ <key>author</key>
+ <value></value>
+ </param>
+ <param>
+ <key>description</key>
+ <value></value>
+ </param>
+ <param>
+ <key>window_size</key>
+ <value>4095, 4095</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>sample_rate</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>64e6/decim</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(245, 9)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable</key>
+ <param>
+ <key>id</key>
+ <value>symbol_rate</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>293e3</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(351, 9)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable</key>
+ <param>
+ <key>id</key>
+ <value>sps</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>sample_rate/symbol_rate</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(456, 9)</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>(9, 83)</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>(10, 142)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable_text_box</key>
+ <param>
+ <key>id</key>
+ <value>freq</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>label</key>
+ <value>Frequency</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>saved_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>(247, 149)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable_config</key>
+ <param>
+ <key>id</key>
+ <value>saved_freq</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>1691e6</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>'usrp_rx_lrit'</value>
+ </param>
+ <param>
+ <key>option</key>
+ <value>'freq'</value>
+ </param>
+ <param>
+ <key>writeback</key>
+ <value>freq</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(246, 299)</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>'usrp_rx_lrit'</value>
+ </param>
+ <param>
+ <key>option</key>
+ <value>'offset'</value>
+ </param>
+ <param>
+ <key>writeback</key>
+ <value>offset</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(406, 300)</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>Offset</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>saved_offset</value>
+ </param>
+ <param>
+ <key>min</key>
+ <value>-50e3</value>
+ </param>
+ <param>
+ <key>max</key>
+ <value>50e3</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, 1, 1, 1</value>
+ </param>
+ <param>
+ <key>notebook</key>
+ <value></value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(390, 149)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable_slider</key>
+ <param>
+ <key>id</key>
+ <value>costas_alpha</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>label</key>
+ <value>Costas Alpha</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>saved_costas_alpha</value>
+ </param>
+ <param>
+ <key>min</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>max</key>
+ <value>0.5</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>1, 1, 1, 1</value>
+ </param>
+ <param>
+ <key>notebook</key>
+ <value></value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(813, 152)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable_slider</key>
+ <param>
+ <key>id</key>
+ <value>gain_mu</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>label</key>
+ <value>Gain Mu</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>saved_gain_mu</value>
+ </param>
+ <param>
+ <key>min</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>max</key>
+ <value>0.5</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>1, 2, 1, 1</value>
+ </param>
+ <param>
+ <key>notebook</key>
+ <value></value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(957, 151)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable_config</key>
+ <param>
+ <key>id</key>
+ <value>saved_gain</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>33</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>'usrp_rx_lrit'</value>
+ </param>
+ <param>
+ <key>option</key>
+ <value>'gain'</value>
+ </param>
+ <param>
+ <key>writeback</key>
+ <value>gain</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(565, 300)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable_config</key>
+ <param>
+ <key>id</key>
+ <value>saved_decim</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>160</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>'usrp_rx_lrit'</value>
+ </param>
+ <param>
+ <key>option</key>
+ <value>'decim'</value>
+ </param>
+ <param>
+ <key>writeback</key>
+ <value>decim</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(725, 300)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable_text_box</key>
+ <param>
+ <key>id</key>
+ <value>decim</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>label</key>
+ <value>Decim</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>saved_decim</value>
+ </param>
+ <param>
+ <key>converver</key>
+ <value>int_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>(672, 151)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable_config</key>
