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Re: [TowerTalk] Re: [CQ-Contest] SteppIR 4 Element Yagi - Analysisand Th

To: "Grillo's" <ah3c@frii.com>,"Towertalk Reflector" <towertalk@contesting.com>,<cq-contest@contesting.com>, "Dan Levin" <djl@andlev.com>
Subject: Re: [TowerTalk] Re: [CQ-Contest] SteppIR 4 Element Yagi - Analysisand Thoughts
From: "Arne Gjerning" <gjerning@flash.net>
Reply-to: Arne Gjerning <gjerning@flash.net>
Date: Tue, 13 Apr 2004 05:50:57 -0600
List-post: <mailto:towertalk@contesting.com>
I do not think the physical element gets any shorter on 6M than on 20M.
Only the tape inside the tubing is shortened for the different bands.  Wind
loading would stay the same regardless of band.  This from memory of seeing
one at Visalia several years ago that was opened for inspection of the
motor/and tape mechanism.  Please correct me if wrong.

73 de Arne N7KA


> Nice analysis, Dan.
>
> Another feature to think about:  Wind load can be reduced during high wind
> conditions by switching to 6 meters.  Does anyone know of an anemometer
with
> an adjustable alarm setpoint for relay switching at a preset wind speed?
>
> Pete -
> W0RTT
>
>


_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

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