In message <5d39f9c94199f64fa82e5809c702aa7c590...@z-160-100-30-229.est.ibm.com>, dated Wed, 2 Jan 2008, "Gordon,Ian" <[email protected]> writes:
>Clause 6.1 of CISPR 11 requires that ambient noise levels to be 6dB >below the specified limit. However for testing at a customer site i.e. >not on an OATS or in a chamber the level of ambient emissions may be >higher than this due to neighbouring factories or other sources. Can >anybody suggest how to achieve these measurements? EN 50217 does address this, and recommends using the method in CISPR 18-2. This is not a standard you (or practically anyone) is likely to have. I don't have Amendment 2, but the edition I have doesn't adequately address the problem of ambient noise levels, in paragraph 3 of clause 1.3.11. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk For very important information, please turn over. 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
