I think you are making a mistake planning for a 120 foot tower on such a
small lot. Just face the music and calculate the maximum safe tower height
for your expected wind rating. Or, get a self supporting tower.
Keith NM5G
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Bryan
Sent: Friday, September 17, 2004 4:04 PM
To: towertalk@contesting.com
Subject: Fw: [TowerTalk] Concrete anchors
----- Original Message -----
From: "Bryan" <bryanponder@sbcglobal.net>
To: "Tower (K8RI)" <tower@rogerhalstead.com>
Sent: Friday, September 17, 2004 3:52 PM
Subject: Re: [TowerTalk] Concrete anchors
> The houses where I live all have varying amounts of land. Some have a
couple
> of acres, some have a 1/2 acre like me. None of the lots are square.. My
> plan was to put an anchor on each corner. They would all be about 85'
from
> the tower base. The problem is the sides. I would have about 130 deg
span,
> but I would have a 4th guy set to help out with the wind load. Unless of
> course physics works against me and this ends up causing too much stress
on
> the tower..
>
> My question with the anchor is how do I get a 7' rod in a 4' hole at a 45
> deg angle? According to the rohn drawing the equilizer plate is almost
> touching the ground.. I havent been able to find a Rohn catalogue I guess
> do to Radian buying them out.
>
> Thanks again for all the help.
>
> ----- Original Message -----
> From: "Tower (K8RI)" <tower@rogerhalstead.com>
> To: "Bryan" <bryanponder@sbcglobal.net>; <towertalk@contesting.com>
> Sent: Friday, September 17, 2004 3:26 PM
> Subject: Re: [TowerTalk] Concrete anchors
>
>
> >
> >
> >
> > >The drawing I have for the gac305 anchor shows them angled but doesnt
> give
> > >any hints on >how to do it. I know I need the hole to be 3x3x4 but
from
> > >there I'm not sure what I need to >do to get the anchor in the right
> > >position.
> >
> > "As I recall" (which means you still need to look it up in the ROHN
book)
> > the anchor comes out at 45 degrees and is far enough from the tower to
> point
> > between the the top two guy sets.
> >
> > >I have a yard that measures 180' long by 80' wide. I'm looking to
install
> a
> > >120' rohn 25g. Can >I run 4 sets of guys off the tower to make up for
> not
> > >having the 120 deg span?
> >
> > 120 feet on an 80 foot lot? You must not have neighbors, or no setback
> > rules. Even with 4 point guying you need the anchors much farther out
than
> > you can get them for a 120 foot tower on an 80 foot lot. At a120 feet
I'd
> > say you need 100 feet from the tower for each guy anchor. You can get
by
> > with a bit less, but that 120 feet on an 80 foot lot scares me.
> >
> >
> > Roger Halstead (K8RI, EN73 & ARRL Life Member)
> > N833R, World's Oldest Debonair (S# CD-2)
> > www.rogerhalstead.com
> >
> > Thank you for your help
> >
> > Bryan
> > _______________________________________________
> >
> > See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
> > Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with
> any
> > questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
> >
> > _______________________________________________
> >
> > See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
> Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with
any
> questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
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