Hello. Recently I came across this page:
and was wondering if AFSK modulation could be achieved on Si446x with an MCU, seeing that demodulation is possible. I'd like to use this radio module for AX.25 (Packet radio) and for that I need AFSK 1200baud with 1200Hz and 2400Hz tones. Would that be possible to somehow force the radio to produce a transmission simillar to AFSK that would be properly received by FM receivers?