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Frenzel Self-test in Introduction to Electronic Communications – Answers

(Last Updated On: February 9, 2020)

Answers for Frenzel Self-test in Introduction to Electronic Communications

Below are the answers key for Frenzel Self-test in Chapter 1: Introduction to Electronic Communications 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. computers, communications, control ; computers

2. exchanging information

3. oral, written

4. distance, language

5. late nineteenth century

6. transmitter, receiver, channel or medium

7. wire, radio, fiber-optic cable

8. transmitter

9. receiver

10. noise, communications channel

11. degrades, attenuates

12. the atmosphere, manufactured equipment, thermal agitation in components

13. simplex, radio and TV broadcasting

14. full duplex, telephone communications

15. half duplex

16. analog

17. digital

18. analog-to-digital converter

19. base band

20. Modulation. base band, carrier

21. demodulation or detection

22. multiplexing

23. facsimile, teletext

24. garage door opener

25. paging

26. telemetry

27. radio waves

28. microwave relay, satellites, cordless phones, cellular phones

29. reflected

30. sonar (active)

31. active, passive

32. amateur or “ham” radio

33. modems

34. local area networks

35. electromagnetic waves or radio-frequency (RF) waves

36. electric, magnetic

37. 16.67 (300/18= 16.67)

38. 50, 60, ELF

39. a. c

40. 20, 20,000

41. 300, 3000

42. false

43. MF

44. short waves

45. VHF

46. land mobile, cellular telephones, military, radar and navigation, amateur radio

47. 1000

48. microwaves

49. radar, satellite

50. millimeter

51. 1 / 1,000,000

52. heat

53. 0.7, 10

54. 1 / 10.000

55. 4000,8000

56. fiber-optic cables, free space

57. bandwidth

58. sidebands

59. 125 (1.175 – 1.050 = 0.125 MHz = 125 kHz)

60. higher

61. lower

62. spectrum space

63. Communications Act of 1934

64. Federal Communications Commission

65. National Telecommunications and Information Administration

66. International Telecommunications Union

Complete List of Self-test and Reviewers in Communications Electronics

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