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Re: [TowerTalk] Fwd: Advice on Old TV Antenna Tower

To: towertalk reflector <towertalk@contesting.com>
Subject: Re: [TowerTalk] Fwd: Advice on Old TV Antenna Tower
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Sun, 2 Jul 2017 07:52:13 -0700
List-post: <mailto:towertalk@contesting.com>
We all hope you survive it.

73, Jim

On 7/2/2017 12:38 AM, N1BUG wrote:
Try climbing 75 feet of Rohn 6, then 10 feet up a fixed aluminum mast that is guyed 20 feet above the tower. The tower flexes and twists, the mast flexes. Fortunately I will be doing that for the last time in a few weeks when the whole thing comes down to be replaced by 100+ feet of Rohn 25.

Paul N1BUG


On 07/01/2017 08:05 PM, Hans Hammarquist via TowerTalk wrote:
I was told that aluminum towers are more springy than steel towers. Mine is an aluminum, guyed though. I still experience the vibration when I am in
between  the ground and the guy point. Was very scary the first time I
climbed it but am  use to it now.
I believe the "Q" value of aluminum is higher than steel. Therefore the
aluminum tower vibrate more than steel towers when you climb them.
  Any takers?
  Hans N2JFS
  In a message dated 7/1/2017 1:37:30 P.M. Eastern Daylight Time,
john@kk9a.com writes:

My 60' Universal Aluminum tower used to move when I climbed it. It seemed like a lot of movement but as Jim said it probably was not. I sort of got
use to the movement and never had an issue.

John  KK9A
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