[TowerTalk] Can anyone identify this tower?

[W0UN -- John Brosnahan]

Steve--

You are missing the key shot of a joint between sections to be
definitive--but there are some clues and some questions.

1)  The welding does not look like Rohn--On a Rohn tower you
can take a straight edge across two legs and it will slide up and
down without hitting any of the diagonals.  On a Universal  Tower
doing this test will result in hitting the diagonals.  In the first picture
it is hard to be sure but it appears the diagonals are raised enough
to make it look like Universal Tower.

2)  A magnet will easily answer the steel vs. aluminum question.

3)  The ten 6ft sections could be mis-remembering six 10ft
sections and the taper seems to indicate three different sizes--
of 20 ft each.   But hard to tell from the photo.

4)  Rohn tower is swaged in such a way as to let the water run
on the outside of each section joint.  Universal is bass-ackwards
and each section joint causes the water to run down the inside.

5)  Universal has the last brace end up on a diagonal whereas Rohn
ends on a horizontal.   A photo of a joint would help here as well.
The Universal top diagonal is just butt welded on the end of the rod
without being bent and welded over a larger surface.

6)  Rohn sections have the ends of the bracing bent back towards
the center of the section, whereas Universal has the bottom (only)
bent the other way--towards the end.

So, a photo of the area where two sections join -- probably 10 ft
up (and not 6 ft) -- would answer much more definitively if it is Universal
Tower.  And Universal makes a tilt-over base.  If it is NOT aluminum
then all bets are OFF!

But my guess is that it is Universal Tower with two sections of 18 inch,
two sections of 14 inch, and two sections of 11 inch.  And it would make
a very nice 80M vertical or support for some relatively smaller Yagis--
preferably VHF.

http://www.universaltowers.com/catalog.htm

John   W0UN





At 12:54 PM 2/3/2004, Clary, Steve wrote:

>I don't think the current owner really know what it is.  He says it's made
>by "Roan Tower Co"  and it's a "pro 60".  (Of course Rohn Towers doesn't
>have a 'pro 60' model that I can find.
>
>He also says it's aluminum, but it doesn't look aluminum per the picture.
>
>Other facts (as stated by current owner):
>
>60 foot (10 ft sections)
>Measures 18 inches at base, tapers up from there.
>Tilt over (from the base)
>Non-guyed
>
>
>Here are the pictures (I promise these two links will not produce pop-ups):
>
>www.urmc.rochester.edu/tower1.jpg
>
>www.urmc.rochester.edu/tower2.jpg
>
>Thanks in advance for your help.
>
>Steve
>
>
>
>
>
>
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>
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