Yes, I will do this Kermit. I agree data collection is the first step. Powerline RFI has always been a pet peeve for me, but this new threat is going to proliferate faster I think. The LED stuff is recent and my below example began 6 months ago after a major local interchange was rebuilt. Since then I have become aware of other new intersection noise I first thought was powerline sourced, not LED device driven. Thanks. Bob Famiglio, K3RF Vice Director, ARRL Atlantic Division 610-359-7300 www.QRZ.com/db/K3RF From: Kermit Carlson [mailto:w9xa@yahoo.com] Sent: Monday, August 01, 2016 2:25 PM To: Bob Famiglio, K3RF; 'arrl-odv' Subject: Re: [arrl-odv:25544] Re: This Will Become A Bigger Problem - And We a Should Have A Game Plan Hello Bob; When you encounter situations like this please contact MIke Gruber W1MG at the lab with the details. The lab has been very actively looking into the problems of interference caused by LED lighting systems but there is a lack of feedback from the field. Also, please encourage hams that you know have encountered these types of problems to contact the lab by email. The ham in the article that was posted by N5AUS had not contacted the lab, and had the reporter not contacted Mike, this particular case would have been an unknown situation. The issue of measurement at VHF for LED lighting devices is a significant issue that is being looked at by the lab and Chris. If harmful interference exists to a licensed radio service the operator of the device must mitigate that interference. 73, Kermit W9XA _____ From: "Bob Famiglio, K3RF" <RBFamiglio@Verizon.net> To: 'arrl-odv' <arrl-odv@arrl.org> Sent: Monday, August 1, 2016 11:58 AM Subject: [arrl-odv:25544] Re: This Will Become A Bigger Problem - And We a Should Have A Game Plan It is already a bigger problem. Some brands of new traffic light LED bulbs seem noisy. In Southeastern Pennsylvania at least, all the traffic lights for state roads being replaced by PennDot with LED lamps exhibit broadband type noise. I live one county over from Bucks County, PA where the ham in the article lives. Here in Delaware County, PA, the new LED traffic lights cause significant noise even up at VHF High band (for us 144 to 148 MHz). While driving through newly re-lamped intersections, moderately strong two meter FM signals are blanked out as the strong noise masked the signal and closes the squelch. This begins almost 300 feet from the closest LED traffic light. In large interchange intersections with coordinated lights for 600 feet (US Route 1 and PA 252 for eg.), the dead zone is a significant period of drive time, especially if one gets caught at one or more of the lights. I hear the same noise up on public safety UHF-T band (500 MHz), but it is not as strong. I do not yet work HF mobile so I have not checked. Is this our new BPL level of threat? LED lighting may end up as our biggest spectrum threat yet. Bob Famiglio, K3RF Vice Director, ARRL Atlantic Division 610-359-7300 www.QRZ.com/db/K3RF From: arrl-odv [mailto:arrl-odv-bounces@reflector.arrl.org] On Behalf Of Christopher Imlay Sent: Monday, August 01, 2016 11:42 AM To: N5AUS Cc: arrl-odv Subject: [arrl-odv:25542] Re: This Will Become A Bigger Problem - And We a Should Have A Game Plan John thanks for sending that. I have relayed it to Ed Hare and Mike Gruber and Kermit Carlson and we will see if we can help with this. It may be a good test case for RF lighting interference. Mike and Ed have several of these of course but the press coverage makes it a bit more compelling. 73, Chris W3KD On Sun, Jul 31, 2016 at 8:07 PM, N5AUS <N5AUS@n5aus.com> wrote: Buzz kills the fun for Bristol Township ham radio operator | Local | buckscountycouriertimes.com <http://www.buckscountycouriertimes.com/news/local/buzz-kills-the-fun-for-bristol-township-ham-radio-operator/article_a5e03722-4854-11e6-ba19-3773ecb24e3a.html> from Jeff Davis’s Tweet <https://twitter.com/ke9v/status/759891737041133568?refsrc=email&s=11> Download <https://twitter.com/download?ref_src=MailTweet-iOS> the Twitter app Sent from my iPad _______________________________________________ arrl-odv mailing list arrl-odv@reflector.arrl.org https://reflector.arrl.org/mailman/listinfo/arrl-odv -- Christopher D. Imlay Booth, Freret & Imlay, LLC 14356 Cape May Road Silver Spring, Maryland 20904-6011 (301) 384-5525 telephone (301) 384-6384 facsimile W3KD@ARRL.ORG _______________________________________________ arrl-odv mailing list arrl-odv@reflector.arrl.org https://reflector.arrl.org/mailman/listinfo/arrl-odv