CHAPTER 4
Radio Frequency Waves
This chapter describes some of the scientific principles of radio waves that are fundamental to all types of broadcasting transmission.
Electromagnetic Waves
It is fairly easy to understand that sound waves can be carried through the air, just as waves move on the sea. Although more difficult to explain, as mentioned earlier, light can also be considered as an electromagnetic wave. In simple terms, electromagnetic waves are vibrations of electrical and magnetic energy that can travel long distances, even through the vacuum of space or, to a variable extent, through other materials. They are the foundation of broadcasting.
Types of Waves
Electromagnetic waves have a range of frequencies, most of them far higher ...
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