Thanks Al I was just about to write the same thing .. all you are
doing is stopping the bottom of the tower from kicking out the only
time I pour c-ment is free standing towers
agin Al is right .. a good house bracket will do wonders , if I am
going more then I put a X brace from the roof to the tower aswill
I have not lost a tower in 15 years ..
Rick
On 27 Dec 2005 at 20:52, Al Wolfe wrote:
> Doug,
> For what you plan to do there is no reason at all to use concrete.
> Back
> in the Sixties I helped install dozens of thirty and forty foot Rohn
> towers for TV receivers and never used the first bag of cement when
> using a house bracket. Many of these towers are still in use today.
>
> With a good house bracket installation you should be able to go
> twenty
> feet above the house bracket. Dig a hole about two feet deep and put
> your first section in it. Put a couple of bricks under the two legs
> next to the house. Put an inch or two of pea gravel in for drainage.
> If you do the house bracket right (bolted into something very
> substantial) it will last forever. Been putting them up this way for
> more than forty years but will quit when the first one falls down.
>
> A piece of Rohn 25 will break into before you can move it sideways
> if
> it's two feet in the ground. I repeat, there is no good reason to use
> concrete with a good house bracket install! Let the house bracket do
> its job.
>
> If you still feel you must use concrete at least keep the top of
> the
> slab six inches or more below grade. That way when you move you can
> cut the tower off below grade and there is no visable evidence that
> there was ever a tower there. The tower should extend down though the
> concrete into some gravel for drainage.
>
> 73,
> Al, K9SI, also 62
>
>
> Date: Tue, 27 Dec 2005 00:40:34 -0700
> From: Doug Fitts W7FDF <[EMAIL PROTECTED]>
> Subject: Tower Installation
>
> My last posting for 2005 with a question:
>
> <snip>
>
> So please comment/send thoughts and suggestions on your own
> experiences with tower installatons. I am looking forward to "getting
> my hands dirty", digging the hole for the tower and rebar and pouring
> the cement...and at age 62, I NEED the exercise!!
>
> Best 73 and **Happy Holidays**
>
> Doug Fitts W7FDF
> Vail, Arizona U.S.A.
> Cienega Radio Network
> 927.8500/R
> 449.925/R
> 448.250/R
> IRLP node 3850
> Echolink 47474
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Daisy , Sir Red-A-Lot
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