<?xml version="1.0"?> <!-- ################################################### ##PLL Frequency Det ################################################### --> <block> <name>PLL Freq Det</name> <key>gr_pll_freqdet_cf</key> <import>from gnuradio import gr</import> <make>gr.pll_freqdet_cf($alpha, $beta, $max_freq, $min_freq)</make> <param> <name>Alpha</name> <key>alpha</key> <type>real</type> </param> <param> <name>Beta</name> <key>beta</key> <type>real</type> </param> <param> <name>Max Freq</name> <key>max_freq</key> <type>real</type> </param> <param> <name>Min Freq</name> <key>min_freq</key> <type>real</type> </param> <sink> <name>in</name> <type>complex</type> </sink> <source> <name>out</name> <type>float</type> </source> </block>