Abstract

The problems of signals with electric waves have been in the foreground of applied physics since the beginning of the century. This chapter explores the propagation of radio waves in detail. It also discusses the questions of propagation in the homogeneous atmosphere and in the earth, which is also assumed to be homogeneous. The chapter deals only with the phenomenological Maxwell theory, and hence uses the system of the four units—M (meter), K (kilogram mass), S (second), and Q (charge, measured in Coulombs). The chapter discusses the errors in range finding for an electrical horizontal antenna. Range finding means finding the location of that direction from which a signal reaches the receiver. The chapter further discusses the magnetic antenna and its propagation of radio waves. The chapter also focuses on the radio waves on the spherical earth and illustrates radiation energy and absorption by earth.

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