Question 1 : In double side band spectrum which side-band is called as inverted side-band?
1. LSB
2. USB
3. LSB & USB
4. None of the mentioned
View Answer   Discuss with Members

Question 2 : Which modulation has lower side lobe levels?
1. QPSK
2. OQPSK
3. BPSK
4. MSK
View Answer   Discuss with Members

Question 3 : The orbital period of communication satellites is _______ as that of earth's rotational period.
1. Same
2. Greater
3. Lesser
4. None of the mentioned
View Answer   Discuss with Members

Question 4 : Which modulation scheme uses nonlinear transponders?
1. MSK
2. Offset QPSK
3. MSK & Offset QPSK
4. None of the mentioned
View Answer   Discuss with Members

Question 5 : Flat top sampling of low pass signals
1. Gives rise to aperture effect
2. Implies over sampling
3. Leads to aliasing
4. Introduces delay distortion
View Answer   Discuss with Members

Question 6 : In TCM the signals are decoded using
1. Soft decision decoders
2. Hard decision decoders
3. Soft & Hard decision decoders
4. None of the mentioned
View Answer   Discuss with Members

Question 7 : Choosing a closely packed signal subset from any regular lattice or array of candidate points is called as
1. Optimum signal constellation boundaries
2. Higher density lattice structures
3. Trellis coded modulation
4. None of the mentioned
View Answer   Discuss with Members

Question 8 : Modulation process includes
1. Analog to digital conversion
2. Digital to analog conversion
3. All of the mentioned
4. None of the mentioned
View Answer   Discuss with Members

Question 9 : In polarization division technique ______ polarization is used.
1. Orthogonal
2. Non orthogonal
3. Orthogonal & Non orthogonal
4. None of the mentioned
View Answer   Discuss with Members

Question 10 : TDM is less immune to cross-talk in channel than FDM.
1. True
2. False
3.
4.
View Answer   Discuss with Members