+ <param>
+ <key>id</key>
+ <value>saved_costas_alpha</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>0.005</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>'usrp_rx_lrit'</value>
+ </param>
+ <param>
+ <key>option</key>
+ <value>'costas_alpha'</value>
+ </param>
+ <param>
+ <key>writeback</key>
+ <value>costas_alpha</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(885, 298)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable_config</key>
+ <param>
+ <key>id</key>
+ <value>saved_gain_mu</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>0.005</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>'usrp_rx_lrit'</value>
+ </param>
+ <param>
+ <key>option</key>
+ <value>'gain_mu'</value>
+ </param>
+ <param>
+ <key>writeback</key>
+ <value>gain_mu</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(1046, 298)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable_config</key>
+ <param>
+ <key>id</key>
+ <value>side</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>'A'</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>string</value>
+ </param>
+ <param>
+ <key>config_file</key>
+ <value>config_filename</value>
+ </param>
+ <param>
+ <key>section</key>
+ <value>'usrp_rx_lrit'</value>
+ </param>
+ <param>
+ <key>option</key>
+ <value>'side'</value>
+ </param>
+ <param>
+ <key>writeback</key>
+ <value>side</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(1102, 152)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>gr_agc_xx</key>
+ <param>
+ <key>id</key>
+ <value>gr_agc_xx_0</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>complex</value>
+ </param>
+ <param>
+ <key>rate</key>
+ <value>1e-6</value>
+ </param>
+ <param>
+ <key>reference</key>
+ <value>1.0</value>
+ </param>
+ <param>
+ <key>gain</key>
+ <value>1.0/32767.0</value>
+ </param>
+ <param>
+ <key>max_gain</key>
+ <value>1.0</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(286, 729)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>wxgui_scopesink2</key>
+ <param>
+ <key>id</key>
+ <value>rx_waveform</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>complex</value>
+ </param>
+ <param>
+ <key>title</key>
+ <value>RX Waveform</value>
+ </param>
+ <param>
+ <key>samp_rate</key>
+ <value>sample_rate</value>
+ </param>
+ <param>
+ <key>v_scale</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>v_offset</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>t_scale</key>
+ <value>20.0/sample_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>win_size</key>
+ <value></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>(281, 862)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>wxgui_fftsink2</key>
+ <param>
+ <key>id</key>
+ <value>rx_spectrum</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>complex</value>
+ </param>
+ <param>
+ <key>title</key>
+ <value>RX Spectrum</value>
+ </param>
+ <param>
+ <key>samp_rate</key>
+ <value>sample_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>50</value>
+ </param>
+ <param>
+ <key>ref_scale</key>
+ <value>2.0</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>win</key>
+ <value>None</value>
+ </param>
+ <param>
+ <key>win_size</key>
+ <value></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>(280, 468)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>root_raised_cosine_filter</key>
+ <param>
+ <key>id</key>
+ <value>root_raised_cosine_filter_0</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <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>sample_rate</value>
+ </param>
+ <param>
+ <key>sym_rate</key>
+ <value>symbol_rate</value>
+ </param>
+ <param>
+ <key>alpha</key>
+ <value>0.25</value>
+ </param>
+ <param>
+ <key>ntaps</key>
+ <value>int(11*sample_rate/symbol_rate)</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(472, 713)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>wxgui_scopesink2</key>
+ <param>
+ <key>id</key>
+ <value>rrc_waveform</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>complex</value>
+ </param>
+ <param>
+ <key>title</key>
+ <value>RRC Waveform</value>
+ </param>
+ <param>
+ <key>samp_rate</key>
+ <value>sample_rate</value>
+ </param>
+ <param>
+ <key>v_scale</key>
+ <value>0.5</value>
+ </param>
+ <param>
+ <key>v_offset</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>t_scale</key>
+ <value>20.0/sample_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>win_size</key>
+ <value></value>
+ </param>
+ <param>
+ <key>grid_pos</key>
+ <value>1, 0, 1, 1</value>
+ </param>
+ <param>
+ <key>notebook</key>
+ <value>displays, 1</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(768, 866)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>wxgui_fftsink2</key>
+ <param>
+ <key>id</key>
+ <value>rrc_spectrum</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>complex</value>
+ </param>
+ <param>
