Grundig Comprehensive Guide to Digital Radio and ISDB-TSB Broadcasting
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DIGITAL RADIO GUIDE

TERRESTRIAL TRANSMISSION SYSTEMS - ISDB-TSB

4.3Japan's Digital Radio Broadcasting (ISDB-TSB)

4.3.1Overview

ISDB-TSB (Integrated Services Digital Broadcasting – Terrestrial for Sound Broadcasting) system was developed for terrestrial Digital Sound Broadcasting (DSB) and was included in the ITU-R Recommendation BS.1114-3 in 2004. The system specification was developed by the Association of Radio Industries and Businesses (ARIB) in October 1998. Laboratory experiments and field trials using Tokyo Tower were carried out to verify the system performance in 1999 and the final specification was approved as a Japanese Standard in November 1999.

Two stations were launched in Tokyo and Osaka in the frequency band 188 MHz to 192 MHz in October 2003.

4.3.2The Methods

A terrestrial TV broadcasting frequency band that fits for mobile communications, OFDM (Orthogonal Frequency Division Multiplexing) that withstands interference caused by multiple paths (delayed waves), a modulation method that fits for communications with cell phones and mobile receivers, powerful error correction function, etc., have been adopted to allow good communications with cell phones and mobile receivers.

Concerning information compression technology and multiplexing technology, MPEG-2 has been adopted after diverse compatible communications with digital broadcastings (such as terrestrial digital TV broadcasting, BS digital broadcasting, CS digital broadcasting) were considered. MPEG-2 offers a common base for signal processing, which leads to reduction in the production cost of receivers by using LSI-chip and consolidation of receivers as well as easy exchange of data with other media.

Since this broadcasting system has the common segment structure with terrestrial digital TV broadcasting, the receivers can be consolidated.

(1)Audio encoding system

MPEG-2 AAC (Advanced Audio Coding) and SBR (Spectral Band Replication) have been adopted. However, SBR is optional.

This system satisfies the ITU-R standard, which enables high-quality multiple channeling at a low bit rate of 144 kbps or so. It has been adopted by BS digital broadcasting and terrestrial digital TV broadcasting. The adoption to the DSB resulted from the consideration of cross-media communications.

(2)Restricted reception system MULTI2 system has been adopted.

A scramble system has been adopted for charged broadcasting. It is the MULTI2 system that has already been adopted for terrestrial digital TV broadcasting, BS digital broadcasting, and CS digital broadcasting. The adoption to the DSB resulted

