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Re: [RFI] Solar Panel RFI Case In Kings Park, N.Y. : Update #3

To: rfi@contesting.com
Subject: Re: [RFI] Solar Panel RFI Case In Kings Park, N.Y. : Update #3
From: Tony <dxdx@optonline.net>
Date: Thu, 28 Jun 2018 17:39:48 -0400
List-post: <mailto:rfi@contesting.com>
Dave:

Not a bad idea. However, I would suggest skipping the "middle man" and going straight to the ARRL Spectrum Defense Fund lawyers. Better still, an online petition sent to every ham via QRZ with the backing of the ARRL.

Most hams use QRZ these days so there's certainly a large audience. I'm sure the folks at QRZ would sponsor such a petition as well. A popup that shows up when you login to QRZ describing the issue with a link to the petition would work well.

Anyone know who the top-guy is at QRZ?

Tony -K2MO





On 6/28/2018 2:11 PM, David Eckhardt wrote:
*_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 <mailto: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
    <mailto:rfi-bounces@contesting.com>> On Behalf Of Tony
    Sent: Thursday, June 28, 2018 1:43 AM
    To: rfi@contesting.com <mailto: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
    <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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