[Antennas] Building Full-Size 80m Vertical Query-Help. . . . .

[K1TTT]

Try some heavy lexan.  It should be fairly easy to find 1/4" thick or so
locally at a place that does commercial windows and doors.  Maybe you can
get some scraps or cutoff pieces from them cheap.  I would double it up at
least, maybe 3 pieces thick, bolt it to the legs and to a ground support of
some kind.  For that size vertical you could probably get away with burying
some 4x4 posts 3-4' down with concrete around them, it probably depends on
your soil, but that's what I would start looking at.  


David Robbins K1TTT
e-mail: mailto:k1ttt at arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
 

> -----Original Message-----
> From: Aa9mo at aol.com [mailto:Aa9mo at aol.com]
> Sent: Friday, August 07, 2009 23:26
> To: Antennas at mailman.qth.net
> Subject: [Antennas] Building Full-Size 80m Vertical Query-Help. . . . .
> 
> I was recently given four tower sections of Rohn HBX - - - the four  top
> sections, and would like to use them to build a full-size 80-meter
> vertical.
>   Those four sections would make up the lower 32 feet  of the vertical,
> and
> I have more than enough aluminum tubing to make up a mast  for the top
> section of about 35 feet or so.
> 
> My question, is that I'd like to insulate the three base legs from ground,
> and I really can't spend much to do so.
> I would really appreciate any and all suggesstions on how I might be able
> to reliably insulate the three legs, while providing a sound structure.
> My plan is to solidly attach the tower sections to reinforced areas on a
> side of the house at about 15 and 24 feet, so that the tower sections can
> be
> safely climbed.
> 
> Thanks for any help and consideration,
> Susan, AA9MO
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