[TowerTalk] Rohn Self Support Chart Says.......

[Daron J. Wilson]

I believe the older catalog did not show guy wires or specific guying at all
until 40 feet.  While you could order, buy and install a 30 foot tower,
there were not any engineered solutions for guy wires on it (as I recall).
I'll have to dig for the catalog as well.

I would agree that based on the design of the tower, it is not intended to
be freestanding.  However, I've got a couple that are poured base, anchored
at the roofline, and 20-30' above the anchor point unguyed.  Of course it
all depends on what you put on it. 

Good Luck! 


> -----Original Message-----
> From: towertalk-bounces at contesting.com [mailto:towertalk-
> bounces at contesting.com] On Behalf Of K8RI on Tower talk
> Sent: Friday, May 12, 2006 8:57 PM
> To: TOWERTALK at contesting.com
> Subject: Re: [TowerTalk] Rohn Self Support Chart Says.......
> 
> My 1990 catalog states "Guyed ROHN towers are not self supporting at any
> height".
> OTOH it seems like I have an older catalog that gives information for self
> supporting installations. Unfortunately I haven't been able to find it.
> 
> Roger Halstead (K8RI and ARRL 40 year Life Member)
> N833R - World's oldest Debonair CD-2
> www.rogerhalstead.com
> 
> >
> > In a message dated 5/12/2006 4:10:01 P.M. Pacific Daylight Time,
> > towertalk-request at contesting.com writes:
> >
> >>  Hmm...that's interesting, thanks for the file.
> > Given that  Steve has maintained that 25G isn't self-supporting at any
> > height  literally dozens of times on this reflector, I wonder if that
> > document  from 1987 has been superceded.
> >
> >
> >    Umm, really? Doesn't sound  familiar.
> >
> >    My reference is a little Rohn pamphlet called  "Manufacturer's
> > Technical
> > Information for Bracketed or Self Supporting Towers  - 25G, 45G, 55G &
> > SSV".
> > Forty-feet of free standing 25G can take 1.5  square feet @ 70 MPH -
> your
> > basic
> > TV antenna. At 30-feet it'll take 1.7 square  feet @ 90 MPH.
> Surprisingly
> > capable.
> >
> >    I've had this pamphlet for years and don't know  if it's available on
> > the
> > website.
> >
> > Cheers,
> > Steve     K7LXC
> > TOWER TECH -
> > Professional tower services for hams
> > Cell: 206-890-4188
> >
> >
> >
> >
> > _______________________________________________
> >
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> >
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> 
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