[TowerTalk] Digging holes for anchor rods

[Rex Lint]

As Jim wrote, the ANGLE the guy makes with the tower IS IMPORTANT.  A
thought experiment: put one achor out at 1000 feet and the other two in at
30 feet.  The near ones are pulling almost straight down, the far one is
pulling almost straight out.  This is not a stable situation.  If the ground
is flat, make them all equal (and the angles will automatically be equal).
If the ground is not, make the ANGLES the guy makes with the tower equal.

I've seen a tower bent over because the wires were unevenly spaced.

      -Rex-
 
     K1HI
       Rex Lint
       Merrimack, NH 


-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of chas
Sent: Wednesday, April 28, 2010 2:13 PM
To: Tower and HF antenna construction topics.
Subject: Re: [TowerTalk] Digging holes for anchor rods

Jim Brown wrote:
> On Wed, 28 Apr 2010 09:20:01 -0400, Mark Robinson wrote:
>  What matters is 1) the ANGLE between the guy wire and the tower which
should 
> be held at Rohn's recommendations, and the horizontal angle between the
guys, 
> which should be close to 120 degrees. 
> 
> 73,
> 
> Jim K9YC


Jim, don't you reckon that if you had to sacrifice one vs the other that the

support every 120* on the compass is probably more important than the 
distance out from the base to the support pipes?  as long as the latter 
exceeds the 80%?

In fact, here on the coast, I really think that the compass spread is a lot 
more important considering that with a hurricane, flat winds, downbursts and

all that sort of thing that we have down here...  can come from every 
direction... iow, forget trying to guy against assaults from prevailing 
directions.   sure as shooting, you will get something from your weak side!!

thanks
chas
-- 
chasm at texas.net   k5dam  Houston, TX

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