Interesting question!
Water is a dielectric with absorptive properties that are frequency dependant. The most well-known peak absorption is the microwave oven 2.4GHz frequency. If you are having EMI issues in this frequency area, you may want to wait for a high-humidity day. 8-) In practice however, I cannot imagine that you would see much variation due to atmospheric RH. Certainly other measurement variation factors would outweigh the water contribution, IMHO. …Marko _____ From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Elliott Mac-FME001 Sent: Friday, January 13, 2006 11:20 AM To: emc-p...@ieee.org 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 emc-p...@ieee.org 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 emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com 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 emc-p...@ieee.org 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 emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
