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381. Re: [RFI] RFI - A Losing Battle (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Tue, 22 Sep 2020 23:58:34 +0000
Yeah, although we do get the FCC to do some enforcement anyway. What is needed is a campaign to identify aggregious devices and report them to the FCC. ARRL has filed a few complaints about illegal d
/archives//html/RFI/2020-09/msg00111.html (19,367 bytes)

382. Re: [RFI] RFI - A Losing Battle (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Wed, 23 Sep 2020 00:05:18 +0000
Yes, and in response to a related question about how to approach a neighbor, this can be the real stumbling block. First, that neighbor does not have our understanding of the RFI issues. To our neigh
/archives//html/RFI/2020-09/msg00112.html (11,049 bytes)

383. Re: [RFI] RFI - A Losing Battle (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Wed, 23 Sep 2020 14:40:13 +0000
We did have a good case against Home Depot, although for a number of reasons, this didn't get followed up. We also had a problem with a Walmart device, but they stopped selling it after stockout, as
/archives//html/RFI/2020-09/msg00121.html (22,783 bytes)

384. Re: [RFI] RFI - A Losing Battle (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Wed, 23 Sep 2020 14:42:06 +0000
Part of the problem is that "enforcement" of harmful interference is handled by the Enforcement Bureau, which we have working somewhat well. The emissions and marketing violations are enforced by the
/archives//html/RFI/2020-09/msg00122.html (22,688 bytes)

385. Re: [RFI] Solar Farm Mobil measurement (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Wed, 23 Sep 2020 14:44:13 +0000
That is great data, Mike, thanks. In this case, it doesnt even look like a ham located nearby would have harmful interference, although there may be some noise. This actually matches my own experienc
/archives//html/RFI/2020-09/msg00123.html (10,388 bytes)

386. Re: [RFI] RFI - A Losing Battle (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Wed, 23 Sep 2020 23:37:39 +0000
It really is not that simple. I own "old construction" and my house is in pretty constant need of maintenance. Some people want a new home and in some areas, all of those come with CC&Rs. In some are
/archives//html/RFI/2020-09/msg00133.html (11,245 bytes)

387. Re: [RFI] pleasant surprise today from Solar Edge (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Thu, 24 Sep 2020 14:50:28 +0000
We have come a long way, but still have a ways to go. Fortunately, we are dealing with a company that is holding space for all of this and willing to work towards better and better solutions. The ini
/archives//html/RFI/2020-09/msg00145.html (15,769 bytes)

388. Re: [RFI] RFI - A Losing Battle (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Thu, 24 Sep 2020 15:30:29 +0000
I don't know why the FCC didn't follow up, but the lack of follow-up was on our end. A lot was going on at the time. Now that we can test again, I want to pick up on this, so poor W1VLF is going to h
/archives//html/RFI/2020-09/msg00146.html (25,332 bytes)

389. Re: [RFI] RFI - A Losing Battle (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Thu, 24 Sep 2020 15:31:52 +0000
As I said in another email, a chess game is not usually won in a single grand move. It is a gradual accumulation of advantage. I make those moves within the realm of the achievable and that sets the
/archives//html/RFI/2020-09/msg00147.html (24,944 bytes)

390. Re: [RFI] Question Regarding Variations In Solar Panel RFI? (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Mon, 28 Sep 2020 14:20:01 +0000
W1VLF is in a relatively quiet neighborhood. He, too, had loud spikes every 200 kHz, which did go away when they replaced the optimizers. The inverter at his QTH is still noisy, so he is working with
/archives//html/RFI/2020-09/msg00166.html (11,333 bytes)

391. Re: [RFI] pleasant surprise today from Solar Edge (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Mon, 28 Sep 2020 14:56:31 +0000
It is far from that simple, Cortland. "Enforcement" is a very broad term that can range from the advisory letters routinely mailed by the FCC in response to complaints about harmful interference to t
/archives//html/RFI/2020-09/msg00168.html (16,816 bytes)

392. Re: [RFI] pleasant surprise today from Solar Edge (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Mon, 28 Sep 2020 16:20:00 +0000
Its a little more complicated than that, Dave. ARRL is funded to do this sort of thing and members expect that for their membership dues, ARRL will do what it takes to help ensure as much of a noise-
/archives//html/RFI/2020-09/msg00170.html (21,495 bytes)

393. Re: [RFI] Question Regarding Variations In Solar Panel RFI? (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Mon, 28 Sep 2020 17:39:54 +0000
And even what is not connected to the system, but nearby. Any radiation from the system can be capacitively coupled or induced in nearby wiring and re-radiated. Grounds can be resonant or not resonan
/archives//html/RFI/2020-09/msg00171.html (9,932 bytes)

394. Re: [RFI] Question Regarding Variations In Solar Panel RFI? (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Mon, 28 Sep 2020 19:13:16 +0000
<We were able to isolate the noise from the solar panels and associated electronics by covering the panels and seeing it disappear.> This is no different from the noise change that occurs when the su
/archives//html/RFI/2020-09/msg00175.html (17,801 bytes)

395. Re: [RFI] Question Regarding Variations In Solar Panel RFI? (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Mon, 28 Sep 2020 19:16:41 +0000
I agree, but I like magic, so that's my story. Yes, one can actually do real science and come up with answers, but that often involved multiple interrelated phenomena that are best sorted out with ex
/archives//html/RFI/2020-09/msg00176.html (10,525 bytes)

396. Re: [RFI] Question Regarding Variations In Solar Panel RFI? (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Mon, 28 Sep 2020 20:28:50 +0000
< That has yet to be determined Ed. Tom Simpson (SE engineer) believes the RFI could be caused by the solar panels themselves which he said has happened in the past.> If that were the case, and I and
/archives//html/RFI/2020-09/msg00181.html (21,475 bytes)

397. Re: [RFI] Part 15 Rules Applicable to Solar Panel RFI (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Fri, 2 Oct 2020 13:54:28 +0000
Part 18 is primarily for intentional emitters that do not carry information. There are a number of ISM frequency bands allocated for ISM. Within those bands, no licensed user is offered any protectio
/archives//html/RFI/2020-10/msg00009.html (13,000 bytes)

398. Re: [RFI] NEW REFRIGERATOR/FREEZER from KITCHENAID (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Fri, 2 Oct 2020 20:48:00 +0000
When it comes to appliances, there may be nothing to enforce. Appliances are categorically exempt from any specific emissions limits under Part 15. A refrigerator with removed filtering components ma
/archives//html/RFI/2020-10/msg00011.html (10,988 bytes)

399. Re: [RFI] An entire village lost its broadband at the same time every day for 18 months (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Fri, 2 Oct 2020 20:52:32 +0000
What may help this in the relatively short run is that the IEEE EMC Society is developing an IEEE Recommended Practice that describes the steps that a power utility should take in response to complai
/archives//html/RFI/2020-10/msg00012.html (10,997 bytes)

400. Re: [RFI] Noisy PC Speakers (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Mon, 5 Oct 2020 15:59:10 +0000
The ARRL Lab received a report of interference from a Class D audio amplifier that had been installed about 500 feet from an amateur. We purchased a set of them, set them up in our C63.4 conducted-em
/archives//html/RFI/2020-10/msg00027.html (11,254 bytes)


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