1. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter Four Linear CW Modulation

2. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Bandpass signal (a) Spectrum; Waveform Figure 4.1-2

3. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. (a) Rotating phasor; (b) Phasor diagram with rotation suppressed Figure 4.1-3

4. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. AM waveforms (a) Message; (b) AM wave with  1 Figure 4.2-1

5. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. DSB waveforms Figure 4.2-3

6. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Spectral components in Eq. (1) Figure 4.3-4

7. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Balanced modulator Figure 4.3-5

8. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Ring modulator Figure 4.3-6

9. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Weaver’s SSB modulator Figure 4.4-7

10. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Envelope detection (a) Circuit; (b) Waveforms Figure 4.5-6