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Armstrong FM transmitter performs frequency multiplication in stages—
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- to increase the overall S/N ratio
- to reduce bandwidth
- to find the desired value of carrier frequency as well as frequency deviation
- for convenience
Correct Option: C
Since the desired multiplication factors or carrier frequency and frequency deviation are not the same. So if the multiplication is done in one shot, the carrier frequency as well as the frequency deviation is multiplied by the same factor which is not desired. Hence, multiplication is done in stages.
