Does ANSW C63.4 call for the complex impedance, or just the magnitude of the reflection coefficient, or the return loss? If the latter, then a spectrum analyzer, a signal source, and a return loss bridge would work. I assume the three items need current calibrations and that an error analysis needs to be performed. Sounds easier to send the LISN to a certified cal lab. Dave Cuthbert Micron Technology
From: [email protected] [mailto:[email protected]] On Behalf Of Bill Stumpf Sent: Wednesday, May 05, 2004 12:50 PM To: '[email protected]'; [email protected] Subject: RE: In-house LISN calibration Tim, The standard to be used for LISN calibration is ANSI C63.4. The insertion loss can be measured using a spectrum analyzer, but I am not aware of a method to use a spectrum analyzer for the impedance. We use a S-Parameters Network Analyzer. Bill -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Wednesday, May 05, 2004 12:15 PM To: [email protected] Subject: In-house LISN calibration Hello, I have an HP 3589A Spectrum/Network Analyzer. I was wondering if there is any way to do in-house calibration of the LISNs. I need to verify the impedance and the insertion loss of each LISN. I'm not sure if the unit I have will do the job. I need the calibration procedure to be accepted by various agencies (via ANSI C63.4 / CISPR standards). I don't want just a "verification procedure". Anyone know how this can be done? Thanks. Tim Pierce
