<?xml version='1.0' encoding='ASCII'?>
<flow_graph>
<timestamp>Mon Nov 9 08:03:25 2009</timestamp>
<block>
<key>options</key>
<param>
<key>id</key>
<value>usrp_rx_hrpt_nogui</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>4096,4096</value>
</param>
<param>
<key>generate_options</key>
<value>no_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>1</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>max_carrier_offset</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>value</key>
<value>2*math.pi*100e3/sample_rate</value>
</param>
<param>
<key>_coordinate</key>
<value>(575, 19)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>id</key>
<value>sym_rate</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>value</key>
<value>600*1109</value>
</param>
<param>
<key>_coordinate</key>
<value>(301, 19)</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/sym_rate</value>
</param>
<param>
<key>_coordinate</key>
<value>(397, 19)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>id</key>
<value>hs</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>value</key>
<value>int(sps/2.0)</value>
</param>
<param>
<key>_coordinate</key>
<value>(499, 19)</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>(198, 17)</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>(13, 162)</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 math, os</value>
</param>
<param>
<key>_coordinate</key>
<value>(11, 109)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable_config</key>
<param>
<key>id</key>
<value>gain</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>value</key>
<value>35</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_hrpt'</value>
</param>
<param>
<key>option</key>
<value>'gain'</value>
</param>
<param>
<key>writeback</key>
<value>gain</value>
</param>
<param>
<key>_coordinate</key>
<value>(668, 101)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable_config</key>
<param>
<key>id</key>
<value>freq</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>value</key>
<value>1698e6</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_hrpt'</value>
</param>
<param>
<key>option</key>
<value>'freq'</value>
</param>
<param>
<key>writeback</key>
<value>freq</value>
</param>
<param>
<key>_coordinate</key>
<value>(511, 100)</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_hrpt'</value>
</param>
<param>
<key>option</key>
<value>'side'</value>
</param>
<param>
<key>writeback</key>
<value>side</value>
</param>
<param>
<key>_coordinate</key>
<value>(198, 95)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>gr_agc_xx</key>
<param>
<key>id</key>
<value>agc</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</value>
</param>
<param>
<key>max_gain</key>
<value>1.0</value>
</param>
<param>
<key>_coordinate</key>
<value>(339, 434)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>usrp_simple_source_x</key>
<param>
<key>id</key>
<value>usrp_source</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</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>(127, 418)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>gr_clock_recovery_mm_xx</key>
<param>
<key>id</key>
<value>gr_clock_recovery_mm_xx_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>omega</key>
<value>sps/2.0</value>
</param>
<param>
<key>gain_omega</key>
<value>clock_alpha**2/4.0</value>
</param>
<param>
<key>mu</key>
<value>0.5</value>
</param>
<param>
<key>gain_mu</key>
<value>clock_alpha</value>
</param>
<param>
<key>omega_relative_limit</key>
<value>max_clock_offset</value>
</param>
<param>
<key>_coordinate</key>
<value>(920, 426)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>gr_moving_average_xx</key>
<param>
<key>id</key>
<value>gr_moving_average_xx_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>type</key>
<value>float</value>
</param>
<param>
<key>length</key>
<value>hs</value>
</param>
<param>
<key>scale</key>
<value>1.0/hs</value>
</param>
<param>
<key>max_iter</key>
<value>4000</value>
</param>
<param>
<key>_coordinate</key>
<value>(720, 442)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>noaa_hrpt_pll_cf</key>
<param>
<key>id</key>
<value>pll</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>alpha</key>
<value>pll_alpha</value>
</param>
<param>
<key>beta</key>
<value>pll_alpha**2/4.0</value>
</param>
<param>
<key>max_offset</key>
<value>max_carrier_offset</value>
</param>
<param>
<key>_coordinate</key>
<value>(507, 442)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>virtual_sink</key>
<param>
<key>id</key>
<value>virtual_sink_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>stream_id</key>
<value>baseband</value>
</param>
<param>
