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

To: RFI List <rfi@contesting.com>, "Chris L. Parker" <parker601@earthlink.net>
Subject: Re: [RFI] Mystery Noise (Aren't they all)
From: Wes Stewart via RFI <rfi@contesting.com>
Reply-to: Wes Stewart <n7ws@yahoo.com>
Date: Fri, 8 Mar 2024 13:16:15 +0000 (UTC)
List-post: <mailto:rfi@contesting.com>
 Chris,
Yep, you describe it perfectly.  I talked to Trico's rfi guy yesterday and he 
promised to be out today and look in the frequency range I suggested.  
But...there's always a but... it rained yesterday and this morning the noise is 
everywhere frequency wise.  May make it easier for him, may not.  We shall see.
Wes

    On Thursday, March 7, 2024 at 11:09:15 PM MST, 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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