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Re: [TowerTalk] Installation Rohn 25G

To: "David Calder" <n4zkf@n4zkf.com>,"'Roger (K8RI)'" <K8RI-on-TowerTalk@tm.net>,"'TowerTalk'" <towertalk@contesting.com>
Subject: Re: [TowerTalk] Installation Rohn 25G
From: "D. Scott MacKenzie" <kb0fhp@comcast.net>
Reply-to: kb0fhp@comcast.net
Date: Sun, 11 Nov 2007 20:31:53 -0500
List-post: <mailto:towertalk@contesting.com>
Bracketing makes all the difference in the world.  Looking at the Rohn
catalog, it makes a huge difference in the load carrying capacity whether
they are freestanding or bracketed.  Your results do not surprise me at
all....

-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com]On Behalf Of David Calder
Sent: Sunday, November 11, 2007 8:07 PM
To: 'Roger (K8RI)'; 'TowerTalk'
Subject: Re: [TowerTalk] Installation Rohn 25G



Look at the following link.

http://www.n4zkf.com/shack.htm

Scroll to the bottom. The two towers you see. Both are 40' Rohn 25 "not
guyed".
1 has a A3S tribander, a 12 el 2 meter SSB AND a 24 el 440 SSB antenna on
it.

The other has a 6 Meter beam, stacked 2 meter beams and an omni.

Now, they are tied at 10' with a house bracket on the roof. But they are
NOT GUYED. Google earth my QTH and you will see I live 1000' off the ocean
beachside, saw
3 hurricanes in as many weeks come right over top of me a few years ago and
they
are both standing. What can I say.

73 Dave
n4zkf


-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Roger (K8RI)
Sent: Sunday, November 11, 2007 6:24 PM
To: AD5VJ Bob; towertalk@contesting.com
Subject: Re: [TowerTalk] Installation Rohn 25G




> Just so no one thinks I am crazy :)
>
> A couple of guys have talked about needing guy wires. and that
> probably many others would say the same thing:
>
> I do plan on putting guy wires on but just cant afford them right now.
> I will add them after I get it all up in the air.
>

Just for a bit of clarification:
After reading the previous postes I'm a little confused. How high are you
going before you put up the antennas and guys?
That size base isn't suficient to hold a 40 foot 25G and tribander without
guys except on a very calm day. I'd also be apprehensive about climbing 40 a
foot 25G without guys even on a calm day.

Fortunately 40 feet and a small tribander don't take an elaborate base and
guy system which becomes much more substantial in a hurry as you add height.

I have a rather simple and effective, but heavy gin pole I constructed.  If
I can find everything I'll try and  shoot some photos and put them up on my
site.

Good Luck and be careful.

Roger (K8RI)
> Problem is, I was off work for two and a half weeks due to shoulder
> and neck problems so our paycheck is very limited right now. I am back
> to work so should be able to do the over time to be able to afford
> them in a month or so.
>
> I have to figure out a way to make a gin pole to get the other
> sections up so while I am doing that I figured I would put the base in
> the ground to set good. and then probably to the guy wires after that.
>
> Bob AD5VJ

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