<?xml version="1.0"?> <!-- ################################################### ##Detect Peak ################################################### --> <block> <name>Detect Peak</name> <key>gr_dpll_bb</key> <import>from gnuradio import gr</import> <make>gr.dpll_bb($period, $gain)</make> <param> <name>Period</name> <key>period</key> <type>real</type> </param> <param> <name>Gain</name> <key>gain</key> <type>real</type> </param> <sink> <name>in</name> <type>byte</type> </sink> <source> <name>out</name> <type>byte</type> </source> </block>