<?xml version='1.0' encoding='ASCII'?> <flow_graph> <timestamp>Wed Apr 15 17:30:20 2009</timestamp> <block> <key>options</key> <param> <key>id</key> <value>usrp2_fft</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>title</key> <value>USRP2 FFT Plotter</value> </param> <param> <key>author</key> <value>Example</value> </param> <param> <key>description</key> <value>FFT waveform plot</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>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>100e6/decim</value> </param> <param> <key>_coordinate</key> <value>(10, 170)</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>(24, 267)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable_slider</key> <param> <key>id</key> <value>tun_freq</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>label</key> <value>USRP2 Freq (Hz)</value> </param> <param> <key>value</key> <value>2.45e9</value> </param> <param> <key>min</key> <value>2.4e9</value> </param> <param> <key>max</key> <value>2.5e9</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></value> </param> <param> <key>_coordinate</key> <value>(32, 365)</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>FFT Plot</value> </param> <param> <key>samp_rate</key> <value>samp_rate</value> </param> <param> <key>baseband_freq</key> <value>tun_freq</value> </param> <param> <key>y_per_div</key> <value>10</value> </param> <param> <key>ref_level</key> <value>10</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></value> </param> <param> <key>_coordinate</key> <value>(466, 100)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>usrp2_source_xxxx</key> <param> <key>id</key> <value>usrp2_source_xxxx_0</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>type</key> <value>complex</value> </param> <param> <key>interface</key> <value></value> </param> <param> <key>mac_addr</key> <value></value> </param> <param> <key>decimation</key> <value>decim</value> </param> <param> <key>frequency</key> <value>tun_freq</value> </param> <param> <key>gain</key> <value>0</value> </param> <param> <key>_coordinate</key> <value>(211, 200)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <connection> <source_block_id>usrp2_source_xxxx_0</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>