Amplitude Modulation » Exercise - 19. For a given carrier wave maximum undistorted power is transmitted when value of modulation is : (a) 0 (b) 0.5 (c) 0.8 (d) 1.0
Amplitude Modulation » Exercise - 1 11. In an AM transmitter after the modulation stage class C amplifier : (a) Can be used (b) Can not be used (c) Either of the above (d) Both a and b
Amplitude Modulation » Exercise - 13. The percentage of modulation for 45 kHz deviation the FM broadcast band will be - (a) 30% (b) 40% (c) 60% (d) 90%
Angle Modulation » Exercise - 19. In phase modulated signal, the frequency deviation proportional to : (a) Frequency only (b) Amplitude only (c) Both a and b (d) None of the above
Introduction to Satellite Communication » Exercise - 279. A carrier is amplitude modulated by two sine waves of different frequencies upto 40% and 60%. The resulting overall modulation index is : (a) 1 (b) 0.72 (c) 0.4 (d) 0.6