Question

Using carson's rule, what is the required bw to transmit an fm signal if the maximum deviation is 60 khz and intelligence frequency is 15 khz?

Answer 1

Carson's Rule says:

FM occupied bandwidth =

(2) · (Peak deviation + Highest modulating frequency)

so

FM bw = (2) · (60 kHz + 15 kHz)

FM bw = (2) · (75 kHz)

FM bw = 150 kHz

(I used to eat this stuff for lunch, but it's been almost 40 years. Thanks for taking me back. Those were the good old days.)