I don't know if you will see this, or if you're using the "royal we", but if there's anything i can do to test using ultra-low bandwidth matrix over packet/PACTOR radio on HF; i'd be very interested.

Unfortunately, none of it can be encrypted (not with my license, at least) - but for sending telemetry or simple "i'm still alive" messages i think it would be pretty cool. Not having to write custom tooling off ham radio "tools" like fldigi, but rather have a bot sitting somewhere else monitoring the channel seems like a huge, huge win.