<?xml version="1.0"?> <!-- ################################################### ##Probe Density ################################################### --> <block> <name>Probe Density</name> <key>gr_probe_density_b</key> <import>from grc_gnuradio import blks2 as grc_blks2</import> <make>grc_blks2.probe_density_b( alpha=$alpha, probe_rate=$probe_rate, )</make> <callback>set_alpha($alpha)</callback> <callback>set_probe_rate($probe_rate)</callback> <param> <name>Alpha</name> <key>alpha</key> <value>1</value> <type>real</type> </param> <param> <name>Probe Rate</name> <key>probe_rate</key> <value>10</value> <type>real</type> </param> <sink> <name>in</name> <type>byte</type> </sink> <source> <name>out</name> <type>float</type> </source> </block>