Raspberry Pi HAT for Radio Digital Mode FT8 SSTV RTTY FT-817 857 XIEGU G90 KX3 | eBay
Ham radios can be simple as a handheld radio from a local store to an amateur radio station with radio teletype (RTTY); television, Phase Shift Keying, 31 Baud (PSK31); a PACTOR radio
EssexPSK - Free PSK31 Decoder Application | Essex Ham