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Re: [RFI] LED Street lights - Locations of Noisy Systems?

To: "Hare, Ed, W1RFI" <w1rfi@arrl.org>
Subject: Re: [RFI] LED Street lights - Locations of Noisy Systems?
From: David Eckhardt <davearea51a@gmail.com>
Date: Thu, 24 Aug 2023 22:32:43 +0000
List-post: <mailto:rfi@contesting.com>
QUOTE from ED:  and NONE of the administrivia!

When working, I always said I'd be happy in retirement if I had a good
spectrum analyzer.  Well, now after being retired for a bit over a decade
and having lost everything in the 2012 High Park fire....., I have several
SAs....maybe as many as seven.

And, of course, that isn't keeping me happy.  Now that requirement has
expanded to several VNAs as well.  And, of course, a 1 GHz o'scope from my
retired friend, Ken, from the HP/Agilent/Keysite bunch in the Springs
(Colorado) - the o'scope division.

We MUST have our hands and fingers on good test equipment to be happy, not
just our radios and antennas!!  And, of course, I'm a home brewer as well.

Again, the EMC/RFI Lab at ARRL is the best part of the organization.

Dave - WØLEV

On Thu, Aug 24, 2023 at 10:19 PM Hare, Ed, W1RFI via RFI <rfi@contesting.com>
wrote:

> And thanks for what you do, too, Dave.   At some point, I think we need to
> try to bring ARRL's RFI web pages and yours into closer agreement.  Our
> cooperative program with FCC may not be perfect, especially with some of
> our complainants who tend to thrash about and keep getting everyone working
> at cross purposes, or get so inflamed that they burn the house down, but it
> makes a difference and we use it to build more and more collaboration, with
> FCC and the industry.
>
> And the reason that ARRL has the resources to devote full time engineering
> staff to do this is that 160,000 of you all chipped in! Remember that
> always. (With thanks to all who offer their support for this work.)  Heck,
> I am still doing this work for free now, just a bit less of it, and NONE of
> the administrivia! LOL!
>
> Ed, W1RFI
> ________________________________
> From: RFI <rfi-bounces+w1rfi=arrl.org@contesting.com> on behalf of Dave
> (NK7Z) <dave@nk7z.net>
> Sent: Thursday, August 24, 2023 11:17 AM
> To: rfi@contesting.com <rfi@contesting.com>
> Subject: Re: [RFI] LED Street lights - Locations of Noisy Systems?
>
> Hi Ed,
>
> I worked with the city engineer here a decade ago, and found almost
> nothing from the LED lights they were testing.  They were testing
> various models of lights, and gave me the locations and pole numbers of
> each type.  I sat under each one at light startup...
>
> Sitting under any of them, with an SDR, at start time, yielded almost no
> RFI, 3-30 MHz.
>
> Thankfully the city uses metal poles, and does grounding on the pole,
> and the electrical system.  I am very lucky-- the city, the electric
> company, and the cable company, all run tight ships here.
>
> On another note, the ARRL, sent a letter to a grower I located via the
> SDR setup, and the RFI problem ended within a month.  That was about 6
> months ago, and the RFI has not returned.  All I can say is THANK YOU!
> I have 80-20 meters back!  That saved me the FCC work involved, and was
> a wonderful solution.
>
> I have now probably now doomed myself, and the RFI will begin again this
> evening!
>
> In any case, THANK YOU and the ARRL for all you do for RFI!
>
> 73, and thanks,
> Dave (NK7Z)
> https://www.nk7z.net
> ARRL Volunteer Examiner
> ARRL Technical Specialist, RFI
> ARRL Asst. Director, NW Division, Technical Resources
>
> On 8/24/23 03:42, Hare, Ed, W1RFI via RFI wrote:
> > I am not quite geared up yet to make mobile measurements, but do have
> the equipment and can go out into the field and make some calibrated
> measurements.   I haven't followed every post of every topic on this list
> (gasp!), so does anyone know of a noisy LED street-light system within a
> couple hundred miles of central Connecticut?  I will go there and report
> back what I find.
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-- 

*Dave - WØLEV*
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