Radio-Wave Propagation - The material presented in this chapter relating to freespace propagation, multipath, and the effect of the earth's curvature is adapted from an article by the author which appeared in Microwave J., Vol. 41, No. 7, July 1998, pp. 7886.

In most respects propagation of digital TV signals is identical to that of their analog counterparts. However, an important difference is the signal bandwidth; the broad continuous spectrum of digital television brings special concern for the effect of multipath on frequency response. Beyond this concern, consideration of digital TV propagation gives the author an opportunity in this chapter to review the factors that affect the terrestrial channel, compare theoretical concepts with measured data, and assess the effectiveness of various prediction methods.