Post
Thinking about putting together a 70cm 9600 baud packet radio endpoint. What's a good radio module that can do 9600 baud on UHF?
Some I've found: NiceRF SA818U/S, Dorji DRA818U. Still not sure if these can actually do 9600 baud, though. :/
@tk all modules sth sth SA818 have transceiver chips RDA1846 and by default they only do 12.5kHz channel bandwidth, that's too little for AFSK 9k6, they should be reconfigurable to 25kHz but even then it didn't work for me
@tk SiLabs 4463 should be able to do it, but it's configuration is on the involved side, or SX1255 also advanced, pc/raspberry direwolf soundcard handheld radio, maybe easiest setup
@tk SX1255 is available as CaribouLite RPi HAT, actually a whole sdr
https://www.crowdsupply.com/cariboulabs/cariboulite-rpi-hat
@tk Sx1255 also iq sdr available as https://sxceiver.com/
