Introduction to Satellite Communication » Exercise - 117. Type of modulation used in direct broadcast satellite : (a) Frequency modulation (b) Amplitude modulation (c) Pulse code modulation (d) None of these
Introduction to Satellite Communication » Exercise - 270. Pre-Emphasis is used to amplify : (a) Low Frequency (b) High Frequency (c) Both a and b (d) None of these
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
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