K7LXC@aol.com wrote:
> In a message dated 8/19/2009 4:23:43 A.M. Pacific Daylight Time,
> towertalk-request@contesting.com writes:
>
> > Ive used dirt bases at all of my locations since 1961 with nary a
> problem. They are usually go about 5' down to the crushed rock . The
> last couple I fabricated out of 3/4" steel rod and 1/8" Steel
> strap, 2"
> wide. I gave it a good two coats of paint and planted it. Yes it's
> heavy but didn't cost much and has proven very effective.
>
> > The dirt base only serves two real functions; The first to keep
> the base
> of the tower from moving sideways and the second is to keep it from
> sinking into the ground. Setting it on crushed rock helps here.
> However to work well the soil needs to be firm and not acetic. A
> hole
> in damp sand with a half a foot of crushed rock will support a lot of
> weight. Pea gravel is not as effective.
>
> I think we're talking apples and oranges here. The original
> poster wants to install a free-standing crank-up and I'm surmising
> that you are referring to guyed towers. Putting a self-supporter
> in dirt alone is a recipe for disaster. And, as always, follow the
> LXC Prime Directive to "DO what the manufacturer says."
>
Agreed! I understood every one to be talking about a "guyed" tower.
73
Roger (K8RI)
>
> Cheers,
> Steve K7LXC
> TOWER TECH
>
>
>
> ------------------------------------------------------------------------
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