[RFI] Another Solar Panel RFI System

[John Simander]

Is this "solar RFI: horse not a dead animal yet? They need to set up their own blog !!!!!!!!!!!!!!!!

John
________________________________
From: RFI <rfi-bounces+drumbeat70=outlook.com at contesting.com> on behalf of Gary Johnson via RFI <rfi at contesting.com>
Sent: Friday, December 16, 2022 3:17 PM
To: rfi at contesting.com <rfi at contesting.com>
Subject: Re: [RFI] Another Solar Panel RFI System


>
> But there is no certainty that the noise will be radiated at a level strong enough to hear, so it is not really correct to think that SE equipment is radiating from the AC mains.

I can verify with 100% certainty that my neighbor’s SE system does NOT generate conducted emissions through the primary AC wiring at any significant level. I actually used a current probe and a spectrum analyzer to check, as well as my portable radio and loop antenna. ALL of the RFI is radiated from the panel wiring.

The company was very responsive and completely rewired the array per their current specs, and changed the panel optimizers to a newer version which use spread spectrum comms. Unfortunately the final result was that instead of the 5 kHz wide peaks of crud every 200 kHz, my noise floor is raised about 6 dB everywhere. Having my dipole 30 ft away is optimally bad too!

Thankfully I have a FB remote station and am able to abandon my ever-noisier home station. Everyone should be so lucky…..

Gary NA6O
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