You pretty much want your Security and A/V communications to live in separate world. We are using the Little bit more expensive motorola 2 way radios for out security, ushers and parking lot. The A/V communications is a full blown Clear Com 4 channel matrixed base station with a Telex BTR 800 wireless system occupying part of it. Most of the stations are wired with belt packs. The stage crew has 2 of the wireless belt packs, the Director has one and there will be a Video lead position that has one soon.
Peace (Phil 4:7)