[TowerTalk] Guyed vs. free-standing

Dan Hearn dhearn at air-pipe.com
Mon Oct 15 10:33:59 EDT 2007


Of course, everything Steve says about the comparison is true. However
nothing has been said about installing antennas on the tower. The self
supporting tower allows yagis to be raised vertically with ease while guyed
towers require working the antenna thru the guy wires. The Trylon or AN
towers look good to me although I use crankups and find them to be an
excellent choice. They can be bought used quite reasonably in SK estate
sales in this area and can be hauled on a boat or car transport trailer. I
will concede that the bolt together towers, either guyed or not are easier
to transport. These are some other factors to be considered.

73, Dan, N5AR

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com]On Behalf Of Russell Hill
Sent: Monday, October 15, 2007 6:48 AM
To: K7LXC at aol.com; towertalk at contesting.com
Subject: Re: [TowerTalk] Guyed vs. free-standing


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?

Thanks,
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
> TOWER TECH and
> _www.championradio.com_ (http://www.championradio.com)
>
>
>
>
>
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