Richard Fry wrote:
"Cecil Moore"
The Zepp antenna is a 1/2WL monopole with no counterpoise.

Here are some comments by W8JI about the need for some kind of r-f
ground or counterpoise on Zepps and other end-fed ham antennas.

Nobody said the Zepp antenna is free of common-
mode currents. The wire connected to the antenna
obviously carries current while the floating wire
just as obviously carries no current at the open
end. Radiation from the series stub just didn't
matter with the Zeppelin airships.
--
73, Cecil http://www.w5dxp.com