The modulation scheme is GFSK 9K6 AX.25.(GEOSCAN)
The bandwidth is approximately 15 kHz, and it can be further reduced if necessary.
Russian satellites typically use the USP (Sputnik) or GEOSCAN systems, and can directly connect to the UZ7HO Soundmodem.
Currently, everyone at GEOSCAN is using version 2.7. Be careful not to download any other versions.
How about trying the "obrition" DDE plugin for automatic Doppler...?
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