I own a radio station in Victoria, Texas--KTXN-FM 98.7/////The answer to your question is:
distance (miles) = square root of height transmitter in feet times 1.23 how far one can cee..
distance (miles) = square root of height of transmitter in feet and square root of square root of receiver times 1.23
To find radio horizon substitute 1.41 in each of above equations.
Joe Tibiletti, 2618 FM 1685, Victoria, Texas, 77905...
joetib@suddenlink.net, or joetibiletti@yahoo.com