"gareth" wrote in message ...
Forgiving their ignorant use of the wrong plural, "antennas", this is a
brilliant site, at first sight ...
http://antenna-theory.com/
In particular, the following sub-page may teach the Yank rednecks
who abuse this NG a thing or two ...
http://www.antenna-theory.com/antennas/shortdipole.php
Good references, but I see nothing new in the second reference with regard
to short dipoles.
If you can get 100 watts into a one foot long HF dipole, it will be just as
efficient as a half wave dipole that also has 100 watts into it.