This brings to mind the FCC's decision in the BPL docket; if harmful interference to mobile amateur radio facilities is a stumbling block for BPL (that "exciting new technology"), simply redefine what constitutes harmful interference in that context, and the regulatory problem goes away. The disruption of communications doesn't go away, it just becomes not actionable any more. Christopher D. Imlay Booth, Freret, Imlay & Tepper. P.C. 14356 Cape May Road Silver Spring, Maryland 20904-6011 (301) 384-5525 telephone (301) 384-6384 facsimile W3KD@ARRL.ORG -----Original Message----- From: Sumner, Dave, K1ZZ, K1ZZ <dsumner@arrl.org> To: arrl-odv <arrl-odv@arrl.org> Sent: Mon, Aug 6, 2012 9:33 am Subject: [arrl-odv:21011] Re: harmful interference Thanks, Tom. Board members who have been around a while will recognize the name of Mike Marcus, N3JMM. A lot more work on protection criteria has been done in the ITU than is implied in the brief reference to footnote 28. The paper sometimes seems to confuse the concepts of harmful interference and protection criteria. For example: "It seems realistic harmful interference determinations will depend on realistic propagation modeling-something that some segments of the wireless community would like to avoid, if traditional models give them a better position." Modeling can only predict the probability of harmful interference -- it cannot determine whether harmful interference in fact exists. Dave K1ZZ -----Original Message----- From: arrl-odv-bounces@reflector.arrl.org [mailto:arrl-odv-bounces@reflector.arrl.org] On Behalf Of Tom Frenaye Sent: Monday, August 06, 2012 8:49 AM To: arrl-odv Subject: [arrl-odv:21010] harmful interference Interesting article about the FCC and the definition of harmful interference. We should watch for any developments. http://www.tvtechnology.com/feature-box/0124/ieee-group-recommends-clari fying-%E2%80%98harmful-interference-/214705 The IEEE white paper is here: http://www.ieeeusa.org/policy/whitepapers/IEEEUSAWP-HarmfulInterference0 712.pdf Tom ===== e-mail: k1ki@arrl.org ARRL New England Division Director http://www.arrl.org/ Tom Frenaye, K1KI, P O Box J, West Suffield CT 06093 Phone: 860-668-5444 _______________________________________________ arrl-odv mailing list arrl-odv@reflector.arrl.org http://reflector.arrl.org/mailman/listinfo/arrl-odv _______________________________________________ arrl-odv mailing list arrl-odv@reflector.arrl.org http://reflector.arrl.org/mailman/listinfo/arrl-odv