RE: Conducted Line Emissions

Hello Dan, You have 2 interesting options open to you, but you do not have enough information for either. The FCC revised their Part 15 rules for conducted emissions this September essentially adopting CISPR 22, measuring in both QP and Ave. The product needs to pass both limits to establish

RE: Conducted Line Emissions

Pierce' dpie...@openglobe.net, emc-p...@majordomo.ieee.org m cc: (bcc: Wan Juang Foo/ece/staff/npnet) Sent by: Subject: RE: Conducted Line

Re: Conducted Line Emissions

Dan, Ask for the tabular QUASI-PEAK results against CISPR 22 limits from the lab if they told you your product failed FCC limits. I guess nobody can tell the pass/fail from the plot the lab presented to you. Leslie Dan Pierce wrote: Greetings: I am looking for proof that I can use the

RE: Conducted Line Emissions

Hello, Interesting, looks like you meet the old FCC requireemnts. I think the new FCC requirements are to the CISPR A and B limits. Regards, Ken Hall -Original Message- From: Dan Pierce [mailto:dpie...@openglobe.net] Sent: Thursday, November 07, 2002 1:05 PM To:

RE: Conducted Line Emissions

Dan, From the data provided one cannot make a pass/fail decision. The (old) FCC limits for power line conducted emissions are based on a quasi-peak detector. Going over the limit with a peak detector does not necessarily mean that the product fails as a peak detector quite often will read

Re: Conducted Line Emissions

Neither of these is the right detector if you interpret them strictly. A quasi-peak detector (what you are supposed to use to measure against the limit) has a response in between that of a true peak detector and an average detector. But a lot of times when they say peak they mean quasi-peak.