Grundig Digital Radio manual HD Radio System Technical Design Overview

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DIGITAL RADIO GUIDE

TERRESTRIAL TRANSMISSION SYSTEMS - HD RADIO

existing analogue signal. As a result, HD Radio receivers are expected to cost no more than 20% more than existing analogue receivers.

Figure 4.9 - Typical HD Radio Automobile Receivers

The first phase of the HD Radio receiver roll out is focusing on automobile and home hi-fi receivers. Aftermarket automobile receivers and home receivers began reaching the market in early 2004. OEM automobile receivers are scheduled to be introduced for the automobile model year 2006, which should be launched in the third quarter of 2005. Figure 4.9 shows fully functional automobile receivers designed to fit into the standard car mount frames.

Along with the introduction of second and third generation HD Radio semiconductors, featuring lower power consumption and cost during the two or three years after the initial receiver introduction, portable and lower cost receiver products are expected to be introduced.

4.4.3HD Radio System Technical Design Overview

The HD Radio system is designed to permit a smooth evolution from current analog Amplitude Modulation (AM) and Frequency Modulation (FM) radio to a fully digital In- Band On-Channel (IBOC) system. This system can deliver digital audio and data services to mobile, portable, and fixed receivers from terrestrial transmitters in the existing Medium Frequency (MF) and Very High Frequency (VHF) radio bands. The system is designed to allow broadcasters to continue to transmit analog AM and FM simultaneously with new, higher-quality and more robust digital signals, allowing broadcasters and their listeners to convert from analog to digital radio while maintaining each station’s current frequency allocation.

The HD Radio system allows a broadcast station to offer multiple services. A service can be thought of as a logical grouping of application data identified by the HD Radio system. Services are grouped into one of two categories:

Core Services:

•Main Program Service (both Audio (MPA) and Data (PAD))

•Station Information Service (SIS)

•Advanced Application Services (AAS)

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Contents Page Page Foreword Page Table of Contents Appendix C Glossary of Acronyms Introduction What is Digital Radio? Digital Radio Systems Terrestrial in service date Satellite Service dateDRM+ Why Digital Radio? Terrestrial Transmission Systems DRM Digital Radio MondialeBrief Description of the DRM System Overall designDistribution Interface Audio Source Coding DRM Source Encoding and DecodingDRM Source Decoding Channel coding and modulation Transmitter Considerations Over the air4 DRM+ Principal Advantages and Challenges DAB EurekaSystem Development System DescriptionChallenges Canada DAB Development Worldwide asBelgium DenmarkItaly FranceGermany SingaporeSweden South KoreaSpain SwitzerlandUnited Kingdom Infrastructure Requirements Eureka 147 Main System FeaturesMain System Features Synergies with Other SystemsSynergies with Digital Radio Mondiale DRM Synergies with Digital Television Future Developments of DABDAB-Based Multimedia Broadcast Systems DMB T-DMB DAB-IP IP over Enhanced Packet ModeGerman DXB Project DAB as carrier of multichannel audio Enhanced Audio Codec, DAB+Digital Radio Guide Terrestrial Transmission Systems DAB Conceptual diagram of the outer coder and interleaver Types of ReceiversHandheld Receivers In-Home ReceiversIn-Car Receivers PC ReceiversList of manufacturers and their DAB products JVCTeac Methods Japans Digital Radio Broadcasting ISDB-TSBOverview Audio encoding systemTransmission channel encoding system Modulation method Error correction systemMultiplexing System Transmission bandwidthsData Segment Spectra Hierarchical transmission and partial receptionPage Example of connected transmission three TS’s Parameter restrictions in connected transmissionTransmission capacities Information bit rates for the triple-segment transmission*5Characteristics ReceiversReceivers expected Overview of ServicesTrial receivers Multiple voice broadcastingOutlook for the Future Download service experimentBroadcasting of simplified moving images IBiquity HD Radio System HD Radio Standards Activity HD Radio AM and FM ReceiversHD Radio System Technical Design Overview Typical HD Radio Automobile ReceiversStation Information Service SIS Core ServicesMain Program Service MPS Advanced Application Services AASHybrid Waveform Waveforms and SpectraFM Extended Hybrid Waveform FM All Digital Waveform HD Radio Subsystems 12 Hybrid AM HD Radio system spectrum allotment13 Functional Block Diagram of HD Radio System Receiver Systems RF/Transmission SystemSound Quality Features Common to North American Digital Radio SystemsMultipath Resistance Frequency Response Audio Quality RatingsMpeg AAC Infrastructure Requirements Deployment Status LicenseesSpectrum Availability Issues related to Terrestrial SystemsCase Study Allocations in Region 18 RRC-06 planning area DAB DVB-T19 T-DAB coverages in Band Entries Implications of Simulcasting HD Radio IbocCoverage DRM Digital Radio MondialeDigital Radio Guide Terrestrial Transmission Systems Issues WorldSpace ITU-R System D Satellite TransmissionBroad Picture WorldSpace Coverage Map Transmission Footprints WorldSpace Up-link Coverage JVC Sirius Satellite Radio / XM Satellite Radio Sirius Overview Sirius Sdars Delivery System Sirius Constellation RaanSirius Ground Track Continental US Satellites Ground Deployment StatusTT&C RepeatersMobile Broadcasting Corp. and TU Media Corp. ITU-R System E Introduction Internet Radio IRBringing Radio to the Internet Internet Radio peculiarities Internet Radio as a complement to established radio services Streaming technology for radio services Internet-only stations IR Portals and Music PortalsServer-client Distribution networksWiMAX Multicasting P2P networksInternet Radio terminals and playback devices PodcastingInternet Radios relation with the traditional radio Measuring audience Digital Radio Guide Internet Radio 10.1 VRT Case studiesVirgin Radio Summary and Conclusions Swedish Radio multichannel audio distributionLaunch Music on Yahoo Launch.yahoo.com Some Important Radio PortalsBeethoven LiveLast FM IM TuningRadio VH1 MTV RadioSHOUTcast Some Sources for the Digital Radio Guide Etsi Cenelec IEC Digital Radio Guide Sources Appendix a The Eureka 147 System System Description Major System FeaturesOverview III Modes of OperationTable A.1 Eureka 147 Transmission Parameters Data CapacityData Services Number of audio services in a multiplexTable A.2 Example of possible number of programs Spectrum Issues Eureka 147 Channel PlansAudio Quality Planning Parameters ITU DSB HandbookVHF Band Propagation PropertiesBand 1452-1492 MHz Recent system developments Multimedia Object Transport MOTDynamic Label Slide Show Broadcast WebsiteElectronic Programme Guide EPG DAB Virtual Machine DAB Java EtsiConditional Access DAB Receiver InterfacesFile caching in the receiver SBR LayerTopNews IP datacasting in DAB Tpeg transport in DABNumber Title Advanced demodulation technique for CofdmTable A.3 Etsi Standards relating to Eureka Third EditionGSM / Pstn / Isdn / Dect Reference Title Receiver StandardsTable A.4 Receiver Standards for Eureka ITU Publications and RecommendationsBBC DAB Appendix B Relevant World Wide WebsitesNasb 111 Glossary of Acronyms DRM DRBDrdb DRPISDB-TSB IeeeIfpi ITUPDA P2PPAD PNGTMC TDMTdma TmccDisclaimer

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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