I'm not saying I "disagree" - though I've never fully gotten into the design
basics/performance, but "I" didn't "design" them - I only sell them! The
last customer who bought a discone from me was very pleased with it - for
whatever that is worth. I have the previous version of the ground plane I
now handle, it didn't cover past 400 MHz, but it seemed to work well. I was
just answering a need of sorts. Trying to be helpful. CL

"Volker Tonn" wrote in message
...


CL schrieb:

Have 2 types available. A Discone and a Ground Plane. Both good for 25 -
1000 MHz.

On technical reason a ground plane antenna can NEVER work as a broadband
antenna. It is limited to some frequencies or relatively small frequency
ranges with acceptable gain.

A discone has some gain above 0dBi on the wohle specified range up to 2
dBi. A groundplane has some gain up to 3 or 4 dBi on resonant
frequencies and dramatic loss down to -(!)15dBi on nonresonant ranges.

odo