[RFI] Solar Panel RFI in Kings Park - Update October 4th 2018

Tom Thompson w0ivj at tomthompson.com
Sat Oct 6 16:04:21 EDT 2018


It won't.  If you put a transmitter inside a screen room with an 
external antenna, it will radiate.

Tom   W0IVJ

On 10/6/2018 1:59 PM, Tony wrote:
> All:
>
> The RF Engineers from Solar Edger came out to my home this week to 
> assess the noise emanating from my neighbors solar panel system.
>
> They plugged into my antennas to view the spectral noise on my 
> receiver which they then compared to the spectral noise that appeared 
> on their portable setup near the solar panels. They determined the 
> noise to be one and the same.
>
> The next course of action is to improve the ground system and install 
> RF absorbing foam to each optimizer. I also convinced them to replace 
> the snap-on ferrites located at each optimizer, with larger ones so 
> they can loop several turns of cable around each core.
>
> They originally said they would just go with the RF foam which is 
> puzzling: I don't understand how encasing a noisy device with this 
> stuff could suppress RFI when the device is attached to long runs of 
> cable that act like antennas. Can anyone explain how that would work?
>
> Tony -K2MO
>
>
>
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