Dwight Stewart schrieb:

... Few antennas can beat the utter bandwidth of
a discone and the ground plane is ideal where an even less intrusive antenna
is desired.


Giving a specification(!) on a groundplane from 25-100Mhz is taking a
customer for a ride. An antenna specified(!) for a frequency *range*
implies at least that it has gain over an isotropic radiator wich is
simply not true for a groundplane "25-1000Mhz".
It would be a different thing in konjunktion with some active elctronics
-wich is not the case-.
And yes, you can have very much success on a simple antenna design. A
CB-whip with top loading coil (in europe known as DV27S -length of
1.4mtr-) is known to be a good performer on _some_ "interesting"
frequency ranges. It works on the same principle like the mentioned
groundplane when installed on a metal sheet ...at a fraction of cost
(less than 10EUR/ 13US$).

Volker