Bandwidth of DSB signal - Calculation

Calculate the bandwidth occupied by a DSB signal when the modulating frequency lies in the range from 100 Hz to 10KHz.


a.) 28 KHz
b.) 24.5 KHz
c.) 38.6 KHz
d.) 19.8 KHz

Correct Answer: d) 19.8 KHz

Explanation:

Here the fm = 100Hz to 10 KHz = 10000-100=9900 Hz

Therefore, Bandwidth = 2 fm = 2* 9900
= 19.8KHz
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