Mac, The biggest effect I've seen was due to the fire retardant in the old cones absorbing moisture and subsequent dielectric changes. We had to put in a humidity controller to keep the chamber and cones at the same RH all the time to get consistant measurements. Bill
"Barron, Manny" <[email protected]> wrote: Hello Mac, I don't know the actual physical effect, but there is a requirement in the ANSI C63.4, para 6.1.9. Sincerely, Manny Barron, EMC Engineer Northrop Grumman Mission Systems Intelligence Systems Division Electromagnetic Systems Laboratory 6! 377 San Ignacio Avenue San Jose, California 95119 Phone: 408-531-2430 Email: manny.barron@ <mailto:[email protected]> ngc.com Web: www.ngc.com <http://www.ngc.com/> _____ From: [email protected] [mailto:[email protected]] On Behalf Of Elliott Mac-FME001 Sent: Friday, January 13, 2006 11:20 AM To: [email protected] Subject: Humidity and Radiated Emissions Tests Colleagues, What is your opinion - does relative humidity have an effect on radiated emissions testing [as long as there is no condensation on the EUT]? Just curious as to the thoughts out there [or experiences] Best regards, Mac - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the! list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc _____ Yahoo! Photos – Showcase holiday pictures in hardcover Photo Books <http://us.rd.yahoo.com/mai _us/taglines/photobooks/*http://pa.yaho .com/*http://us.rd.yahoo.com/mail_us/ta lines/photos/evt=38088/*http://pg.photo .yahoo.com/ph//page?.file=photobook_splash.html> . You design it and we’ll bind it! - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
