[RFI] Solar Panel RFI - Noise begins

Pete Smith n4zr at contesting.com
Sat Aug 20 14:22:01 PDT 2011

It might be more useful if you showed us a panoramic display with a 
wider band-spread, to see if there is a characteristic repetition every 
x KHz, or something similar.

73, Pete N4ZR

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On 8/20/2011 4:50 PM, Tony wrote:
> All,
> As I mentioned yesterday, my neighbor installed solar panels on his roof
> (thanks for all the replies). The installation was completed today and
> it appears to be causing RFI.
> I doubt this is a coincidence because beam heading to my neighbor, some
> 400 feet away, was very quite prior to the solar panel install. I made a
> short video (please see below) hoping that someone can confirm if this
> is typical of solar panel noise.
> RFI Video -- http://www.youtube.com/watch?v=S1s0wSTfDnM
> The noise appears on 20 through 10 meters, but seems to be absent on 15
> meters. I'm assuming that the system goes into "sleep mode" some time
> after sundown so I'll check again this evening.
> Thanks,
> Tony
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