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An unwanted signal that enters the transmitted signal which cannot be controlled is called as:

An unwanted signal that enters the transmitted signal which cannot be controlled is called as: Correct Answer Noise Signal

Explanation:

In any communication system, during the transmission of the signal, or while receiving the signal, some unwanted signal gets introduced into the communication, making it unpleasant for the receiver, questioning the quality of the communication. Such a disturbance is called Noise.

What is Noise?

Noise is an unwanted signal which interferes with the original message signal and corrupts the parameters of the message signal. This alteration in the communication process leads to the message getting altered. It is most likely to be entered at the channel or the receiver.

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Hence, it is understood that noise is some signal which has no pattern and no constant frequency or amplitude. It is quite random and unpredictable. Measures are usually taken to reduce it, though it can’t be completely eliminated.

The most common examples of noise are −

  • Hiss sound in radio receivers

  • Buzz sound amidst of telephone conversations

  • Flicker in television receivers, etc.

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