Landshark wrote:
Guarantee that a Geo Metro is more than 9' Sqr of metal.

Yes, you're probably right... but the question is do you really need
more area than that. The answer is "it depends". It depends on what
type of radiation pattern you're looking for. The bigger the plane
underneath the antenna... the lower the angle of radiation. The 3'X3'
piece will work... but may not give as low a radiation angle as a
larger surface.

www.telstar-electronics.com