June 12, 2021

Mobile Radio Propagation MCQ’s

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This set of Digital Communications Systems Multiple Choice Questions & Answers (MCQs) focuses on “Mobile Radio Propagation”.

1. The received power is attenuated by a factor called
a) Path loss
b) Free space loss
c) Path & Free space loss
d) None of the mentioned

2. Large scale fading refers the attenuation in
a) Amplitude
b) Phase
c) Signal power
d) None of the mentioned

3. Small scale fading occurs due to
a) Doppler shift
b) Time delay
c) Doppler shift & Time delay
d) None of the mentioned

4. Small scale fading manifests due to
a) Signal dispersion
b) Time variant behavior
c) Signal dispersion & Time variant behavior
d) None of the mentioned

5. Scintillation describes the fading caused by
a) Atmospheric changes
b) Physical changes
c) Thermal noise
d) Propagating effects

6. The parameters used to describe large scale fading are
a) Reference distance
b) Path loss exponent
c) Standard deviation of random variable
d) All of the mentioned

7. What is the source for performance degradation?
a) Thermal noise
b) Man made noise
c) Natural noise
d) All of the mentioned

8. What are the types of small scale fading that occurs due to Doppler shift?
a) Slow fading
b) Fast fading
c) Slow & Fast fading
d) None of the mentioned

9. Small scale refers to changes in
a) Amplitude
b) Phase
c) Amplitude & Phase
d) None of the mentioned

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