On Tue, 3 Mar 2009 00:15:04 -0000, Geoffrey Mackenzie-Kennedy wrote:

>If a resonant trap is placed at the bottom end instead of a choke as an 
>insulator, 

A coaxial choke wound on a ferrite core IS a parallel resonant circuit. 
Properly done, the choke should be wound to place the resonant frequency 
where the antenna will be operated!  Study the references I cited in the 
earlier post.  

As to your other suggestions -- yes, this method of feeding opens up many 
interesting possibilities!  

73,

Jim K9YC


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