A CW friend of mine, KW1C in Maine, has a rotary dipole for 40 and 30 meters 
that would probably fall into the expensive class as it's made by Optibeam 
of Germany. But the thing sure does play and Marty just loves it.
Lou Kolb
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----- Original Message ----- 
From: "Mike Duke, K5XU" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, August 28, 2014 6:51 AM
Subject: Rotary Dipoles


> In the spring of 1972, my 70 foot tower and TH4 tri-bander took a
> tumble during a storm.
>
> My dad and I salvaged enough antenna pieces to build a 10 meter dipole,
> which we put on a 30 foot mast.
>
> That was my only antenna for the next 3 months until I got a tower and
> 2 element quad near the end of the summer.
>
> I was amazed at how well that dipole performed, especially since this
> was during a time when 10 meters was not at a solar cycle peak.
>
> It would be fun to have such an antenna on 40 meters. There are a few
> commercial models out there, but they are either rather expensive, or
> very short, loaded models that do not cover the entire band.
>
> -- 
> Mike Duke, K5XU