Question

A TV transmitting antenna is 125 m tall. How much service area can this transmitting antenna cover, if the receiving antenna is at the ground level? Radius of earth = 6400 km.

Answer 1

h_T = 125 m and R = 6400 x 10³ m 

d = \(\sqrt{2h_TR}\) =\(\sqrt{2h_TR}\) = 40 x 10³ m = 40 km 

Area covered A = πd² = 3.14 x (40)² = 5024 km²