In message <[email protected]>, dated Mon, 18 Jun 2007, Bill Stumpf <[email protected]> writes:
>The latest version of EN 55022: 2006 allows 3-meter testing for some >Class B devices. Otherwise, 10 meters is the accepted test distance. That is true. But if you consider what 'Class B' implies in terms of practical separations between items of equipment, it is clear that even 3 m is unrealistic. Of course, testing at 1 m or less isn't practicable either. The Emperor of EMC really does have no clothes. (;-) -- 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 ______________________________________________________________________
