Topic: Electronics Engineering
An audio frequency of 15 KHz is frequency modulated with a deviation of 75 KHz. The resulting bandwidth is
- A. 180 KHz
- B. 150 KHz
- C. 210 KHz
- D. 240 KHz
Answer: A. 180 KHz
Explanation: $\beta=\frac{\Delta f}{f_{m}}=\frac{75}{15}=5$
$B.W.=2(\beta+1)f_{m} = 2(5+1)15~kHz = 180~kHz$