+ <key>title</key>
+ <value>RRC Spectrum</value>
+ </param>
+ <param>
+ <key>samp_rate</key>
+ <value>sample_rate</value>
+ </param>
+ <param>
+ <key>baseband_freq</key>
+ <value>freq+offset</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>-15</value>
+ </param>
+ <param>
+ <key>ref_scale</key>
+ <value>2.0</value>
+ </param>
+ <param>
+ <key>fft_size</key>
+ <value>1024</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, 1</value>
+ </param>
+ <param>
+ <key>notebook</key>
+ <value>displays, 1</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(767, 499)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>gr_costas_loop_cc</key>
+ <param>
+ <key>id</key>
+ <value>costas</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>alpha</key>
+ <value>costas_alpha</value>
+ </param>
+ <param>
+ <key>beta</key>
+ <value>(costas_alpha**2.0)/4.0</value>
+ </param>
+ <param>
+ <key>max_freq</key>
+ <value>50e-6*sps</value>
+ </param>
+ <param>
+ <key>min_freq</key>
+ <value>-50e-6*sps</value>
+ </param>
+ <param>
+ <key>order</key>
+ <value>2</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(767, 721)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>wxgui_fftsink2</key>
+ <param>
+ <key>id</key>
+ <value>costas_spectrum</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>complex</value>
+ </param>
+ <param>
+ <key>title</key>
+ <value>PLL Spectrum</value>
+ </param>
+ <param>
+ <key>samp_rate</key>
+ <value>sample_rate</value>
+ </param>
+ <param>
+ <key>baseband_freq</key>
+ <value>freq+offset</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>-15</value>
+ </param>
+ <param>
+ <key>ref_scale</key>
+ <value>2.0</value>
+ </param>
+ <param>
+ <key>fft_size</key>
+ <value>1024</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, 1</value>
+ </param>
+ <param>
+ <key>notebook</key>
+ <value>displays, 2</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(969, 502)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>wxgui_fftsink2</key>
+ <param>
+ <key>id</key>
+ <value>mm_spectrum</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>complex</value>
+ </param>
+ <param>
+ <key>title</key>
+ <value>Bit Sync Spectrum</value>
+ </param>
+ <param>
+ <key>samp_rate</key>
+ <value>symbol_rate</value>
+ </param>
+ <param>
+ <key>baseband_freq</key>
+ <value>0</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>-15</value>
+ </param>
+ <param>
+ <key>ref_scale</key>
+ <value>2.0</value>
+ </param>
+ <param>
+ <key>fft_size</key>
+ <value>1024</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, 1</value>
+ </param>
+ <param>
+ <key>notebook</key>
+ <value>displays, 3</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(1225, 503)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>wxgui_scopesink2</key>
+ <param>
+ <key>id</key>
+ <value>costas_waveform</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>complex</value>
+ </param>
+ <param>
+ <key>title</key>
+ <value>PLL Waveform</value>
+ </param>
+ <param>
+ <key>samp_rate</key>
+ <value>sample_rate</value>
+ </param>
+ <param>
+ <key>v_scale</key>
+ <value>0.5</value>
+ </param>
+ <param>
+ <key>v_offset</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>t_scale</key>
+ <value>20.0/sample_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>win_size</key>
+ <value></value>
+ </param>
+ <param>
+ <key>grid_pos</key>
+ <value>1, 0, 1, 1</value>
+ </param>
+ <param>
+ <key>notebook</key>
+ <value>displays, 2</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(968, 852)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>gr_clock_recovery_mm_xx</key>
+ <param>
+ <key>id</key>
+ <value>mm_sync</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>complex</value>
+ </param>
+ <param>
+ <key>omega</key>
+ <value>sps</value>
+ </param>
+ <param>
+ <key>gain_omega</key>
+ <value>(gain_mu**2)/4.0</value>
+ </param>
+ <param>
+ <key>mu</key>
+ <value>0.5</value>
+ </param>
+ <param>
+ <key>gain_mu</key>
+ <value>gain_mu</value>
+ </param>
+ <param>
+ <key>omega_relative_limit</key>
+ <value>50e-6*sps</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(969, 722)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>wxgui_scopesink2</key>
+ <param>
+ <key>id</key>
+ <value>mm_const</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>complex</value>
+ </param>
+ <param>
+ <key>title</key>
+ <value>Constellation</value>
+ </param>
+ <param>
+ <key>samp_rate</key>
+ <value>symbol_rate</value>
+ </param>
+ <param>
+ <key>v_scale</key>
+ <value>0.5</value>
+ </param>
+ <param>
+ <key>v_offset</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>t_scale</key>
+ <value>20.0/symbol_rate</value>
+ </param>
+ <param>
+ <key>ac_couple</key>
+ <value>False</value>
+ </param>
+ <param>
+ <key>xy_mode</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>num_inputs</key>
+ <value>1</value>
+ </param>
+ <param>
+ <key>win_size</key>
+ <value></value>
