And, while we're on the subject of CISPR 22:2006 Section 7, in 7.2.1.2 regarding ransom sampling/retesting, what is meant by "...from time to time..."? As this is so nebulous, how can it be quantified, or can it?
I look forward to your reply. Best regards, Ron Pickard [email protected] From: [email protected] [mailto:[email protected]] On Behalf Of John Woodgate Sent: Friday, April 10, 2009 9:06 AM To: [email protected] Subject: Re: Equipment in series In message <of8042504d.0de90ed8-on86257594.0048b0bc-86257594.0048d...@mmm.com>, dated Fri, 10 Apr 2009, [email protected] writes: >Thanks.............what does S represent in the formulas in 7.2.3 of EN >55022:2006? It's S_n, and it's the 'sample standard deviation', as opposed to the 'population standard deviation', which has 1/n instead of 1/(n-1) in the second equation in 7.2.3. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Things can always get better. But that's not the only option. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]> - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]>
