A carrier signal C(t) = 25 sin(2.512 × 10¹⁰t) is amplitude modulated by a message signal m(t) = 5 sin(1.57 × 10⁸t) and transmitted through an antenna. What will be the bandwidth of the modulated signal?
A carrier signal C(t) = 25 sin(2.512 × 10¹⁰t) is amplitude modulated by a message signal m(t) = 5 sin(1.57 × 10⁸t) and transmitted through an antenna. What will be the bandwidth of the modulated signal?
Option 1 -
8 GHz
Option 2 -
2.01 GHz
Option 3 -
50 MHz
Option 4 -
1987.5 MHz
Asked by Shiksha User
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1 Answer
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Correct Option - 3
Detailed Solution:Frequency of message signal, f? = (1.57 * 10? ) / (2 * 3.14) = 2.5 * 10? Hz
Bandwidth = 2f? = 5 * 10? Hz = 50MHz
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