[Uram-rejections] Masts and antennas

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> From webstump at chiark.greenend.org.uk Mon Feb 01 12:51:33 2016
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> From: RustyHinge <rusty.hinge at foobar.girolle.co.uk>
> Newsgroups: uk.radio.amateur.moderated
> Subject: Re: Masts and antennas
> Date: Mon, 1 Feb 2016 12:51:10 +0000
> Organization: Diss Organisation
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> On 27/01/16 17:55, Jerry Stuckle wrote:
> 
> > Brian,
> >
> > Have you tried sleeves?  They can be a bit hard to find sometimes, but
> > they exist for almost any ID and several different lengths.  I would
> > think a sleeve with an ID just slightly larger than the OD of the tubing
> > and of sufficient length (i.e. a foot or more) should provide a lot of
> > support.
> >
> > I also have a couple or 50' push up masts.  They work OK, but it's very
> > hard to push up the last few sections if you're standing on a ladder.
> > And it's just too weak to extend then leverage up by itself.
> >
> > One of the guys in our club has an old military "pushup" mast.  It comes
> > in sections about 4-5' long which interlock.  The base has a ratchet
> > drive to life.  Put the first section in, use the ratchet drive to raise
> > it.  When you have enough room, insert the second section into the base
> > and lock it to the first.  Repeat the process, attaching guy wires at
> > appropriate locations as you go.  It takes a while, but the mast
> > sections are thick wall and the whole thing is pretty sturdy.  We use it
> > at field day every year.
> >
> I nearly bought an old streetlight maintenance lorry with a jack-uppable 
> platform on a tower.
> 
> It had a cab/messroom, and because of its past life, boasted very low 
> mileage.
> 
> Unfortunately, I had nowhere to park it at the time.
> 
> -- 
> Rusty Hinge
> To err is human. To really foul things up requires a computer and the BOFH.
> 
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