Re: -2dB margin

2002-01-04 Thread John Woodgate
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

RE: -2dB margin

2002-01-04 Thread George Stults
: 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

RE: -2dB margin

2002-01-02 Thread Pettit, Ghery
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

RE: -2dB margin

2001-12-27 Thread Jim Conrad
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.