Hi Ken, Ahh the emissions analogy to the immunity tests? Hey - why not? After all there are plenty of conditions that arise NOT as an EUT problem but rather the artifical test environment that we use - i.e the OATS. We could then properly use a CALC without worrying about the cable radiation per se.
Otts equation (derived from Banalis) is pretty accurate to half a wave length - the trick is what do you do after that? (Actually we have developed a correction factor here at Echostar..stay tuned..) From: [email protected] [mailto:[email protected]]On Behalf Of Ken Javor Sent: Monday, July 07, 2003 8:29 AM To: Charles Grasso; Emc-Pstc; [email protected] Subject: Re: cable maximization - do you or don't you?? An excellent opportunity to ask a question of list members, especially those involved in standards writing. Why not calculate the cable conducted emission that would result in radiated spec level compliance, and levy a cable conducted emission requirement? Then OATS testing would not require cable manipulation, and any out of spec conditions would result from test sample enclosure emissions. > From: "Charles Grasso" <[email protected]> > Reply-To: "Charles Grasso" <[email protected]> > Date: Sun, 6 Jul 2003 13:53:40 -0700 > To: "Emc-Pstc" <[email protected]>, <[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 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
