Channel Model blks2_channel_model from gnuradio import blks2 from gnuradio.gr import firdes blks2.channel_model( noise_voltage=$noise_voltage, frequency_offset=$freq_offset, epsilon=$epsilon, taps=$taps, noise_seed=$seed, ) set_noise_voltage($noise_voltage) set_frequency_offset($freq_offset) set_taps($taps) Noise Voltage noise_voltage 0.0 real Frequency Offset freq_offset 0.0 real Epsilon epsilon 1.0 real Taps taps 1.0, 0.0 complex_vector Seed seed 42 int in complex out complex