On Aug 8, 8:04*am, "DMD" wrote:
Go there and you'll found the "real" of explanation about this antenna
model.
www.kg4jjh.com/sigma.html
http://www.n6bt.com/n6bt-AAOL-3rd-Ed...1c-201-205.pdf
That's totally different than what I had in mind.
That is just a loaded vertical dipole with capacity hats on
each end. And looks to be center fed, not base fed.