The cable and parts for a 'digimode' interface for the new FT-857 radio are
on their way. Such an interface will allow me to get audio from the radio
directly into a computer and audio from the computer directly into the
radio. This will allow digital radio modes such as PSK31, RTTY or AFSK. These
modes allow bits (text, or databits) to be exchanged over radio. The
simplest interface like FT-817 AFSK cable
couples these directly but based on the advice of fellow radio amateurs
I will use audio transformers to decouple the computer and radio and keep
stray radio signals out of my computer and any interference from the computer
out of my radio and I decided to use a cheap USB audio interface.
What I will build is based on
Digital VOX sound
card interface but without the 'VOX' part
and iPhone / Baofeng interface (schema) and
El Cheapo AFSK (e.g. RTTY) USB interface (for FT-8×7) - remco.org.
Parts have arrived, time to build something on a development board first.