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[TowerTalk] BIG tower

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Subject: [TowerTalk] BIG tower
From: (Pat Barthelow)
Date: Tue, 23 Dec 1997 09:34:54 -0800 (PST)
Hi Steve,

Any mention on the final as built cost of the tower, or the estimated 
payback time to the station for their investment?
...Pat, AA6EG/N6IJ  The contest Station from the

On Mon, 22 Dec 1997, K7LXC wrote:

>     If you've ever driven through the Midwest, you've probably seen some
> pretty damn big towers. Many are over 1,000 feet and they go up from there.
> Here's some information about one of the BIG ones being constructed in the
> Houston, TX, area.
>     This tower is the new broadcast tower for KKHT-FM and will be 1842 feet
> tall. From this height, the station will have an approximate 80 mile range of
> reception or 160 mile diameter covering some 500 square miles. Over 3.4
> million people live in this listening area. The tower was designed and
> fabricated by Kline Towers. The steel was delivered on 33 semi-trucks with a
> total weight of just over 1,500,000 pounds of steel and guy wires. The tower
> is triangular and has a constant 12 foot face width from bottom to top. The
> antenna will sit on top of the tower and extend another 85 feet for a total
> above ground of 1927 feet. Each section is 30 feet tall with individual
> section weights ranging from 15 tons or 30,000 pounds for the sections near
> the bottom to 6 tons or 12,000 pounds near the top. Each of the tower legs are
> solid round bars from 5 inches to 9-1/2 inches. When completed the tower will
> have an elevator from the base landing to within 50' of the top of the tower.
> The tower is guyed at 10 levels approximately 180 feet apart and the guy
> anchors are 1350 feet out. The outer guy anchors are over 1/2 mile apart. The
> guy wires range in size from 1-7/16" to 3" in diameter. The 3" guy wire is
> constructed of 199 individual wires and weighs 18.9 pounds per foot or
> approximately 47,000 pounds. The final tension required will be just over
> 110,000 pounds and will sag approximately 400 feet. Measuring the sag is the
> preferred method for checking the tension. 
>       Kinda puts things in perspective, doesn't it? This information was taken
> from "Tower Times", the monthly publication of the National Association of
> Tower Erectors (NATE). 
> 73,  Steve  K7LXC
>     TOWER TECH -- professional tower supplies and services for amateurs
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