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   1 <?xml version='1.0' encoding='ASCII'?>
   2 <flow_graph>
   3   <timestamp>Fri Jan 23 11:38:11 2009</timestamp>
   4   <block>
   5     <key>options</key>
   6     <param>
   7       <key>id</key>
   8       <value>top_block</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</value>
  17     </param>
  18     <param>
  19       <key>author</key>
  20       <value>Example</value>
  21     </param>
  22     <param>
  23       <key>description</key>
  24       <value>FFT of Spectrum</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>_coordinate</key>
  40       <value>(10, 10)</value>
  41     </param>
  42     <param>
  43       <key>_rotation</key>
  44       <value>0</value>
  45     </param>
  46   </block>
  47   <block>
  48     <key>variable</key>
  49     <param>
  50       <key>id</key>
  51       <value>decim</value>
  52     </param>
  53     <param>
  54       <key>_enabled</key>
  55       <value>True</value>
  56     </param>
  57     <param>
  58       <key>value</key>
  59       <value>4</value>
  60     </param>
  61     <param>
  62       <key>_coordinate</key>
  63       <value>(35, 149)</value>
  64     </param>
  65     <param>
  66       <key>_rotation</key>
  67       <value>0</value>
  68     </param>
  69   </block>
  70   <block>
  71     <key>usrp2_source_xxxx</key>
  72     <param>
  73       <key>id</key>
  74       <value>usrp2_source_xxxx_0</value>
  75     </param>
  76     <param>
  77       <key>_enabled</key>
  78       <value>True</value>
  79     </param>
  80     <param>
  81       <key>type</key>
  82       <value>complex</value>
  83     </param>
  84     <param>
  85       <key>interface</key>
  86       <value></value>
  87     </param>
  88     <param>
  89       <key>mac_addr</key>
  90       <value></value>
  91     </param>
  92     <param>
  93       <key>frequency</key>
  94       <value>freq</value>
  95     </param>
  96     <param>
  97       <key>decimation</key>
  98       <value>decim</value>
  99     </param>
 100     <param>
 101       <key>gain</key>
 102       <value>0</value>
 103     </param>
 104     <param>
 105       <key>auto_tr</key>
 106       <value></value>
 107     </param>
 108     <param>
 109       <key>rx_ant</key>
 110       <value></value>
 111     </param>
 112     <param>
 113       <key>_coordinate</key>
 114       <value>(177, 271)</value>
 115     </param>
 116     <param>
 117       <key>_rotation</key>
 118       <value>0</value>
 119     </param>
 120   </block>
 121   <block>
 122     <key>wxgui_fftsink2</key>
 123     <param>
 124       <key>id</key>
 125       <value>wxgui_fftsink2_0</value>
 126     </param>
 127     <param>
 128       <key>_enabled</key>
 129       <value>True</value>
 130     </param>
 131     <param>
 132       <key>type</key>
 133       <value>complex</value>
 134     </param>
 135     <param>
 136       <key>title</key>
 137       <value>FFT Plot</value>
 138     </param>
 139     <param>
 140       <key>samp_rate</key>
 141       <value>100e6/decim</value>
 142     </param>
 143     <param>
 144       <key>baseband_freq</key>
 145       <value>freq</value>
 146     </param>
 147     <param>
 148       <key>y_per_div</key>
 149       <value>10</value>
 150     </param>
 151     <param>
 152       <key>y_divs</key>
 153       <value>12</value>
 154     </param>
 155     <param>
 156       <key>ref_level</key>
 157       <value>20</value>
 158     </param>
 159     <param>
 160       <key>fft_size</key>
 161       <value>1024</value>
 162     </param>
 163     <param>
 164       <key>fft_rate</key>
 165       <value>30</value>
 166     </param>
 167     <param>
 168       <key>avg_alpha</key>
 169       <value>0</value>
 170     </param>
 171     <param>
 172       <key>average</key>
 173       <value>False</value>
 174     </param>
 175     <param>
 176       <key>peak_hold</key>
 177       <value>False</value>
 178     </param>
 179     <param>
 180       <key>grid_pos</key>
 181       <value></value>
 182     </param>
 183     <param>
 184       <key>_coordinate</key>
 185       <value>(384, 72)</value>
 186     </param>
 187     <param>
 188       <key>_rotation</key>
 189       <value>0</value>
 190     </param>
 191   </block>
 192   <block>
 193     <key>variable_slider</key>
 194     <param>
 195       <key>id</key>
 196       <value>freq</value>
 197     </param>
 198     <param>
 199       <key>_enabled</key>
 200       <value>True</value>
 201     </param>
 202     <param>
 203       <key>label</key>
 204       <value>Frequency (Hz)</value>
 205     </param>
 206     <param>
 207       <key>value</key>
 208       <value>0</value>
 209     </param>
 210     <param>
 211       <key>min</key>
 212       <value>-100e6</value>
 213     </param>
 214     <param>
 215       <key>max</key>
 216       <value>100e6</value>
 217     </param>
 218     <param>
 219       <key>num_steps</key>
 220       <value>100</value>
 221     </param>
 222     <param>
 223       <key>slider_length</key>
 224       <value>200</value>
 225     </param>
 226     <param>
 227       <key>slider_type</key>
 228       <value>horizontal</value>
 229     </param>
 230     <param>
 231       <key>grid_pos</key>
 232       <value></value>
 233     </param>
 234     <param>
 235       <key>_coordinate</key>
 236       <value>(139, 129)</value>
 237     </param>
 238     <param>
 239       <key>_rotation</key>
 240       <value>0</value>
 241     </param>
 242   </block>
 243   <connection>
 244     <source_block_id>usrp2_source_xxxx_0</source_block_id>
 245     <sink_block_id>wxgui_fftsink2_0</sink_block_id>
 246     <source_key>0</source_key>
 247     <sink_key>0</sink_key>
 248   </connection>
 249 </flow_graph>