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Which of the following is NOT the advantage of frequency modulation ?

Which of the following is NOT the advantage of frequency modulation ? Correct Answer More convenient receiver and transmitter

Concept:

Modulation: The process of varying some characteristics such as amplitude, frequency, or phase of a carrier signal is varied in accordance with the instantaneous value of the low-frequency audio signal(or modulating signal) is known as Modulation. In other words, in modulation, we use a high-frequency carrier wave to carry audio signals(message) to large distances. Audio signals have low frequencies with a bandwidth of about 20 kHz only. Such low signals cannot be transmitted directly to large distances. That is why we need modulation of these audio signals.

Frequency Modulation: The process of changing the frequency of a message signal in accordance with the amplitude of a modulating signal voltage is known as  Frequency modulation. The frequency of modulated signal increases as the amplitude of modulating signal increases and decreases as the amplitude of modulating signal decreases. Some other features of Frequency modulation are-

  • The amplitude of the message signal does not change in FM.
  • The amount of frequency deviation is proportional to the amplitude of instantaneous value of modulating signal.
  • FM transmission is highly efficient.

 Additional Information

Frequency Deviation: The amount by which the frequency of carrier signal shifts above or below the resting frequency fc is called the frequency deviation.

Related Questions

Consider the following statements regarding modulation : 1. The communication systems, where a weak signal is transmitted by the use of a modulation is essential in carrier signal. 2. When the frequency of the high frequency signal is varied in accordance with the intensity of the low-frequency weak signal, the modulation is said to be frequency modulation. 3. The process of recovering original baseband signal from the modulated signal is called phase modulation. Which of the above statements are correct ? 
Consider the following types of modulation: 1. Amplitude modulation 2. Frequency modulation 3. Phase modulation 4. Pulse modulation Which of the above modulation are used for telecasting TV programs?
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