Hello Jenkins, As long as the levels in the restricted bands are below the limits specified in 15.209, you should be okay. No frequency (fundamental or harmonic or 'internal functioning') within a restricted band can exceed the levels specified in 15.209.
Regards, Bandele Jetstream Communications, Inc. badep...@jetstream.com -----Original Message----- From: JENKINS, JEFF [mailto:jeff.jenk...@aei.com] Sent: Wednesday, May 24, 2000 7:38 AM To: emc-p...@majordomo.ieee.org Subject: ISM prohibited frequencies I have a question about ISM prohibited frequencies according to 47 CFR Part 18. Section 18.303 says that "operation" in the prohibited frequency bands is not allowed. My question is, what is their interpretation of the word "operation"? 1.) If the equipment in question uses these frequencies only for internal functioning, is it still prohibited? (In other words, the energy does not intentionally leave the equipment enclosure.) 2.) If the equipment sweeps through a prohibited band while it auto-tunes, is this a problem? 3.) What if the fundamental operating frequency of the equipment is outside the prohibited bands, but there is significant harmonic energy within a prohibited band? Thanks, Jeff Jenkins Regulatory Compliance Advanced Energy Industries, Inc. Fort Collins, CO USA ------------------------------------------- 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
