I read in !emc-pstc that [email protected] wrote (in <OF9EA48C69.E [email protected]>) about 'E- field drop off with distance (1-30MHz)' on Mon, 15 Dec 2003: >I know the following holds for uncorrelated line sources (e.g., a line >of fluorescent lamps), but I am not sure about correlated sources such >as signal leakage from a power line. But here goes anyway. > >If the power line is taken as a uniform line source, is straight, and is >long compared to the distance from the observation point to the line, >then the e-field would fall off as 1/sqrt(r) (once beyond the near field >region).
AIUI, it is 'even more true' for a homogeneous source. -- 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.ieee-pses.org/ 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] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
