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10 Questions

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Radio Communication System Principles

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Questions and Answers

What is the function of a transmitter in radio communication?

Producing radio waves for transmission (correct)

Amplifying weak audio signals

Receiving radio waves from the transmission

Converting sound waves into electrical waves

Which component converts sound waves into electrical waves in the transmitter?

Microphone (correct)

Oscillator

Audio Amplifier

Modulator

What is the main function of the audio amplifier in the transmitter?

Receiving radio waves from the transmission

Converting sound waves into electrical waves

Amplifying weak audio signals (correct)

Producing radio waves for transmission

Which stage of the transmitter enhances weak signals?

Audio Amplifier Signup and view all the answers

What is the purpose of an oscillator in a communication system?

To produce a high frequency carrier wave Signup and view all the answers

What is the role of the modulator in the communication system?

To superimpose the audio signal on the carrier wave Signup and view all the answers

Why is a crystal oscillator usually used in communication systems?

To produce a high frequency carrier wave Signup and view all the answers

What is the purpose of RF amplifier stages in a communication system?

To increase the strength level of the carrier wave Signup and view all the answers

How does the modulation process enable the transmission of sound signals over large distances?

By transmitting the sound signal at the carrier frequency Signup and view all the answers

What is the function of the transmitting antenna in a communication system?

To transmit the modulated waves or radio waves Signup and view all the answers