Hi all,

I've been having a bit of a dig around, and I'm wondering if this combination is possible, potentially with some changes to the source?

Some background, I have a QRP-Labs QDX 3a (not yet built), it's a 5W digital modes transceiver, but with a catch, it can only do a single frequency at a time, without phase. The microprocessor analyses the incoming audio, works out the frequency and generates the RF from a clock source. So FSK possible, no PSK. It does work with HF APRS. It's also extremely light and portable (~150g).

I briefly looked up the ARDOP specs and only superficially understand them, and have looked at what I believe is the ardopc the source.

Is it possible to tell ardopc to only use 4FSK modes? (I'm thinking potentially strAllDataModes in ARDOPC.c.) Does doing this make sense at all?

Is there a better way to do this?

If this can be made to work, it potentially adds a very small and lightweight multiband HF transceiver to the list of radios that can do Winlink.

Regards,
vk3tst/5wtf