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To: Bilow who wrote (31398)10/2/1999 5:21:00 AM
From: John Walliker  Respond to of 93625
 
Carl,
I've sometimes felt that the CE requirements are primarily there in order to cause trouble for US companies, and that the Euros don't enforce them so strictly on their own companies.

Many UK companies complain about the burden, but I think the UK are fairly rigorous on enforcement compared to some countries. There have been some prosecutions for sale of PCs with excessive emissions.


Incidentally, I've always felt that spread spectrum (where you deliberately jitter the system clock) techniques for "meeting" radiation compliance were a bad idea. It seems like I'm the only guy with this opinion, cause all my EE buddies tell me I'm wrong. Spread spectrum would be a lot easier with SDRAM, as it has a bit more margin to jitter around. It would surprise my buddies, but not me, if the FCC did something so as to prevent this particular technique. (Basically it broadens out the frequency peaks, so you stay under the limits, but it doesn't reduce the total amount of radiated energy.)


I totally agree with you !!!

John