<?xml version="1.0"?> <!-- ################################################### ##Amplitude balance ################################################### --> <block> <name>Amplitude Balance</name> <key>channels_amp_bal</key> <import>from gnuradio import channels</import> <make>channels.amp_bal($alpha)</make> <callback>set_alpha($alpha)</callback> <param> <name>Alpha</name> <key>alpha</key> <value>0</value> <type>float</type> </param> <sink> <name>in</name> <type>complex</type> </sink> <source> <name>out</name> <type>complex</type> </source> </block>