Digital Communications
Digital Communications
Solved Example: 9164-01
The bit rate of the digital communication system is M kbps. The modulation used is 16 QAM. The minimum bandwidth required for ideal transmission is: (DFCCIL Executive S and T 2018)
A. M/2 kHz
B. M/16 kHz
C. M kHz
D. M/8 kHz
Correct Answer: A
Solved Example: 9164-02
In digital transmission, the modulation technique that requires the minimum bandwidth is: (LMRC Assistant Manager (S and T) May 2018)
A. PCM
B. PAM
C. DPCM
D. Delta modulation
Correct Answer: D