Introduction to Satellite Communication » Exercise - 273. Which of the following system is digital : (a) Pulse Position Modulation (b) Pulse Code Modulation (c) Pulse Width Modulation (d) Pulse Frequency Modulation
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
Introduction to Satellite Communication » Exercise - 262. De-emphasis circuit is used : (a) After Modulation (b) Prior to Modulation (c) To De-emphasis low frequency components (d) To De-emphasis high frequency components
Introduction to Satellite Communication » Exercise - 122. For satellite communication the frequency should ….. the critical frequency of ionosphere. (a) Equal to (b) Less than (c) More than (d) None of the above