54. Study the waveform above. What part of this wave is audio? a. A is the envel

Question

54. Study the waveform above. What part of this wave is audio? a. A is the envelope and represents the audio portion of the wave. b. B is the audio portion of the wave. 55. What does AM stand for? a. amplitude modulation b. analog-frequency modulation c. analog modification d. analog microfiltration e. amplifier mixer What is the purpose and benefit of modulating the carrier wave in AM broadcasting? 56. a. It makes the audio signal stronger when received on an antenna. b. c. d. e. It allows the audio to travel as an electromagnetic wave. It allows the audio to travel at the speed of light. It allows the audio to travel at the speed of sound. Both B and C

Explanation / Answer

ANSWER:

(54) Correct Answer is b, as the envelope of the modulated signal is equivalent to the baseband signal.

(55) Correct Answer is a, as the amplitude of the of the carrier wave is varied in proportion to that of the message signal being transmitted.

(56) Correct Answer is a, as AM produces good sound quality obtained at the receiver.

For any queries, leave a comment. And a thumbs up is always appreciated. Thanks !

Related Questions

Navigate

• Browse (All)
• Browse 5
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.