RADIO WAVES

RADIO WAVES An energy wave generated by a transmitter is called a RADIO WAVE. The radio wave radiated into space by the transmitting antenna is a very complex form of energy containing both electric and magnetic fields. Because of this combination of fields, radio waves are also referred to as ELECTROMAGNETIC RADIATION. This discussion will explain the Earth’s atmosphere and its effect on radio waves. All the principles of wave motion that were discussed in chapter 1 also apply to radio waves. NOTE: The term radio wave is not limited to communications equipment alone. The term applies to all equipment that generate signals in the form of electromagnetic energy. COMPONENTS OF RADIO WAVES The basic shape of the wave generated by a transmitter is that of a sine wave. The wave radiated out into space, however, may or may not retain the characteristics of the sine wave.

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