COMPUTER NETWORKS AND COMMUNICATIONS
WIRELESS COMMUNICATION TECHNOLOGIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The signal strength ____ as the distance between the transmitter and receiver increases. (CO1)(B2)
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increases
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remains same
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decreases
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becomes zero
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Explanation:
Detailed explanation-1: -Besides the signal’s proximity to other cables or frequencies, the physical surroundings of a signal can also hamper its strength. Temperature, walls or other barriers, and wire insulation can all affect signal strength.
Detailed explanation-2: -The higher the frequency, the faster the signal energy decreases with increasing distance to the source.
Detailed explanation-3: -When it is necessary to transmit signals over long distances via cable, repeaters can be inserted along the length of the cable. Repeaters boost the signal strength to overcome attenuation. This greatly increases the maximum attainable range of communication.
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