<?xml version='1.0' encoding='ASCII'?> <flow_graph> <timestamp>Fri Apr 17 18:23:35 2009</timestamp> <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>64e6/200</value> </param> <param> <key>_coordinate</key> <value>(9, 166)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable</key> <param> <key>id</key> <value>tun_freq</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>value</key> <value>int(100e6)</value> </param> <param> <key>_coordinate</key> <value>(116, 166)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>gr_sig_source_x</key> <param> <key>id</key> <value>gr_sig_source_x</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>type</key> <value>complex</value> </param> <param> <key>samp_rate</key> <value>samp_rate</value> </param> <param> <key>waveform</key> <value>gr.GR_COS_WAVE</value> </param> <param> <key>freq</key> <value>tone1</value> </param> <param> <key>amp</key> <value>tone_ampl</value> </param> <param> <key>offset</key> <value>0</value> </param> <param> <key>_coordinate</key> <value>(258, 20)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>gr_sig_source_x</key> <param> <key>id</key> <value>gr_sig_source_x0</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>type</key> <value>complex</value> </param> <param> <key>samp_rate</key> <value>samp_rate</value> </param> <param> <key>waveform</key> <value>gr.GR_COS_WAVE</value> </param> <param> <key>freq</key> <value>tone2</value> </param> <param> <key>amp</key> <value>tone_ampl</value> </param> <param> <key>offset</key> <value>0</value> </param> <param> <key>_coordinate</key> <value>(255, 179)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>gr_add_xx</key> <param> <key>id</key> <value>gr_add_xx</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>type</key> <value>complex</value> </param> <param> <key>num_inputs</key> <value>3</value> </param> <param> <key>vlen</key> <value>1</value> </param> <param> <key>_coordinate</key> <value>(528, 78)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>parameter</key> <param> <key>id</key> <value>tx_side</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>label</key> <value></value> </param> <param> <key>value</key> <value>A</value> </param> <param> <key>type</key> <value>string</value> </param> <param> <key>_coordinate</key> <value>(688, 384)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>usrp_simple_sink_x</key> <param> <key>id</key> <value>usrp_simple_sink_x</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>interpolation</key> <value>400</value> </param> <param> <key>frequency</key> <value>tun_freq</value> </param> <param> <key>gain</key> <value>0</value> </param> <param> <key>side</key> <value>tx_side</value> </param> <param> <key>transmit</key> <value></value> </param> <param> <key>_coordinate</key> <value>(835, 5)</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</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>200</value> </param> <param> <key>frequency</key> <value>tun_freq</value> </param> <param> <key>gain</key> <value>20</value> </param> <param> <key>side</key> <value>rx_side</value> </param> <param> <key>rx_ant</key> <value>rx_ant</value> </param> <param> <key>hb_filters</key> <value></value> </param> <param> <key>_coordinate</key> <value>(479, 224)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>parameter</key> <param> <key>id</key> <value>rx_ant</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>label</key> <value></value> </param> <param> <key>value</key> <value>RXA</value> </param> <param> <key>type</key> <value>string</value> </param> <param> <key>_coordinate</key> <value>(802, 384)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>wxgui_fftsink2</key> <param> <key>id</key> <value>wxgui_fftsink2</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>0</value> </param> <param> <key>y_per_div</key> <value>10</value> </param> <param> <key>ref_level</key> <value>100</value> </param> <param> <key>fft_size</key> <value>512*2</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>grid_pos</key> <value>1, 2, 2, 4</value> </param> <param> <key>_coordinate</key> <value>(746, 133)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>parameter</key> <param> <key>id</key> <value>rx_side</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>label</key> <value></value> </param> <param> <key>value</key> <value>A</value> </param> <param> <key>type</key> <value>string</value> </param> <param> <key>_coordinate</key> <value>(568, 382)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>gr_noise_source_x</key> <param> <key>id</key> <value>gr_noise_source_x</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>type</key> <value>complex</value> </param> <param> <key>noise_type</key> <value>gr.GR_GAUSSIAN</value> </param> <param> <key>amp</key> <value>noise_ampl</value> </param> <param> <key>seed</key> <value>42</value> </param> <param> <key>_coordinate</key> <value>(276, 312)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable_slider</key> <param> <key>id</key> <value>noise_ampl</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>label</key> <value>Noise Ampl</value> </param> <param> <key>value</key> <value>2000</value> </param> <param> <key>min</key> <value>0</value> </param> <param> <key>max</key> <value>5000</value> </param> <param> <key>num_steps</key> <value>100</value> </param> <param> <key>style</key> <value>wx.SL_VERTICAL</value> </param> <param> <key>converver</key> <value>float_converter</value> </param> <param> <key>grid_pos</key> <value>1, 1, 2, 1</value> </param> <param> <key>_coordinate</key> <value>(20, 243)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable_slider</key> <param> <key>id</key> <value>tone_ampl</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>label</key> <value>Tone Ampl</value> </param> <param> <key>value</key> <value>5000</value> </param> <param> <key>min</key> <value>0</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_VERTICAL</value> </param> <param> <key>converver</key> <value>float_converter</value> </param> <param> <key>grid_pos</key> <value>1, 0, 2, 1</value> </param> <param> <key>_coordinate</key> <value>(28, 437)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable_slider</key> <param> <key>id</key> <value>tone1</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>label</key> <value>Tone 1</value> </param> <param> <key>value</key> <value>50e3</value> </param> <param> <key>min</key> <value>-samp_rate/2</value> </param> <param> <key>max</key> <value>samp_rate/2</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, 0, 1, 4</value> </param> <param> <key>_coordinate</key> <value>(190, 436)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable_slider</key> <param> <key>id</key> <value>tone2</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>label</key> <value>Tone 2</value> </param> <param> <key>value</key> <value>75e3</value> </param> <param> <key>min</key> <value>-samp_rate/2</value> </param> <param> <key>max</key> <value>samp_rate/2</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, 4</value> </param> <param> <key>_coordinate</key> <value>(367, 439)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>options</key> <param> <key>id</key> <value>usrp_two_tone_loopback</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>title</key> <value>USRP Loopback - 2 Tone</value> </param> <param> <key>author</key> <value>Example</value> </param> <param> <key>description</key> <value>Loopback test with basic rx and basic tx</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> <connection> <source_block_id>gr_sig_source_x</source_block_id> <sink_block_id>gr_add_xx</sink_block_id> <source_key>0</source_key> <sink_key>0</sink_key> </connection> <connection> <source_block_id>gr_sig_source_x0</source_block_id> <sink_block_id>gr_add_xx</sink_block_id> <source_key>0</source_key> <sink_key>1</sink_key> </connection> <connection> <source_block_id>gr_noise_source_x</source_block_id> <sink_block_id>gr_add_xx</sink_block_id> <source_key>0</source_key> <sink_key>2</sink_key> </connection> <connection> <source_block_id>usrp_simple_source_x</source_block_id> <sink_block_id>wxgui_fftsink2</sink_block_id> <source_key>0</source_key> <sink_key>0</sink_key> </connection> <connection> <source_block_id>gr_add_xx</source_block_id> <sink_block_id>usrp_simple_sink_x</sink_block_id> <source_key>0</source_key> <sink_key>0</sink_key> </connection> </flow_graph>