[Elecraft] 80 Meter Verticals
Jim Brown
jim at audiosystemsgroup.com
Wed Mar 1 12:46:44 EST 2017
On Wed,3/1/2017 5:25 AM, Charlie T, K3ICH wrote:
> Is there any truth in the theory of making the vertical radiator out of multiple wires such as ladder line and even adding a third wire woven through the ladder sections and fed on one wire?
Nope. And that's not "theory," that's someone's dumb idea. :)
BUT -- using multiple spaced conductors in parallel and connecting them
at both ends makes the conductor "thicker," which both lengthens it 1-2
percent and broadens the SWR bandwidth. The same thing happens with a
tower as compared to a single wire. The vertical part of my 160M Tee
vertical is a pair of #12 spaced about 9 inches. When I added the second
wire, I observed that my SWR bandwidth approximately doubled.
73, Jim K9YC
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