Charles, I applaud your integrity! You are right to insist on maximization of cable placement when performing emissions testing. The ANSI document does indeed call this out, and the cable placement, as well as the peripheral equipment placement, should be maximized, of course while staying within the boundaries of the ANSI C63.4 definition and typical installation/setup of the EUT. As you know, the idea is to investigate the "worst case" emissions from the system (EUT) within the typical parameters of use of the EUT. Some laboratories do not do this because it may be difficult and time-consuming, but they are doing you a disservice. Continue to insist that your lab/OEM supplier follows the ANSI C63 test setup and procedures.
William M Stumpf DLS Electronics 166 South Carter St. Genoa City WI 53128 ph: 262-279-0210 fx: 262-279-3630 email: [email protected] From: Charles Grasso [mailto:[email protected]] Sent: Sunday, July 06, 2003 3:54 PM To: Emc-Pstc; [email protected] Subject: cable maximization - do you or don't you?? Hi all, I have recently run into an issue with an OEM supplier. The product that we are looking at fails emissions after cable maximization. In an informal study, I discovered that quite a few labs don't seem to perform cable maximization on a routine basis. ANSIC63 is quite clear on this - the cables need to be maximized. Is cable maximization a thing of the past - to be written out - and test labs are maximizing throughput rather than cables OR is is something I should continue to insist on?? Comments will be gratefully accepted. Charles Grasso EchoStar Communicationa This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
