Topband: Broadband vertical

[ersmar@comcast.net]

Gents:

     My shunt wire consists of two parallel #14 wires separated from each other by 18 inches and held off the tower face two feet.  I use several T's constructed of 3/4 inch PVC tubing as the support elements for these wires up the tower face.  Perhaps this arrangement is what helps my shunt-fed tower exhibit such a broad BW on 160M.  If anyone wishes a photo, let me know.  

73 de
Gene Smar  AD3F


> 
> To improve bandwidth, you can take steps that increase the
> amount of capacitance used in the shunt feed capacitor. That
> would be a larger diameter drop wire or a cage of drop
> wires. Rather than messing around switching components, I'd
> use a multiple conductor drop system with wires spaced as
> far apart as possible.
> 
> 73 Tom
> 
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