I think I just came across a neat way to make a rotatable dipole without using
an insulator in the middle or splitting the dipole there.
This means there is no weakening the dipole in the centre which has always been
a hindrance in the construction.
http://www.xs4all.nl/~pa0fri/Ant/LA6PB/splitdipoleeng.htm
Just another way of using a choke, hi hi.
Another thought has just occured to me - it can even be used to make a trap
somewhere along the antenna by using a number of torois and just having a piece
of tubing around it with one side attached to the element and the other side
with a piece of teflon as dielectric to function as a capacitor. The neat idea
about this is that you can tune the antenna by sliding the torids / capacitor
along the element.
Enjoy!73,Marinus, ZL2ML
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