I have two Audio Technica Pro88w, the ones with two selectable frequencies.

When using them together, I obviously set one to frequency A, the other to frequency B.

I'm thinking of buying or renting another one for a scene with 3 actors, so each actor is wired separately.

I'm thinking of getting the Sennheiser, that seems to be the one everyone likes. I just need to make sure (I guess) the Sennheiser doesn't interefere with the frequencies the Audio Technica uses. The Sennheiser is very selectable right? I should be able to look up the frequency the ATs are using, and make sure the Sennheiser is using something different.

Just asking for a reality check - that makes sense, and ought to work?

thanks.

The Audio Technica works on VHF and the Sennheiser works on UHF. Should be no problem. The only thing that might be a problem, is that the Sennheiser might be cleaner.