Frenzel Self-test in Modern Communications Applications – Answers

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(Last Updated On: February 9, 2020)

Answers for Frenzel Self-test in Modern Communications Applications

Below are the answers key for Frenzel Self-test in Chapter 14: Modern Communications Applications from the book COMMUNICATIONS ELECTRONICS by Louis E. Frenzel. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.

1. scanning

2. telephone lines

3. C I TT

4. 2300, 1500

5. 2

6. charge coupled device

7. 3

8. handshaking

9. thermal

10. 9600

11. 200

12.PSK , Q AM

13. half

14. 56K, 400

15. true

16. false

17. true

18. cells

19. mobile telephone switching office

20.more spectrum space at the higher frequencies, frequency reuse of channels.

21. 666

22. true

23. FM

24. 3

25. 825, 845

26. 870, 890

27. 30

28. 45

29. frequency synthesizer

30. 45,82.2, 10.7,0.455

31. change or decrease

32. duplexer or isolator

33. false

34. MT SO

35. transmitter power level received signal level

36. transmit frequency, receive frequency, transmitter power.

37. receive signal strength indicator (RSSI )

38. 82.656

39. logic

40. two

41. control

42. distance or range

43. reflection

44. bearing or azimuth

45. 6.18

46. 3.5

47. 6.1

48. 1.15

49. short

50. microwave

51. true

52. pulse, continuous wave

53. Doppler

54. 589

55. false

56. duplexer

57. magnetron

58. spark gap

59. CRT

60. plan position indicator (PPI )

61. phased array

62. 6 MHz

63. amplitude, frequency

64. 4.5 MHz

65. VHF, UHF

66. luminance Y

67. vidicon, C C D

68. scanning

69. red, green, and blue

70. 525

71. 262 ½

72. 60 (59.94) and 30 (20.97) Hz

73.15,734 Hz (63.6 .s)

74. sync pulses

75. diplexer

76. red, green, blue

77. I, Q

78. balanced modulator, DSB suppressed in-phase and quadrature carrier AM

79. 3.58 MHz

80. phase

81. Y or luminance

82. frequency synthesizer

83. remote control

84. 589.75 MHz

85. 4 MHz

86. 41.25, 45.75 MHz

87. surface acoustic wave (SAW)

88. vestigial sideband AM

89. 4.5 MHz

90. quadrature detector and differential peak detector

91. balanced

92. color burst

93. sync separator

94. 15,734 Hz

95. 59.94 Hz, integrating

96. linear sawtooth

97. yoke

98. cathode, electron gun

99. magnetic fields, yoke coils

100. three

101. convergence

102. horizontal sweep output

103. fly back

104. head end

105. trunk, feeder

106. drops, 75

107. mixer

108. amplifiers

109. mixer, frequency synthesizer channel selector

110. 3, 4, antenna jack

111. less noise and signal attenuation for a better picture, greater reliability of reception, premium cable programming, and no need for an antenna

Complete List of Self-test and Reviewers in Communications Electronics

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