PHYSICAL LAYER AND TRANSMISSION MEDIA
DATA AND SIGNALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A process of sending data over a signal by varying either its amplitude, frequency, or phase.
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Amplification
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Attenuation
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Decibel
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Modulation
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Explanation:
Detailed explanation-1: -Amplitude modulation is a process by which the wave signal is transmitted by modulating the amplitude of the signal. It is often called AM and is commonly used in transmitting a piece of information through a radio carrier wave.
Detailed explanation-2: -Modulation is defined as the process of superimposing a low-frequency signal on a high-frequency carrier signal. The process of varying the RF carrier wave in accordance with the information in a low-frequency signal.
Detailed explanation-3: -Phase modulation (PM) is a modulation pattern for conditioning communication signals for transmission. It encodes a message signal as variations in the instantaneous phase of a carrier wave.
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