Here is information, maps, and programs to determine the range of our repeater, or any radio communication link.

1.  First, an area map of our repeater coverage, maximum line of sight is 12 miles, with ant at 45 feet and mobile at 5 feet.

2.  A program to determine the line of sight for a transmitter to a receiver

3.  A good essay on determining the effective communications range using all the variables.