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Public and private land mobile radio : technologies services and economics

Langue : Anglais

Auteur :

This is the first comprehensive professionals guide to Specialized Mobile Radio (SMR) -- a family of wireless technologies that will serve more than 118 million customers worldwide by the year 2001.KEY TOPICS:From emergency medical dispatch to hotel communications, SMR offers extraordinary opportunities for the wireless professional. Now, technical, management and marketing professionals can learn all they need to know about SMR in one expert guide.Public and Private Land Mobile Radio: Technologies, Services, and Economicsintroduces every leading SMR technology in the global marketplace -- including proprietary systems that are rarely documented in depth. Understand key SMR analog and digital design challenges affecting both network systems and handsets, deployment and testing issues, applications, economics, and more. Finally, preview the future of SMR technology.MARKET:For communications and wireless system engineers, managers, and technicians involved with -- or interested in -- SMR technology.
1. Introduction to Land Mobile Radio.
Conventional Land Mobile Radio (Two-Wav). Commercial Trunked Radio. The Need for Land Mobile Radio. Locations of Commercial Trunked Radio Systems.
North America. Europe/Eurasia. Central and South America and the Caribbean. Asia-Pacific. Africa/Middle East.
Commercial Trunked Radio Services.
Voice. Dispatch. Paging and Messaging. Data.
Commercial Trunked Radio Standards.
Analog Systems. Digital Systems.
Trunked Mobile Radio Equipment. Commercial Trunked Radio Users. Commercial Trunked Radio Equipment Suppliers. Trunked Radio Competition. Radio Spectrum Regulation. Summary.

2. SMR Technology and Evolution.
Mobile Radio Systems.
Conventional Two-Way Radio. Trunked Radio. Enhanced Specialized Mobile Radio (ESMR).
Technologies.
Analog. Digital. Simplex Systems. Semi-Duplex Systems. Full Duplex Systems. Repeater Systems. Community Repeater Systems. Conventional System Enhancements.
Key Applications.
Public Safety. Emergency. Industrial. Utilities. Transportation. Marine. Local Dispatch. Business Radio Services. Location Tracking. Environemental. Security.

3. Analog Land Mobile Radio Systems.
Logic Trunked Radio (LTR). SmartWorks. SmartNet. SmarTrunk. SmartZone. LTR-Net. Multi-Net II. PassPort. APCO. ESAS. MPT.

4. Digital LMR Technology.
Digital System Advantages.
Increased Capacity. New Features. Digital Transmission Quality. Security and Voice Privacy. Economic Benefits.
System Access Technologies.
Frequency Division Multiple Access (FDMA). Time Division Multiple Access (TDMA). Spread Spectrum (FHMA and CDMA).
Modulation.
Amplitude Modulation (AM). Frequency Modulation (FM). Phase Modulation (PM). Combined Phase and Amplitude Modulation.
Radio Channel Types.
Traffic (or Voice) Channels. Control.
Duplex Operation. Voice Processing/Speech Coding. Channel Coding (Error Detection and Correction).
Block Coding. Convolutional Coding.
RF Power Level Control. Dynamic Time Alignment. Spectral Efficiency. System Efficiency. System Security and Privacy. Dual Mode Systems. Signaling.
In-Band Signaling. Out-of-Band Signaling. Logical Channels.
Squelch Systems.
Carrier Controlled Squelch System. Tone Controlled Squelch System. Digital Squelch System.

5. Digital LMR Systems.
iDEN. EDACS. TETRA. TETRA POL. Project 25.

6. Land Mobile Radios.
Analog Audio Signal Processing. Digital Audio Signal Processing. Speech Coding. Error Protection. Radio Signal Processing. Display Technology.
Antennas.
Gain. Antenna Loaded Coils.
Accessories.
External Microphone. External Speaker. Modems and Data Adapters. Battery Chargers. Software Download Transfer Equipment. Subscriber Identity Cards.
Power Supply.
Vehicle Power Supplies. Line Voltage Power Supplies. Batteries.
Digital Land Mobile Radio.

7. Land Mobile Radio Systems.
Land Mobile Radio System Equipment.
Base Stations. Antenna Towers. Repeater Relays. Dispatch Consoles. Switching Centers. Databases. System Security.
Implementation Methods.
Radio Simulcasting. Offset Radio Channel. Frequency Reuse. Handoff. Voting Receivers. Upgrading Conventional LMR to Trunked Radio Systems. Integrated and Overlay. Sub-Rate Multiplexing. Distributed Switching. Echo Cancelers.
LMR System Interconnections.
Public Telephone Network. Dispatch Center. Data Networks. Voice and Fax Mail Systems. Customer Service Center.
System Design.
Strategic Planning. Radio Propagation. Frequency Planning. System Testing and Verification.

8. LMR Economics.
Land Mobile Radios.
Development Costs. Cost of Production. Patent Royalty Cost. Marketing Cost. Post-Sales Support. Manufacturers Profit.
System Equipment.
Development Costs. Cost of Production.

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