Towertalk
[Top] [All Lists]

[TowerTalk] TOWER LOADING QUESTION

To: <towertalk@contesting.com>
Subject: [TowerTalk] TOWER LOADING QUESTION
From: n4kg@juno.com (T A RUSSELL)
Date: Thu, 12 Feb 1998 05:51:20 -0600
I would feel MUCH more comfortable with Rohn 45 or 55.
N4AR had a 40/20M combination on Rohn 25 many years 
ago and noticed the galvanizing began to crack on the top
section from all the twisting due to the high torque load.

Is this the antenna with 40M? If so, 80 to 100 ft might be
a better choice, with a high band antenna (10-20M) at 40 ft.
As you have heard me say many times, you need BOTH 
high and low antennas for the high bands.  On 40M,
80 to 100 ft is a killer height for the evenings.  At sunrise,
it is nice to have a really high 40M antenna (150 to 200 ft)
for the SSW  LP to central Asia and SKEW path to SE Asia.

de Tom  N4KG
...........................

On Wed, 11 Feb 1998 22:29:15 +0000 "Donnie Murray (KE4RNA)"
<ke4rna@Traveller.COM> writes:
>Will a properly installed Rhon 25G, 50-70 ft. high, with stabilizing 
>arms, handle a 149 pound beam antenna with a 36 foot boom. The ant 
>has 18 sq. ft. wind surface area, Wind load at 80 MPH is 450 lbs. The 
>ant is a Mosley "PRO-95". I will use a Tailtwister rotator. Any 
>thoughts???
>73/DX,
>DONNIE, KE4RNA
>

_____________________________________________________________________
You don't need to buy Internet access to use free Internet e-mail.
Get completely free e-mail from Juno at http://www.juno.com
Or call Juno at (800) 654-JUNO [654-5866]


--
FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com
Search:                   http://www.contesting.com/km9p/search

<Prev in Thread] Current Thread [Next in Thread>