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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. :/

#AmateurRadio #HamRadio #PacketRadio

#hamradio #amateurradio #packetradio

Mac - VA3WFT reshared this.

in reply to Neil E. Hodges

Bernhard
Bernhard
• •
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

Neil E. Hodges reshared this.

in reply to Bernhard

Bernhard
Bernhard
• •
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
in reply to Neil E. Hodges

Bernhard
Bernhard
• •
AT86RF215 is available as CaribouLite RPi HAT, actually a whole sdr
https://www.crowdsupply.com/cariboulabs/cariboulite-rpi-hat
(edit: mixup with SX1255)

CaribouLite RPi HAT

A fully open source dual-channel SDR Raspberry Pi HAT with a tuning range up to 6 GHz
Crowd Supply
This entry was edited (1 day ago)
in reply to Neil E. Hodges

Aladár Mézga
Aladár Mézga
• •
9k6 shouldn't be too difficult. Back in the olden days there were lots of instructions on how to access the discriminator directly in whatever transceiver. You need to bypass the audio stages in both directions, then you should be good.
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