Ron, You may want to also look at the COMPROD line of antennas. They are built like a tank and survive in mountin top locations. A few repeater groups here in the Chicago area are using them. COMPROD makes 1,2, and 4 loop antennas with spacing options. You can get 1/4 3/8 and 1/2 wave spacong off the support mast.
Have a look at www.comprod.com "73" Paul W9DWP Good Luck!
