#### Problem Statement: Principles of Communications

**Frequency Modulation Problem Solving**

What is the frequency deviation and carrier swing necessary to provide 75% modulation in the FM broadcast band?

A. 84.375 kHz, 112.5 kHz

B. 56.25 kHz, 112.5 kHz

C. 112.5 kHz, 225 kHz

D. 56.25 kHz, 84.375 kHz

#### Problem Answer:

The frequency deviation is equal to **56.25 kHz** and the carrier swing necessary is equal to **112.5 kHz**.

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