<key>_coordinate</key>
<value>(1180, 457)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>gr_file_sink</key>
<param>
<key>id</key>
<value>frame_sink</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>file</key>
<value>output_filename</value>
</param>
<param>
<key>type</key>
<value>short</value>
</param>
<param>
<key>vlen</key>
<value>1</value>
</param>
<param>
<key>_coordinate</key>
<value>(1026, 722)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>virtual_source</key>
<param>
<key>id</key>
<value>virtual_source_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>stream_id</key>
<value>baseband</value>
</param>
<param>
<key>_coordinate</key>
<value>(226, 669)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>gr_binary_slicer_fb</key>
<param>
<key>id</key>
<value>gr_binary_slicer_fb_0</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(446, 673)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>noaa_hrpt_deframer</key>
<param>
<key>id</key>
<value>deframer</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(815, 673)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable_config</key>
<param>
<key>id</key>
<value>decim</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>value</key>
<value>32</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_hrpt'</value>
</param>
<param>
<key>option</key>
<value>'decim'</value>
</param>
<param>
<key>writeback</key>
<value>decim</value>
</param>
<param>
<key>_coordinate</key>
<value>(355, 97)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable_config</key>
<param>
<key>id</key>
<value>pll_alpha</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>value</key>
<value>0.01</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_hrpt'</value>
</param>
<param>
<key>option</key>
<value>'pll_alpha'</value>
</param>
<param>
<key>writeback</key>
<value>pll_alpha</value>
</param>
<param>
<key>_coordinate</key>
<value>(827, 100)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable_config</key>
<param>
<key>id</key>
<value>clock_alpha</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>value</key>
<value>0.01</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_hrpt'</value>
</param>
<param>
<key>option</key>
<value>'clock_alpha'</value>
</param>
<param>
<key>writeback</key>
<value>clock_alpha</value>
</param>
<param>
<key>_coordinate</key>
<value>(986, 101)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable_config</key>
<param>
<key>id</key>
<value>output_filename</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>value</key>
<value>'frames.hrpt'</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_hrpt'</value>
</param>
<param>
<key>option</key>
<value>'filename'</value>
</param>
<param>
<key>writeback</key>
<value>output_filename</value>
</param>
<param>
<key>_coordinate</key>
<value>(1143, 101)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>variable</key>
<param>
<key>id</key>
<value>max_clock_offset</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>value</key>
<value>100e-6</value>
</param>
<param>
<key>_coordinate</key>
<value>(705, 19)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<block>
<key>noaa_hrpt_decoder</key>
<param>
<key>id</key>
<value>decoder</value>
</param>
<param>
<key>_enabled</key>
<value>True</value>
</param>
<param>
<key>verbose</key>
<value>True</value>
</param>
<param>
<key>output</key>
<value>True</value>
</param>
<param>
<key>_coordinate</key>
<value>(1027, 623)</value>
</param>
<param>
<key>_rotation</key>
<value>0</value>
</param>
</block>
<connection>
<source_block_id>usrp_source</source_block_id>
<sink_block_id>agc</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>agc</source_block_id>
<sink_block_id>pll</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>pll</source_block_id>
<sink_block_id>gr_moving_average_xx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>gr_moving_average_xx_0</source_block_id>
<sink_block_id>gr_clock_recovery_mm_xx_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>gr_clock_recovery_mm_xx_0</source_block_id>
<sink_block_id>virtual_sink_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>virtual_source_0</source_block_id>
<sink_block_id>gr_binary_slicer_fb_0</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>deframer</source_block_id>
<sink_block_id>frame_sink</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>deframer</source_block_id>
<sink_block_id>decoder</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
<connection>
<source_block_id>gr_binary_slicer_fb_0</source_block_id>
<sink_block_id>deframer</sink_block_id>
<source_key>0</source_key>
<sink_key>0</sink_key>
</connection>
</flow_graph>