Hi,
I just wanted to let you know that I have created an AppImage of qradiolink based on Debian Buster libraries. There have been some changes recently, and now the VOIP GUI can do cross-mode repeat from FM to FreeDV and viceversa. Other modes like AM and SSB work a little as well, but despite all my efforts I was unable to write a good enough SSB demodulator. I think I have either a problem understanding the AGC in GNU radio or a problem understanding how SSB should be demodulated.
Many thanks to A. Maitland Bottoms who exposed the FreeDV API and maintains the Debian GNU radio package, making it possible for people like me who don't own SSB radios anymore to use FreeDV.
Best regards,
Adrian