DIGITAL RADIO GUIDE

TERRESTRIAL TRANSMISSION SYSTEMS - HD RADIO

4.4.8Infrastructure Requirements

At this writing, approximately 250 HD Radio stations have commenced operations in the United States with an additional 300 stations currently licensed to commence operations in the coming year. Consumer receivers went on sale in early 2004 and considerable work has been done on implementation options that may significantly reduce installation costs at many stations.

In particular, the use of separate antenna radiating systems has been successfully demonstrated which can eliminate the need for combiners at higher power FM stations.11 Furthermore development of a “Gen-2” system12 that will multiplex the HD Radio data stream at the studio site, much as is done with composite analogue STLs, is expected to be introduced in the coming year. Low-level combining is preferred and has been shown to be cost effective at power levels up to an analogue 7 kw transmitter power output.

11See IBOC Space Diversity Testing, Talmadge Ball, Proceedings of NAB 2003 BEC; also see “Dual Antenna Report” Denny & Associates at http://www.nab.org/scitech/fccfilingattachmentb.pdf.

12Gen 2 refers to a planned evolution in HD system design that will permit multiplexing of all digital signals at the studio to achieve significant reductions in feeder link bandwidth requirements.

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Grundig Digital Radio manual Infrastructure Requirements

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.