Fronius is a brand name and is the one I have. I believe that SMA and Sunnyboy
may be two names for the same brand - but look that up to be sure because I am
not positive.
-----Original Message-----
From: WW3S <ww3s@zoominternet.net>
Sent: Tuesday, May 28, 2019 2:27 AM
To: r55stan@gmail.com
Cc: Raymond Benny <rayn6vr@gmail.com>; ny9h@arrl.net; rfi@contesting.com
Subject: Re: [RFI] There goes the neighborhood.....
Are Fronius and SMA brand names or design styles?
Sent from my iPad
> On May 28, 2019, at 1:13 AM, <r55stan@gmail.com> <r55stan@gmail.com> wrote:
>
> 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@contesting.com> On Behalf Of Raymond Benny
> Sent: Monday, May 27, 2019 9:58 PM
> To: ny9h@arrl.net
> Cc: rfi@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@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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