TELECOMMUNICATIONS SYSTEMS
THE COMPONENTS OF A TELECOMMUNICATIONS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The frequency of the carrier wave is adjusted to represent the information being transmitted
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the modulating data appears in the form of signal components at frequencies slightly higher and lower than that of the carrier
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Can be used with digital data
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Can be used with analog data
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Detailed explanation-1: -Frequency Modulation (FM) is a form of modulation in which changes in the carrier wave frequency correspond directly to changes in the baseband signal. FM is considered an analog form of modulation because the baseband signal is typically an analog waveform without discrete, digital values.
Detailed explanation-2: -Frequency modulation is a technique or a process of encoding information on a particular signal (analogue or digital) by varying the carrier wave frequency in accordance with the frequency of the modulating signal.
Detailed explanation-3: -Digital data can be encoded and transmitted with a type of frequency modulation known as frequency-shift keying (FSK), in which the instantaneous frequency of the carrier is shifted among a set of frequencies. The frequencies may represent digits, such as ‘0’ and ‘1’.
Detailed explanation-4: -digital. Modulation schemes can be analog or digital. An analog scheme has an input wave that varies continuously like a sine wave.
Detailed explanation-5: -Following are the three techniques that are used in analog modulation: Amplitude modulation (AM) Frequency modulation (FM)