How far will a 900 Mhz signal go?

Question

How do you calculate the capable distance between to radio sites? I have one Master Radio at 220 feet antenna height and transmitting at 37db, and I want to know if it will be able to communicate with a Remote station at 25 feet high, also 37db. The distance is about 7 miles between the two sites. Without testing first, should these technically be able to communicate with each other?

Answer 1

 my dog isnt even dead