On a short 45G i'm sure it can be done BUT it might be a pain if you have
to present engineering and one needs to be careful no to extend such a
tower
73 Roger (K8RI)
----------------------------------------
From: K7LXC@aol.com
Sent: Monday, December 10, 2012 4:17 PM
To: towertalk@contesting.com, john@kk9a.com
Subject: Re: [TowerTalk] TowerTalk Rohn loading
> Rohn assumes that you have other
wind loading such as multiple runs of Heliax running up each tower leg.
Personally I use a larger lower guy cable than specified when stacking
antennas.
Umm, I'd say this is a violation of the LXC Prime Directive to :DO
what the manufacturer says" and the inverse which is "DON'T do what they
don't
tell you."
The capacity of a tower is due to the leg strength. With a guyed
tower, there is a bunch of leg pre-load due to guy wire tensioning, and
don't
forget the weight of the guy wires. Using larger guy wire can increase the
load on the legs before anything is installed on the tower either by added
guy tension or added guy wire weight. I wouldn't recommend either.
And use of a larger guy wire doesn't really do anything to increase
the capacity or reliability of the tower. It's already been designed for a
certain set of materials and parameters.
Violation of the LXC Prime Directive is at your own risk.
Cheers,
Steve K7LXC
TOWER TECH
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