[Elecraft] AX1 dipole

[john at kk9a.com]

The short Force 12 Sigma vertical dipoles that N6BT designed were very
impressive. It is too bad that they are no longer manufactured. I have a
multiband one that I bought used and never tried but I like the monoband
ones better. A couple decades ago Team Vertical had very impressive contest
scores using monoband Sigma vertical arrays from Jamaica
https://www.arraysolutions.com/6y4a 

John KK9A
 

Jim Brown K9YC wrote:

N6BT (original Force 12) has done a lot designs for monoband and 
multiband verticals that are loaded dipoles. The multiband Cushcraft 
R-series and Hi-Gain AV-series multiband verticals (companies bought out 
by MFJ many years ago) are loaded dipoles.

73, Jim K9YC