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241. Re: [RFI] Noise on 3513.5 (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Fri, 5 Sep 2014 22:49:39 +0000; I wouldn't spend a lot of time trying to locate the source in my neighborhood until I had hit the main breaker in my house. It is just much easier to do that, even with a minor inconvenience, than it; /archives//html/RFI/2014-09/msg00015.html (10,477 bytes)
242. Re: [RFI] 160 meters RFI caused by low voltage bookcase lights (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Tue, 30 Sep 2014 15:43:01 +0000; ARRL has very few reports of these things that have specific model numbers, so yes, please, send the information on any that cause interference to rfi@arrl.org. The rules require the following: 1. Th; /archives//html/RFI/2014-09/msg00079.html (12,475 bytes)
243. Re: [RFI] 160 meters RFI caused by low voltage bookcase lights (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Tue, 30 Sep 2014 15:44:21 +0000; At those levels, there is little doubt in my mind that this exceeds the FCC limits for emissions. Let me know what model number this is and we can get one and test it. Ed, W1RFI Late last week I enco; /archives//html/RFI/2014-09/msg00080.html (8,828 bytes)
244. Re: [RFI] RFI Success (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Mon, 19 Jan 2015 17:02:09 +0000; A great lesson, Tom, and thanks for sharing it. Do you have the model number of the offending device? I'd like to get one and test it to see if it meets or exceeds the FCC conducted noise limits. Ed,; /archives//html/RFI/2015-01/msg00157.html (9,183 bytes)
245. Re: [RFI] RFI Success (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Mon, 19 Jan 2015 19:58:44 +0000; Thanks. That's an easy one and we don't need to do any testing. But if we do know of devices that generate more than S9 noise from a house next door, the Lab wants to get reports because we can test; /archives//html/RFI/2015-01/msg00164.html (10,365 bytes)
246. Re: [RFI] Low RFI 60w CFL bulb (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Mon, 23 Feb 2015 15:04:23 +0000; When CFLs first appeared, ARRL bought a mess of them from the big box stores and found that the ones being sold are pretty RF quiet. They were better than the FCC Part 18 limits, often by quite a bit; /archives//html/RFI/2015-02/msg00055.html (10,784 bytes)
247. Re: [RFI] Electric Fence pulsing (will get worse soon !) (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Wed, 22 Jul 2015 21:17:12 +0000; Ed Hare, W1RFI Worked on many, many electric fences in CO growing up farming and ranching throughout Pueblo County. Big to small farms and all kinds of animals. One thing farmers do is always try it; /archives//html/RFI/2015-07/msg00046.html (16,865 bytes)
248. Re: [RFI] LED lighting (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Mon, 27 Jul 2015 15:04:14 +0000; I bought one multi-LED bulb that came from China. It was dead quiet. My guess is that it simply put the LEDs in series and connected them to the line. Not all of them will have a switcher in them. AR; /archives//html/RFI/2015-07/msg00064.html (10,592 bytes)
249. Re: [RFI] LED lighting (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Mon, 27 Jul 2015 15:23:18 +0000; We haven't done any of that sort of thing, David. It's hard enough to find the time to test the products we test. Unfortunately, there is probably little that can be done about such QC problems. FCC; /archives//html/RFI/2015-07/msg00066.html (10,334 bytes)
250. Re: [RFI] LED lighting (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Mon, 27 Jul 2015 15:25:53 +0000; Actually, we don't. We have the screen room to do receiver and transmitter testing, and a room set up in compliance with ANSI C63.4 to do conducted-emission measurements, but not an anechoic chamber.; /archives//html/RFI/2015-07/msg00067.html (12,648 bytes)
251. Re: [RFI] LED lighting (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Mon, 27 Jul 2015 16:59:11 +0000; Great. I also have a ham who works in the electric-utility industry sending me one to test. They will not all be made by one company, but this is a very encouraging sign. The LED bulb is NOT an RF-dr; /archives//html/RFI/2015-07/msg00070.html (15,766 bytes)
252. Re: [RFI] LED lighting (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Mon, 27 Jul 2015 17:49:41 +0000; We have tried to take the issue of LED traffic lights to the FCC. Based on the reported signal levels, it is very likely that they meet the FCC emissions limits for conducted emissions below 30 MHz a; /archives//html/RFI/2015-07/msg00077.html (12,581 bytes)
253. Re: [RFI] LED lighting (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Mon, 27 Jul 2015 18:09:24 +0000; ARRL just turned in 3 more measured results of grow lights operating way above the FCC limits. Please don't let that bone go... THANK YOU for your past and future work as well!!! -- Thanks and 73's,; /archives//html/RFI/2015-07/msg00078.html (9,829 bytes)
254. Re: [RFI] LED lighting (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Mon, 27 Jul 2015 21:33:57 +0000; Do these look like LED lights from the ground? I can be on the lookout for them here, too. If we ever start seeing noisy LED streetlights, we are in BIG trouble. Ed, W1RFI Hi, As I said, (and told th; /archives//html/RFI/2015-07/msg00086.html (11,795 bytes)
255. Re: [RFI] Birdies every 8.5 kHz (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Mon, 27 Jul 2015 21:35:45 +0000; "Birdies" can mean any of a number of things. They could be rock-steady carriers, they could be the modulation or modulation sidebands of a digital signal or they could simply be broad peaks in the n; /archives//html/RFI/2015-07/msg00087.html (12,580 bytes)
256. Re: [RFI] LED lighting (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Tue, 28 Jul 2015 00:38:23 +0000; Oh, that is scientific enough, Dave, telling me that the noise is below the measurement noise floor of an active loop and spectrum analyzer. Good job! Hi, These lights are obviously LED, several very; /archives//html/RFI/2015-07/msg00094.html (14,364 bytes)
257. Re: [RFI] LED lighting (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Tue, 28 Jul 2015 00:46:18 +0000; Thanks. Any and all reports are really appreciated. I am glad not to hear of major problems, but a "bad" manufacturer could crop up at any time. I want to build on my IEEE connection to the Power and; /archives//html/RFI/2015-07/msg00095.html (10,460 bytes)
258. Re: [RFI] LED lighting (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Tue, 28 Jul 2015 00:50:24 +0000; Here is one offer you can make that may sweeten the pot. Offer to buy him replacement bulbs. If you tell me the size and type, I will buy 6 of them at Home Depot, test them for noise and if they are; /archives//html/RFI/2015-07/msg00096.html (10,544 bytes)
259. Re: [RFI] LED lighting (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Tue, 28 Jul 2015 17:55:45 +0000; I would think yes, but the hard part is convincing the FCC that they need to worry about a hypothetical scenario. The EMCom communications generally are in theory designed to accommodate existing reg; /archives//html/RFI/2015-07/msg00101.html (10,268 bytes)
260. Re: [RFI] Other Noise Challenge For Ed! (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Tue, 28 Jul 2015 17:57:02 +0000; I'd love to see that graph, or the measured data, if you still have it. It may be useful on RFI web pages or publications. Joe, A few years ago, I had a RFI source from an area with underground utili; /archives//html/RFI/2015-07/msg00102.html (12,125 bytes)

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