After listening to this thread, it brings up a question that I have had over the years regarding limit lines and passing margins.
Are there "EMI guard bands" already built into the limit lines? I find it very difficult to believe that a group of reasonable people developing a limit line would have determined that they had thought of every possible EMI interference issue and would not have built a "safety margin" into that limit. Does anyone have any historical development data or insights into the creation of limits? Bob Heller 3M Product Safety, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 ------------------------------------------- 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: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] 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.

