11 November 2023

unid MFSK-17 125Bd

Unid (probably Russian) MFSK-17/125 125Bd burst transmission heard on 21292 kHz USB (15mt HAM band) USB at 0830 UTC. 

Fig. 1

Fig. 2

The same waveform was already noted six years ago(!) and reported in this blog:
http://i56578-swl.blogspot.com/2017/07/russian-mfsk-17-125bd125hz-burst-system.html 

 https://disk.yandex.com/d/7LLoZu03nFRhaA

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