I think they use different radio bands, it’s probably the same communication system but on different bands (like we do in Police work). I’ve never seen a TB use it and I wouldn’t but I can see how they can get away with it. Being as TBs are seen less in the movies. They are seen talking but that’s about it. I’ve only seen 1 TD use it and it was pretty much in his backpack as he walked around. It was an outdoor event and with the DJ and all the people around you couldn’t hear it anyway. And most of it was in reference to squadrons, garrison, or TDs checking in. Now go have fun Matt! Sent from my iPhone using Tapatalk