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Contents Page Page Foreword Page Table of Contents Appendix C Glossary of Acronyms Introduction What is Digital Radio? DRM+ Terrestrial in service date Satellite Service dateDigital Radio Systems Why Digital Radio? DRM Digital Radio Mondiale Terrestrial Transmission SystemsOverall design Brief Description of the DRM SystemDistribution Interface DRM Source Encoding and Decoding Audio Source CodingDRM Source Decoding Channel coding and modulation Over the air Transmitter Considerations4 DRM+ System Description DAB EurekaSystem Development Principal Advantages and ChallengesChallenges Denmark DAB Development Worldwide asBelgium CanadaSingapore FranceGermany ItalySwitzerland South KoreaSpain SwedenUnited Kingdom Synergies with Other Systems Eureka 147 Main System FeaturesMain System Features Infrastructure RequirementsSynergies with Digital Radio Mondiale DRM DAB-Based Multimedia Broadcast Systems DMB T-DMB Future Developments of DABSynergies with Digital Television German DXB Project IP over Enhanced Packet ModeDAB-IP Enhanced Audio Codec, DAB+ DAB as carrier of multichannel audioDigital Radio Guide Terrestrial Transmission Systems DAB Types of Receivers Conceptual diagram of the outer coder and interleaverPC Receivers In-Home ReceiversIn-Car Receivers Handheld ReceiversJVC List of manufacturers and their DAB productsTeac Audio encoding system Japans Digital Radio Broadcasting ISDB-TSBOverview MethodsTransmission bandwidths Error correction systemMultiplexing System Transmission channel encoding system Modulation methodHierarchical transmission and partial reception Data Segment SpectraPage Parameter restrictions in connected transmission Example of connected transmission three TS’sInformation bit rates for the triple-segment transmission*5 Transmission capacitiesReceivers CharacteristicsMultiple voice broadcasting Overview of ServicesTrial receivers Receivers expectedBroadcasting of simplified moving images Download service experimentOutlook for the Future IBiquity HD Radio System HD Radio AM and FM Receivers HD Radio Standards ActivityTypical HD Radio Automobile Receivers HD Radio System Technical Design OverviewAdvanced Application Services AAS Core ServicesMain Program Service MPS Station Information Service SISFM Extended Hybrid Waveform Waveforms and SpectraHybrid Waveform FM All Digital Waveform 12 Hybrid AM HD Radio system spectrum allotment HD Radio Subsystems13 Functional Block Diagram of HD Radio System RF/Transmission System Receiver SystemsMultipath Resistance Features Common to North American Digital Radio SystemsSound Quality Audio Quality Ratings Frequency ResponseMpeg AAC Infrastructure Requirements Licensees Deployment StatusCase Study Allocations in Region Issues related to Terrestrial SystemsSpectrum Availability DAB DVB-T 18 RRC-06 planning area19 T-DAB coverages in Band Entries HD Radio Iboc Implications of SimulcastingDRM Digital Radio Mondiale CoverageDigital Radio Guide Terrestrial Transmission Systems Issues Broad Picture Satellite TransmissionWorldSpace ITU-R System D WorldSpace Coverage Map Transmission Footprints WorldSpace Up-link Coverage JVC Sirius Satellite Radio / XM Satellite Radio Sirius Overview Sirius Sdars Delivery System Raan Sirius ConstellationSirius Ground Track Repeaters Deployment StatusTT&C Continental US Satellites GroundMobile Broadcasting Corp. and TU Media Corp. ITU-R System E Bringing Radio to the Internet Internet Radio IRIntroduction Internet Radio peculiarities Internet Radio as a complement to established radio services Internet-only stations IR Portals and Music Portals Streaming technology for radio servicesDistribution networks Server-clientP2P networks WiMAX MulticastingPodcasting Internet Radio terminals and playback devicesInternet Radios relation with the traditional radio Measuring audience Digital Radio Guide Internet Radio Virgin Radio Case studies10.1 VRT Swedish Radio multichannel audio distribution Summary and ConclusionsLive Some Important Radio PortalsBeethoven Launch Music on Yahoo Launch.yahoo.comMTV Radio IM TuningRadio VH1 Last FMSHOUTcast Some Sources for the Digital Radio Guide Etsi Cenelec IEC Digital Radio Guide Sources Overview Major System FeaturesAppendix a The Eureka 147 System System Description Data Capacity Modes of OperationTable A.1 Eureka 147 Transmission Parameters IIINumber of audio services in a multiplex Data ServicesAudio Quality Spectrum Issues Eureka 147 Channel PlansTable A.2 Example of possible number of programs ITU DSB Handbook Planning ParametersBand 1452-1492 MHz Propagation PropertiesVHF Band Multimedia Object Transport MOT Recent system developmentsDynamic Label Electronic Programme Guide EPG Broadcast WebsiteSlide Show Etsi DAB Virtual Machine DAB JavaDAB Receiver Interfaces Conditional AccessTopNews SBR LayerFile caching in the receiver Tpeg transport in DAB IP datacasting in DABThird Edition Advanced demodulation technique for CofdmTable A.3 Etsi Standards relating to Eureka Number TitleGSM / Pstn / Isdn / Dect ITU Publications and Recommendations Receiver StandardsTable A.4 Receiver Standards for Eureka Reference TitleNasb Appendix B Relevant World Wide WebsitesBBC DAB 111 Glossary of Acronyms DRP DRBDrdb DRMITU IeeeIfpi ISDB-TSBPNG P2PPAD PDATmcc TDMTdma TMCDisclaimer

Digital Radio specifications

The Grundig Digital Radio represents a significant advancement in radio technology, combining aesthetics, functionality, and a user-friendly interface. As a pioneer in the audio and electronics industry, Grundig has successfully integrated modern digital capabilities into its traditional radio design, appealing to both nostalgic listeners and tech-savvy users.

One of the standout features of the Grundig Digital Radio is its versatility in reception. With DAB+ (Digital Audio Broadcasting) technology, users can enjoy a wide array of radio stations with superior sound quality, free from the hiss and interference commonly associated with analog broadcasts. The inclusion of FM and AM bands ensures that listeners are not limited, providing access to local stations that may not yet have transitioned to digital.

The Grundig Digital Radio is designed with ease of use in mind. Its intuitive interface, often featuring a clear LCD display, allows users to navigate through stations and settings effortlessly. Many models also include a built-in tuner that automatically scans and presets available stations, simplifying the setup process. For those who appreciate personalization, some variants come equipped with customizable presets, allowing users to save their favorite stations for quick access.

Portability is another key characteristic of the Grundig Digital Radio. Many models are lightweight and come with built-in handles, making them ideal for on-the-go listening, whether it's in the garden, on the beach, or during a picnic. Battery options, alongside mains power, ensure that users can take advantage of their radios wherever they choose.

In terms of sound quality, Grundig utilizes advanced audio technologies to deliver rich and clear sound. Enhanced bass responses and treble controls allow users to fine-tune their listening experience to match their preferences. Furthermore, many models feature additional inputs, such as AUX and USB ports, enabling users to connect their smartphones or other devices, expanding their audio options.

Other notable characteristics include built-in alarms and timers, which make the Grundig Digital Radio a versatile companion for daily routines. Some models even support Bluetooth connectivity, allowing for seamless streaming from a variety of devices.

In summary, the Grundig Digital Radio embodies the perfect blend of traditional radio appeal and modern digital technology, offering versatility, ease of use, superior sound quality, and portability to meet the diverse needs of today’s listeners. Its well-thought-out features and user-friendly design make it an excellent choice for anyone looking to enhance their audio experience.
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