Hi Seven or eight years ago, I bough a used PSM200 system, and used it for several years. But about a year or two ago, it started having a problem I don't understand, and despite my best efforts to find a solution online, it appears I'm the only one with this problem (something I don't believe can be true). Symptoms are very simple and are easily reproduced. I start using the system (on any channel free channel), and about 20 minutes later, it happens all of a sudden: I start hearing A LOT of white noise, and the system becomes unusable. I shut it down for half an hour, and we're back to square one. Rinse, and repeat. I bought a battery tester, just to make sure I was using full batteries. Tonight, refusing to let it go, I went through the manual yet another time, and realized I own the European version (*-R8) with all channels located in the low 800 MHz. I don't think this is a real problem as all eight channels are always clear of interference when I test them, but I might be wrong. Anybody has experienced something like this before?