Would be interested to learn more about how to xmit BTC using Ham radio. Which modes could be used? I assume the TCP/IP layer is still required at some point in the process? Knowing that Ham radio is not (may not be) encrypted,  would your private keys be exposed if you tried to send BTC to another wallet via the Ham bands? Digital modes are getting better & better - I especially like LORA/Meshtastic - Very cool stuff - 73, Ernie, HB9GUF