<?xml version="1.0"?> <!-- ################################################### ##Frequency Modulator ################################################### --> <block> <name>Frequency Mod</name> <key>gr_frequency_modulator_fc</key> <import>from gnuradio import gr</import> <make>gr.frequency_modulator_fc($sensitivity)</make> <param> <name>Sensitivity</name> <key>sensitivity</key> <type>real</type> </param> <sink> <name>in</name> <type>float</type> </sink> <source> <name>out</name> <type>complex</type> </source> </block>