Double Sideband Suppressed Carrier Modulation (DSBSC) on Analog Communications related Questions and Answers

Question :   Which among the following is the drawback of Pulse Position Modulation (PPM)? 1. Synchronization is required between receiver and transmitter 2. Synchronization is not required between receiver and transmitter 3. Amplitude is constant 4. Instantaneous power of PPM modulated signals is constant Answer :   1 - Synchronization is required between receiver and transmitter