hes directly across the street from me, all the lots in the subdivision
are 80x180 ft, his array is on his rear roof, and my antennas are in my
back yard, so 260-285 ft, something like that....
------ Original Message ------
From: "Tony" <73guddx@gmail.com>
To: "Rfi List" <rfi@contesting.com>
Sent: 9/24/2020 12:52:38 AM
Subject: Re: [RFI] pleasant surprise today from Solar Edge
James:
Solar Edge used the same suppression techniques on my neighbors installation
and it only reduced the noise from S-9 +15 db to S-9 which is still very high.
I suspect that the suppression would be more effective on installations that
emit lower-levels of RFI so it would be interesting to know how strong the
noise was prior to the suppression being installed and what the results were
afterward.
The distance from your antenna to the solar panels is another factor so it
would be helpful to know that as well.
Congratulations.
Tony -K2MO
On 9/23/2020 9:29 PM, WW3S wrote:
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 succe
ssful !!! 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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