A signal m(t) = 10cos 2π100t is frequency modulated. The resulting FM signal is x(t) = 20cos{2π106t + 15sin(2π100t)}. The FM bandwidth is nearly
A. 3.2 kHz
B. 9.6 kHz
C. 32 kHz
D. 100 kHz
Answer: Option A
A. 3.2 kHz
B. 9.6 kHz
C. 32 kHz
D. 100 kHz
Answer: Option A
It is found that a ship to ship communication suffers from fading. This can be avoided by using
A. Space diversity
B. Frequency diversity
C. Broad band antenna
D. Directional antenna
A. A double-tuned amplifier
B. A high gain D.C. amplifier
C. A cathode follower stage
D. None of the above
A. Filter method
B. Phase cancellation method
C. Good attenuation characteristics
D. All of the above
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