<?xml version='1.0' encoding='ASCII'?>
<flow_graph>
<timestamp>Sun Mar 17 21:01:36 2013</timestamp>
<block>
<key>options</key>
<param>
<key>id</key>
<value>pfb_sync_test</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>title</key>
<value></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>max_nouts</key>
<value>0</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>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 random, math, cmath</value>
</param>
<param>
<key>_coordinate</key>
<value>(14, 77)</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>300000</value>
</param>
<param>
<key>_coordinate</key>
<value>(14, 124)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>id</key>
<value>graymap</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>value</key>
<value>[[3,1,0,2]]</value>
</param>
<param>
<key>_coordinate</key>
<value>(32, 387)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>id</key>
<value>amps</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>value</key>
<value>[1]</value>
</param>
<param>
<key>_coordinate</key>
<value>(32, 451)</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>(99, 451)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>digital_costas_loop_cc</key>
<param>
<key>id</key>
<value>digital_costas_loop_cc_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>w</key>
<value>6.28/100.0</value>
</param>
<param>
<key>order</key>
<value>4</value>
</param>
<param>
<key>_coordinate</key>
<value>(626, 223)</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>2</value>
</param>
<param>
<key>_coordinate</key>
<value>(105, 126)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>blocks_null_sink</key>
<param>
<key>id</key>
<value>blocks_null_sink_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>complex</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(964, 200)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable_slider</key>
<param>
<key>id</key>
<value>noise</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>value</key>
<value>0.05</value>
</param>
<param>
<key>min</key>
<value>0.00000001</value>
</param>
<param>
<key>max</key>
<value>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></value>
</param>
<param>
<key>notebook</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(281, 406)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable_slider</key>
<param>
<key>id</key>
<value>phase</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>label</key>
<value></value>
</param>
<param>
<key>value</key>
<value>0</value>
</param>
<param>
<key>min</key>
<value>0</value>
</param>
<param>
<key>max</key>
<value>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></value>
</param>
<param>
<key>notebook</key>
<value></value>
</param>
<param>
<key>_coordinate</key>
<value>(167, 405)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>digital_pfb_clock_sync_xxx</key>
<param>
<key>id</key>
<value>digital_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>sps</value>
</param>
<param>
<key>loop_bw</key>
<value>2*3.14/100.0</value>
</param>
<param>
<key>taps</key>
<value>firdes.root_raised_cosine(nfilts, nfilts,1.0/sps, 0.35, int(22*sps*nfilts))</value>
</param>
<param>
<key>filter_size</key>
<value>nfilts</value>
</param>
<param>
<key>init_phase</key>
<value>nfilts/2</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>(322, 231)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>digital_psk_mod</key>
<param>
<key>id</key>
<value>digital_psk_mod_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>constellation_points</key>
<value>4</value>
</param>
<param>
<key>mod_code</key>
<value>"gray"</value>
</param>
<param>
<key>differential</key>
<value>True</value>
</param>
<param>
<key>samples_per_symbol</key>
<value>sps</value>
</param>
<param>
<key>excess_bw</key>
<value>0.35</value>
</param>
<param>
<key>verbose</key>
<value>False</value>
</param>
<param>
<key>log</key>
<value>False</value>
</param>
<param>
<key>_coordinate</key>
<value>(846, 32)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>channels_channel_model</key>
<param>
<key>id</key>
<value>channels_channel_model_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>noise_voltage</key>
<value>noise</value>
</param>
<param>
<key>freq_offset</key>
<value>0.0</value>
</param>
<param>
<key>epsilon</key>
<value>1.0</value>
</param>
<param>
<key>taps</key>
<value>cmath.exp(1j*phase)</value>
</param>
<param>
<key>seed</key>
<value>0</value>
</param>
<param>
<key>_coordinate</key>
<value>(73, 247)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>blocks_file_source</key>
<param>
<key>id</key>
<value>blocks_file_source_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>file</key>
<value>/dev/urandom</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>repeat</key>
<value>True</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(229, 56)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>blocks_throttle</key>
<param>
<key>id</key>
<value>blocks_throttle_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>byte</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>(623, 64)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>blocks_packed_to_unpacked_xx</key>
<param>
<key>id</key>
<value>blocks_packed_to_unpacked_xx_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>byte</value>
</param>
<param>
<key>bits_per_chunk</key>
<value>8</value>
</param>
<param>
<key>endianness</key>
<value>gr.GR_MSB_FIRST</value>
</param>
<param>
<key>num_ports</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(415, 56)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>blocks_ctrlport_monitor</key>
<param>
<key>id</key>
<value>blocks_ctrlport_monitor_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>en</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(229, 7)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<connection>
<source_block_id>blocks_throttle_0</source_block_id>
<sink_block_id>digital_psk_mod_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_pfb_clock_sync_xxx_0</source_block_id>
<sink_block_id>digital_costas_loop_cc_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_costas_loop_cc_0</source_block_id>
<sink_block_id>blocks_null_sink_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>channels_channel_model_0</source_block_id>
<sink_block_id>digital_pfb_clock_sync_xxx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>digital_psk_mod_0</source_block_id>
<sink_block_id>channels_channel_model_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_file_source_0</source_block_id>
<sink_block_id>blocks_packed_to_unpacked_xx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>blocks_packed_to_unpacked_xx_0</source_block_id>
<sink_block_id>blocks_throttle_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
</flow_graph>