[TowerTalk] Re: [CQ-Contest] SteppIR 4 Element Yagi - Analysis and Thoughts

Arne Gjerning gjerning at flash.net
Tue Apr 13 06:50:57 EDT 2004


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
>
>




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