Dab; Overview Of Dab; Basic Operations Of Dab - Sony MDX-C800REC Operating Instructions Manual

DAB

Overview of DAB

DAB (Digital Audio Broadcasting) is a new
multimedia broadcasting system that
transmits audio programmes with a quality
comparable to that of CDs. This is made
possible by the use of a microcomputer in the
DAB tuner which uses the radio signals sent
from multiple aerials and multi-path signals
(reflected radio waves) to boost the strength of
the main signal. This makes DAB almost
immune to radio interference even in a moving
object such as a car.
Each DAB station bundles radio programmes
(services) into an ensemble which it then
broadcasts. Each service contains one or more
components. All ensembles, services, and
components are identified by name, so you can
access any of them without having to know
their frequencies.
DAB programme
Notes
• The DAB system is actually in a testing phase.
This means some services have not been
sufficiently defined or are presently being tested.
At present, such services are not supported by
the optional DAB tuner unit XT-100DAB.
• DAB programmes are broadcast in Band-III (174
to 240 MHz) and L-Band (1,452 to 1,492 MHz),
with each band divided into channels (41 in
Band-III and 23 in L-Band). One ensemble is
broadcast per channel by each DAB station.
36
Ensemble
Service
Service
Service
Component
Component
Component

Basic operations of DAB

Searching for the ensemble and
service
— Automatic Tuning
1
Press (SOURCE) repeatedly to select the
radio.
2
Press (MODE) repeatedly to select
"DAB."
3
Press and hold either side of (SEEK/AMS)
until "Seek +" or "Seek –" appears.
4
Press either side of (SEEK/AMS) to search
the desired service.
Selecting the ensemble
— Manual Tuning
If you know the channel number of ensemble,
follow the procedure below to tune in.
1
Press (SOURCE) repeatedly to select the
radio.
2
Press (MODE) repeatedly to select
"DAB."
3
Press either side of (DISC/PRST) until
"Ch. XXX" appears.