[...]... DVB-C Cable television transmission standard DVB-S Satellite television transmission standard DVB-SI Specification for service information DVB-CS SMATV (Satellite Master Antenna Television) transmission standard DVB-TXT Teletext transport specification DVB is working on other standards including: DVB-TRC The digital terrestrial return channel DVB-MHP The digital multimedia home platform DVB-MC The digital. .. have adopted the MPEG-2 system for source encoding and system information and have established the Japanese Digital Broadcasting Experts Group (DiBEG) to formulate a strategy for digital broadcasting on various transmission media The Japanese are evaluating a variant of the COFDM system for terrestrial broadcasting known as integrated services digital broadcasting -terrestrial, (ISDB-T) Current Situation... produce European standard for terrestrial systems 1998 Digital terrestrial services launched in the United Kingdom 1998 Digital terrestrial transmissions begin in the United States 1998 Australia adopts the DVB terrestrial system This standard, expected in the early years of the new millennium, should have enhanced mobility features over the existing DVB-T standard 1.4 Digital Television Organizations... 203 203 xiv Understanding Digital Terrestrial Broadcasting 12.6.2 Digital MMDS Arrangements 12.7 Link Budgets 12.7.1 ERP 203 204 204 12.7.2 Thermal Noise Floor and Noise Temperature of a Receiver 12.8 Implementation Scenarios for Digital MMDS 205 206 13 13.1 13.2 13.3 13.4 13.5 13.5.1 13.6 13.7 13.7.1 13.7.1 Digital Audio Broadcasting and Digital Radio Introduction DAB Organizations Why go digital for... system is at 2.5–2.7 GHz) DVB-MS The digital microwave multipoint distribution system (MMDS) above 10 GHz DVB-CI The DVB common interface for use in conditional access (CA) The DVB project meets a number of times each year in the EBU Headquarters in Geneva and is working on all aspects of transmission 8 Understanding Digital Terrestrial Broadcasting DAVIC—The Digital Audio-Visual Council was created... equipment, (refer to JTC 1 below) MPEG has produced standards including: MPEG-1 a standard for the storage and retrieval of moving pictures and audio on digital storage media MPEG-2 a standard for digital television broadcasting Two more standards are under development: MPEG-4 a standard for multimedia applications MPEG-7 an Audio-Visual content representation standard for fast information searching and... standardization of digital television through the ITU-R (Radiocommunication Sector) and the ITU-T (Telecommunication Standardization Sector) The ITU-T recommendation J.81 for the transmission of video at 34 Mbps on Telecommunications networks is identical to the ETSI standard (ETS 300 174) Within the ITU-R two working parties are active in the field of DTV, working party 11/3 in the field of digital terrestrial. .. analog television It is easy to store digital images on computers and discs and play them continuously over digital networks without signal degradation Images can be edited and enhanced, compressed and stored, transmitted and printed By representing pictures as binary digits (0’s and 1’s) digital television is extremely flexible in how it treats 1 2 Understanding Digital Terrestrial Broadcasting information... analog 4 Understanding Digital Terrestrial Broadcasting television standard (NTSC) By 1992 four proposals were short-listed, and by 1993 agreement was reached by the four proposing consortia to form a Grand Alliance (GA) to complete development of the standard [1] The GA has specified a Dolby standard called AC-3 for multichannel audio source encoding, and has specified MPEG’s standard known as MPEG-2 for... Upper Adjacent Analog Transmitters 11 Radio Frequency Considerations for Digital Terrestrial Television Services 179 180 180 183 11.1 Introduction 11.2 Requirements for Fixed, Portable, and Mobile Reception 11.2.1 Introduction to Digital Coverage 183 185 185 11.2.2 Field Strength and Carrier-to-Noise Ratio 185 11.2.3 Analog Versus Digital Coverage Failure 186 11.2.4 Location Coverage Probability 186 11.2.5 . Understanding Digital Terrestrial Broadcasting Understanding Digital Terrestrial Broadcasting Seamus OLeary Artech House Boston  London www.artechhouse.com Library of Congress Cataloging-in-Publication. Seamus Understanding digital terrestrial broadcasting.  (Artech House digital audio and video library) 1. Digital television 2. Digital audio broadcasting I. Title 621.388 ISBN 1-5 805 3-4 6 2-7 Cover. index. ISBN 1-5 805 3-0 63-X (alk. paper) 1. Digital communications. 2. Television broadcasting. 3. Digital audio broadcasting. I. Title. II. Series. TK5103.7.O49 2000 621.384dc21 0 0-0 40624 CIP British