[Towertalk] RF transparent support poles

[Jerry Kincade]

I have one of these, and although it works great for hoisting one end of
something light or the center of a portable dipole/inverted V, I'd think
they might be a bit willowy for four of them to support a loop, especially
if the loop was to run 1.5 KW, which might call for some fairly heavy
copper.
73, Jerry W5KP

----- Original Message -----
From: "Carl - WC4H" <wc4h@itis.net>
To: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; <towertalk@contesting.com>
Sent: Thursday, April 11, 2002 7:48 AM
Subject: Re: [Towertalk] RF transparent support poles


> MFJ & others sell a 33 ft locking telescoping mast made of fiberglass.
They
> collapse to 3.8 ft and weigh 3.3 lbs.  It's the MFJ-1910.  I have one here
> in my closet which I will be using for a wire antenna.  I'm planning to
put
> it on a tree so that I can get a total height of about 50 ft out of it.
>
> They are easy to raise and lower.
>
> 73
> Carl
> wc4h
>
> ----- Original Message -----
> From: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>
> To: <towertalk@contesting.com>
> Sent: Wednesday, April 10, 2002 1:40 PM
> Subject: [Towertalk] RF transparent support poles
>
>
> > Hi everyone:
> >
> > I'm toying with the idea of experimenting with a 4 corner horizontal
loop
> (a
> > project after the next project). I'm on a city lot, 50' x 100' but I
think
> I
> > could get a 200 to 225 foot loop up at 20 to 30 feet (my lot is not
level)
> > maybe higher.  The feed will come down from the feed point along side my
> > house with ladder line to my basement shack window which I'd replace
with
> > plexiglass.  I'll drill two holes in the center of the window & run the
> feed
> > through to a balanced transmatch which will sit right there at the
window.
> > Only one problem so far:  I need 30' high rigid non-metalic supports,
> > preferably unobtrusive looking.  I was at home depot a few days ago and
> they
> > had these 4" diamater pvc sewer pipe sections but I figure I'd land on
the
> > city eyesore list if I put up four 30 foot high white columns of plastic
> all
> > around my house.  There are a lot of people around here who are uptight
> > about this kind of thing.  I am interested in avoiding metal because I
> don't
> > want to detune or distort the patterns of my verticals.  Also, to get
the
> > longest wire possible I'd like to put the poles close to my property
lines
> > and that means they would have to be unguyed since any guy anchors would
> > have to be outside my property.  Ideally something black or green that I
> > could stick in the ground several feet to which I could attach an
> insulator
> > or pulley at the top and hold up thin stranded cu wire (but heavy enough
> for
> > 1.5 kw--I don't believe in antennas with the word junior in their names)
> and
> > a little bending at the top.  Willing to paint.  Fiberglass?  Any
> > suggestions? Tnx & 73,
> >
> > Rob Atkinson
> > K5UJ
> > k5uj@hotmail.com
> >
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