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Re: [RFI] My biggest fear is happening

To: "Dave (NK7Z)" <dave@nk7z.net>, rfi <rfi@contesting.com>
Subject: Re: [RFI] My biggest fear is happening
From: Bob Kozlarek WA2SQQ <wa2sqq@gmail.com>
Date: Wed, 5 Jun 2024 11:35:39 -0400
List-post: <mailto:rfi@contesting.com>
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@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@nk7z.net
> > <mailto:dave@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"*
> >      > _______________________________________________
> >      > RFI mailing list
> >      > RFI@contesting.com <mailto:RFI@contesting.com>
> >      > http://lists.contesting.com/mailman/listinfo/rfi
> >     <http://lists.contesting.com/mailman/listinfo/rfi>
> >
>
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