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# CHAP04 - 1.2 = 15.85 33 100,000 bits 5 Kbps = 20 s 35 480 s...

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1 CHAPTER 4 Transmission Media Multiple-Choice Questions 1. a 3. c 5. a 7. b 9. a 11. d 13. d 15. a 17. b 19. d 21. b 23. b 25. b Exercises 27. 22,287.83 miles / 186,000 miles per second = 0.120 s = 120 ms 29. dB = 10 log 10 (90 / 100) = –0.46 dB 31. The total gain is 3 × 4 = 12 dB. The signal is amplified by a factor 10

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Unformatted text preview: 1.2 = 15.85. 33. 100,000 bits / 5 Kbps = 20 s 35. 480 s × 300,000 km/s = 144,000,000 km 37. 1 µ m × 5 = 5 µ m 39. 4,000 log 2 (1 + 10 / 0.005) = 43,866 bps 2 CHAPTER 4 TRANSMISSION MEDIA...
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CHAP04 - 1.2 = 15.85 33 100,000 bits 5 Kbps = 20 s 35 480 s...

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