[Elecraft] Noise from Solar System

[Tom Azlin W7SUA]

I have 40 solar panels ( 10.4 KW) in 4 arrays feeding two Sunny Boy 5000 
watt inverters. All within 30 ft of my shack. Antennas are an HF 
vertical on a shack roof parapet as well as a beam and inverted V about 
200 ft away up on a ridge. I see zero noise from this solar system 
whether in grid tied or off grid mode. Solar installer guy was told must 
not produce RFI so he used this that other hams had said did not produce 
RFI. Friend of mine had about 10 panels each with a micro inverter. Was 
horrible RFI from that system.  My only regret was not having a full off 
grid system put in with lots of batteries.

73, Tom W7SUA



On 2/6/2025 9:29 AM, John Pierce via Elecraft wrote:
> I am planning to install Solar on my house.  Any experience you have had
> regarding the inverter as an amateur radio noise source would be of real
> interest.   Noise may vary by Mfg or by inverters at each panel on the roof
> vs one system inverter near my basement.  My antenna is a Hex beam an the
> solar system would be about 15' away.
> 
>   
> 
> John