Analog Modulation in Communications Quiz

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What type of modulation does not change a sinusoidal signal?

Pulse Modulation (correct)

Continuous Wave Modulation

Double-Sideband, Large Carrier (AM/DSB-LC)

Analog Modulation

Which characteristic(s) of the carrier wave are changed in Analog Modulation?

Amplitude only

Frequency only

Amplitude, frequency, or phase (correct)

Phase only

Which of the following is NOT a type of Continuous Wave Modulation?

AM

PAM (correct)

FM

PM

In Double-Sideband, Large Carrier (AM/DSB-LC) modulation, which characteristic(s) of the carrier signal change?

Amplitude only Signup and view all the answers

What is the purpose of modulation in communication systems?

To increase the efficiency of radiation Signup and view all the answers

Which of the following is NOT a type of Analog Modulation?

Pulse Amplitude Modulation (PAM) Signup and view all the answers

What is the definition of the modulation index?

The ratio of the amplitude of the message signal to the amplitude of the carrier signal Signup and view all the answers

Which of the following is another name for the modulating signal?

Baseband signal Signup and view all the answers

Which of the following is not a type of single-sideband modulation?

Vestigial-sideband (AM/VSB) Signup and view all the answers

What is the primary purpose of modulation in communication systems?

To reduce noise and interference Signup and view all the answers

Which of the following best represents the envelope of the modulated carrier in Amplitude Modulation (AM)?

A(t) Signup and view all the answers

What does AM/DSB-SC stand for?

Amplitude Modulation with Double-Sideband and Suppressed Carrier Signup and view all the answers

Analog Modulation in Communications Quiz

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Questions and Answers

What type of modulation does not change a sinusoidal signal?

Which characteristic(s) of the carrier wave are changed in Analog Modulation?

Which of the following is NOT a type of Continuous Wave Modulation?

In Double-Sideband, Large Carrier (AM/DSB-LC) modulation, which characteristic(s) of the carrier signal change?

What is the purpose of modulation in communication systems?

Which of the following is NOT a type of Analog Modulation?

What is the definition of the modulation index?

Which of the following is another name for the modulating signal?

Which of the following is not a type of single-sideband modulation?

What is the primary purpose of modulation in communication systems?

Which of the following best represents the envelope of the modulated carrier in Amplitude Modulation (AM)?

What does AM/DSB-SC stand for?

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