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Re: [RFI] Mystery Noise (Aren't they all)

To: "Chris L. Parker" <parker601@earthlink.net>
Subject: Re: [RFI] Mystery Noise (Aren't they all)
From: David Eckhardt <davearea51a@gmail.com>
Date: Fri, 8 Mar 2024 16:38:49 +0000
List-post: <mailto:rfi@contesting.com>
The last RFI job I did for another ham turned out to be a failing lightning
arrestor.  So, you have the pump house or one of several lightning
arrestors.

Dave - WØLEV

On Fri, Mar 8, 2024 at 6:07 AM Chris L. Parker <parker601@earthlink.net>
wrote:

> Wes,
>
> I will go out on a limb here.
> If you mean the pumping station near 5878 N Desert View Dr, I see two
> poles there.
> The northern pole (with the crossarm) appears to have 3 phase 7.2kV, which
> feed 3 lightning arrestors, 3 cutouts (fuses) and then 3 10kVA transformers.
> The secondaries (120-0-120 VAC, or maybe a delta to wye 480-480-480) from
> the transformers "dip" down in the gray plastic pipe on the side of the
> wooden pole.
> The southern pole appears to have a 7.2kV single phase to a dead end 6
> shed poly insulator. It feeds a single lightning arrestor and a single
> cutout (fuse) then a HV dip line in the gray plastic pipe on the side of
> the wooden pole. I see a ground-mounted transformer (TPT 01) near the base
> of that pole.
> You might try using the ATT on the Sony (ATT works on the ferrite loop)
> and "Sniffing" around the secondaries and then the HV dip line on these two
> suspect poles.
>
> Hope this helps.
> Chris
> AF6PX
>
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-- 

*Dave - WØLEV*
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