Hi Jon:

I see a number of people have replied to this posting, but I think they may
have missed the main point of your question.

The only thing I'm not clear on is are you planning to use the marine
antenna for both ham and marine radios? Or will it only be used for the ham
radio?

Also, is the antenna a metal whip or a fiberglass whip?

If the antenna is a metal whip with a loading coil, then it should be easy
to clip the end off of the tip of the metal rod to tune it to the higher
frequency. (higher frequency = shorter antenna). If your antenna is
fiberglass, then I guess that you would be out of luck.

If you are planning on using one antenna for both radios and switching back
and forth, then I would decide which is the most important radio and tune
for it, OR tune it half way between for a comprimise on both radios. Keep in
mind that you will have to use a switch box or disconnect and reconnect the
radios as needed.

The simple thing to do would be have two antennas - one for each radio, and
tune appropriately.

Good luck.


"Jon Gauthier" wrote in message
...
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