Packet Decoder blks2_packet_decoder from grc_gnuradio import blks2 as grc_blks2 from gnuradio import gr grc_blks2.packet_decoder( item_size_out=$type.size*$vlen, access_code=$access_code, threshold=$threshold, ) Output Type type float enum Complex complex size:gr.sizeof_gr_complex Float float size:gr.sizeof_float Int int size:gr.sizeof_int Short short size:gr.sizeof_short Byte byte size:gr.sizeof_char Access Code access_code string Threshold threshold -1 int Vec Length vlen 1 int $vlen > 0 in byte out $type $vlen Packet decoder block, for use with the gnuradio demodulator blocks: gmsk, psk, qam. Access Code: string of 1's and 0's, leave blank for default.