Which one of the following statements is correct?
A. AGC in radio receivers will keep the total signal output fairly constant but the noise component will be reduced; with the result the S/N ratio will improve
B. AGC in radio receivers is a linear operation w.r.t. both signals and noise
C. Sudden changes in the output while tuning, which may cause damage to the components, is an unavoidable feature of AGC
D. AGC operation is independent of the filter components used in AGC circuit
Answer: Option C
This Question Belongs to Electronics And Communications Engineering >> Communication Systems
It is found that a ship to ship communication suffers from fading. This can be avoided by using
A. Space diversity
B. Frequency diversity
C. Broad band antenna
D. Directional antenna
A. A double-tuned amplifier
B. A high gain D.C. amplifier
C. A cathode follower stage
D. None of the above
A. Filter method
B. Phase cancellation method
C. Good attenuation characteristics
D. All of the above
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