Wait sending encrypted messages via ham radio is illegal?! That's some dystopia clown world shit right there. How does one determine a message is encrypted and not just gibberish?!

I think you can just use sub audible tones, not unlike PL tones. Then you can filter them out.

But yeah, I've thought of lots os ways for stegonography. You can even just say your call sign in a certain way that's coded for something else.

Well akshuaaaaaally any obfuscated communications meant to hide the message are what is illegal

I don’t mind if people do this, of course. But thems the rules.