eet 110 survey of electronics chapter 16 communications
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EET 110EET 110Survey of ElectronicsSurvey of Electronics
Chapter 16Chapter 16
CommunicationsCommunications
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FIGURE 16-1FIGURE 16-1 Radio-frequency communication system. Radio-frequency communication system.
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FIGURE 16-2FIGURE 16-2 Transmitter-receiver systems. Transmitter-receiver systems.
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FIGURE 16-3FIGURE 16-3 Electromagnetic field charges. Electromagnetic field charges.
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FIGURE 16-3FIGURE 16-3 continued continued Electromagnetic field charges.Electromagnetic field charges.
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FIGURE 16-3FIGURE 16-3 continued continued Electromagnetic field charges.Electromagnetic field charges.
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FIGURE 16-4FIGURE 16-4 Sky-wave and ground-wave patterns. Sky-wave and ground-wave patterns.
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FIGURE 16-5FIGURE 16-5 Morse code. Morse code.
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FIGURE 16-6FIGURE 16-6 Comparison of CW signals: (a) continuous-wave signal; (b) coded or keyed continuous wave, Letter U. Comparison of CW signals: (a) continuous-wave signal; (b) coded or keyed continuous wave, Letter U.
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FIGURE 16-7FIGURE 16-7 Block diagram of CW communications system. Block diagram of CW communications system.
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FIGURE 16-8FIGURE 16-8 Single-stage CW transmitter. Single-stage CW transmitter.
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FIGURE 16-10FIGURE 16-10 CW receiver functions. CW receiver functions.
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FIGURE 16-11FIGURE 16-11 Antenna signal voltage and current. Antenna signal voltage and current.
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FIGURE 16-12FIGURE 16-12 (a) Input tuning circuit; (b) tuner frequency response curve. (a) Input tuning circuit; (b) tuner frequency response curve.
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FIGURE 16-12FIGURE 16-12 continued continued (a) Input tuning circuit; (b) tuner frequency response curve.(a) Input tuning circuit; (b) tuner frequency response curve.
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FIGURE 16-13FIGURE 16-13 continued continued Antenna coils. (Courtesy of J.W. Miller Division/Bell Industries.)Antenna coils. (Courtesy of J.W. Miller Division/Bell Industries.)
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FIGURE 16-14FIGURE 16-14 Tuned radio-frequency receiver. Tuned radio-frequency receiver.
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FIGURE 16-15FIGURE 16-15 Heterodyne detector frequencies. Heterodyne detector frequencies.
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FIGURE 16-16FIGURE 16-16 Heterodyne diode output. Heterodyne diode output.
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FIGURE 16-17FIGURE 16-17 Hartley oscillator used as a BFO. Hartley oscillator used as a BFO.
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FIGURE 16-18FIGURE 16-18 AM signal components. AM signal components.
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FIGURE 16-19FIGURE 16-19 Sideband frequencies of an AM signal. Sideband frequencies of an AM signal.
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FIGURE 16-20FIGURE 16-20 AM modulation levels: (a) undermodulation; (b) 100% modulation; (c) overmodulation. AM modulation levels: (a) undermodulation; (b) 100% modulation; (c) overmodulation.
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FIGURE 16-20FIGURE 16-20 continued continued AM modulation levels: (a) undermodulation; (b) 100% modulation; (c) overmodulation.AM modulation levels: (a) undermodulation; (b) 100% modulation; (c) overmodulation.
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FIGURE 16-20FIGURE 16-20 continued continued AM modulation levels: (a) undermodulation; (b) 100% modulation; (c) overmodulation.AM modulation levels: (a) undermodulation; (b) 100% modulation; (c) overmodulation.
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FIGURE 16-21FIGURE 16-21 AM communication system. AM communication system.
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FIGURE 16-22FIGURE 16-22 Simplified AM transmitter. Simplified AM transmitter.
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FIGURE 16-23FIGURE 16-23 5-W Am transmitter. 5-W Am transmitter.
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FIGURE 16-24FIGURE 16-24 Crystal radio receiver: (a) circuit; (b) waveforms. Crystal radio receiver: (a) circuit; (b) waveforms.
