I read in !emc-pstc that George Stults george.stu...@watchguard.com
wrote (in ea1b3684d553cbc96c23d33894bdfe4c3c350...@watchguard.com)
about '-2dB margin', on Thu, 3 Jan 2002:
After talking with some other folks, I've found that one can concoct a 2 dB
margin from CISPR 22 [the section I
: Pettit, Ghery [mailto:ghery.pet...@intel.com]
Sent: Wednesday, January 02, 2002 8:39 AM
To: George Stults; 'emc-p...@majordomo.ieee.org'
Subject:RE: -2dB margin
Just got back from Christmas vacation, but I'll wade in now...
There is nothing in CISPR 22 that refers to a 2 dB margin
Just got back from Christmas vacation, but I'll wade in now...
There is nothing in CISPR 22 that refers to a 2 dB margin for compliance
when a single sample is tested. The only document I ever recall seeing that
requirement in is VDE 0871/6.78, paragraph 4.1.3.1. This document was
published in
Hi George,
I don't think the margin makes any difference in applying the 80/80 rule.
If you have a series produced product you must apply the 80/80 rule using a
sample size of not less than 5 and not more than 12 pieces. See Clause 11,
Assessment of conformity of equipment, of CISPR 11: 1999.
4 matches
Mail list logo