Where I have seen this practiced it was done so using a 5 meter distance in a listed SAC using the 10 meter CISPR 22 limit. The limit level was NOT increased on a linear interpolation, as there was no proof that the EUT's emissions exhibited a linear roll-off. All of this allowed the EUT to be tested in the same chamber with no movement or reassembly time incurred, and provide data which demonstrated good margin and provided a solid point from which to answer any questions that might be asked.
> JOHN E. STUCKEY > EMC Engineer > > Micron Technology, Inc. > Integrated Products Group > Micron Architectures Lab > 8455 West Emerald St. > Boise, Idaho 83704 > PH: (208) 363-5313 > FX: (208) 363-5596 > jestuc...@micron.com > > -----Original Message----- From: Wolak, Marvin [mailto:marvin.wo...@marconi.com] Sent: Friday, October 06, 2000 14:56 To: EMC-PSTC Newsgroup (E-mail) Subject: Antenna Distance Is 10m emissions testing going away or unnecessary? What does the future hold? (Please indicate degree of uncertainty when projecting future changes.) We are a global company and must meet all international requirements as well as Bellcore. The reason I ask this is that I keep hearing via third parties that some test lab or other is claiming that they do all certification testing in a 3m / 5m chamber. Regards, Marvin Wolak Marconi Communications marvin.wo...@marconi.com ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson: pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson: pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
