Frequency Modulation Signals and Circuits

In Chapter 10, we explored some of the different types of amplitude-modulated (AM) signals such as amplitude modulation with carrier, suppressed carrier, and single sideband. The modulating signal such as a voice or music signal varied the amplitude of the carrier in standard AM, or it varied the amplitude of the sideband(s) of the suppressed carrier AM signal. Frequency-modulated (FM) signals do not vary the amplitude of the carrier signal. Instead, the actual frequency of the carrier changes according to the modulation signal. This chapter will look at broadcast FM signals and circuits for ...

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