Deck 13: More on Modulation

Question 1

In QAM,if you have eight possible amplitudes,how many bits can you send per clock cycle?

A)3.
B)6.
C)8.
D)16.
E)None of the above.

Answer 1

B

Question 2

QPSK represents ________ bits per clock cycle.

A)1
B)2
C)4
D)16

Answer 2

B

Question 3

Phase modulation uses two loudness levels.

Answer 3

False

Question 4

In QAM,if you have four possible amplitudes,you have ________ possible states.

A)4
B)8
C)16
D)None of the above.

Question 5

QAM uses ________.

A)amplitude modulation
B)phase modulation
C)Both A and B
D)Neither A nor B

Question 6

In QAM,if you have eight possible amplitudes,you have ________ possible states.

A)4
B)8
C)16
D)64
E)None of the above.

Question 7

Frequency modulation uses two loudness levels.