Topband: HEBA antenna

[Jim Brown]

On 4/19/2024 10:27 AM, Henry Pollock - K4TMC wrote:
> Isn't this basically a vertical dipole with capacity hats. I will admit
> that the top capacity hat is prettier than the copper foil bottom hat.

Yes, that's exactly what it looks like. Tom Schiller, N6BT, developed 
and mfd several designs, both for portable operation and for permanent 
installation.Tom was the engineer/owner of the original Force 12. Based 
on his work, W6GJB and I developed and built several versions for 80M FD 
and county expeditions. The Gap Titan, Hi-Gain AV-series, and Cushcraft 
R-series are multi-band vertical dipoles.

Ten years ago, I published this study showing that elevating vertical 
antennas increases their radiation efficiency and can also lower the 
angle of their main lobe in the vertical plane.

http://k9yc.com/VerticalHeight.pdf

73, Jim K9YC