[RFI] Question for the group...

[K9MA]

If your neighbor's system is from Generac, that's very bad news. Several 
of my nearby neighbors have Enphase and AP Systems microinverter 
systems, from which I've detected no RFI. The neighbor immediately next 
door, 60 feet from my tower, as well as my own Enphase system, have 
single-turn ferrite chokes on the wiring, but I don't know if that was 
necessary.

As far as Part 15, there is that note: "...may not cause harmful 
interference." Does that apply to devices which have no AC line 
connections, and hence no conducted emissions limit?

73,

Scott K9MA

On 12/31/2025 8:13 PM, Dave (NK7Z) wrote:
> I have a neighbor getting ready to install Solar, he lives about 600 
> to 1000 feet from my home.  He is very cooperative, and had contacted 
> the vendor.  I will be running tests prior to turn on.
>
> I want to insure I have my ducks in a row for this, in the event it 
> turns sour.  I will run a spectrogram from 3-30 MHz, via my SDR to get 
> a baseline before the Solar system goes live.
>
> Just to be sure, solar does fall under part 15?  Is that correct?
>
> 73, and thanks,
> Dave (NK7Z)
> https://www.nk7z.net
> ARRL Volunteer Examiner
> ARRL Technical Specialist, RFI
> ARRL Asst. Director, NW Division, Technical Resources
>
> Random Quote of the day:
> What did one charged atom say to the other? I got my ion you
>
>
>
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-- 
Scott  K9MA

k9ma at sdellington.us