Topband: Detuning grounded tower from ground

David J. Sourdis hk1kxa at hotmail.com
Thu Nov 12 19:45:07 PST 2009


Hello,

I wonder if is it possible to use a detuning device like, i.e., the wire rectangle and series variable cap connected to a tower section that electrically vanishes it, to install and tune it at the first meter or first two meters of a grounded 70' tower and "disconnect" (RF isolate) it from ground. To then be able to add loading devices, like capacitive hats in a HVD fashion or coils, to tune the sistem as a parasitic element coupled to a shunt fed tower at the right distance. Ground or elevated radials are a no-no in this case.

Does someone have any information or experience on the subject? Or maybe any suggestion on how to take advantage of this nice self-standing piece of grounded conducting material as parasitic element?

73

David  
HK1KXA
EC5KXA


 		 	   		  
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