railway RRB JE (CBT I + CBT II) Mock Test 2024 Communication Systems Angle Modulation Frequency Modulation
In an FM system, 10.8 MHz carrier is modulated by signal with bandwidth 5 kHz. The signal is passed through non-linear function with y(t) = [x(t)]3, the output carrier frequency may be
1
3.6 MHz
2
15.8 MHz
3
32.4 MHz
4
54 MHz