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도서명

 Land Mobile Radio Systems

저자/역자

 Edward N. Singer

출판사

 Prentice Hall

분야

 통신

목차/설명

 Summary

For those who work in the field of land mobile radio, including radio mechanics, radio engineers, directors of communications.

This revision of a best-selling, practical handbook on land mobile radio systems will enable readers to understand and apply the tremendous changes brought on by integrated circuits, microprocessors, computers, digital technology, and satellites. It integrates the new technologies with basic information on many different land mobile radio systems, and gives solutions to prevent very frustrating intermittent system failures. This edition brings readers up to date with technologies such as computers, digitized voice, second generation trunking, second generation simulcasting, amplitute compandored single sideband, second generation cellular, automatic vehicle location (including GPS), and satellites뾞nd demonstrates how the technologies are used in land mobile radio systems.

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Features

contains practical, integrated information on areas such as lightning protection, operation and maintenance of emergency power systems, and radio shop management.
shows how computers, digital communications, spectrum conservation systems, satellites and other technologies can be used to improve land radio communications.
outlines methods and formulas for making economic decisions in land mobile radio systems.
NEW뾩ooks at the FCC proposal to refarm the spectrum which will increase the number of channels and considers the new types of equipment which will be required.
NEW뾟rings readers up to date with emerging technologies, such as the digitizing of the human voice and second generation cellular, simulcasting, trunking, and other new systems using digitized voice.
NEW뾢xpands coverage on digital technologies, including forward error correcting systems.
NEW뾡escribes APCO 25 Standard for digitized voice equipment뾦ncluding a block diagram of the vocoder and a table giving the parameters of the two compatible systems of modulation.
NEW뾡iscusses PCN (Personal Communication Network) and other new systems.

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Table of Contents

1. Getting an Overview.
2. Examining Conventional FM Mobile Radio Systems.
3. Avoiding Problems with Squelch Systems.
4. Combining Receivers and Transmitters into One Antenna.
5. Controlling Frequencies.
6. Improving and Extending Area Coverage.
7. Conserving Spectrum.
8. The Ties that Bind.
9. Marrying Computer Technology and Land Mobile Radio Systems.
10. Taking Part in the Digital Revolution.
11. Using Pager Systems.
12. Keeping Your System Operating When the Electrical Power Fails.
13. Improving Radio Shop Management.
14. Minimizing Lightning Damage to Your System.
15. Understanding Land Mobile Radio Propagation.
16. Solving Radio Interference Problems.
17. Communications in Enclosed Areas.
18. Automatically Locating Your Vehicles.
19. Using Satellites for Land Mobile Communication Systems.
20. Obtaining Station Licenses and Frequency Coordination.

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