Grundig Digital Radio - Manual (Page 5)

5
TABLE OF CONTENTS
1 INTRODUCTION............................................................................................................................... 7
2 WHAT IS DIGITAL RADIO?........................................................................................................... 8
3 WHY DIGITAL RADIO? ................................................................................................................ 10
4 TERRESTRIAL TRANSMISSION SYSTEMS............................................................................. 11
4.1 DRM – D IGITAL R ADIO M ONDIALE ........................................................................................... 11
4.1.1 Key Features of the System Design for the Markets to be Served by the DRM System ........ 11
4.1.2 Brief Description of the DRM System ................................................................................... 12
4.1.3 Transmitter Considerations .................................................................................................. 17
4.1.4 DRM+ ................................................................................................................................... 18
4.2 DAB – E UREKA 147................................................................................................................... 19
4.2.1 System Development ............................................................................................................. 19
4.2.2 Principal Advantages and Challenges.................................................................................. 19
4.2.3 DAB Development Worldwide as of 2006............................................................................. 21
4.2.4 Infrastructure Requirements ................................................................................................. 25
4.2.5 Synergies with Other Systems ............................................................................................... 25
4.2.6 Future Developments of DAB ............................................................................................... 27
4.2.7 Types of Receivers ................................................................................................................ 31
4.3 J APAN ' S D IGITAL R ADIO B ROADCASTING (ISDB-TSB) ............................................................. 35
4.3.1 Overview ............................................................................................................................... 35
4.3.2 The Methods.......................................................................................................................... 35
4.3.3 Characteristics...................................................................................................................... 41
4.3.4 Receivers............................................................................................................................... 41
4.3.5 Overview of Services............................................................................................................. 42
4.3.6 Outlook for the Future .......................................................................................................... 43
4.4 I B IQUITY HD R ADIO S YSTEM ..................................................................................................... 44
4.4.1 HD Radio Standards Activity................................................................................................ 45
4.4.2 HD Radio AM and FM Receivers ......................................................................................... 45
4.4.3 HD Radio System Technical Design Overview..................................................................... 46
4.4.4 Core Services ........................................................................................................................ 47
4.4.5 HD Radio Subsystems ........................................................................................................... 50
4.4.6 Receiver Systems................................................................................................................... 52
4.4.7 Features Common to North American Digital Radio Systems.............................................. 53
4.4.8 Infrastructure Requirements ................................................................................................. 56
4.5 I SSUES RELATED TO T ERRESTRIAL S YSTEMS .............................................................................. 58
4.5.1 Spectrum Availability............................................................................................................ 58
4.5.2 The Implications of Simulcasting.......................................................................................... 62
4.5.3 Coverage............................................................................................................................... 63
5 SATELLITE TRANSMISSION ...................................................................................................... 65
5.1 W ORLD S PACE – ITU-R S YSTEM D............................................................................................. 65
5.1.1 Receiver Systems................................................................................................................... 68
5.2 SIRIUS S ATELLITE R ADIO / XM S ATELLITE R ADIO ................................................................... 69
5.2.1 Sirius Overview..................................................................................................................... 70
5.2.2 Deployment Status ................................................................................................................ 74
5.3 M OBILE B ROADCASTING C ORP . AND TU M EDIA C ORP . – ITU-R S YSTEM E.............................. 75
5.3.1 Receiver Systems................................................................................................................... 75
6 INTERNET RADIO (IR) ................................................................................................................. 76
6.1 I NTRODUCTION ........................................................................................................................... 76
6.2 B RINGING R ADIO TO THE I NTERNET ........................................................................................... 76