Pure DRX-601 series tuners - Manual (Page 10)

8
Guide to Digital Radio
This section provides a brief guide to digital radio (DAB), explains how the features of your DRX-602ES provide access to it, and provides some
useful addresses for finding out more.
Your DRX-602ES enables you to receive and listen to Digital Audio Broadcast (DAB) digital radio programmes. DAB uses digital transmission rather
than traditional analogue transmission, providing near CD-quality audio with virtually interference-free reception. DAB also enables broadcasters to
transmit additional data along with the audio including other audio channels, text and in the future, perhaps computer data and images.
DAB digital radio is broadcast as groups of data called multiplexes or ensembles . Each multiplex can contain a number of services (stations) and
each service contains a primary service and can also contain secondary services as illustrated in the following diagram. Each multiplex is
transmitted at a set frequency and is received by your DRX-602ES for decoding. Your DRX-602ES can receive multiplexes broadcast on all DAB
frequencies (Band III and L-Band). The number of multiplexes and radio stations you receive, will vary depending on your location.
With DAB, radio stations have labels (names) which are used to identify them. Instead of needing to know a particular frequency to listen to your
favourite broadcast you can simply select the station name. Secondary services and additional data such as text containing programme or multiplex
information are also easily accessed using your DRX-602ES.
Useful addresses
The following addresses provide additional useful information about digital radio including coverage, available services and usage tips:
WorldDAB
web: www.worlddab.org
tel: +44 (0)20 7288 4642
fax: +44 (0)20 7288 4643
DAB Signal
Multiplex
National DAB
Primary DAB Services
Main higher bandwidth services
e.g music, speech
Secondary DAB Services
Lower bandwidth services
e.g. news, text information, speech