What is the most efficient 2-meter antenna?

Question

What is the most efficient 2 meter antenna for an amateur radio operator living in military housing on base? Nothing attached to the house, period. No antennas in the yard, no attic access. Basically, it cannot be seen from the outside. Pretty stringint rules. I am looking for the best range for my situation. Thank you in advance.

Answer 1

A good simple solution would be a 1/4 wave mag mount on a cookiesheet - it does work.  You might be suprised at how many repeaters you can hit.

I just tried the hamradiooutlet.com catalog and I couldn't find an apartment 2M antenna.  They do have mag mounts though.