[RFI] Question Regarding Variations In Solar Panel RFI?

[Hare, Ed W1RFI]

W1VLF is in a relatively quiet neighborhood. He, too, had loud spikes every 200 kHz, which did go away when they replaced the optimizers.  The inverter at his QTH is still noisy, so he is working with the engineers there to try to find better solutions.

-----Original Message-----
From: RFI <rfi-bounces+w1rfi=arrl.org at contesting.com> On Behalf Of Tony
Sent: Sunday, September 27, 2020 4:04 PM
To: WW3S <ww3s at zoominternet.net>
Cc: Rfi List <rfi at contesting.com>
Subject: Re: [RFI] Question Regarding Variations In Solar Panel RFI?

James:

Glad to hear that you're able to us HF again so congratulations. I'd be interested in seeing your before and after screenshots so please feel free to send them my way.

Thanks, Tony -K2MO




On 9/27/2020 6:25 AM, WW3S wrote:
> I tried sending before and after SDR screenshots, but the reflector rejected them....nearly 30db, the 200 kc optimizer spikes are gone completely. Remember I live in a subdivision, so it’s noisy anyway, and I have a few noise sources in my house. But two local ACS/ARES nets that take place on 75m at 9 am local time are now readable again. I never had a problem, even on the very weak signals until the panels were installed and running. Then, even moderate signals were hard to copy....after the recent work/retrofit, I now have my “ears” back....
>
> Sent from my iPad
>
>> On Sep 26, 2020, at 10:44 PM, Tony <73guddx at gmail.com> wrote:
>>
>> James / WW3S:
>>
>> Can you give us an idea on how effective the RFI suppression was on your neighbors Solar Edge system? I'm sure the group would be interested in a before and after RFI signal strength assessment as well as an overall noise floor evaluation.
>>
>> 73, Tony -K2MO
>>
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