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Mastering the Basic Communication Model

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Questions and Answers

Which component of the communication model is responsible for transforming the source signal to make it suitable for the transmission channel?

Source

Receiver

Sink

Modulator (correct)

What is the role of the transmitter in the communication model?

Receive the signal on the channel

Amplify the received signal

Introduce the modulated signal into the channel (correct)

Transform the source signal

What is the purpose of the demodulator in the communication model?

Receive the signal on the channel

Recover the original source signal from the received signal (correct)

Transform the source signal

Amplify the received signal

What is the transmission channel in the communication model?

Physical link between the communicating parties (B) Signup and view all the answers

What type of communication system can send information in one direction only?

Simplex System (B) Signup and view all the answers

Which one of the following is NOT a component of the basic communication model?

Transmitter (B) Signup and view all the answers

Which component of the communication model transforms the source signal to make it suitable for the transmission channel?

Modulator (B) Signup and view all the answers

What is the function of the demodulator in the communication model?

Transforms the source signal (B) Signup and view all the answers

Which type of communication system is capable of sending information in one direction only?

Simplex System (A) Signup and view all the answers

What is the purpose of the transmitter in the communication model?

Introduce the modulated signal into the channel (C) Signup and view all the answers

Which unit of measurement is used to express the power ratios between two signals in the electronic communication field?

Decibel (dB) (A) Signup and view all the answers

What is the length that one cycle of an electromagnetic wave occupies in space called?

Wavelength (D) Signup and view all the answers

What is the purpose of dividing the radio frequency band into narrower bands?

To accommodate different types of signals (A) Signup and view all the answers

What is the relationship between decibel (dB) and bel (B)?

1 bel = 0.1 decibel (D) Signup and view all the answers

What is the main purpose of converting information into electromagnetic energy in the communication process?

To enable long-distance communication (C) Signup and view all the answers