EET 110 Survey of Electronics Chapter 16 Communications.

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Presentation transcript:

EET 110 Survey of Electronics Chapter 16 Communications

FIGURE 16-1 Radio-frequency communication system. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 16-2 Transmitter-receiver systems. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 16-3 Electromagnetic field charges. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 16-3 continued Electromagnetic field charges. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 16-3 continued Electromagnetic field charges. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 16-4 Sky-wave and ground-wave patterns. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 16-5 Morse code. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 16-6 Comparison of CW signals: (a) continuous-wave signal; (b) coded or keyed continuous wave, Letter U. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 16-7 Block diagram of CW communications system. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE 16-8 Single-stage CW transmitter. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE CW receiver functions. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Antenna signal voltage and current. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE (a) Input tuning circuit; (b) tuner frequency response curve. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE continued (a) Input tuning circuit; (b) tuner frequency response curve. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE continued Antenna coils. (Courtesy of J.W. Miller Division/Bell Industries.) Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Tuned radio-frequency receiver. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Heterodyne detector frequencies. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Heterodyne diode output. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Hartley oscillator used as a BFO. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE AM signal components. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Sideband frequencies of an AM signal. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE AM modulation levels: (a) undermodulation; (b) 100% modulation; (c) overmodulation. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE continued AM modulation levels: (a) undermodulation; (b) 100% modulation; (c) overmodulation. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE continued AM modulation levels: (a) undermodulation; (b) 100% modulation; (c) overmodulation. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE AM communication system. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Simplified AM transmitter. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE W Am transmitter. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Crystal radio receiver: (a) circuit; (b) waveforms. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Superheterodyne receiver: (a) block diagram; (b) waveforms. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Transistor AM receiver. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE AM receiver IF transformers. ( Courtesy of J.W. Miller Division/Bell Industries.) Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Frequency modulation waves. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE FM due to frequency changes in modulating component. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE continued FM due to frequency changes in modulating component. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE FM communication system: (a) direct FM transmitter; (b) superheterodyne FM receiver. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Direct FM transmitter. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Block diagram of an FM receiver. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Ratio detector. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Diode conduction of a radio detector: (a) nonconduction; (b) conduction. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Ratio detector response to frequency: (a) center frequency; (b) above center; (c) below center; (d) output waveform. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE TV communications system: (a) transmitter; (b) receiver. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Simplification of a TV camera tube. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Scanning and sweep signals: (a) horizontal; (b) vertical. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Composite TV picture signal. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Monochrome TV transmitter. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE continued Monochrome TV transmitter. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Monochrome TV receiver. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Electromagnetic-deflection cathode-ray tube. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Simplified color TV camera. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.

FIGURE Color TV transmitter block diagram. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey All rights reserved.