Waterfall Sink satnogs_waterfall_sink import satnogs satnogs.waterfall_sink($samp_rate, $center_freq, $pps, $fft_size, $filename, $mode) Sample Rate samp_rate samp_rate real FFT Size fft_size 1024 int Pixel Rows per Second pps 10 int Mode mode enum Simple decimation 0 Max hold 1 Mean 2 Center Frequency center_freq 0.0 real File filename file_save in complex