[TowerTalk] Guyed vs. free-standing

Russell Hill rustyhill at earthlink.net
Mon Oct 15 09:48:16 EDT 2007

So for this dummy, for a given height and load, in the 60 to 80 foot range, 
does the guyed tower still retain its cost advantage when you factor in the 
extra anchor points with the steel in them and the guy wire or Phillystran 
for the tower?

Rusty, na5tr

----- Original Message ----- 
From: <K7LXC at aol.com>
To: <towertalk at contesting.com>
Sent: Monday, October 15, 2007 8:19 AM
Subject: Re: [TowerTalk] Guyed vs. free-standing

> In a message dated 10/14/2007 8:15:50 P.M. Pacific Daylight Time,
> towertalk-request at contesting.com writes:
>>  I see where KA9FOX put up a self supporting 72' Trylon at  his old qth 
>> and
> at his new qth, he put up a 95' Rohn 55G.  I know at his  old qth, he 
> didn't
> have the space for the 55G.  Other than the additional  feet between the 
> two,
> what are the advantages of the guyed Rohn tower over the  self-supporting?
>    Scott has a rotating tower. You can  mount beams anywhere on the tower
> and they'll all turn together. If it  was a standard fixed 55G you could 
> still
> have side-mounted antennas using  swinging gate side-mounts or TIC 
> rotators.
> The additional face width of the  self-supporting tower makes this kind of
> difficult.
>    Another difference is the load at height. If you  wanted to go higher
> with the self-supporter, the tower capacity goes down  fairly quickly; not 
> so
> fast with the guyed tower since it uses the guy wires  as part of the 
> supporting
> structure. Guyed towers are typically cheaper  because of that. The cost 
> of a
> tower is the cost of the steel in it.  Self-supporting towers generally 
> have
> much more steel in them for the height  than a guyed tower so they're more
> expensive.
> Cheers,
> Steve     K7LXC
> _www.championradio.com_ (http://www.championradio.com)
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