[RFI] There goes the neighborhood.....

[Tony]

Jamie:

If it's a SolarEdge system, you can expect to see a combination of 
close-spaced noise every 15 to 18 kHz with spikes every 200 kHz. The 
number of spikes increase as you get closer to the source which is a 
characteristic seen in the last two screenshots on Dave's website.

See: https://www.nk7z.net/solar-2/

The noise "signature" is essentially the same from one SolarEdge 
installation to the next: you can see this when you compare the first 
screenshot taken at my location in New York and the 3rd screenshot taken 
at a location in California. Both illustrate SolarEdge RFI on the 20 
meter band.

Another thing to look for is the presence of noise during the day and 
the lack of noise at night when the panels are no longer illuminated by 
the Sun. The first two screenshots on Dave's page illustrate the day / 
night cycle seen at my location.

For what it's worth, I have an ongoing case with SolarEdge since 2016 
and they have yet to fix the problem. They've made a few attempts to 
suppress the noise with little effect. The last attempt was early this 
year.

The problem is that SolarEdge fails to addressed the entire system so 
components like the inverter are left with no suppression.

There's the lack of priority on the companies part as well. It will be 3 
years this August since the system was turned on.

Best of luck Jamie -- hope things work out.

Tony -K2MO



On 5/21/2019 12:03 PM, Jamie WW3S wrote:
> Never thought I'd see it here in perpetually cloudy NW PA, but the 
> neighbor across the street is getting some sort of roof mounted solar 
> array installed.....I tried striking up a friendly conversation with 
> the installers about what kind of system it was, but when they heard 
> "ham radio" and "interference", that was the end of the 
> conversation....the one guy said they never had a problem with radio 
> interference before, but when I asked if they ever installed one next 
> to an amateur radio operator, he couldn't say.....soooooo......what 
> should I expect? Hopefully, there will be no issues, but if there is 
> ?!?!?!?!?
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