[TowerTalk] Fwd: Advice on Old TV Antenna Tower

[Jim Brown]

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 at 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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