engineering recuitment GATE IN Test Series 2023-24 Mock Test Communication Systems Angle Modulation Frequency Modulation
A carrier wave 20 cos (8π × 106t) is frequency modulated by a modulating signal 2 cos (2π × 103t) + cos (3π × 103t) + 5 cos (8π × 103t). If kf = 40 kHz/volt then bandwidth of the modulated signal is ________ kHz.
1
520
2
2080
3
408
4
648