Lets see!? The vessels that I have worked on have had Long wire and whip antennas. But they still needed the antenna coupler/tuner for the SSB to work properly. I found that the long wire can be directional, especially if you are in the Bering Sea and trying to get the High Seas Operator at Pt Reyes Calif. The whip antenna wasn't quite so directional. But still the position it had on the pilot house top played into the directionality often. But wasn't as bad as the long wire.
Haven't worked with the back stay antenna yet. But am sure that it will have its own foibles with directionality also.
So far I prefer the whip antenna. But where to plant it on a sailboat is another question. (off a mast spreader?)
No antenna that I have worked with is truely omni-directional. Placement always plays into this.
Last edited by Boasun; 03-19-2008 at 12:08 PM.