Here is the link http://www.conformity.com/0208izzy.pdf
Richard Woods Sensormatic Electronics Tyco International -----Original Message----- From: John Barnes [mailto:[email protected]] Sent: Tuesday, September 10, 2002 9:17 AM To: [email protected] Subject: Re: FCC Testing of Intentional Radiators EMC-PSTC'ers, I just ran across the following article on measuring low-frequency radiated emissions to meet FCC regulations: Straus, Isidor, "Loops and Whips, Oh My! On Low Frequency Measurements Issues," Conformity, pp. 22-28, August 2002. After reading your posts (especially the one from Michael Peters on 6 Sep 2002) and more studying of FCC Part 15, I believe the best procedure for FCC testing of intentional radiators is: 1. Measure radiated and conducted emissions just as we would do for any unintentional radiator. 2. Measure radiated and conducted emissions from the "lowest radio frequency generated in the device" on up to the specified highest frequency, to meet clause 15.33(a). I had followed this procedure to FCC test two 418MHz telemetry transmitters for a client. In this particular case I was comfortable, because Don Bush had tested previous products for this client this way, and they had all been licensed by the FCC without any problems. But I wanted more justification for not testing intentional radiations to FCC Part 15 clause 15.209(a) below the fundamental frequency, than "just because we've always done it that way". Thanks all! John Barnes KS4GL dBi Corporation http://www.dbicorporation.com/ ------------------------------------------- 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] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list" ------------------------------------------- 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] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
