Question

In an FM system a 7 kHz signal modulates 108 MHz carrier so that frequency deviation is 50 kHz. The carrier swing is

• A. 7.143
• B. 8
• C. 0.71
• D. 350

Answer 1

Answer: (A)

7.143

Answer 2

Carrier swing $= \frac{\text{Frequency deviation}}{\text{Modulating frequency}} = \frac{50}{7} = 7.143$