1. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter Seven Analog Communication Systems

2. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Superhetrodyne receiver Figure 7.1-1

3. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Superhet receiver waveforms Figure 7.1-2

4. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Direct conversion receiver Figure 7.1-3

5. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Direct conversion receiver with opposite sideband rejection Figure 7.1-4

6. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Double conversion receiver Figure 7.1-5

7. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Scanning spectrum analyzer (a) block diagram (b) amplitude response Figure 7.1-6

8. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FDM transmitter (a) input spectra & block diagram (b) baseband FDM spectrum Figure 7.2-1

9. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FDM receiver Figure 7.2-2

10. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FDMA satellite system Figure 7.2-3

11. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FM stereo multiplexing (a) transmitter (b) baseband spectrum Figure 7.2-4

12. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FM stereo multiplex receiver Figure 7.2-5

13. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Quadrature-carrier multiplexing Figure 7.2-6

14. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. TDM system (a) block diagram (b) waveforms Figure 7.2-7

15. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. TDM synchronization markers Figure 7.2-9

16. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. (a) TDM transmitter with baseband filtering (b) baseband waveform Figure 7.2-10

17. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Cross talk in TDM Figure 7.2-12

18. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. TDM/PPM with guard time Figure 7.2-13

19. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Phase comparitors (a) analog (b) digital Figure 7.3-1

20. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Phase-lock loop Figure 7.3-2

21. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. PLL pilot filter with two phase discriminators Figure 7.3-3

22. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Costas PLL system for synchronous detection Figure 7.3-4

23. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Frequency synthesizer with fixed and adjustable outputs Figure 7.3-7

24. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Linearized PLL models (a) time domain (b) phase (c) frequency domain Figure 7.3-8

25. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Monochrome TV transmitter Figure 7.4-6

26. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Monochrome TV receiver Figure 7.4-7

27. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Color subcarrier modulation system Figure 7.4-10

28. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Color demodulation system Figure 7.4-11

29. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Scene capabilities of conventional NTSC system and HDTV Figure 7.4-12

30. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Viewing angles as a function of distance (a) conventional NTSC (b) HDTV Figure 7.4-13

31. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. HDTV transmitter Figure 7.4-14

32. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. HDTV receiver Figure 7.4-15