Topband: Caged Inv-L - Pros and Cons ?

Jim Brown jim at audiosystemsgroup.com
Tue Jan 24 20:34:30 PST 2012


On 1/24/2012 6:29 PM, Dan Bookwalter wrote:
> I am considering modifying my Inverted L such that the vertical part (~ 70 ft) is a cage of say 4 wires , purely for bandwidth. Besides BW any Pro's and or Con's to this idea ?

I'm using two #10 stranded copper wires, spaced roughly 6 inches using 
some old insulators I bought at hamfests as spacers.  It roughly doubles 
the SWR bandwidth. The only downsides are more wind load and greater 
visibility. I would expect four wires to be roughly twice as much of all 
three. :)

Expect a small difference in the tuning (resonance).

73, Jim K9YC


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