how does marine vhf antenna work?
"Bruce in Alaska" wrote in message
...
In article ,
"Meindert Sprang" wrote:
These antennas are half-wave antennas and they don't need a
counterpoise.
Only a quarter-wave antenna needs one, to account for the other missing
quarterwave part, so to speak.
Meindert
Well, that is not actually true in most cases.
I see. My Shakespear is a 1/2 wave whip with a coil in the base.
If you actually take a
Shakespear Fiberglass VHF Antenna apart, you will find that they are
1/4 wave driven elements, with 1/4 wave of Ground Sleeve shoved up
the inside of a hollow fiberglass fishing pole and epoxed in place.
But doesn't this ground sleeve produce the "other end" of the dipole?
Meindert
|