In message <[email protected]>, dated Thu, 28 Jun 2007, "Kunde, Brian" <[email protected]> writes:
>Comparing the emissions limits at 3 meter (lets say 40dbuV/m) verses >the field strength of 3V/m (immunity test), if my math is correct, >isn't 3V/m about 130dbuV/m (e-field)? Yes. >At 10cm (4 inches), isn't the maximun field strength of a Class B >product about 70dbuV/m? No, you can't rely on the inverse square law in the near field. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk There are benefits from being irrational - just ask the square root of 2. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - 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 email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
