Re: CISPR11 conducted emissions: add the LISN attenuation?

. Regards, Ed From: Patrick Lawler plaw...@west.net Subject: CISPR11 conducted emissions: add the LISN attenuation? Date: Thu, 13 May 1999 17:32:18 GMT To: emc-p...@majordomo.ieee.org Newsgroups: sci.engr.electrical.compliance When making CISPR11 conducted

RE: CISPR11 conducted emissions: add the LISN attenuation?

Patrick, CISPR 11, other CISPR Publications and FCC conducted emissions limits apply to the EUT port. LISN insertion loss should be added. In most cases, especially at higher frequencies correction for LISN's insertion loss is negligible to the overall test accuracy and therefore could be

CISPR11 conducted emissions: add the LISN attenuation?

When making CISPR11 conducted emissions measurements, should the measured value be adjusted to accommodate LISN attenuation? Phrased another way, do the CISPR limits apply to the EUT port or the RF port? Normally, I'd add the attenuation factor to compensate, but the specification calls out the