Polyphase Channelizer blks2_pfb_channelizer_ccf from gnuradio import blks2 from gnuradio.gr import firdes blks2.pfb_channelizer_ccf( $nchans, $taps, $osr, $atten) set_channel_map(ch_$map) Channels nchans int Taps taps None real_vector Over Sample Ratio osr 1.0 real Attenuation atten 100 real Channel Map ch_map int_vector in complex out complex $nchans