I had a Telrex 6el 20m beam and a HyGain 204 that made an annoying rattle in
the wind. The HyGain also shed element tips. I have never tried rope in the
elements, one thing that I dislike about it is it requires end caps which
can trap water. Later I built Homebrew beams with the ARRL 120MPH element
taper schedule and the noise and breakage ceased.
John KK9A
To: towertalk <towertalk@contesting.com>
Subject: Re: [TowerTalk] Antenna & Tower Wind Load Ratings
From: Steve Maki Date: Fri, 16 Jun 2017 21:22:58 -0400
>On 6/16/2017 10:53 AM, Jim Thomson wrote:
>Vortex shedding is well known. Eles vibrate up + down like crazy, like
6
>Inches in total,
>in just a light breeze. Ask anybody who own a 204BA or any wilson product.
>Those swedged eles are a pita..and so is
>having to put rope inside the eles..which is still in the current Hy-gain
>204-BA manual.
While rope in the elements is not what I'd call an elegant solution; it
works, and works well in almost all cases to completely cure breeze flutter
without having to toss an existing antenna in the trash and start from
scratch.
-Steve K8LX
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