Yes, those broken tips are caused by the vibration fatigue failure
which occurs when the elements "HUM" in the wind. Damping them
internally (rope is sometimes used) and capping the ends (or using
silicone seal with a tiny drain hole) usually stops that problem
before it occurs.
73
Don
N8DE
Quoting Dino Darling <dino@kx6d.com>:
> .058" is correct. The common tip thickness is .047". I'm not sure I've
> ever seen one at .03x".
>
> Using .047" is common because of less weight, cost, and it doesn't
> support another element...as stated. And yes, it DOES explain all the
> broken tips, especially in windy environments!
>
> Dino - KX6D
>
>
> -------- Original Message --------
> Subject: [TowerTalk] Wall thickness?
> From: K7LXC@aol.com
> Date: Sat, July 14, 2012 1:39 pm
> To: towertalk@contesting.com
>
>
> Howdy -
>
> I'm fixing a couple of broken F12 elements and need to know what the
> typical wall thickness is for normal aluminum antenna elements. It seems
> to
> me that 0.058" is a number I've seen before but want to confirm that.
> Tnx.
>
> Cheers,
> Steve K7LXC
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