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Re: M2 Fiberglass Boom preparation



At the risk of replaying a recent discussion on the list.  I now use a steel
crossboom.  I was convinced of the feasibility by the careful experimental
work of Kent Britain, wa5vjb,  (antenna guru).  You can read the results of
his work in the proceedings of the 11th annual AMSAT-NA meeting.  His paper
is titled "Using Metal Booms to Support AMSAT Antennas".  The paper has been
reproduced on the web (I can't find the link at the moment).

This is one of those things that everyone says can't work, because, well
they know it can't.  The people who have actually done the experiments say,
gee I guess we all assumed wrong.

Yes, you do have to take a little care in how you do it!

73,
Joe
ka0yos@amsat.org

----- Original Message -----
From: "Joel Kandel" <jkandel@ix.netcom.com>
To: "Gary "Joe" Mayfield" <gary_mayfield@hotmail.com>
Sent: Sunday, November 11, 2001 7:36 AM
Subject: Re: [amsat-bb] M2 Fiberglass Boom preparation


> Gary,
>
> Did you find something better than fiberglass for a boom? I'm looking
around for
> boom material now.
> Joel, KI4T
>
> Gary "Joe" Mayfield wrote:
>
> > Back when I used a fiberglass boom, I coverered it with a sacrificial
layer
> > of electrical tape (choose a color that  blends in to the surroundings).
I
> > then coated the tape with PVC cement.   Three years later when I took it
> > down the boom looked great!
> >
> > 73,
> > Joe
> > ka0yos@amsat.org
> >
> > ----- Original Message -----
> > From: "Norm and Cathy Beasley" <n-c.beasley@sil.org.pg>
> > To: <amsat-bb@AMSAT.Org>
> > Sent: Saturday, November 10, 2001 9:32 PM
> > Subject: [amsat-bb] M2 Fiberglass Boom preparation
> >
> > >
> > > Dear Fellow Satellite Enthusiasts,
> > >
> > > I am in the process of setting up a satellite station, based around
the M2
> > > VHF(22 elements)/UHF (42 elements) line of antennas. I am using the M2
> > > Fiberglass boom and will turn the antennas with a Yaesu 5500 az/el
rotor.
> > >
> > > My question pertains to the fiberglass boom. Do I need to paint it, or
in
> > > some other way treat it? I am at 5100 ft (1553 Meters) ASL, 6 degrees
> > south
> > > of the Equator (i.e.: Sun and UV fairly intense). If I do, please
advise
> > > materials and process. TIA.
> > >
> > > Cheers, and 73,
> > >
> > > Norm
> > > ================================
> > > Norm Beasley, KO4CB / P29NB
> > > SIL PO Box 437
> > > Ukarumpa, EHP 444
> > > PAPUA NEW GUINEA
> > >
> > > Telephone:  +675 737 4667 (Home)
> > > Telephone:  +675 737 4203 (Work)
> > > FAX:        +675 737 3507
> > >
> > > E-mail:     norm_beasley@sil.org
> > > ================================
> > >
> > > ----
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> > >
> > ----
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>
>
>
>
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