https://i56578-swl.blogspot.com/2015/07/mfsk-7-200bd-400hz.html
Unid MFSK-7 200Bd 400Hz | diario SWL I-56578 Antonio
This waveform is an MFSK-7 running at 200 baud, the seven tones are 400 Hz spaced. The ACF is 350 mSec then 70 bits long. Looking a...
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