I'd like to know if there's a way to get the cassette port to recognize AX.25 Bell 202 packet radio tones (1200 Hertz and 2200 Hertz at 1200 baud). I think the cassette port audio input pin get routed to the CPU but it only knows "HI" and "LO" so I don't think it can detect sinewave waveforms, but I would really like to be proven wrong on this. If it worked, it would let you run packet radio right off the cassette port and use the cassette motor as a push-to-talk.
Anybody know for sure about the processing of audio input on the cassette port audio input pin? Douglas On Fri, Jul 27, 2018 at 7:49 PM, Jeff Gonzales <[email protected]> wrote: > Anyone still using their Model T for ham radio? >
