As we say around here: Long masts are not substitutes for tower sections.
73,
Gerald K5GW
Texas Towers
In a message dated 2/12/2014 2:30:20 P.M. Pacific Standard Time,
lwloen@gmail.com writes:
I'm no engineer, either, but that fits my way of thinking too.
I'm biased, too, by a colleague with a tall tower and a big mask sticking
out the top. He was a VHFer.
He got a fairly big storm. The mast bent, but the tower (and even the
antennas) survived. But, yeah, if I had a tall enough tower I'd give up
the mast and antennas instead of the tower if I could design that in
properly. Guy the tower, give up the mast.
Larry WO7R
On Wed, Feb 12, 2014 at 2:00 PM, <w6rgs@cox.net> wrote:
> Matt,
> You didn't mention the height of your tower or if it is crank-up or
guyed.
> If it's a crank-up, I'd just lower the tower when a storm is expected.
> If the tower has no other guying, think about where your tower is going
to
> be flexing during that hypothetical severe storm, while the mast is guyed
> and the base is in concrete. While I don't have an engineering degree,
I'm
> picturing the tower flexing in the middle. Seems like the tower would
fail
> in the middle. I'd rather lose the antenna, instead of an expensive
tower.
> I'm sure there is someone with engineering experience here that can use
> facts instead of speculation.
> Bill W6RGS
>
>
> At 11:45 AM 2/12/2014, Matt wrote:
>
>> 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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