Last Sunday, playing a gig with my guitar buddy in New Jersey, he had a problem with his wireless mic which he has been using for a few years ... he had it plugged into his Fishman amp, which he has done before, but the sound was all 'buzzy' and not clear at all ... he tried new batteries, different channels, etc. etc. but nothing worked ... he used another mic with a wire plugged into the same amp channel he was using for the wireless and it sounded fine ...
This was at a fairly new high end independent living venue where we have played a few times before and one other time he had a similar problem ... could it be that they have something there that is interfering with the signal for his wireless mic?
Thank you