>>3653You want something that's widely used. Get CB radio or HAM radio. CB radio doesn't require a license in all countries. PMR446 is also available to most without a license but it sucks. FCC hunts down pirate radio transmitters, so be careful (do not transmit from your home and do not copy someone else's callsign). If you are looking for a HAM transceiver, you should start with Baeofeng uv-82 or Wouxun UV-6KD (both are available under other model names, too). They cost like $50 new. ARRL has literature on HAM radio and material for studying for exams. I recommend ARRL Handbook but it's not a good starting point, in my opinion.
>Are there any encrypted channel walkie talkies that would be good enough for use or what?Civilians aren't allowed to use those.