[TowerTalk] Wires in trees - QST month

Larry Banks larryb.w1dyj at verizon.net
Wed Jan 24 15:50:04 EST 2018

This month.  Mine arrived today.

73 -- Larry -- W1DYJ

-----Original Message----- 
From: W1JCW John
Sent: Wednesday, January 24, 2018 15:36
To: Steve Boone ; towertalk at contesting.com
Subject: [TowerTalk] Wires in trees - QST month

What month is the article in QST?

I've had many dipoles through tree usually for support and they worked well 
and I worked lots of Dx.
Never had any arcing or fires.

Looked I had an RF issue last installation 230 OCF over trees at 40' and 
when increased power swr was erratic.

Had 450 ladder line, down to 4:1 balun even tried coax at the feed point 
with a wound choke same issue.
A good portion of the antenna went over the top of trees.


On Tue, Jan 23, 2018 at 8:05 AM, Dick's <rcblumen at centurylink.net> wrote:

> There is an article in the last issue of QST that looks at the effect
> trees have on antennas in/near trees.
> Dick, K0CAT
> On Jan 23, 2018, at 1:24 AM, Steve Boone <w7wm.boone at gmail.com> wrote:
> This is a topic that I have never seen addressed and Google has not
> revealed any similar situations:
> I am installing a quarter wave, 160m inverted-L between a 40'
> Ponderosa Pine and my tower. The first 30' of the antenna will run
> parallel to the tree trunk and through the branches. I am using copper
> coated wire for the element. I have four elevated radials at the 10' 
> level.
> My concern is whether I need to worry about contact between the wire
> and the tree. With the very low humidity that we get during Colorado
> summers, I am wondering if there is a fire danger here.
> I will be running a 1.5 kW.
> Thanks,
> -Steve, W7WM

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