Why frequency fogging is used in a carrier system?

Related MCQs

• Which of the following is used to vary the frequency of the carrier frequency in accordance with the baseband signal amplitude variations in direct method of FM generation?
• Non coherent detection requires the knowledge of transmitted carrier frequency and phase at the receiver.
• The upper and lower sideband frequencies for 5KHz amplitude modulation with a 30KHz carrier frequency will be?
• In indirect method, the carrier frequency is directly varied in accordance with the input modulating signal.
• What is the frequency of the stereo sub carrier signal in FM broadcasting?
• One of the advantage of using a high frequency carrier wave is that it dissipates very small power.
• Frequency demodulator is a frequency to amplitude converter circuit.
• The frequency deviation is proportional to frequency in phase modulated signal.
• If the peak message signal amplitude is half the peak amplitude of the carrier signal, the signal is            modulated.
• What do you understand by the term “carrier” in modulation?