Question

AM is used for broadcasting because

• A. it requires less transmitting power compared with other systems
• B. it is more noise immune than other modulation systems
• C. its use avoids receiver complexity
• D. no other modulation system can provide the necessary bandwidth faithful transmission

Answer 1

Answer: (C)

AM is used for broadcasting because its use avoids receiver complexity. Only a diode and a capacitor are sufficient to separate the audio signal from the AM wave.