How do radio waves travel to the opposite side of the planet? How do they overcome the curvature of the earth?

Question

Does the signal simply pass through multiple radio towers?

In: Technology

Answer 1

Radio can bounce off the atmosphere, and that is a thing that gets done, especially for shortwave radio, but largely you got it right, the curvature of the earth is the general limit for how far a radio signal can go on earth. Things mostly do need repeaters on the ground or to go up to a satellite then back down to go farther.