OFDM Demod digital_ofdm_demod from grc_gnuradio import blks2 as grc_blks2 from gnuradio import digital grc_blks2.packet_demod_$(type.fcn)(digital.ofdm_demod( options=grc_blks2.options( modulation="$modulation", fft_length=$fft_length, occupied_tones=$occupied_tones, cp_length=$cp_length, snr=$snr, log=None, verbose=None, ), callback=lambda ok, payload: self.$(id).recv_pkt(ok, payload), ), ) Output Type type float enum Modulation modulation enum FFT Length fft_length 512 int Occupied Tones occupied_tones 200 int Cyclic Prefix Length cp_length 128 int SNR snr 10 real in complex out $type Payload Length: 0 for automatic.