Below are the answers key for Multiple Choice Questions in Chapter 15: Broadband Communications Systems from the book Electronic Communication Systems by George Kennedy. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.
1. b. repeater amplifiers
2. a. frequency-division multiplex
3. a. occupies the frequency range from 60 to 108 kHz
4. d. interleaves pulses belonging to different transmissions
5. b. the bandwidth of the system
6. d. fed in at a GTE
7. c. because of the Earth’s curvature
8. a. they have less overall phase distortion
9. c. for the shallow shore ends of the cable
10. b. filters for the two directions of transmission
11. b. is not really stationary at all, but orbits the Earth within a 24-hr period
12. d. A satellite earth station must have as many receive chains as there are carriers transmitted to it
13. d. Intelsat
14. c. area codes
15. d. in erlangs
16. a. AND gates
17. a. AND gates
18. a. dividing pulse widths
19. d. stepped index operation
20. d. it does not lend itself to wave
21. b. INTELSAT V
22. a. INTELSAT, b. COMSAT d. INMARSAT
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