On Thu, 20 Mar 2008 05:44:50 GMT, "usmcbrat"
wrote:

My needs are this.... the antenna must be as directional as possible. It
must be most efficient in the 215 to 218 MHz band 215 is what our patients
are on right now, though after we fill up that range we have licensed
through 218 MHz. It must be easy for an individual to carry, and portable
enough to carry through any type of terrain. It must be shaped in such a
way that it's relatively safe and easy to use in an enclosed area, either in
a helicopter or a car. Currently the agency is using a 4 element Yagi,
which works well, but has the drawback of being a real eye-poker when used
in close quarters, and in fact the California Highway Patrol will not allow
them to be used in their helicopters because of that reason.

Hi USMCbrat,

Research the Google newsgroups (for this newsgroup specifically)
archive with the keyword "foxhunt." There are more issues than just
directionality to be considered.

ARMYbrat Richard Clark, KB7QHC