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Q. |
Which of the following is not a linear modulation technique? |
A. | oqpsk |
B. | π/4 qpsk |
C. | fsk |
D. | bpsk |
Answer» C. fsk | |
Explanation: oqpsk, π/4 qpsk and bpsk are the most popular linear modulation techniques. they have very good spectral efficiency. however, fsk is an non-linear modulation technique. |
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