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Re: [TowerTalk] Non-Conductive Mast Section

To: Adam Shirley WJ4X <wj4x@amsat.org>
Subject: Re: [TowerTalk] Non-Conductive Mast Section
From: Jim Rhodes <jimk0xu@gmail.com>
Date: Thu, 8 Dec 2011 17:27:15 -0600
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
I would mount it to the horizontal mast section, but with 2 plates with
slots to allow aiming. The plate on the boom mounted as you would for
horizontal orientation, plate on mast flat on top of horizontal mast.

On Thu, Dec 8, 2011 at 2:37 PM, Adam Shirley WJ4X <wj4x@amsat.org> wrote:

> I side mounted a 13B2 vertically polarized. Just don't pass the mast
> through the beam. It'll work just fine.
>
> 73!
>  -Adam
>  WJ4X
>
> On 12/8/2011 1:44 PM, Jim Brown wrote:
> > I want to side-mount a vertically polarized long boom 2M Yagi onto Rohn
> > 25 or Rohn  35 (slightly larger gauge, made for Motorola, that's not the
> > official designation). I may or may not put it on a rotator, and at
> > first will lock it down in the direction of the local DX club repeater.
> > I have another one of the same antenna that I'll mount horizontally.
> >
> > What I'm looking for are:
> >
> > 1) An insulated mast section, as recommended by the mfr (KLM) for
> > vertical mounting
> >
> > 2) Some sort of suitable stand-off hardware or improvised method of
> doing it
> >
> > 3) Other hardware to make it work
> >
> > One idea I've toyed with is even more primative -- bolt a horizontally
> > oriented 5 ft section of 2-in mast to the tower cross-braces, and bolt
> > the antenna to it. This way I don't need an insulated section,but I've
> > got to be quite careful about the orientation of the horizontal piece,
> > since it (alone) determines the antenna azimuth.  I've got the 5 ft
> > section of 2-in, but no suitable mounting hardware.
> >
> > Thoughts?
> >
> > 73, Jim K9YC
> > _______________________________________________
> >
> >
> >
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> >
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-- 
Jim K0XU
jim@rhodesend.net
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