A half-wave fed with a gamma would need no groundplane... you could build
one better than any you could purchase...

Warmest regards,
John

"Ed" wrote in message
. 92.175...

I haven't fired up EZNEC yet, but I was wondering how a standard 3dBi
marine whip would perform on the 2m ham bands. Since the marine
frequencies are 156.050-157.425 MHz, what could I expect at 144-148
MHz?

If it won't cut it, then does anyone have any recommendations for a
dual-band antenna (commercial or home-built)?

Jon


Jon,

I would expect the marine antenna to perform poorly, due to high SWR.
However, I am not sure of your second question. Are you looking for a
2M/440 antenna for a boat, or for automobile mount? A number of vendors
(Larson, Antenex, Comet?, etc.) sell dual band mobile antennas for those
two ham bands. For a boat, I don't know of any dualband stuff, but those
same vendors sell a base loaded half wave antenna for single ham bands
that doesn't require any ground plane. Good Luck.


Ed K7AAT