DIGITAL RADIO GUIDE

TERRESTRIAL TRANSMISSION SYSTEMS - ISSUES

Figure 4.21: End of the transition period

In summary, the full potential of the new digital plans will not be available until the analogue switch off.

In terms of propagation performance at L-Band using T-DAB, concern about the efficiency of the 1.5 GHz Band has been largely removed as a result of extensive technical evaluation and field measurements, mainly by Canada’s Communications Research Centre (CRC). It was found that indoor reception at L-Band is comparable to that achieved at VHF frequencies. The reason is that the shorter wavelength at L-Band offsets the increased attenuation through walls at the lower VHF frequencies.

4.5.2The Implications of Simulcasting

Whilst the benefits of digital broadcasting and the opportunities offered by this technology are clear to broadcasters, there is concern about the time and cost implications of the transition from analogue to digital. Until the coverage from digital broadcasts matches that from existing FM and AM services, it is unrealistic to cut existing transmissions and disfranchise listeners. It could be some years before the new digital services provide comparable coverage and a receiver base is established. Only then can the analogue services be closed down.

The transition from analogue to digital is helped in many countries by cooperation between public and private broadcasters, that jointly develop the necessary infra- structure and create attractive new programmes, and suitable regulatory arrangements. Examples of such cooperation exist in Canada, Sweden, the UK, France, Italy, etc.

(1)HD Radio (IBOC)

IBOC transmission schemes are particularly well suited for ensuring a smooth transition to digital services. Since they are designed for compatibility with the existing analog signals, there is little or no disenfranchisement of listeners at the onset of service. New receiver costs are minimised since much of the existing circuitry can be shared by the analogue and digital portions of the receiver. And over time, as IBOC receiver penetration reaches a “critical mass,” individual

62

Page 61 Page 63
Page 62
Image 62
Grundig Digital Radio manual Implications of Simulcasting, HD Radio Iboc
Page 61 Page 63

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.
Top Page Image Contents