Re: Wireless Mics in the UK
A few years ago we were providing for a band from the US who were touring with all their own radio kit. The drummer managed to turn on his IEM receiver before the transmitter was powered up. He got a full-volume blast of white noise through his earphones. I still remember the violence with which he ripped them out of his ears.
I'm not sure what the root cause of the problem was, but I've always taken it as a lesson to careful with non-native RF kit and keep a close eye on squelch settings.