<?xml version="1.0"?> <!-- ################################################### ##USRP2 Source ## Note: the center freq must be set after the lo offset ################################################### --> <block> <name>USRP2 Source</name> <key>usrp2_source_xxxx</key> <import>from gnuradio import usrp2</import> <make>#if not $interface() and not $mac_addr() usrp2.source_$(type.fcn)() #elif not $mac_addr() usrp2.source_$(type.fcn)($interface) #else usrp2.source_$(type.fcn)($interface, $mac_addr) #end if self.$(id).set_decim($decimation) #if $lo_offset() != float('inf') self.$(id).set_lo_offset($lo_offset) #end if self.$(id).set_center_freq($frequency) self.$(id).set_gain($gain)</make> <callback>set_decim($decimation)</callback> <callback>#if $lo_offset() != float('inf') self.$(id).set_lo_offset($lo_offset) #end if self.$(id).set_center_freq($frequency)</callback> <callback>set_gain($gain)</callback> <param> <name>Output Type</name> <key>type</key> <type>enum</type> <option> <name>Complex</name> <key>complex</key> <opt>fcn:32fc</opt> </option> <option> <name>Short</name> <key>short</key> <opt>fcn:16sc</opt> </option> </param> <param> <name>Interface</name> <key>interface</key> <value></value> <type>string</type> </param> <param> <name>MAC Addr</name> <key>mac_addr</key> <value></value> <type>string</type> </param> <param> <name>Decimation</name> <key>decimation</key> <type>int</type> </param> <param> <name>Frequency (Hz)</name> <key>frequency</key> <type>real</type> </param> <param> <name>LO Offset (Hz)</name> <key>lo_offset</key> <value>float('inf')</value> <type>real</type> <hide>#if $lo_offset() == float('inf') then 'part' else 'none'#</hide> <option> <name>Default</name> <key>float('inf')</key> </option> </param> <param> <name>Gain (dB)</name> <key>gain</key> <value>0</value> <type>real</type> </param> <source> <name>out</name> <type>$type</type> </source> <doc> The USRP2 source outputs 100 Megasamples per second / decimation. To use the default ethernet device, leave interface blank. \ For systems with only 1 USRP2, you may leave the mac address blank. \ For multi-USRP2 systems, specify the mac address in the form 00:50:C2:85:3x:xx. </doc> </block>