Also forgot to mention it but an even wider use of AFSK than FT-8 and it's WSJT cousins is AX.25/APRS over VHF. Sadly it's not nearly as advanced as FT-8 since

Also forgot to mention it but an even wider use of AFSK than FT-8 and it's WSJT cousins is AX.25/APRS over VHF. Sadly it's not nearly as advanced as FT-8 since it most commonly uses 202 Bell tones and a blazing 1200bps. There's been other digital formats but the whole situation is pretty fragmented. The infrastructure side of APRS is pretty nifty, you have sites like aprs.fi[1] that let you see the current state of the world in near realtime anywhere an I-Gate is present. [1] http://aprs.fi/ http://aprs.fi/