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   1 <?xml version='1.0' encoding='ASCII'?>
   2 <flow_graph>
   3   <timestamp>Wed Apr 15 17:30:20 2009</timestamp>
   4   <block>
   5     <key>options</key>
   6     <param>
   7       <key>id</key>
   8       <value>usrp2_fft</value>
   9     </param>
  10     <param>
  11       <key>_enabled</key>
  12       <value>True</value>
  13     </param>
  14     <param>
  15       <key>title</key>
  16       <value>USRP2 FFT Plotter</value>
  17     </param>
  18     <param>
  19       <key>author</key>
  20       <value>Example</value>
  21     </param>
  22     <param>
  23       <key>description</key>
  24       <value>FFT waveform plot</value>
  25     </param>
  26     <param>
  27       <key>window_size</key>
  28       <value>1280, 1024</value>
  29     </param>
  30     <param>
  31       <key>generate_options</key>
  32       <value>wx_gui</value>
  33     </param>
  34     <param>
  35       <key>category</key>
  36       <value>Custom</value>
  37     </param>
  38     <param>
  39       <key>realtime_scheduling</key>
  40       <value></value>
  41     </param>
  42     <param>
  43       <key>_coordinate</key>
  44       <value>(10, 10)</value>
  45     </param>
  46     <param>
  47       <key>_rotation</key>
  48       <value>0</value>
  49     </param>
  50   </block>
  51   <block>
  52     <key>variable</key>
  53     <param>
  54       <key>id</key>
  55       <value>samp_rate</value>
  56     </param>
  57     <param>
  58       <key>_enabled</key>
  59       <value>True</value>
  60     </param>
  61     <param>
  62       <key>value</key>
  63       <value>100e6/decim</value>
  64     </param>
  65     <param>
  66       <key>_coordinate</key>
  67       <value>(10, 170)</value>
  68     </param>
  69     <param>
  70       <key>_rotation</key>
  71       <value>0</value>
  72     </param>
  73   </block>
  74   <block>
  75     <key>variable</key>
  76     <param>
  77       <key>id</key>
  78       <value>decim</value>
  79     </param>
  80     <param>
  81       <key>_enabled</key>
  82       <value>True</value>
  83     </param>
  84     <param>
  85       <key>value</key>
  86       <value>16</value>
  87     </param>
  88     <param>
  89       <key>_coordinate</key>
  90       <value>(24, 267)</value>
  91     </param>
  92     <param>
  93       <key>_rotation</key>
  94       <value>0</value>
  95     </param>
  96   </block>
  97   <block>
  98     <key>variable_slider</key>
  99     <param>
 100       <key>id</key>
 101       <value>tun_freq</value>
 102     </param>
 103     <param>
 104       <key>_enabled</key>
 105       <value>True</value>
 106     </param>
 107     <param>
 108       <key>label</key>
 109       <value>USRP2 Freq (Hz)</value>
 110     </param>
 111     <param>
 112       <key>value</key>
 113       <value>2.45e9</value>
 114     </param>
 115     <param>
 116       <key>min</key>
 117       <value>2.4e9</value>
 118     </param>
 119     <param>
 120       <key>max</key>
 121       <value>2.5e9</value>
 122     </param>
 123     <param>
 124       <key>num_steps</key>
 125       <value>100</value>
 126     </param>
 127     <param>
 128       <key>style</key>
 129       <value>wx.SL_HORIZONTAL</value>
 130     </param>
 131     <param>
 132       <key>converver</key>
 133       <value>float_converter</value>
 134     </param>
 135     <param>
 136       <key>grid_pos</key>
 137       <value></value>
 138     </param>
 139     <param>
 140       <key>_coordinate</key>
 141       <value>(32, 365)</value>
 142     </param>
 143     <param>
 144       <key>_rotation</key>
 145       <value>0</value>
 146     </param>
 147   </block>
 148   <block>
 149     <key>wxgui_fftsink2</key>
 150     <param>
 151       <key>id</key>
 152       <value>wxgui_fftsink2_0</value>
 153     </param>
 154     <param>
 155       <key>_enabled</key>
 156       <value>True</value>
 157     </param>
 158     <param>
 159       <key>type</key>
 160       <value>complex</value>
 161     </param>
 162     <param>
 163       <key>title</key>
 164       <value>FFT Plot</value>
 165     </param>
 166     <param>
 167       <key>samp_rate</key>
 168       <value>samp_rate</value>
 169     </param>
 170     <param>
 171       <key>baseband_freq</key>
 172       <value>tun_freq</value>
 173     </param>
 174     <param>
 175       <key>y_per_div</key>
 176       <value>10</value>
 177     </param>
 178     <param>
 179       <key>ref_level</key>
 180       <value>10</value>
 181     </param>
 182     <param>
 183       <key>fft_size</key>
 184       <value>1024</value>
 185     </param>
 186     <param>
 187       <key>fft_rate</key>
 188       <value>30</value>
 189     </param>
 190     <param>
 191       <key>peak_hold</key>
 192       <value>False</value>
 193     </param>
 194     <param>
 195       <key>average</key>
 196       <value>False</value>
 197     </param>
 198     <param>
 199       <key>avg_alpha</key>
 200       <value>0</value>
 201     </param>
 202     <param>
 203       <key>grid_pos</key>
 204       <value></value>
 205     </param>
 206     <param>
 207       <key>_coordinate</key>
 208       <value>(466, 100)</value>
 209     </param>
 210     <param>
 211       <key>_rotation</key>
 212       <value>0</value>
 213     </param>
 214   </block>
 215   <block>
 216     <key>usrp2_source_xxxx</key>
 217     <param>
 218       <key>id</key>
 219       <value>usrp2_source_xxxx_0</value>
 220     </param>
 221     <param>
 222       <key>_enabled</key>
 223       <value>True</value>
 224     </param>
 225     <param>
 226       <key>type</key>
 227       <value>complex</value>
 228     </param>
 229     <param>
 230       <key>interface</key>
 231       <value></value>
 232     </param>
 233     <param>
 234       <key>mac_addr</key>
 235       <value></value>
 236     </param>
 237     <param>
 238       <key>decimation</key>
 239       <value>decim</value>
 240     </param>
 241     <param>
 242       <key>frequency</key>
 243       <value>tun_freq</value>
 244     </param>
 245     <param>
 246       <key>gain</key>
 247       <value>0</value>
 248     </param>
 249     <param>
 250       <key>_coordinate</key>
 251       <value>(211, 200)</value>
 252     </param>
 253     <param>
 254       <key>_rotation</key>
 255       <value>0</value>
 256     </param>
 257   </block>
 258   <connection>
 259     <source_block_id>usrp2_source_xxxx_0</source_block_id>
 260     <sink_block_id>wxgui_fftsink2_0</sink_block_id>
 261     <source_key>0</source_key>
 262     <sink_key>0</sink_key>
 263   </connection>
 264 </flow_graph>