[RFI] My biggest fear is happening

[David Hachadorian]

If the system is noisy, contact W1EMI at ARRL HQ.  He can contact TJ 
Simpson at Solar Edge and get a retrofit kit scheduled.  In my case, it 
took a couple of months to get it fixed.

Dave Hachadorian. K6LL
Yuma, AZ

On 6/5/2024 8:35 AM, Bob Kozlarek WA2SQQ wrote:
> I just spoke to the installer had a few questions specifically are all of
> the DC cables straight or are they twisting them and also are they using
> any RF chokes? His response was that we don’t twist the cables and we don’t
> install any chokes. I did verify that they are using solar edge inverters?
>
> I’m wondering if anyone has any contacts for solar edge that I might be
> able to contact today and explain the situation.. he did agree that he
> would ring my doorbell when they turn the system on later this afternoon so
> we can check.
>
>
>
>
> *Best 73 de WA2SQQElmwood Park, NJ"The only dumb questions are those we
> don't ask"*
>
>
> On Wed, Jun 5, 2024 at 10:59 AM Dave (NK7Z)<dave at nk7z.net>  wrote:
>
>> Morning,
>>
>> Good luck in this, documentation is your friend here...
>>
>> If possible use the SDR, not just a screen capture of a small chunk of
>> spectrum.  You will need to prove the RFI is causing you issues, to get
>> the FCC involved, not just that RFI is being generated.  The RFI MUST
>> cause issues to get action from the FCC.
>>
>> I provided 10 MHz wide scans to the ARRL labs, (I work with them on any
>> RFI issues I have), and they sent a note to a pot grower, and his
>> landlord, and the issue ended...  Wide-band scans are very useful for
>> this sort of thing...  Look in the Handbook, there is a large section on
>> RFI now...
>>
>> Please do keep me in the loop, as anything I learn, I can pass on to
>> others...
>>
>> 73, and thanks,
>> Dave (NK7Z)
>> https://www.nk7z.net
>> ARRL Volunteer Examiner
>> ARRL Technical Specialist, RFI
>> ARRL Asst. Director, NW Division, Technical Resources
>>
>> On 6/5/24 07:50, Bob Kozlarek WA2SQQ wrote:
>>> Just got all my screen captures done. Thanks very much for all the
>>> advice. I’ll keep you posted.
>>>
>>> /Best 73 de WA2SQQ
>>> Elmwood Park, NJ
>>>
>>> "The only dumb questions are those we don't ask"/
>>>
>>>
>>> On Wed, Jun 5, 2024 at 10:46 AM Dave (NK7Z) <dave at nk7z.net
>>> <mailto:dave at nk7z.net>> wrote:
>>>
>>>      Bob,
>>>
>>>      Take readings on every band, today of your RFI, before the system is
>>>      installed.  See:
>>>
>>>      https://www.nk7z.net/sdr-rfi-survey-p1/
>>>      <https://www.nk7z.net/sdr-rfi-survey-p1/>
>>>
>>>      You will find the pre-install readings very useful, (if the system
>>>      starts generating RFI), in mitigating RFI issues later.
>>>
>>>      Document all discussions you have with both, the neighbor, and the
>>>      installer.  Also, you might remind the neighbor that the owner of the
>>>      system is responsible, not the maker of the system.
>>>
>>>      Do all of this in a non confrontational way of course, but get it in
>>>      the
>>>      neighbors head that you will not put up with RFI.  Also, make sure
>> that
>>>      the neighbor knows the contact point for any mitigation will be the
>>>      them
>>>      first.  Then note all of that in your RFI mitigation log...
>>>
>>>      I have a neighbor, (we get along), who commented about getting an
>>>      Electric car.  I also commented to them that chargers can generate
>>>      copious amounts of RFI, and they should speak to the maker about this
>>>      before they install one that generates RFI.  That way we can both
>> avoid
>>>      mitigation issues.  I also put that communications note in my running
>>>      RFI log.  We still get along, and they now understand that RFI is a
>>>      issue...
>>>
>>>      73, and thanks,
>>>      Dave (NK7Z)
>>>      https://www.nk7z.net  <https://www.nk7z.net>
>>>      ARRL Volunteer Examiner
>>>      ARRL Technical Specialist, RFI
>>>      ARRL Asst. Director, NW Division, Technical Resources
>>>
>>>      On 6/5/24 06:25, Bob Kozlarek WA2SQQ wrote:
>>>       > Woke up this morning to discover a “Sunrun” solar truck in my
>>>      neighbors
>>>       > driveway. I’ve got a very good relation with my neighbor. I
>> shared my
>>>       > concerns and she admitted she wasn’t aware of the potential
>>>      problem. The
>>>       > installers said, it should not cause any problems. I’m going to
>>>      speak with
>>>       > the installers later today. What are the known components
>>>      (brands) that are
>>>       > known offenders?
>>>       >
>>>       > I’m going to try and remain optimistic, but I have a bad feeling.
>>>       >
>>>       >
>>>       >
>>>       >
>>>       > *Best 73 de WA2SQQElmwood Park, NJ"The only dumb questions are
>>>      those we
>>>       > don't ask"*
>>>       > _______________________________________________
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>>>
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