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361. Re: [RFI] Samsung oven RFI update (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Fri, 24 Apr 2020 17:48:24 +0000; Samsung may have an actual fix. i would imagine that this is major concern to them because an stove or oven that turns on unexpectedly is fire risk, whether it is the stovetop or oven. Gents, I wound; /archives//html/RFI/2020-04/msg00077.html (8,764 bytes)
362. Re: [RFI] Samsung oven RFI update (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Wed, 6 May 2020 17:07:40 +0000; I do know that Paul Cianciolo has worked with a few hams on this issue. I am not sure if he made any headway on it with Samsung, but I will see him later this week and I can ask. He reads most of the; /archives//html/RFI/2020-05/msg00025.html (13,755 bytes)
363. Re: [RFI] Samsung oven RFI update number II (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Sat, 23 May 2020 14:14:41 +0000; A stove that turns on due to external events is broken. What they are telling you is that it is broken but they don't know how to fix it. Ed If it is new, tell the company that sold it to you, you wa; /archives//html/RFI/2020-05/msg00073.html (22,823 bytes)
364. Re: [RFI] Noise centered around 20 meters (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Sat, 23 May 2020 23:37:02 +0000; Even without social distancing, that can be a challenge at best. The neighbor probably bought some device or another that is making noise. Let's assume he bought a whole basement worth of commercial; /archives//html/RFI/2020-05/msg00085.html (16,112 bytes)
365. Re: [RFI] Samsung Oven Update #3 (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Fri, 29 May 2020 20:54:51 +0000; In my experience, when companies feel there is some potential product liability, they generally move pretty quickly. When Eaton, for example, found that its AFCIs were tripping, they put engineers on; /archives//html/RFI/2020-05/msg00125.html (10,350 bytes)
366. Re: [RFI] Report on 12V 750W server supplies (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Fri, 5 Jun 2020 16:23:59 +0000; Allthough cranking the voltage past 13.8 volts probably won't damage anything, there is no guarantee to that, so just keep that n mind. Aslo, for something like server supply, this could well be a Cl; /archives//html/RFI/2020-06/msg00005.html (9,335 bytes)
367. Re: [RFI] Covering Solar Panels To Assess RFI (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Wed, 26 Aug 2020 13:27:57 +0000; I think that it is highly unlikely that the panels themselves are creating noise. Paul Cianciolo, W1VLF, has a Solar Edge system at his house. He had found the usual wiring, grounding and optimizer i; /archives//html/RFI/2020-08/msg00035.html (12,086 bytes)
368. Re: [RFI] Covering Solar Panels To Assess RFI (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Wed, 26 Aug 2020 16:11:41 +0000; Although it seems intuitive that escalating these problems to the FCC or other actions with legal implications will speed things up, just the opposite it true. Right now, we have good contact with So; /archives//html/RFI/2020-08/msg00037.html (15,577 bytes)
369. Re: [RFI] FM Wireless Mic on 144.160MHz (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Sun, 30 Aug 2020 14:41:16 +0000; It should be easy enough to look at the unit itself and see what frequency it uses. If it is not FCC certificated, then it could be high powered operating on any frequency. __________________________; /archives//html/RFI/2020-08/msg00063.html (10,985 bytes)
370. Re: [RFI] Covering Solar Panels To Assess RFI (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Sun, 30 Aug 2020 15:50:09 +0000; This could be misleading. In the unlikely event that the panels themselves are generating noise, disconnecting them from the optimizers would remove them from a large length of common-mode radiator.; /archives//html/RFI/2020-08/msg00064.html (11,497 bytes)
371. Re: [RFI] Covering Solar Panels To Assess RFI (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Mon, 31 Aug 2020 18:33:00 +0000; I am not sure that I would say that "Solar Edge" believes the panels are noisy. One engineer or installation technician may have said that, but I've never heard that from our high-level engineering c; /archives//html/RFI/2020-08/msg00068.html (9,935 bytes)
372. Re: [RFI] Soliciting Help From Certified RF Engineer (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Wed, 2 Sep 2020 14:45:43 +0000; You can do this, Tony, but it could be counterproductive. Under Part 15 rules, there are no specific emissions limits for radiated emissions for unintentional emitters below 30 MHz. All indications a; /archives//html/RFI/2020-09/msg00004.html (9,925 bytes)
373. Re: [RFI] Soliciting Help From Certified RF Engineer (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Wed, 2 Sep 2020 15:53:45 +0000; Yes, harmful interference is the basis on which the FCC Enforcement folks resolve almost all of the complaints it receives. If three is an emissions violation, that gets handled by the Office of Engi; /archives//html/RFI/2020-09/msg00006.html (15,318 bytes)
374. Re: [RFI] Soliciting Help From Certified RF Engineer (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Thu, 3 Sep 2020 13:47:48 +0000; Yes, but those measurements might convince Solar Edge that you do not have a problem, which is exactly what we don't want What I recommend we do is to first have W1VLF use a probe and SDR to measure; /archives//html/RFI/2020-09/msg00013.html (9,915 bytes)
375. Re: [RFI] 433.92 remote control, legal? (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Fri, 4 Sep 2020 13:53:51 +0000; Part 15 has a section on periodic radiates that permit relatively high power to be used for remote control, weather stations and some warehouse industrial equipment. Yes. it is used under Part 15. I; /archives//html/RFI/2020-09/msg00020.html (8,842 bytes)
376. Re: [RFI] Inverters? (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Mon, 21 Sep 2020 11:57:41 +0000; When QST reviewed generators a few years back, we noticed a wide range in the stability of the motor speed and thus voltage vs load. For some, when we keyed a kW amplifier, the motor speed remained p; /archives//html/RFI/2020-09/msg00068.html (13,346 bytes)
377. Re: [RFI] 2 MW Solar Farm (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Tue, 22 Sep 2020 11:50:21 +0000; It probably is true, Jim. The EU has limits that apply in more circumstances than in the US. For example, below 30 MHz, the only US limits are that which are conducted onto the AC mains. There are no; /archives//html/RFI/2020-09/msg00088.html (9,915 bytes)
378. Re: [RFI] 2 MW Solar Farm (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Tue, 22 Sep 2020 13:46:07 +0000; If any of you all have an HF mobile set up and can go to one of these farms, please do and provide a report. Date/Time: Location (GPS coordinates and/or street address. Describe location if necessary; /archives//html/RFI/2020-09/msg00090.html (12,509 bytes)
379. Re: [RFI] RFI - A Losing Battle (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Tue, 22 Sep 2020 19:39:21 +0000; Yes, we might all benefit from a new agency, but this is not going to happen, so we will continue to do the best we can. To really understand this problem, we need to look at Sec. 15.3 closely. Here; /archives//html/RFI/2020-09/msg00097.html (13,333 bytes)
380. Re: [RFI] A LOSING BATTLE (score: 1): Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>; Date: Tue, 22 Sep 2020 23:38:28 +0000; Hi, Dave, A few amateurs have directly engaged the FCC. If they do so in a professional and respectful way, this really doesn't cause much harm, although over decades of time, ARRL staff have managed; /archives//html/RFI/2020-09/msg00110.html (13,159 bytes)

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