Ralph, ANSI C63.4 also has the procedure: Section 4.1.2 and Annex E.
In short, it's a verification of the LISN impedance and insertion loss characteristics. Typically this requires a network analyzer to perform the verification. Also, if you use AC line filters on the line side of the LISN those should be part of the LISN impedance characterization (no AC mains connected naturally). Regards, Dave Spencer EMC Engineer Xerox Corp. From: [email protected] [mailto:[email protected]] On Behalf Of Ralph McDiarmid Sent: Tuesday, January 27, 2009 12:41 PM To: [email protected] Subject: RE: Calibration Standards for LISN I don't have a copy of CISPR 16 to reference and so I am curious about how one calibrates an AMN? (or an antenna for that matter). I can see characterizing the AMN so that its transducer factor versus frequency is known and can be then used to calculate a uV level. Ralph McDiarmid, AScT Compliance Engineering Group Xantrex Technology Inc From: [email protected] [mailto:[email protected]] On Behalf Of John Woodgate Sent: Tuesday, January 27, 2009 5:22 AM To: [email protected] Subject: Re: Calibration Standards for LISN In message <[email protected]>, dated Tue, 27 Jan 2009, Grace Lin <[email protected]> writes: >For LISN calibration, what are the calibration standards that I should >fill in in the questionaire requested by a calibration lab? Are ANSI >C63.4, CISPR 15, and CISPR 22 appropriate? These are three test >standards I use most. No, LISN calibration is in CISPR 16-1-2, where they are called Artificial Mains Networks (AMNs). See clause 4 and Annex A. It is a good move to get your LISNs calibrated. Recent experience at a test house showed significant differences between supposedly good LISNs. -- 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]> - 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]>
