I have an idea, but I'm not sure if it's feasible. I would appreciate any advice from experienced individuals.
I recently started experimenting with SSTV, but when I use a handheld radio to receive audio from a computer or phone and then re-transmit it, the results are not very good.
Is it possible to transmit audio from a computer directly through a handheld radio's microphone? If so, what software or cables are required?