[RFI] Ut oh. VisionSolar is parked next door.

[David Eckhardt]

Tony:

This is a bit similar to the time switching mode power supplies hit the
designers bag of tricks (early to mid 1970's??).  Sure, more efficient, but
a year or so later, the pages of EE Times and other publications were full
of, "OMG, these things produce all kinds of RFI" (and similar statements).
I was in the industry by that time, just out of school by 3 or so years,
and fully appreciated what was going.  Eventually, the FCC and other world
regulatory agencies came down on them.  They went quiet for a couple of
decades, but now, from China with no attention paid to the known problem,
they're back with a vengeance.   And now we have an FCC with no clout and
ignores Part 15, in general (maybe......just maybe, not in the case of
intentional radiators).  Possibly the solar industry will go the way of
SMPS's - hope......hope......hope.......

BPL came and went (FCC cheated on the in-situ tests documented and
presented in court by ARRL).  But ONLY after the FAA bitterly complained.
We had a live test of BPL here in my town of Berthoud, Colorado, in that
regard.  Unfortunately, I can not reveal all the  specifics.  Homeland
security and FAA were directly involved.  The system was active for no more
than 3-minutes when FAA issued a NOTOM (or whatever the aviation folks call
it) - an order - to keep a 50-mile radius away from Berthoud which is
airline distance only some 50-miles from DIA, the big airport in Denver.
However, when the FAA report hit the FCC (this is the part I can not
reveal), shit flew off the fan blades.  BL dies a quiet death.

The only tool the average amateur has today is to move out of the cities.
Read my last paragraph on my QRZ page.  All from personal experience.  For
just this reason (one of my other hobbies is radio astronomy), we live in
the hills of the Front Range of the Rockies well away from any dense
population.

The FCC is nothing more or less than a collection of high-paid lawyers who
wouldn't know RF if it bit them in the butt.   OET has been gutted. And
selling off a natural resource to 'make money'??????

Dave - WØLEV

On Wed, Dec 16, 2020 at 11:51 PM Tony <73guddx at gmail.com> wrote:

> On 12/16/2020 2:16 PM, David Eckhardt wrote:
> > I've emailed engineering at SolarEdge, the Isreali company, regarding
> RFI which is so synonymous with the solar power industry in general.  I
> have never received a reply from any of them. I strongly suspect they are
> acutely aware of RFI
>
> David:
>
> I can tell you first hand that Solar Edge is well aware of the RFI
> issues caused by their systems. I've been dealing with the company since
> 2016 and my case has yet to be resolved.
>
> They denied any RFI issues with their equipment at the time, but years
> later, after being presented with evidence which involved covering the
> solar panels with tarps to demonstrate how the noise disappeared with
> the system deactivated and how it reappeared when uncovered, they conceded.
>
> So here we are 4 years later from complete denial to the ARRL handling
> some 200 Solar Edge cases since then. We had three more cases pop up
> here on Long Island so this is clearly the greatest threat to amateur
> radio.
>
> Unless we take this more seriously, I think it's only a matter of time
> before the issue becomes so wide-spread that there's no way to put the
> toothpaste back in the tube.
>
> I've written the CTO of Solar Edge numerous times (see contact info
> below) but that has had little effect on changing the design of their
> systems.
>
> Tony -K2MO
>
>
> Ilan Yoscovich
>
> Chief Technology Officer
>
> *SolarEdge Technologies.*
>
> 1 Hamada st.,
>
> Herzelia, Israel
>
> Office:    +972.9.957.6620
>
> Mobile: +972.54.808.8110
>
> E-mail: ilan.y at solaredge.com <mailto:ilan.y at solaredge.com>
> _______________________________________________
> RFI mailing list
> RFI at contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi
>


-- 
*Dave - WØLEV*
*Just Let Darwin Work*