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Q.

In ________, the amplitude of the carrier signal is varied to create signal elements. Both frequency and phase remain constant.

A

ASK

B

PSK

C

FSK

D

QAM

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MCQ

1.

There are three sampling methods: __________

A

quantized, sampled, and ideal

B

ideal, sampled, and flat-top

C

ideal, natural, and flat-top

D

none of the above

Discussion

MCQ

2.

________ uses two carriers, one in-phase and the other quadrature

A

ASK

B

PSK

C

FSK

D

QAM

Discussion

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3.

In decoding a digital signal, the receiver calculates a running average of the received signal power, called the _______

A

baseline

B

base

C

line

D

none of the above

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4.

. Two common scrambling techniques are ________

A

NRZ and RZ

B

AMI and NRZ

C

B8ZS and HDB3

D

Manchester and differential Manchester

Discussion

MCQ

5.

In ________, the phase of the carrier is varied to represent two or more different signal elements. Both peak amplitude and frequency remain constant.

A

ASK

B

PSK

C

FSK

D

QAM

Discussion

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