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<key>id</key> <value>beta</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>label</key> <value>Timing Beta</value> </param> <param> <key>value</key> <value>0</value> </param> <param> <key>min</key> <value>0.0</value> </param> <param> <key>max</key> <value>0.1</value> </param> <param> <key>num_steps</key> <value>1000</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>notebook</key> <value></value> </param> <param> <key>_coordinate</key> <value>(668, 5)</value> </param> <param> <key>_rotation</key> <value>180</value> </param> </block> <block> <key>variable_slider</key> <param> <key>id</key> <value>alpha</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>label</key> <value>Timing Alpha</value> </param> <param> <key>value</key> <value>0</value> </param> 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<value>(-1, 163)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>gr_chunks_to_symbols_xx</key> <param> <key>id</key> <value>gr_chunks_to_symbols_xx</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>in_type</key> <value>byte</value> </param> <param> <key>out_type</key> <value>complex</value> </param> <param> <key>symbol_table</key> <value>const.points()</value> </param> <param> <key>dimension</key> <value>1</value> </param> <param> <key>num_ports</key> <value>1</value> </param> <param> <key>_coordinate</key> <value>(203, 178)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>gr_multiply_const_vxx</key> <param> <key>id</key> <value>gr_multiply_const_vxx_0</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>type</key> <value>complex</value> </param> <param> <key>const</key> <value>sig_amp</value> </param> <param> <key>vlen</key> <value>1</value> </param> <param> <key>_coordinate</key> <value>(651, 186)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>gr_channel_model</key> <param> <key>id</key> <value>gr_channel_model_0</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>noise_voltage</key> <value>noise_amp</value> </param> <param> <key>freq_offset</key> <value>freq_offset</value> </param> <param> <key>epsilon</key> <value>interpratio</value> </param> <param> <key>taps</key> <value>1.0</value> </param> <param> <key>seed</key> <value>42</value> </param> <param> <key>_coordinate</key> <value>(73, 354)</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>True</value> </param> <param> <key>type</key> <value>complex</value> </param> <param> <key>samples_per_second</key> <value>samp_rate</value> </param> <param> <key>vlen</key> <value>1</value> </param> <param> <key>_coordinate</key> <value>(274, 384)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable</key> <param> <key>id</key> <value>sig_amp</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>value</key> <value>1</value> </param> <param> <key>_coordinate</key> <value>(662, 128)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable_slider</key> <param> <key>id</key> <value>interpratio</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>label</key> <value>Timing Offset</value> </param> <param> <key>value</key> <value>1.00</value> </param> <param> <key>min</key> <value>0.99</value> </param> <param> <key>max</key> <value>1.01</value> </param> <param> <key>num_steps</key> <value>1000</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>notebook</key> <value></value> </param> <param> <key>_coordinate</key> <value>(-1, 465)</value> </param> <param> <key>_rotation</key> <value>180</value> </param> </block> <block> <key>variable_slider</key> <param> <key>id</key> <value>noise_amp</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>label</key> <value>Channel Noise</value> </param> <param> <key>value</key> <value>0</value> </param> <param> <key>min</key> <value>0</value> </param> <param> <key>max</key> <value>1.0</value> </param> <param> <key>num_steps</key> <value>1000</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>notebook</key> <value></value> </param> <param> <key>_coordinate</key> <value>(114, 465)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable_slider</key> <param> <key>id</key> <value>freq_offset</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>label</key> <value>Frequency Offset</value> </param> <param> <key>value</key> <value>0</value> </param> <param> <key>min</key> <value>-0.5</value> </param> <param> <key>max</key> <value>0.5</value> </param> <param> <key>num_steps</key> <value>1000</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>notebook</key> <value></value> </param> <param> <key>_coordinate</key> <value>(236, 465)</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>32000</value> </param> <param> <key>_coordinate</key> <value>(282, 324)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable</key> <param> <key>id</key> <value>const</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>value</key> <value>digital.qpsk_constellation()</value> </param> <param> <key>_coordinate</key> <value>(206, 116)</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>from gnuradio import digital</value> </param> <param> <key>_coordinate</key> <value>(-1, 61)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable</key> <param> <key>id</key> <value>rolloff</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>value</key> <value>.35</value> </param> <param> <key>_coordinate</key> <value>(459, 262)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>variable</key> <param> <key>id</key> <value>nfilts</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>value</key> <value>32</value> </param> <param> <key>_coordinate</key> <value>(539, 262)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>gr_pfb_clock_sync_xxx</key> <param> <key>id</key> <value>gr_pfb_clock_sync_xxx_0</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>type</key> <value>ccf</value> </param> <param> <key>sps</key> <value>spb</value> </param> <param> <key>alpha</key> <value>alpha</value> </param> <param> <key>beta</key> <value>beta</value> </param> <param> <key>taps</key> <value>firdes.root_raised_cosine(nfilts, nfilts*spb, 1.0, rolloff, 44*nfilts)</value> </param> <param> <key>filter_size</key> <value>nfilts</value> </param> <param> <key>init_phase</key> <value>16</value> </param> <param> <key>max_dev</key> <value>1.5</value> </param> <param> <key>osps</key> <value>1</value> </param> <param> <key>_coordinate</key> <value>(444, 331)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>blks2_pfb_arb_resampler_ccf</key> <param> <key>id</key> <value>blks2_pfb_arb_resampler_ccf_0</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>rate</key> <value>spb</value> </param> <param> <key>taps</key> <value>firdes.root_raised_cosine(nfilts, nfilts, 1.0, rolloff, 44*nfilts)</value> </param> <param> <key>size</key> <value>nfilts</value> </param> <param> <key>_coordinate</key> <value>(438, 171)</value> </param> <param> <key>_rotation</key> <value>0</value> </param> </block> <block> <key>wxgui_scopesink2</key> <param> <key>id</key> <value>wxgui_scopesink2_0_0_1</value> </param> <param> <key>_enabled</key> <value>True</value> </param> <param> <key>type</key> <value>complex</value> </param> <param> <key>title</key> <value>Error</value> </param> <param> <key>samp_rate</key> <value>samp_rate</value> </param> <param> <key>v_scale</key> <value>.5</value> </param> <param> <key>v_offset</key> <value>0</value> </param> <param> <key>t_scale</key> <value>0</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></value> </param> <param> <key>notebook</key> <value>notebook_0,3</value> </param> <param> <key>trig_mode</key> <value>gr.gr_TRIG_MODE_AUTO</value> </param> <param> <key>y_axis_label</key> <value>Counts</value> </param> <param> 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