On Monday 18 December 2006 04:26, David Baron wrote: > Ever read that FCC certification on the back of your machine? > Its interference to the outside world is below certain limits > and it must accept all interference from the outside. Thanks a > bunch. Even after 30 years of playing with FCC-certified toys, I've never understood that wording. Most computer equipment I've used has at least SOME shielding from outside RFI, which would seemingly violate the terms you're describing, which are from FCC Part 15. I've heard people claim that it was just intended to provide a shield to the manufacturers against consumer complaints when RFI did impair their use of the product, but I would think they'd have made that a little less cryptic. Has any audio or computer equipment manufacturer ever been fined by the FCC for NOT crashing when the neighbor turns on his blender (or when the guys in dark sunglasses sitting in the flower delivery truck in the parking lot turn on their computer-crashing ray gun?) This seems like one of those "Straight Dope" kind of questions, but I can't find a definitive answer. Rob