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FIGURE 16-25FIGURE 16-25 Superheterodyne receiver: (a) block diagram; (b) waveforms. Superheterodyne receiver: (a) block diagram; (b) waveforms.
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FIGURE 16-26FIGURE 16-26 Transistor AM receiver. Transistor AM receiver.
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FIGURE 16-27FIGURE 16-27 AM receiver IF transformers. ( Courtesy of J.W. Miller Division/Bell Industries.) AM receiver IF transformers. ( Courtesy of J.W. Miller Division/Bell Industries.)
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FIGURE 16-28FIGURE 16-28 Frequency modulation waves. Frequency modulation waves.
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FIGURE 16-30FIGURE 16-30 FM due to frequency changes in modulating component. FM due to frequency changes in modulating component.
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FIGURE 16-30FIGURE 16-30 continued continued FM due to frequency changes in modulating component.FM due to frequency changes in modulating component.
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FIGURE 16-31FIGURE 16-31 FM communication system: (a) direct FM transmitter; (b) superheterodyne FM receiver. FM communication system: (a) direct FM transmitter; (b) superheterodyne FM receiver.
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FIGURE 16-32FIGURE 16-32 Direct FM transmitter. Direct FM transmitter.
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FIGURE 16-33FIGURE 16-33 Block diagram of an FM receiver. Block diagram of an FM receiver.
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FIGURE 16-34FIGURE 16-34 Ratio detector. Ratio detector.
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FIGURE 16-35FIGURE 16-35 Diode conduction of a radio detector: (a) nonconduction; (b) conduction. Diode conduction of a radio detector: (a) nonconduction; (b) conduction.
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FIGURE 16-36FIGURE 16-36 Ratio detector response to frequency: (a) center frequency; (b) above center; (c) below center; (d) output Ratio detector response to frequency: (a) center frequency; (b) above center; (c) below center; (d) output waveform.waveform.
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FIGURE 16-37FIGURE 16-37 TV communications system: (a) transmitter; (b) receiver. TV communications system: (a) transmitter; (b) receiver.
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FIGURE 16-38FIGURE 16-38 Simplification of a TV camera tube. Simplification of a TV camera tube.
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FIGURE 16-39FIGURE 16-39 Scanning and sweep signals: (a) horizontal; (b) vertical. Scanning and sweep signals: (a) horizontal; (b) vertical.
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FIGURE 16-40FIGURE 16-40 Composite TV picture signal. Composite TV picture signal.
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FIGURE 16-41FIGURE 16-41 Monochrome TV transmitter. Monochrome TV transmitter.
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FIGURE 16-41FIGURE 16-41 continued continued Monochrome TV transmitter.Monochrome TV transmitter.
Dale R. PatrickDale R. PatrickElectricity and Electronics: A Survey, Electricity and Electronics: A Survey, 5e5e
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FIGURE 16-42FIGURE 16-42 Monochrome TV receiver. Monochrome TV receiver.
Dale R. PatrickDale R. PatrickElectricity and Electronics: A Survey, Electricity and Electronics: A Survey, 5e5e
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FIGURE 16-43FIGURE 16-43 Electromagnetic-deflection cathode-ray tube. Electromagnetic-deflection cathode-ray tube.
Dale R. PatrickDale R. PatrickElectricity and Electronics: A Survey, Electricity and Electronics: A Survey, 5e5e
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FIGURE 16-44FIGURE 16-44 Simplified color TV camera. Simplified color TV camera.
Dale R. PatrickDale R. PatrickElectricity and Electronics: A Survey, Electricity and Electronics: A Survey, 5e5e
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FIGURE 16-45FIGURE 16-45 Color TV transmitter block diagram. Color TV transmitter block diagram.
Dale R. PatrickDale R. PatrickElectricity and Electronics: A Survey, Electricity and Electronics: A Survey, 5e5e
Copyright ©2002 by Pearson Education, Inc.Copyright ©2002 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458Upper Saddle River, New Jersey 07458
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