In a message dated 11/11/2003 12:05:00 PM Central Standard Time, rehel...@mmm.com writes:
Is anyone (besides us) having any problems passing European Class B radiated emissions on devices that use USB2 communications? Does anyone know of a quiet USB2 laptop or PC? Any tips on isolating the noise to the PC or to the device? Emissions occur only when the devices are communicating with each other. Immunity such as 61000-4-6 is a problem as well. Hi Bob, I've tested an Intel MB with a MS USB mouse.. It looked very good for emissions. I've not done CI because the length is under 10 feet ( EN 61326 ) Cheers, Derek N. Walton Owner, L F Research EMI Design and Test Facility Poplar Grove, IL 61065
