I read in !emc-pstc that Eric Penne <[email protected]> wrote (in <[email protected]>) about 'Apples and ? comparison of dBuV/m' on Wed, 6 Aug 2003:
>What I couldn't understand was how an average value from the RE scan >with a Res BW of 1MHz could subtract a peak value from the power scan >that has a Res BW of 100kHz? > >Is an average value with 1MHz RBW equal to a Peak value with 100kHz RBW? Not in general, of course. When you say 'average value, you mean 'value measured with the average detector', I suppose, not the average over the 100 kHz bandwidth, and by 'peak value' you mean 'value measured with the peak detector'. If so, and if the significant emission is a single spectral 'line', with bandwidth much less than 100 kHz, then the two values should be equal. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! 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
