[RFI] A Possible Solution to Solar Panel RFI

[Steve London]

Are there photographs of a properly installed SolarEdge optimizer, including the 
twisted wiring and ferrite installation ?

Would it be worthwhile to use a drone to, ahem, spy, on the installers, while 
they are working, to make sure they get it right ? Or afterwards, to pinpoint 
the mistakes ? Seems like it shouldn't take more than one revisit to get it right.

73,
Steve, N2IC


On 12/16/2019 12:39 AM, r55stan at gmail.com wrote:
> If you still have RFI after SolarEdge has been out to do their wire twisting
> and ferrite installation procedure, I suspect they may have missed one or
> more of the optimizers (DC to DC converters).  Even a single SolarEdge
> optimizer can radiate strong RFI if not well filtered with ferrites on the
> wires.  Call them back to fix it right.  I had a neighbor 150 feet away and
> it took four visits before they finally made the system quiet.  They even
> admitted that previous technicians missed a few panels.  So, at least the
> good news is they can be fixed.  The bad news is you have to keep after them
> until they do and also the endless addition of new SolarEdge systems that
> continue to be installed all around us.
> 
> Randy KQ6RS
> 
> -----Original Message-----
> From: RFI <rfi-bounces at contesting.com> On Behalf Of Tony
> Sent: Sunday, December 15, 2019 11:21 PM
> To: Rfi List <rfi at contesting.com>
> Subject: [RFI] A Possible Solution to Solar Panel RFI
> 
> All:
> 
> It's obvious that solar panel RFI comes from the devices within the system,
> so why not take a look at those components and propose a solution to the
> manufacturer?
> 
> There's lots of RF design talent on this reflector and I suspect there's an
> idea or two that could either reduce or eliminate RFI without having the
> manufacturer retool the assembly line.
> 
> Stopping the RFI at the source is better than discovering your neighbor has
> noisy solar panels and then waiting for legal action to be taken by the FCC,
> if at all.
> 
> For those wondering how bad solar panel noise can be: my neighbors system is
> 150 feet away from my tower and the noise is 10db over S-9.
> That's AFTER the chokes were applied to the system.
> 
> Tony -K2MO
> 
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