OFDM Mod digital_ofdm_mod from grc_gnuradio import blks2 as grc_blks2 from gnuradio import digital grc_blks2.packet_mod_$(type.fcn)(digital.ofdm_mod( options=grc_blks2.options( modulation="$modulation", fft_length=$fft_length, occupied_tones=$occupied_tones, cp_length=$cp_length, pad_for_usrp=$pad_for_usrp, log=None, verbose=None, ), ), payload_length=$payload_length, ) Input Type type float enum Complex complex fcn:c Float float fcn:f Int int fcn:i Short short fcn:s Byte byte fcn:b Modulation modulation enum BPSK bpsk QPSK qpsk 8PSK 8psk QAM8 qam8 QAM16 qam16 QAM64 qam64 QAM256 qam256 FFT Length fft_length 512 int Occupied Tones occupied_tones 200 int Cyclic Prefix Length cp_length 128 int Pad for USRP pad_for_usrp enum Yes True No False Payload Length payload_length 0 int in $type out complex Payload Length: 0 for automatic.