Oh yes. It matters very much.
An interesting story- for anyone using
Sennheiser ew100's. The first generation, not the G2's. We used four of those along with seven
Shure ULX's and one
Shure LX. (The 8th ULX that we rented from a school was a J1 transmitter with an M1 reciever- I don't think that they realized that when they purchased it to replace the broken one from the previous summer.)
So, the
point is, the ew100's were all just weak. They didn't have the energy to penetrate through people dancing, and as a result were cutting in and out.
It wasn't the frequencies, we checked all of the good frequencies in the area... and it wasn't interference, we had the other three off and it was still too weak to push through people. The AF was hot, but the RF didn't like to be useful.
We determined that it was the transmitters themselves, which was kind of annoying.
Antenna placement:
Stage right, inside of a false
proscenium (the signal had to go through or around a 2x8 sheet of
luan, vertical, and some
burlap/duv.) To fix that, we ran a couple of
bnc runs out to the front of the
stage. That didn't work. We then moved one to another location, that didn't work. We finally moved them up high inside the false pro., above the
luan, and it still didn't work. It was only a problem when someone stepped into a certain spot directly between the transmitter and the antenna.
-Ben