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

[r55stan at gmail.com]

The safest option to avoid RFI is to avoid all switching circuitry on the roof.  This incudes optimizers (which are DC to DC converters) and micro inverters (DC to 240 VAC converters).  I have a Fronius inverter, and I have also heard that SMA inverters are quiet.  Watch out for the exaggerated claims about the effects of any shadows shutting down the entire string.  This can't happen due to the bypass diodes on the panels.  And, you can easily make up any small efficiency disadvantage of a single ground inverter system with one or two more panels.  My solar power system has zero RFI with no ferrites or twisted wires.

Randy KQ6RS

-----Original Message-----
From: RFI <rfi-bounces at contesting.com> On Behalf Of Raymond Benny
Sent: Monday, May 27, 2019 9:58 PM
To: ny9h at arrl.net
Cc: rfi at contesting.com
Subject: Re: [RFI] There goes the neighborhood.....

I agree with Bill, I have a 6kw SMA inverter and no noise.

Not sure what "dual inverter" means. My SMA has 3 legs/inputs enough for about 30 panels.

Ray,
N6VR
Near Prescott, AZ



On Mon, May 27, 2019, 6:20 PM Bill Steffey <ny9h at arrl.net> wrote:

> since my SMA standard inverters have NO noise I would test an SMA 
> optimizer installation//////
>
> I bet they are also quiet...
>
>
> bill
>
>
> On 5/27/2019 6:33 PM, Jim Brown wrote:
> > On 5/27/2019 3:13 PM, Gary Johnson wrote:
> >> Most incredible thing: He’s willing to have them remove the entire 
> >> system if they can’t resolve the RFI! But, he wants to know if 
> >> there exists an RFI-quiet system*with panel optimizers*.
> >
> > Wow -- buy that guy a case of his favorite single malt!
> >
> > 73, Jim K9YC
> >
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