A carrier wave is modulated with 4 amplitudes and 4 phase changes.How many possible signal combinations are there?
A)4
B)8
C)16
D)32
E)64

Name: A carrier wave is modulated with 4 amplitudes and 4 phase changes.How many possible signal combinations are there? A)4 B)8 C)16 D)32 E)64
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Question

Quizplus · Accepted Answer

To calculate the possible signal combinations, we multiply the number of amplitudes by the number of phase changes: 
4 amplitudes x 4 phase changes = 16 possible signal combinations. Therefore, the correct answer is C) 16.

A Carrier Wave Is Modulated with 4 Amplitudes and 4