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.
Happy New Year to all! Best regards, Jim -----Original Message----- From: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of George Stults Sent: Monday, December 24, 2001 2:43 PM To: 'emc-p...@majordomo.ieee.org' Subject: -2dB margin Hello Group, I've been looking into the 80/80 rule for CISPR 22 compliance for mass produced equipment. I have found a description of the statistics in CISPR 22 :1997 Section 7.1 and 7.2. Its been my understanding that for testing at OATS, if the product has 2dB or less margin, then these statistical methods are required. Is that correct? And, where does the reference to '2dB margin' come from? Thanks in advance George S. ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: pstc_ad...@garretson.org Dave Heald davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: pstc_ad...@garretson.org Dave Heald davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
