uhd examples: updated all GRC USRP-based examples to UHD examples.

1 files changed, 1365 insertions, 0 deletions

diff --git a/gnuradio-examples/grc/uhd/uhd_wbfm_receive.grc b/gnuradio-examples/grc/uhd/uhd_wbfm_receive.grc
new file mode 100644
index 000000000..62658a2eb
--- /dev/null
+++ b/gnuradio-examples/grc/uhd/uhd_wbfm_receive.grc
@@ -0,0 +1,1365 @@
+<?xml version='1.0' encoding='ASCII'?>
+<flow_graph>
+  <timestamp>Sat Oct  8 15:18:49 2011</timestamp>
+  <block>
+    <key>options</key>
+    <param>
+      <key>id</key>
+      <value>uhd_wbfm_receive</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>UHD WBFM Receive</value>
+    </param>
+    <param>
+      <key>author</key>
+      <value>Example</value>
+    </param>
+    <param>
+      <key>description</key>
+      <value>WBFM Receive</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>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>parameter</key>
+    <param>
+      <key>id</key>
+      <value>gain</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Default Gain</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>g</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(631, 15)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>id</key>
+      <value>freq</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Default Frequency</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>93.3e6</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>f</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(479, 15)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_slider</key>
+    <param>
+      <key>id</key>
+      <value>tun_freq</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Freq (Hz)</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>freq</value>
+    </param>
+    <param>
+      <key>min</key>
+      <value>87.9e6</value>
+    </param>
+    <param>
+      <key>max</key>
+      <value>108.1e6</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>(15, 441)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_slider</key>
+    <param>
+      <key>id</key>
+      <value>fine</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Fine Freq (MHz)</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>min</key>
+      <value>-.1</value>
+    </param>
+    <param>
+      <key>max</key>
+      <value>.1</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>0, 2, 1, 2</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(277, 444)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_slider</key>
+    <param>
+      <key>id</key>
+      <value>tun_gain</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>UHD Gain</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>gain</value>
+    </param>
+    <param>
+      <key>min</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>max</key>
+      <value>20</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>(158, 440)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable_slider</key>
+    <param>
+      <key>id</key>
+      <value>volume</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Volume</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>min</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>max</key>
+      <value>10</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>1, 0, 1, 4</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(436, 446)</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</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>float</value>
+    </param>
+    <param>
+      <key>const</key>
+      <value>volume</value>
+    </param>
+    <param>
+      <key>vlen</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(836, 161)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>uhd_usrp_source</key>
+    <param>
+      <key>id</key>
+      <value>uhd_usrp_source_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>dev_addr</key>
+      <value>address</value>
+    </param>
+    <param>
+      <key>sync</key>
+      <value></value>
+    </param>
+    <param>
+      <key>clock_rate</key>
+      <value>0.0</value>
+    </param>
+    <param>
+      <key>num_mboards</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>ref_source0</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec0</key>
+      <value></value>
+    </param>
+    <param>
+      <key>ref_source1</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec1</key>
+      <value></value>
+    </param>
+    <param>
+      <key>ref_source2</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec2</key>
+      <value></value>
+    </param>
+    <param>
+      <key>ref_source3</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec3</key>
+      <value></value>
+    </param>
+    <param>
+      <key>ref_source4</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec4</key>
+      <value></value>
+    </param>
+    <param>
+      <key>ref_source5</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec5</key>
+      <value></value>
+    </param>
+    <param>
+      <key>ref_source6</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec6</key>
+      <value></value>
+    </param>
+    <param>
+      <key>ref_source7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>sd_spec7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>nchan</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>center_freq0</key>
+      <value>tun_freq+fine</value>
+    </param>
+    <param>
+      <key>gain0</key>
+      <value>tun_gain</value>
+    </param>
+    <param>
+      <key>ant0</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw0</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq1</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain1</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant1</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw1</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq2</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain2</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant2</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw2</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq3</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain3</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant3</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw3</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq4</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain4</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant4</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw4</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq5</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain5</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant5</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw5</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq6</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain6</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant6</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw6</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq7</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain7</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant7</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw7</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq8</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain8</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant8</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw8</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq9</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain9</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant9</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw9</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq10</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain10</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant10</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw10</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq11</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain11</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant11</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw11</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq12</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain12</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant12</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw12</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq13</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain13</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant13</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw13</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq14</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain14</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant14</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw14</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq15</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain15</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant15</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw15</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq16</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain16</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant16</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw16</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq17</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain17</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant17</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw17</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq18</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain18</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant18</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw18</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq19</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain19</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant19</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw19</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq20</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain20</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant20</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw20</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq21</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain21</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant21</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw21</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq22</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain22</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant22</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw22</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq23</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain23</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant23</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw23</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq24</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain24</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant24</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw24</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq25</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain25</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant25</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw25</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq26</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain26</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant26</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw26</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq27</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain27</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant27</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw27</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq28</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain28</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant28</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw28</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq29</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain29</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant29</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw29</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq30</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain30</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant30</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw30</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>center_freq31</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>gain31</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ant31</key>
+      <value></value>
+    </param>
+    <param>
+      <key>bw31</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(14, 165)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>id</key>
+      <value>address</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>IP Address</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>addr=192.168.10.2</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>string</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>a</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(199, 14)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>wxgui_fftsink2</key>
+    <param>
+      <key>id</key>
+      <value>wxgui_fftsink2</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>complex</value>
+    </param>
+    <param>
+      <key>title</key>
+      <value>FFT Plot</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>baseband_freq</key>
+      <value>(freq+fine)*1e6</value>
+    </param>
+    <param>
+      <key>y_per_div</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>y_divs</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>ref_level</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>ref_scale</key>
+      <value>2.0</value>
+    </param>
+    <param>
+      <key>fft_size</key>
+      <value>512</value>
+    </param>
+    <param>
+      <key>fft_rate</key>
+      <value>15</value>
+    </param>
+    <param>
+      <key>peak_hold</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>average</key>
+      <value>False</value>
+    </param>
+    <param>
+      <key>avg_alpha</key>
+      <value>0</value>
+    </param>
+    <param>
+      <key>win</key>
+      <value>None</value>
+    </param>
+    <param>
+      <key>win_size</key>
+      <value></value>
+    </param>
+    <param>
+      <key>grid_pos</key>
+      <value>2, 0, 2, 4</value>
+    </param>
+    <param>
+      <key>notebook</key>
+      <value></value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(624, 278)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>id</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Sample Rate</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>400e3</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>eng_float</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>s</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(352, 15)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>parameter</key>
+    <param>
+      <key>id</key>
+      <value>audio_output</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>label</key>
+      <value>Audio Output Device</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value></value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>string</value>
+    </param>
+    <param>
+      <key>short_id</key>
+      <value>O</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(769, 13)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>audio_sink</key>
+    <param>
+      <key>id</key>
+      <value>audio_sink</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>int(samp_rate/audio_decim)</value>
+    </param>
+    <param>
+      <key>device_name</key>
+      <value>audio_output</value>
+    </param>
+    <param>
+      <key>ok_to_block</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>num_inputs</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(1023, 161)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>blks2_wfm_rcv</key>
+    <param>
+      <key>id</key>
+      <value>blks2_wfm_rcv</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>quad_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>audio_decimation</key>
+      <value>audio_decim</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(626, 153)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>low_pass_filter</key>
+    <param>
+      <key>id</key>
+      <value>low_pass_filter_0</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>type</key>
+      <value>fir_filter_ccf</value>
+    </param>
+    <param>
+      <key>decim</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>interp</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>gain</key>
+      <value>1</value>
+    </param>
+    <param>
+      <key>samp_rate</key>
+      <value>samp_rate</value>
+    </param>
+    <param>
+      <key>cutoff_freq</key>
+      <value>115e3</value>
+    </param>
+    <param>
+      <key>width</key>
+      <value>30e3</value>
+    </param>
+    <param>
+      <key>win</key>
+      <value>firdes.WIN_HANN</value>
+    </param>
+    <param>
+      <key>beta</key>
+      <value>6.76</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(326, 141)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <block>
+    <key>variable</key>
+    <param>
+      <key>id</key>
+      <value>audio_decim</value>
+    </param>
+    <param>
+      <key>_enabled</key>
+      <value>True</value>
+    </param>
+    <param>
+      <key>value</key>
+      <value>10</value>
+    </param>
+    <param>
+      <key>_coordinate</key>
+      <value>(19, 351)</value>
+    </param>
+    <param>
+      <key>_rotation</key>
+      <value>0</value>
+    </param>
+  </block>
+  <connection>
+    <source_block_id>gr_multiply_const_vxx</source_block_id>
+    <sink_block_id>audio_sink</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>blks2_wfm_rcv</source_block_id>
+    <sink_block_id>gr_multiply_const_vxx</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>low_pass_filter_0</source_block_id>
+    <sink_block_id>blks2_wfm_rcv</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>uhd_usrp_source_0</source_block_id>
+    <sink_block_id>low_pass_filter_0</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+  <connection>
+    <source_block_id>low_pass_filter_0</source_block_id>
+    <sink_block_id>wxgui_fftsink2</sink_block_id>
+    <source_key>0</source_key>
+    <sink_key>0</sink_key>
+  </connection>
+</flow_graph>