15 January 2015

Unid FSK 55Bd/500

heard on 13390.0 KHz/USB on 15 Januray, and monitored from 1320z to 1400z with reversals, this signal has a speed of 55 baud and 500 Hz shift. That frequency is commonly used by Russian/CIS Military with transmissions in Moroz-1A (and FSK/50/850) and FROST-1: the latter mode has been heard some years ago. Thre is also a Chinese ALE Net that operates in that frequency, but signal strenght and the mode (FSK) suggests a Russian/CIS source.
Any idea?

Below the FSK Analisys performed by W-Code and kripto500:



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