+ </param>
+ <param>
+ <key>grid_pos</key>
+ <value>1, 0, 1, 1</value>
+ </param>
+ <param>
+ <key>notebook</key>
+ <value>displays, 3</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(1225, 859)</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>['USRP RX','RRC','PLL','Const']</value>
+ </param>
+ <param>
+ <key>grid_pos</key>
+ <value>2, 0, 1, 3</value>
+ </param>
+ <param>
+ <key>notebook</key>
+ <value></value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(10, 228)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>variable_slider</key>
+ <param>
+ <key>id</key>
+ <value>gain</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>True</value>
+ </param>
+ <param>
+ <key>label</key>
+ <value>Gain</value>
+ </param>
+ <param>
+ <key>value</key>
+ <value>saved_gain</value>
+ </param>
+ <param>
+ <key>min</key>
+ <value>0</value>
+ </param>
+ <param>
+ <key>max</key>
+ <value>115</value>
+ </param>
+ <param>
+ <key>num_steps</key>
+ <value>115</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>1, 0, 1, 1</value>
+ </param>
+ <param>
+ <key>notebook</key>
+ <value></value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(532, 150)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>gr_throttle</key>
+ <param>
+ <key>id</key>
+ <value>gr_throttle_0</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>False</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>complex</value>
+ </param>
+ <param>
+ <key>samples_per_second</key>
+ <value>sample_rate</value>
+ </param>
+ <param>
+ <key>vlen</key>
+ <value>1</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(63, 859)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>gr_file_source</key>
+ <param>
+ <key>id</key>
+ <value>gr_file_source_0</value>
+ </param>
+ <param>
+ <key>_enabled</key>
+ <value>False</value>
+ </param>
+ <param>
+ <key>file</key>
+ <value>lrit.dat</value>
+ </param>
+ <param>
+ <key>type</key>
+ <value>complex</value>
+ </param>
+ <param>
+ <key>repeat</key>
+ <value>False</value>
+ </param>
+ <param>
+ <key>vlen</key>
+ <value>1</value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(36, 943)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <block>
+ <key>usrp_simple_source_x</key>
+ <param>
+ <key>id</key>
+ <value>usrp_simple_source_x_0</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>freq+offset</value>
+ </param>
+ <param>
+ <key>lo_offset</key>
+ <value>float('inf')</value>
+ </param>
+ <param>
+ <key>gain</key>
+ <value>gain</value>
+ </param>
+ <param>
+ <key>side</key>
+ <value>side</value>
+ </param>
+ <param>
+ <key>rx_ant</key>
+ <value>RXA</value>
+ </param>
+ <param>
+ <key>hb_filters</key>
+ <value></value>
+ </param>
+ <param>
+ <key>_coordinate</key>
+ <value>(19, 713)</value>
+ </param>
+ <param>
+ <key>_rotation</key>
+ <value>0</value>
+ </param>
+ </block>
+ <connection>
+ <source_block_id>gr_agc_xx_0</source_block_id>
+ <sink_block_id>root_raised_cosine_filter_0</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>gr_throttle_0</source_block_id>
+ <sink_block_id>gr_agc_xx_0</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>gr_file_source_0</source_block_id>
+ <sink_block_id>gr_throttle_0</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>usrp_simple_source_x_0</source_block_id>
+ <sink_block_id>gr_agc_xx_0</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>usrp_simple_source_x_0</source_block_id>
+ <sink_block_id>rx_spectrum</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>gr_throttle_0</source_block_id>
+ <sink_block_id>rx_spectrum</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>usrp_simple_source_x_0</source_block_id>
+ <sink_block_id>rx_waveform</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>gr_throttle_0</source_block_id>
+ <sink_block_id>rx_waveform</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>root_raised_cosine_filter_0</source_block_id>
+ <sink_block_id>rrc_waveform</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>root_raised_cosine_filter_0</source_block_id>
+ <sink_block_id>rrc_spectrum</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>root_raised_cosine_filter_0</source_block_id>
+ <sink_block_id>costas</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>costas</source_block_id>
+ <sink_block_id>costas_spectrum</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>costas</source_block_id>
+ <sink_block_id>costas_waveform</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>costas</source_block_id>
+ <sink_block_id>mm_sync</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>mm_sync</source_block_id>
+ <sink_block_id>mm_spectrum</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+ <connection>
+ <source_block_id>mm_sync</source_block_id>
+ <sink_block_id>mm_const</sink_block_id>
+ <source_key>0</source_key>
+ <sink_key>0</sink_key>
+ </connection>
+</flow_graph>
projects / debian / gnuradio / blobdiff