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Home ‣ Electronics and Communication Engineering ‣ Satellite Communication Comments
  • Question

  • In the context of error detection in satellite transmission, ARQ stands for


  • Options
  • A. Automatic Repeat Request
  • B. Automatic Relay Request
  • C. Accelerated Recovery Request
  • D. Automatic Radiation Quenching

  • Correct Answer
  • Automatic Repeat Request 

    • Satellite Communication problems

    Search Results

    • 1. A telephone user while talking to a person via a satellite has to wait for reply for about __________ millisecond.

    • Options
    • A. 100
    • B. 270
    • C. 470
    • D. 540
      • Discuss
    • 2. Master control facility (MCF) for INSAT-2 series satellites is located at

    • Options
    • A. Madras
    • B. New Delhi
    • C. Leh
    • D. Hassan
      • Discuss
    • 3. APPLE was into orbit on 19 th June 1981 by European Space Agency (ESA) from

    • Options
    • A. Cape Canaveral in Florida
    • B. Kourou in French Guyana
    • C. Canarvon in Western Australia
    • D. Bangalore in South India
      • Discuss
    • 4. Point out the false statement.
      Launching of geostationary experimental communication satellite has helped India to gain experience in

    • Options
    • A. Building, for the time, a body-stabilized geosynchronous communication satellite with its own apogee propulsion and control systems
    • B. Attitude control and station management operations for a geostationary satellite
    • C. Building launching rocket Ariane for putting APPLE in orbit
    • D. Domestic communications on an experimental basis
      • Discuss
    • 5. When a communication satellite passes into Earth's shadow, its temperature drops to about __________ ° K.

    • Options
    • A. 273
    • B. 243
    • C. 170
    • D. 123
      • Discuss
    • 6. Depending on the technique used, digitized television requires a bit rate between __________ millions.

    • Options
    • A. 40 and 92.5
    • B. 25 and 60
    • C. 30 and 82.5
    • D. 2
      • Discuss
    • 7. Space communication links are being increasingly moved into Ka-band (200-30 GHz) because it

    • Options
    • A. offers a much wider available bandwidth
    • B. does not suffer from atmospheric at tenuation
    • C. permits the use of smaller antenna
    • D. does not suffer from rain attenuation
      • Discuss
    • 8. A thyristor needs protection against

    • Options
    • A. high
    • B. high
    • C. both high and high
    • D. either high or high
      • Discuss
    • 9. All inverters use forced commutation.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. Assertion (A): A dual converter may be circulating current type or non circulating current type.

      Reason (R): In circulating current dual converter only one converter can be operated at one time.


    • Options
    • A. Both A and R are correct and R is correct explanation of A
    • B. Both A and R correct but R is not correct explanation of A
    • C. A is correct but R is wrong
    • D. A is wrong but R is correct
      • Discuss

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