Rohn 25G, bracketed at 18 & 36' will give you only 6.8 sq. ft. of
antenna at 90 mph wind load. This is without radial ice. (50 feet of
tower.)
Rohn 45G bracketed at the same points gives you a 50' tower with
20 sq. ft. of allowable antenna area. Still not great, but much better
than the 25G.
de KL7HF
Gene Smith wrote:
>
> If I put up a 40' to 50' self-supporting tower
> and bracket it to my house at about 15' just
> for a little added strength, will bracketing
> it cause any problems? This would not be a crankup.
> It would be Rohn 25G/45G, Universal aluminum,
> Titan, etc.
>
> I ask this because the bracket would cause additional
> downward force and less upward force on a tower
> and concrete base system designed for equal upward and
> downward forces. At least I think they would be equal.
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