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[RFI] pleasant surprise today from Solar Edge

To: "Rfi List" <rfi@contesting.com>
Subject: [RFI] pleasant surprise today from Solar Edge
From: WW3S <ww3s@zoominternet.net>
Reply-to: WW3S <ww3s@zoominternet.net>
Date: Thu, 24 Sep 2020 01:29:24 +0000
List-post: <mailto:rfi@contesting.com>
My neighbor across the street had a 21 panel Solar Edge array installed in May 2019, 6.5 kw I believe. I had the 18kc noise spikes, and the 200kc spaced optimizer noise. After working with Paul at the ARRL, who contacted the Solar Edge technical team on my behalf, Solar Edge committed to fixing the problem. They were supposed to come out in the spring, but of course current events prevented that. A visit was scheduled for early September, but the local crew needed to cancel. So I was suprised to see their van at the neighbors bright and early this morning. While the panels were disconnected, I took so more sdr sample screenshots, of course no noise. The engineer from Solar Edge appeared, and we had a brief chat about the course of action they were going to take. replace all 21 optimizers, twist all the DC wiring, and install ferrites on all the leads in to the optimizers. I had to leave for an appt this afternoon, and they were gone when I got back, but......it appears to be successful !!! The 200kc optimizer noise certainly is gone, no notice of it at all on the sdr, and the other noise seems gone as well. I only had a short time to check, but it certainly seems to have knocked most, if not all, of the noise down.....(insert emoji for jumping on soapbox) No matter how you feel about the ARRL, they are really the only game in town as far as supporting the amateur radio community with regards to RFI and spectrum defense. If you can spare a few bucks, send it to them. If you are not a member, think about joining.
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