Robert, Reference and therefore preferred test distance for measurements to CISPR 22 is 10 meters for both classes A and B.
Measurements at closer distances, including 3 meters are acceptable. In a case of dispute results from 10 meters will take precedence. Mirko Matejic Coauthor of CISPR 22, Editions 1 and 2 ---------- From: robert.m...@engineers.com To: emc-p...@ieee.org Subject: Distance of Measurements List-Post: emc-pstc@listserv.ieee.org Date: Wednesday, June 11, 1997 4:11PM For measuring emissions per CISPR 22B what is the proper distance for the placement of the antenna? Is it 3m? or 10m? [I'm running across reputable labs that claim there is nothing wrong with measuring everything at 3m, just like FCC B.] - Robert - robert.m...@engineers.com AJM Electronics --- ~ OLX 2.1 TD ~ You'd be surprised how much it costs to look this cheap.