Radio waves If electromagnetic waves, the spectrum is the view that radio waves with frequencies in the range of Hertz waves, this range is used to send news and entertainment performances to the recipient. For the radio frequency from 530-1600 kilohoenta at radio station broadcast in am transmission system is a communication by combining sound with wave (modulate) radio waves, called wave and transmit the audio signal to the wave's force amplifier-carrier changes. Figure 18.9
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