DIGITAL RADIO GUIDE

TERRESTRIAL TRANSMISSION SYSTEMS - DAB

4.2DAB – Eureka 147

Eureka 1471 is a digital radio system developed in Europe for reception by mobile, portable and fixed receivers with a simple non directional antenna. It can be used in terrestrial, satellite, hybrid (satellite with complementary terrestrial), and cable broadcast networks and has been designed to operate at any frequency from 30 to 3000 MHz. In practice, Eureka 147 is being implemented in two spectrum bands, VHF Band III and L Band. Further details of Eureka 147 can be found in Appendix A: The Eureka 147

System Description.

4.2.1System Development

Eureka2 was established in 1985 by 17 countries and the European Union to encourage a bottom up approach to technological development and to strengthen the competitive position of European companies on the world market. It supports the competitiveness of European companies through international collaboration, in creating links and networks of innovation. The 147th Eureka technical project was to develop a digital radio system, hence Eureka 147.

The Eureka 147 Consortium3 was founded in 1987 with 16 partners from Germany, France, The Netherlands and the UK. The Eureka 147 standard was defined in 1993 with ITU Recommendations released in 1994 and an initial ETSI standard released in 1995. Eureka closed the Eureka 147 project on 1 January 2000.

The first Eureka 147 prototype equipment was demonstrated in 1988 on the occasion of the Second Session of WARC-ORB conference held in Geneva. The first consumer type Eureka 147 receivers developed for pilot projects were released in 1995. The first Eureka 147 services commenced transmitting in the UK, Denmark and Sweden in 1995. Eureka 147 was officially launched at the Berlin IFA (a major consumer electronics show) in 1997.

The WorldDAB Forum4 was formed in 1995 to encourage international cooperation and coordination for the introduction of Eureka 147 onto the consumer market. The technical work previously carried out by Eureka 147 now takes place within the Technical and Commercial Committee of the WorldDAB Forum. In August 2003, DRM and WorldDAB announced they would collaborate in the development of their systems.

4.2.2Principal Advantages and Challenges

Advantages

Eureka 147 is a mature technology that has been implemented in the UK, Germany and Canada and extensively tested in other parts of Europe and in other countries including Australia.

Eureka 147 is defined by international ITU recommendations, European ETSI, Cenelec and IEC standards and national standards (e.g., British receiver standards).

1Eureka 147 is also known as DAB, Eureka DAB, S!147 (S! is the logo for Eureka projects) and ITU System A. T-DAB and S-DAB may also be used to distinguish between terrestrial and satellite versions of Eureka 147.

2Further information on Eureka at www.eureka.be

3Further information on Eureka-147 consortium at

http://www.eureka.be/ifs/files/ifs/jsp-bin/eureka/ifs/jsps/projectForm.jsp?enumber=147.

4Further information on WorldDAB forum at http://www.worlddab.org/dab

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Grundig Digital Radio manual DAB Eureka, System Development, Principal Advantages and Challenges, System Description
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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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