but...but...but..they said it can't be done!
now look what u done....
ken n8gan 73...
----------
> From: Stan Griffiths <w7ni@teleport.com>
> To: Rick Bullon <kc5ajx@hotmail.com>
> Cc: towertalk@contesting.com
> Subject: Re: [TowerTalk] Rohn 25
To: <towertalk@contesting.com>
> Date: Wednesday, March 25, 1998 6:34 PM
>
> > With all the discussion about Rohn 25 and windloading etc. You have
> >almost convinced me that trying to fold over my Rohn 25 tower not only
> >isn't going to work but that the tower is only good for uhf vhf
> >antennas!!!
> > Well I guess the TH6 is going to stay in the barn for another 3 or 4
> >years and I get to keep using my Butternut vertical for my only antenna.
> >It is ashame too as I have 5 empty acres and all I can do is a lousy
> >vertical makes me lose all incentive to upgrade
> > Not flaming anyone just upset that I can't do anything better that
> >what I have. It wouldn't be so bad if I lived on a small city lot
> >73
> >Rick
> >kc5ajx (tech plus forever)
>
> Hi Rick,
>
> I have had 102 feet of Rohn 25 successfully installed since 1973 with the
> following antennas on it: At 112 feet: 5 element 10 with 20 foot boom.
At
> 102 feet: 6 element 15 with 32 foot boom. These two antennas are
rotated
> together with a Tailtwister. At 70 feet: 4 element 10 with a 12 foot
boom
> fixed on the SE. At 55 feet: 4 element 10 on a 12 foot boom. At 50
feet:
> 4 element 15 with a 20 foot boom. These two antennas rotate together on
a
> homebrew sidemount for about 300 degrees. This tower also supports one
end
> of an 80 meter wire sloper and one end of a 160 meter wire sloper both
tied
> to the top of the tower. It also has a two meter ground plane at about
60
> feet and a commercial pager antenna at 90 feet (a 2 inch diameter
vertical
> about 8 feet high and offset from the tower about 18 inches).
>
> The tower is set solidly in concrete and guy wires (four sets guyed three
> directions) do all the work. I used very good earth anchors purchased
from
> a utilty supply company set 6 feet below the surface and I use 3/16
> galvanized wire rope (4200 pounds breaking strength), 1/4" forged
> turnbuckles, 500D strain insulators every 20 feet in each guy, and mostly
> crimp on copper sleeves as cable clamps except in a few places where I
use
> conventional wire rope clips. The thing looks as solid as the day I put
it
> up. I would hesitate to put any more stuff on it but I have no problem
> climbing to the top to work on the antennas.
>
> For those who will tell me it is overloaded, it probably is, but I put it
up
> long before I was smart enough to know that and its peformance history
tells
> me it probably will not fall down at this stage in its life. I feel safe
> with it.
>
> Stan w7ni@teleport.com
>
>
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