Which of the following does not cause losses in optical fibre cables?
A. Stepped index operation
B. Impurities
C. Microbending
D. Attenuation in glass
Answer: Option A
A. Stepped index operation
B. Impurities
C. Microbending
D. Attenuation in glass
Answer: Option A
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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