Did you run this though a mast calculator? This sounds like a self
supporting tower, will it hold up to hurricane winds If you guy the mast,
you probably should guy the tower as the tower will move otherwise. I would
be more concerned about saving the tower from damage. BTW, the mast guy
does not need to be a ring, in fact it is probably better if it did not
allow rotation.
73, from snowy North Carolina
John KK9A - W4AAA
To:Dan Cisson <n4gnr@windstream.net>, "towertalk@contesting.com"
<towertalk@contesting.com>
Subject:Re: [TowerTalk] Guying mast above rotor
From:Matt <bluewaterpro@yahoo.com>
Date:Wed, 12 Feb 2014 15:53:32 -0500
List-post:<towertalk@contesting.com">mailto:towertalk@contesting.com>
I was thinking of mounting the guy ring 12 feet above the tower which is 2"
solid steel Pirod, with 48" face at base. The mast is 2.75 cromoly. Just
for
added stability.
-----Original Message-----
From: Dan Cisson
Sent: 2/12/2014 3:11 PM
To: Matt; towertalk@contesting.com
Subject: Re: [TowerTalk] Guying mast above rotor
Matt....an opinion only... You are really not accomplishing much if
anything...You say you are guying the mast 12 inches out the top of the
tower ?? All you are doing at this point is asking a storm to bend the mast
above the guy ring...Long masts are asking for trouble, there is a heck of a
lot of leverage on the top of a long mast in high winds...You could possibly
be OK with a 6 meter beam atop the mast, or a 2 meter beam, its a gamble !!.
But if you put up an antenna that is much bigger than a 10 meter yagi,, you
are asking for PROBLEMS !!I have took down too many of them in my days of
tower work. Other alternatives are another tower(probally not an option for
most hams).. or fixed antennas down the tower...It is expensive, but you can
rotate the complete tower!! I would check with antenna manufactures and see
how close you can stack their antenna to other antennas on the same mast.
It will be interesting to see what other opinions you get here on TT.. Good
Luck, and be CAREFUL !! ,,Dan N4GNR
----- Original Message -----
From: "Matt" <bluewaterpro@yahoo.com>
To: <towertalk@contesting.com>
Sent: Wednesday, February 12, 2014 2:45 PM
Subject: [TowerTalk] Guying mast above rotor
>I know the subject line sounds dumb,, but I have 15' of mast above my tower
>and live in South Florida. Read on...
>
> Im thinking of putting a guy ring at about 12' above the top of the tower,
> and, only in event of a severe storm, attach 3 guy wires, which would be
> anchored in concrete, the cables sitting on the ground, affixing them to
> the collar in event of storm.
>
> I've also thought of having short guy wires permanently mounted on the
> guy ring collar, with the short guy cables running down the mast to the
> top of the tower. Then i could climb up and attach the guy wires, if
> needed. No need for a bucket truck.
>
> I think this would provide additional survivability to the mast in heavy
> wind
>
> Any thoughts on this? Good idea, bad?
>
> Thanks/73
>
> Matt w1mbb
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