Next time I drive through DIA in Denver, I will have Pat (my wife) drive.
I will be armed with an antenna, a laptop, and an AirSpy, or better yet, a
portable spectrum anaylzer. There is a HUGE solar installation at DIA just
as one enters. I'll bet it is clean......
Dave - WØLEV
On Mon, Dec 16, 2019 at 10:27 PM David Eckhardt <davearea51a@gmail.com>
wrote:
> Being terribly facetious: Let's all fire up our spark transmitters
> connected to the best HF antenna we have. Would FCC then, act?
> Absolutely! How is solar much different? Don't need an old Ford spark
> coil. The high-energy SCR'ed ignition systems can do wonders when coupled
> toa real antenna. Again, would FCC act? Absolutely. How is solar much
> different???
>
> If the designers (Solar Edge???) would limit the rise time of the
> rectangular waves driving the high power switching in the inverters, the
> problem would "mostly" go away. A small loss of about 2% might result, but
> RFI would be greatly reduced. Been ther.....Done that with other
> systems. The technique works - Small series inductance with the drive to
> the switching device gate.
>
> I well remember reading the pages of EE-Times when switchers came along
> and begun to displace linear regulators. They were the best thing to come
> along since sliced bread. About a year, the readings changed. OMG!!!!!
> These things produce all kinds of RFI. That went on for a couple of years
> with may articles in most of thewidely read EE publications addressing how
> to"tame" the RF emissions. Well, things have gotten much faster and power
> FET'S have come into design bucket of tools. The problem is back. Now
> what do we do. Pick one hour of one day of the coming year and all us us
> put our spark transmitters 'on the air'??
>
> Some day, and its a long story, I'll write up the trial instigated by
> Homeland Security in our little farming and bedroom town of Berthoud,
> Colorado, to evaluate realtime the interference potential of BPL. Not
> 10-minutes of going active, and the FAA was on our case and diverted ALL
> commercial air traffic away from Berthoud to a 50-mile radius. And, we're
> only some 60-miles from DIA in Denver.
>
> Dave - WØLEV
>
> On Mon, Dec 16, 2019 at 9:20 PM Tony <dxdx@optonline.net> wrote:
>
>> All:
>>
>> I received the following updates from Tesla's Ms. Holmen regarding the
>> RFI being caused by their solar panel installation. The good news is
>> that she will be meeting with SolarEdge on Wednesday. The bad is that
>> she continues to deflect and place the blame elsewhere.
>>
>> See below.
>>
>> Tony -K2MO
>>
>> __________________________________________________
>>
>> Ms. Holmen:
>>
>> With the information supplied to me by you and your neighbor
>> it has been determined this is purely a civil dispute between
>> neighbors. Tesla and SolarEdge have done their due diligence
>> to assist in your interference concern.
>>
>>
>> I recommend that you speak with an FCC agent regarding this matter. It
>> has nothing to do with a dispute - it's a matter of federal regulations.
>> https://www.fcc.gov/about/contact
>> <
>> https://urldefense.com/v3/__https:/www.fcc.gov/about/contact__;!!Oq3sn3U_Ofw!OgagJz_-_eM1HnZ0bMZR153PFADFP7_TJqnYRA60c6EY2dchdtvKrYoiDamM$
>> >
>>
>> I've attached a letter that was sent to SolarEdge headquarters in
>> February of 2017. The document explains the issue of radio frequency
>> interference caused by solar panel installations and the FCC's role in
>> such matters.
>>
>> Response:
>>
>> Hi Mr. Bombardiere,
>>
>> Thank you for your email. I did speak with the FCC on Thursday of last
>> week. They did advise that a homeowner has the right to install solar on
>> their home regardless of potential interference. I advised the agent on
>> the line about the amateur license being help by the neighbor, and they
>> again informed me that the homeowner wishing to have solar is still
>> allowed to install it on their home. Jonathan was the name of the agent
>> I spoke to.
>>
>> I do have a meeting with SolarEdge scheduled on Wednesday, December 18,
>> 2019 to discuss the troubleshooting options and what was installed on
>> your neighbors home.
>>
>> Both SolarEdge and Tesla did their due diligence on this matter
>> attempting to fix this issue. I can inform you of the information I
>> receive in this meeting if you would like me to.
>>
>> The only options I have at this time are removing the solar system and
>> cancelling your neighbors agreement or reducing his system size. Both of
>> these options will come at a cost.
>>
>> ________________________________________________________________________
>>
>>
>> Ms. Holmen:
>>
>> Thank you for taking the time to investigate further. With all due
>> respect to the FCC agent, he should have informed you about the FCC
>> regulations that pertain to electronic devices that cause RF interference.
>>
>> If this same Tesla installation was causing interference with Fire or
>> Police communications, the FCC would shut the system down immediately
>> until the problem was fixed.
>>
>> While the customer has every right to have solar panels, I'm sure you
>> understand that licensed FCC operators like myself have rights as well.
>>
>> I want to thank you again for all you've done and continue to do to
>> resolve this issue. I'm confident that SolarEdge can come up with a
>> solution.
>>
>> > I can inform you of the information I receive in this meeting if you
>> would like me to.
>>
>> Please do.
>>
>> Response:
>>
>> Hi Mr. Bombardiere,
>>
>> Thank you for your email. I did inform the FCC hotline specialist about
>> interference and about a neighbor with an amateur license.
>>
>> When it comes to commercial areas, the city has regulations that Tesla
>> would comply with. Your neighbor and you live in a residential area,
>> therefore residential solar is allowed to be installed.
>>
>> Fire stations, police stations and airports all have specific
>> regulations and are not in the heart of residential areas. Should these
>> be within a specific area, a city or township would block permitting and
>> inspections for these situations. I hope that I am explaining this
>> information clearly.
>>
>> Please let me know if you have further questions. I will keep you
>> informed regarding the conversation I have with SolarEdge.
>>
>> Best Regards,
>>
>> *Ashley Holmen | Specialist, Executive Resolutions*
>>
>> 6611 Las Vegas Blvd S., Suite 200 , Las Vegas, NV 89119
>>
>> p. (650) 546-8110 | aholmen@tesla.com <mailto:aholmen@tesla.com>
>>
>>
>>
>>
>> _______________________________________________
>> RFI mailing list
>> RFI@contesting.com
>> http://lists.contesting.com/mailman/listinfo/rfi
>>
>
>
> --
>
> *Dave - WØLEV*
> *Just Let Darwin Work*
> *Just Think*
>
--
*Dave - WØLEV*
*Just Let Darwin Work*
*Just Think*
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