Is this actually a valid (albeit not feasible, but theoretically valid) answer to the question though? I didn't capitalize the I in my question, but I should have, because I do mean for it to be interoperable / peered.
I think so? If you run your radio transmitter.
Just tell peers what frequency. Though if some company decides to build a large relay node infrastructure, you'd need some crypto verification to keep them off Yournet.