Maximum frequency deviation and modulating frequency in commercial FM broadcasting

Q.  What is the maximum modulating frequency allowed in commercial FM broadcastings?
- Published on 14 Oct 15

a. 40 KHz
b. 75 KHz
c. 15 KHz
d. 120 KHz

ANSWER: 15 KHz
 
Commercial FM broadcasting uses a maximum modulating frequency of 15 KHz

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