Page 16 - Teach Yourself Electricity and Electronics

xvi Contents

Frequency and phase modulation 482
Pulse modulation 485
Analog-to-digital conversion 487
Image transmission 487
The electromagnetic field 490
Transmission media 493
Quiz 495
27 Data reception 499
Radio wave propagation 499
Receiver specifications 502
Definition of detection 504
Detection of AM signals 504
Detection of CW signals 505
Detection of FSK signals 506
Detection of SSB signals 506
Detection of FM signals 506
Detection of PM signals 508
Digital-to-analog conversion 509
Digital signal processing 510
The principle of signal mixing 511
The product detector 512
The superheterodyne 515
A modulated-light receiver 517
Quiz 517
28 Integrated circuits and data storage media 521
Boxes and cans 521
Advantages of IC technology 522
Limitations of IC technology 523
Linear versus digital 524
Types of linear ICs 524
Bipolar digital ICs 527
MOS digital ICs 527
Component density 529
IC memory 530
Magnetic media 532
Compact disks 535
Quiz 535
29 Electron tubes 539
Vacuum versus gas-filled 539
The diode tube 540
The triode 541
Extra grids 542
Some tubes are obsolete 544