Table of Contents
Advertisement
DAB (DIGITAL AUDIO BROADCASTING)
About DAB
DAB (Digital Audio Broadcasting), also known as digital
radio, is a new way of radio broadcasting. DAB is
broadcast using digital signals instead of analog signals,
resulting in near CD-quality sound. Analog signals (i.e.
AM/FM) are susceptible to interference (i.e. distortion and
noise) caused by electrical equipment, weather conditions,
tall buildings, mountains, etc.; digital signals are not.
Thus, with DAB, there is virtually interference-free
reception and no hiss or crackle.
Another advantage of DAB is that a large amount of
information can be carried within the digital signal. DAB
is broadcast in blocks of data called ensembles (also
known as multiplexes). Several radio programs (called
services) can be broadcasted simultaneously in each
ensemble. This means that you can choose between
several radio programs within one frequency.
In addition to the audio signal, service information is also
broadcasted and displayed on this unit's front panel
display. Part of the service information is text data
information called DLS (Dynamic Label Segment). For
more information, see page 46.
42
DAB (DIGITAL AUDIO BROADCASTING)
Ensemble
Audio signal and
service information
With DAB, there is no need to remember channel
frequencies, either. All broadcasts are selected by simply
selecting the service name.
Notes
• Be sure to check the DAB coverage in your area – not all areas
are presently covered. For a list of country DAB statuses and
worldwide DAB frequencies, you can check WorldDAB online
at http://www.worlddab.org.
• The sound quality and service information are controlled by the
DAB broadcaster, not this unit. Not all DAB broadcasters
transmit PAD/SI information.
• DAB signals are broadcast in Band-III (174 – 240 MHz) and
L-Band (1.452 – 1.492 GHz). This unit is able to receive both
bands.
Service
Advertisement
Table of Contents
