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FM

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Questions and Answers

What is the primary advantage of Frequency Modulation (FM) over Amplitude Modulation (AM)?

Higher carrier frequency

Easy implementation

Lower bandwidth requirements

Better noise immunity (correct)

Which of the following describes the role of a Voltage-Controlled Oscillator (VCO) in a frequency modulator?

To stabilize the output frequency

To directly generate the carrier frequency (correct)

To regulate the amplitude of the modulating signal

To filter low-frequency signals

What is the main function of a frequency demodulator?

To amplify the modulating signal

To extract the original modulating signal from an FM signal (correct)

To increase the signal's frequency deviation

To change the phase of the carrier signal

Which type of modulation can be converted into Frequency Modulation (FM)?

Phase Modulation (PM) Signup and view all the answers

Which component is NOT typically associated with a frequency modulator?

Synchronous Detector Signup and view all the answers

What is the primary function of the frequency deviation ($ abla f$) in the FM formula?

To determine how much the carrier frequency varies Signup and view all the answers

Which demodulation method is known for its stability and accuracy in extracting signals from FM?

Phase-Locked Loop (PLL) Signup and view all the answers

Which of the following statements about Phase Modulation (PM) is accurate?

PM is related to FM but modifies the phase of the carrier. Signup and view all the answers

What is the key difference between Double Sideband Full Carrier (DSB-FC) and Double Sideband Suppressed Carrier (DSB-SC)?

DSB-FC transmits both the carrier and sidebands, while DSB-SC suppresses the carrier. Signup and view all the answers

Which of the following statements accurately describes the advantages of Single-Sideband (SSB) modulation?

SSB is more efficient in terms of bandwidth and power consumption. Signup and view all the answers

What is the main function of an envelope detector in AM signal processing?

To rectify and filter the AM signal to recover the original modulation. Signup and view all the answers

Which of the following is NOT a method of generating FM signals?

Amplitude Modulation with frequency deviation. Signup and view all the answers

In the context of Frequency Modulation Systems, what role does the receiver play?

It demodulates the signal to retrieve the original information. Signup and view all the answers

What is one of the steps involved in project prototyping for FM systems?

Simulating and testing the system to optimize performance. Signup and view all the answers

Which applications commonly utilize Single-Sideband (SSB) modulation?

Long-distance communication, military, and marine communications. Signup and view all the answers

What is a typical configuration of an envelope detector?

A diode and an RC circuit for filtering. Signup and view all the answers

FM