*Just a suggestion:* If every one of us sent this issue to our ARRL
section managers, Maybe, just MAYBE, ARRL would take notice and tickle
FCC. We need to cover the entire country with notifications to our section
managers. How about an effort launched from this forum?
Dave - WØLEV
On Thu, Jun 28, 2018 at 5:57 PM, Randy Standke <r55stan@gmail.com> wrote:
> I have a neighbor (3 houses away) with a SolarEdge system and on the first
> round of implementing the SolarEdge fix there was little improvement. They
> came back several more times and each time there was only a marginal
> improvement. Finally, the SolarEdge folks came and discovered that there
> were areas where they did not twist the wires and did not install the
> ferrites. So, it is quite possible in your case that the rework was not
> done correctly, or completely. It only takes one unfiltered optimizer to
> make a lot of RFI.
>
> Anyway, it is good that SolarEdge folks are flying out. I suspect they
> have
> seen many cases where their rework instructions were not correctly
> followed.
> If there is any good news in this, once the fix was properly installed the
> RFI was gone.
>
> 73,
>
> Randy KQ6RS
>
> -----Original Message-----
> From: RFI <rfi-bounces@contesting.com> On Behalf Of Tony
> Sent: Thursday, June 28, 2018 1:43 AM
> To: rfi@contesting.com
> Subject: [RFI] Solar Panel RFI Case In Kings Park, N.Y. : Update #3
>
> All:
>
> Some of you may recall that I've been dealing with RFI generated by a
> neighbors solar panel installation since the day it was installed in August
> of 2016. I promptly notified Solar Edge, the manufacturer, about the noise
> and they acknowledged (eventually) that their components were the cause of
> the RFI.
>
> Solar Edge: https://www.solaredge.com/us/home
>
> Update:
>
> Last week, on June 21st, Solar Edge sent a contractor (Solar City) to
> install RFI suppression to eliminate the RFI. The engineers from Solar Edge
> told me that they guaranteed it would work and that they've installed this
> type of RFI suppression many times before.
>
> Unfortunately, it had little to no effect. They used small clamp-on ferrite
> cores at the optimizers (noise generators) with one turn of cable around
> each core. The reason they gave for not using a large ferrite with multiple
> turns was that multiple turns could damage the cables -- go figure.
>
> They apologized for not solving the problem and are now flying their
> engineers in from the west coast to New York to inspect the work done by
> the
> installer. Once again, they assured me that problem will be solved.
>
> In my case, my neighbors installation is 150 feet from my antennas yet the
> RFI is strong at that distance. It's heard on 30 through 10 meters so HF is
> essentially unusable during the day while the system is active.
>
> My advise to my fellow hams is this: take a good look around your
> neighborhood and notice the number of solar panel systems popping up
> everywhere. Imagine trying to figure out which system among them is causing
> RFI and the task of knocking on doors to find out who manufactured the
> system or who the responsible party is.
>
> Solar panel systems are not going away so the potential for RFI issues are
> likely to become widespread. In fact, California plans on making solar
> panels mandatory on new homes beginning in 2020.
>
> I think most would agree that it's time for the ARRL and other advocates to
> make a serious effort to let the FCC know how serious a problem this is.
> Signed petitions by the 160,000 members of the ARRL sent to local
> congressmen might be a good place to start.
>
> Or, we can sit on our asses and say goodbye to HF.
>
> Tony -K2MO
>
>
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>
--
*Dave - WØLEV*
*Just Let Darwin Work*
*Just Think*
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