Question

What do you understand by the term “carrier”? [01]

a. Signal with variable frequency, phase and amplitude

b. Signal for which frequency, amplitude or phase is varied

c. Signal with high amplitude, low frequency and constant phase

d. Signal to be transmitted​

Answer 1

Answer:

Definition of carrier. 1 : one that carries : bearer, messenger. 2a : an individual or organization engaged in transporting passengers or goods for hire. b : a transportation line carrying mail between post offices.

Answer 2

Carrier is the signal for which frequency, amplitude, or phase is varied. (Option B)

• In modulation, the carrier wave is a resultant wave.
• A Carrier wave is a wave with a higher frequency than the message signal, and its parameters such as amplitude, phase, or frequency vary to the message signal's amplitude.
• To communicate information, a carrier wave is modulated in terms of amplitude, frequency, or phase concerning an input signal.
• The carrier wave has a greater frequency than the input signal.
• As a result, we define a carrier as a signal or a waveform whose frequency, amplitude, or phase is variable.
• Option B is the right answer.