[RFI] Generac Solar System RFI

[K9MA]

If the source of the solar system RFI really is the optimizers, there 
will be no such things in a generator system. The optimizers are 
switch-mode boost regulators, apparently running at about 39 KHz. Their 
purpose is to regulate the voltage from each string of solar panels to 
compensate for partial shading.

I'd expect the only RFI concern with the generator would be if it uses 
an inverter. The 22 kW Generac one apparently does not. Of course, 
there's always the control electronics.

73,
Scott K9MA

On 8/15/2024 4:40 PM, David Eckhardt wrote:
> Thanks, Jack.  I will breath a bit easier with your input.  We're also in a
> rural location - by choice for RFI.
>
> Dave - WØLEV
>
> On Thu, Aug 15, 2024 at 9:19 PM KD4IZ<kd4iz at frawg.org> wrote:
>
>> David,
>>
>> I think you may rest easy on that account. We have a similar set up -
>> propane powered 22KW Generac generator and circuit sequencers (for hi
>> amperage devices). I experience no additional noise here when the unit is
>> operating and have successfully run the ECARS net during a power outage
>> more than once. We live in a quiet rural Maryland area.
>>
>> Jack - KD4IZ
>> Sent from my iPhone
>>
>>> On Aug 15, 2024, at 16:36, David Eckhardt<davearea51a at gmail.com> wrote:
>>>
>>> Yesterday, my neighbor had a Generac loss-of-grid-power generator
>> installed
>>> (with a 500-gallon propane tank).  Hopefully, similar technology is not
>>> used in their back-up generators.  Time will tell.
>>>
>>> Dave - WØLEV

-- 
Scott  K9MA

k9ma at sdellington.us