At 02:21 PM 3/25/2005, Bill Stewart wrote: especially if you've got to do a DNS lookup or two.
Directional Antennas are unlikely to be useful - if you've got them aimed right, you might win, but you're much more likely to miss entirely or have only a few meters that you're in range.
Horizontally directional perhaps not but vertically is a possibility. By this I mean an omni antenna with gain, like a stacked dipole. What this means is antenna with gain in all compass points but with a flat 'pancake' vertical profile. In many driving situations the hot spot is likely to be within 10 degrees of horizontal. They are commonly used in commercial TV and radio broadcast. I think its possible to get 6 or more db gain this way with a small antenna. 6 db effectively doubles your range. Steve