[anthk]

- Lower the MTU

- Use Mosh instead of SSH

- Spawn TMUX in the remote machine to send less bits per session

I tried Mosh+Tmux with 2.7 KBPS (and less) when I was using a data plan. It worked perfectly fine, no delay or barely noticeable.

[ErroneousBosh]

And then you'd be able to hear the difference in the chat between the two machines! That's an amazing demo :-)

I used to use mosh and tmux over 9600bps AX.25 before I had 3G data, a very long time ago. Strictly speaking SSH over amateur radio breaks the rule about encryption but 144MHz is a big place with no-one in it, and you can't pay Ofcom to take an interest in what people do on amateur radio.