Umm, you make it look like a trivial problem to solve, which IMHO is not the case when you take the fact you can risk life in prison or death in to the account. I'm from ex-communism country - where a lot of successful broadcastings happened, nevertheless, they got always identified at the end of the day - and then, guess what happened. When you are facing such restrictive conditions, even signal itself is good cause to get you in trouble - no matter whether the information carried is understood/sniffed or not, bounced or not. Anti-triangulation measures you are talking about have IMHO no practical use as long as anyone on the other side is using mobile radio signal detectors. Or if you know about real world application - I'd love to learn about it. Cheers