Wireless Cracking and Popping

[cnl83]

Bought a Audio Technica ATW-251 in July.
http://www.music123.com/Audio-Techni...71905.Music123

It worked fine when for the 4th of July. I have used it only once, and I tried to use it at a gig last night, but I get random cracking and popping. I dont remember it doing that the first time I used it. Anyone else have wireless issues?

[heath_r_91]

It may be because the airwaves are more crowded now and I seem to believe that I heard VHF systems are more succeptable (I can't spell) to it that UHF systems.