[SADXA] RFI PROBLEM

Wes wes_n7ws at triconet.org
Wed Jan 22 09:28:17 EST 2020


That's an interesting, and surprising to me, data point, write it down.

Of general interest here is a paper somewhat on the subject: 
https://www.solar-electric.com/learning-center/reducing-electromagnetic-interference-pv-systems.html/

Wes  N7WS



On 1/21/2020 7:33 PM, A.J. PAWLOWSKI wrote:
> I just checked 0230Z and there is no change.
> a.j.  KB7KZ
>
> ________________________________
> From: sadxa-bounces at mailman.qth.net <sadxa-bounces at mailman.qth.net> on behalf of Gail N7BXX <n7bxx at q.com>
> Sent: Tuesday, January 21, 2020 5:44 PM
> To: SADXA mail list <sadxa at mailman.qth.net>
> Subject: Re: [SADXA] RFI PROBLEM
>
> Do we know if the solar panels produce more or less interference when the sun is shining or at night?  Is there any difference?  Gail
>
> ----- Original Message -----
> From: "Wes Stewart" <wes_n7ws at triconet.org>
> To: "SADXA mail list" <sadxa at mailman.qth.net>
> Sent: Tuesday, January 21, 2020 4:08:44 PM
> Subject: Re: [SADXA] RFI PROBLEM
>
> You need to start documenting everything.  This is a widely reported issue and
> only going to get worse as these things proliferate.  Sign up for the mailing
> list http://lists.contesting.com/mailman/listinfo/rfi and follow along.  Check
> their archives too.  Check out http://www.arrl.org/radio-frequency-interference-rfi
>
> TEP isn't going to fix anything. Ultimately, it's the operator of the
> interfering equipment who is responsible.  These are going to be your
> neighbors.  Remain calm. Some guys are wanting to sue Solar Edge, seemingly the
> worst, but I hear they are actually trying to remedy the issue.  The other
> biggie is  Solar City aka. Elon Musk. I won't comment on his business model.
>
> Wes  N7WS
>
> On 1/21/2020 1:47 PM, A.J. PAWLOWSKI wrote:
>> TEP JUST LEFT MY HOUSE AFTER INVESTIGATING RFI IN MY AREA. THEY DETERMINED THAT THE NOISE WAS CENTERED AROUND 4.5 Mhz AND WAS CONSISTANT IN A 1 TO 2 MILE RADIUS FROM MY HOME NEAR INA AND THORNYDALE.
>>
>> An interesting factoid was that they found that the noise was strongest in the areas around homes and businesses that had solar panel arrays. My speculation is that the solar panel controllers are causing the noise which is then fed into the TEP system by those who are selling power back to TEP.
>>
>> ANY THOUGHTS ANYONE????
>>
>> A.J.   KB7KZ
>>



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