[Towertalk] RF transparent support poles

[Carl - WC4H]

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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