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Re: [RFI] Metal Pole vs Wood Pole

To: Charles Plunk <af4o@twc.com>
Subject: Re: [RFI] Metal Pole vs Wood Pole
From: Michael Martin <mike@rfiservices.com>
Date: Thu, 05 Dec 2019 05:33:20 -0800
List-post: <mailto:rfi@contesting.com>
Hello Charles,
That's a good consideration. Most power line interference sources are created 
buy loose connections due to the wood shrinkage and corrosion between the 
hardware on the poles. Without the shrinkage a lot of that hardware wouldn't be 
an issue. so it's safe to say that a steel pole will not have as many problems 
as a wood pole. However, if the noise is on a steel structure the noise will 
radiate much stronger close to the structure then it would if it were a wood 
pole. The steel will act as a radiator for the noise and make the noise much 
stronger when you're close to the pole. At a distance away from the pole the 
noise would be relatively the same as if it were on a wood pole. 
The good thing is they're replacing the whole structure that your noise is on.
Let's hope during the process they don't start other noises for you by shaking 
up 10 spans of wire and poles in each direction.

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On Dec 4, 2019, 4:52 PM, at 4:52 PM, Charles Plunk <af4o@twc.com> wrote:
>My latest power line rfi I have tracked to 2 poles within 10' of each 
>other. One or both is scheduled to be replaced. White arrow on the 
>street, white strip on the pole, was orange tape, and sewer line nearby
>marked with green yard tag. Confirmed with utility that it is indeed 
>scheduled to be replaced but they would not give me a timetable so far.
>LOTS of hardware on these 2 poles. So waiting before I track further if
>needed. They are old wood poles probably from the 60s.
>Does it make any difference as to risk of future rfi whether the pole
>metal or wood (does hardware loosen more often on wood poles)? Just 
>curious as the new poles they install most or all seem to be metal.
>How long do you think I should be patient before I check back with
>30 days since first email will be 12/18.
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