Satellite Communication General Knowledge Short Questions & Answers | Satellite Communication General Knowledge Quiz

Questions

41 As the height of a satellite orbit gets lower, the speed of the satellite _________.

A increases

B decreases

C remains the same

D None of the above

View Answer

Answer: increases

42 What is the delay time for satellite transmissions from earth transmitter to earth receiver?

A 0.5 s

B 1s

C 5 ms

D 0.25 s

View Answer

Answer: 0.5 s

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43 A method of multiple accessing where a given RF channel bandwidth is divided inot smaller frequency band.

A CDMA

B ANIK-D

C TDMA

D FDMA

View Answer

Answer: FDMA

44 The switching from one element to the other element in a typical mobile satellite array.

A Series

B Radial

C Matrix

D Shunt

View Answer

Answer: Shunt

45 Most mobile satellite array uses ___________ in transforming 50 to 150 Ω impedance.

A stub

B balun

C quarter-wavelength transformer

D microstrip tapers

View Answer

Answer: quarter-wavelength transformer

46 What circuit is responsible in activating and deactivating adjacent antenna elements in a mobile satellite array?

A Radial divider

B Divider/combiner

C Radial combiner

D Radial multiplexer

View Answer

Answer: Radial divider

47 In a typical mobile satellite array antenna if three elements are activated, how many elements are deactivated?

A 3

B 11

C 5

D 9

View Answer

Answer: 11

48 A mobile satellite array has usually how many elements?

A 6

B 88

C 12

D 14

View Answer

Answer: 14

49 The most common device used as an LNA is

A zener diode

B tunnel diode

C IMPATT

D Shockley diode

View Answer

Answer: tunnel diode

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