Charles, As far as I am aware the FCC regs now use the CISPR22 conducted emissions limits for the AC mains port and the radiated emissions measured at 3m for a class B device.
CISPR22 radiated emissions are measured at 10m (for Class A and Class B) and are not measured at 3m (as per the FCC set up for Class B devices). So it may be possible (and valid) to have a FCC Class B report with RE at 3m (using FCC RE set up) and CISPR22 AC mains port conducted emissions but not valid to have a FCC Class (A or B) report with RE at 3m using CISPR22 RE limits. Andy _____________________________ Andy White EMC Engineer Nokia Mobile Phones San Diego, CA Tel 858 831 4534 andy.wh...@nokia.com _____________________________ From: ext Charles Grasso [mailto:cgrassospri...@earthlink.net] Sent: Tuesday, August 12, 2003 9:38 PM To: Emc-Pstc Subject: Q on FCC and CISPR data All, In order to harmonize fully with the ROW, the FCC has amended Part15 to include the CISPR conducted limits with a transition period. Heres my question: Can one now mix and match limits? For example, I reviewed a Class B report only to discover that the radiated emissions were done to FCC (@3M) and the conducted to CISPRB. Is this OK and by that I mean legal. I don't like it:- I think one selects the desired limits FCC or CISPR and tests all FCC or all CISPR. Comments as always welcome (especially from test houses) Charles Grasso 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org 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
