In rec.radio.amateur.antenna Spike wrote:

Imagine a short rod vertical aerial not connected to ground, for the
(say) 160/80/60/40m bands, as might be found in a typical /M set-up, fed
with RF energy and operating over ground of average conductivity.

Three different waves will be launched from this:

Nope; An antenna, any antenna, has a radiation pattern which is a
representation of the amount of energy radiated in any particular direction.

See this:

http://www.antenna-theory.com/basics/radPattern.html

The first pattern shown is typical for a vertical antenna.

There are no "waves" in the sense you are using the word.

--
Jim Pennino