Question 11 : Scintillation describes the fading caused by
1. Atmospheric changes
2. Physical changes
3. Thermal noise
4. Propagating effects
View Answer   Discuss with Members

Question 12 : The ISI and adjacent channel interference is removed by
1. Cancelling filter
2. Port processing equalizer
3. Cancelling filter & Port processing equalizer
4. None of the mentioned
View Answer   Discuss with Members

Question 13 : Diversity technique is applied at
1. Base station
2. Mobile receiver
3. Base station & Mobile receiver
4. None of the mentioned
View Answer   Discuss with Members

Question 14 : How can frequency selective distortion be minimized?
1. By using pilot signal
2. By adaptive equalization
3. By spread spectrum
4. All of the mentioned
View Answer   Discuss with Members

Question 15 : When channel coherence bandwidth is greater than the transmitted signal bandwidth ______ occurs.
1. Time selective
2. Frequency selective
3. Frequency non selective
4. None of the mentioned
View Answer   Discuss with Members

Question 16 : If delay time is greater than symbol time, _______ fading occurs.
1. Frequency selective
2. Time selective
3. Frequency non selective
4. None of the mentioned
View Answer   Discuss with Members

Question 17 : The inter-leaver is more effective if the vehicle is
1. Fast
2. Slow
3. Fast & Slow
4. None of the mentioned
View Answer   Discuss with Members

Question 18 : Diversity technique
1. Provides significant link improvement
2. Needs training overhead
3. All of the mentioned
4. None of the mentioned
View Answer   Discuss with Members

Question 19 : Diversity technique is used for combating
1. Fading
2. Error bursts
3. Co-channel interference
4. All of the mentioned
View Answer   Discuss with Members

Question 20 : The decision feedback equalizer has a linear traversal filter which is
1. Feed forward section
2. Feedback section
3. Feed forward section & Feedback section
4. None of the mentioned
View Answer   Discuss with Members