Below are the answers key for the Multiple Choice Questions (MCQs) in Chapter 26: Data Transmission from the book Teach Yourself Electricity and Electronics, 5th edition by Stan Gibilisco.
1. 155 kHz.
2. Digital modulation.
3. Reduced number of misprints.
4. 100 percent.
5. 10 kHz.
6. High-level modulation.
7. AFSK.
8. More effective use of transmitter power.
9. USB.
10. Signal strength as a function of frequency.
11. Plus-or-minus 5 kHz
12. The fidelity is better.
13. PAM.
14. PWM.
15. Eight.
16. 8 seconds.
17. Sending the data at a slow rate of speed.
18. 14.1 m.
19. Keeps the signal confined.
20. Simpler and easier maintenance.
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