Discussion
Statement I: Time division multiplexing requires good linearity in the transmission path.
Statement II: Frequency division multiplexing requires good linearity in the transmission path.
In the light of the above statements, choose the correct answer.
Answer: A
The second is true and the first is not: time division keeps only one channel present at any instant, so non-linearity has nothing to mix, whereas frequency division has every channel coexisting and intermodulation puts them into one another. Time division's own demand is on timing accuracy instead. Whether channels coexist or take turns is what decides which kind of imperfection a system can tolerate.
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