One example of using the ray model is the consideration of line-of-sight communication. If radio waves travel away from a transmitting location on Earth, their maximum distance of direct propagation ...One example of using the ray model is the consideration of line-of-sight communication. If radio waves travel away from a transmitting location on Earth, their maximum distance of direct propagation can be limited by the curvature of the Earth. Through geometry, it is possible to determine this maximum range.
