AM is used for broadcasting because
A. it is more noise immune than other modulation systems.
B. it requires less transmitting power compared with other systems.
C. its use avoids receiver complexity.
D. no other modulation system can provide the necessary band width faithful transmission.
Answer:C
AM is used for broadcasting because
A. it is more noise immune than other modulation systems. B. it requires less transmitting power compared with other systems. C. its use avoids receiver complexity. D. no other modulation system can provide the necessary band width faithful transmission.