Antennas are used

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Question:
Antennas are used

1.As transducer

2.To focus

3.As transducer & To focus

4.None of the mentioned

Posted Date:-2022-05-21 01:29:57

More MCQS Questions and answers

  1. In MPSK adding new signals _______ make it vulnerable to noise and in MFSK _______ make it vulnerable.
  2. According to reciprocity theorem, _____ and _____ are identical.
  3. AM-to-AM conversion brings about
  4. AM-to-PM conversion brings about
  5. Antenna gain ______ as effective area increases.
  6. Antenna’s efficiency is given by the ratio of
  7. Antennas are used
  8. Antipodal signals are
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  10. Atmospheric window region is used for
  11. Automatic repeat request is also called as
  12. Channel coding relates to area such as
  13. Check-sum scheme has
  14. Effective radiated power of an isotropic radiator can be given as a product of
  15. Energy per symbol Es is given as
  16. Error detection is realized using
  17. Example of block code is
  18. Examples of structured sequences are
  19. Field of view is ______ to antenna gain.
  20. For FSK signalling, WT is equal to
  21. Hybrid automatic repeat request is a combination of
  22. In analog receivers, noise bandwidth is _________ signal bandwidth.
  23. In continuous ARQ will pullback uses _____ system.
  24. In orthogonal signalling with symbols containing more number of bits we need ____ power.
  25. In which repeaters uplink is decoupled from the downlink?
  26. In which system, bit stream is portioned into even and odd stream?
  27. Link budget can help in predicting
  28. Link budget consists of calculation of
  29. M-ary signalling produces _______ error performance with orthogonal signalling and _______ error performance with multiple phase signalling.
  30. Mechanism contributing to a reduction in efficiency is called as
  31. Noise figure is a parameter that represents a ______ of the system.
  32. Noise figure measures the
  33. Path loss Ls is dependent on
  34. Space loss occurs due to a decrease in
  35. The beam-width becomes narrower on
  36. The error performance of MPSK ______ as M or k increases.
  37. The link availability measures the percentage of time the link can be ______
  38. The relation between the probability of bit error and probability of symbol error in M-ary orthogonal signalling is
  39. The space window region ranges from
  40. The stop and wait ARQ needs _______ connection.
  41. Thermal noise is generated due to
  42. Visibility is ________ to required availability.
  43. What are the functions of non-regenerative repeaters?
  44. What are the functions of satellite repeaters?
  45. When two networks are connected in series, its composite noise figure can be given as
  46. Which factor adds phase noise to the signal?
  47. Which is more vulnerable to noise?
  48. Which is the primary cost for degradation of error performance?
  49. Which method requires less redundancy?
  50. Which parameter is referred to as receiver sensitivity?
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