[TowerTalk] Lowering mast on fixed tower

Dan dhearn at ix.netcom.com
Sun Sep 14 18:23:29 EDT 2003


Bob: I have some steps which can be bolted to the mast to clmb it. They are
made of 6 inch wide aluminum channel with 2 muffler clamps on each. I even
installed a bolt on each end of the top surface so my foot does not slip off
the end of the step. I was fortunate to get the channel material at a
surplus sale. It was part of a heavy duty open relay rack. I attach the
steps when I need to climb the mast and remove them when I am thru.   73,
Dan, N5AR

----- Original Message -----
From: Bob Gates <regates at kingwoodcable.com>
To: Tower Talk <towertalk at contesting.com>
Sent: Sunday, September 14, 2003 10:38 AM
Subject: [TowerTalk] Lowering mast on fixed tower


> Please excuse what, for most, is probably an elementary question.  But I
feel
> like Rip van Winkle, coming back into the hobby at such a late date.  I
have a
> question that I cannot figure out the solution to in my mind.  Assume a
fixed
> height tower, say Rohn 45G.  Assume a rotor mounted to an accessory plate
5'
> below the top, with a 20' heavy duty mast extending up through the tower,
Then
> assume a yagi installed 10'-12' above the top of the tower.  How does one
> perform maintenance on this antenna?  I assume you would need some means
to
> remove the rotor and lower the mast down through the tower.  After work is
> completed, you would then need to raise the mast back up to the desired
height
> and reinstall the rotor.  The problem is increased if there is another
antenna
> installed on the mast, say 1' above the top of the tower.  Obviously you
could
> hire a crane at a gazillion dollars per hour to pick up the assembly and
set it
> on the ground.  But how would you do it without one?  Realistically, can
you
> climb up the mast to work on the top antenna?
> Thanks in advance,
>
> Bob  KG7KW
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>
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