Sony CDX-M670 (XT-XM1), Operation Instructions Manual

Page: 21 / 254

21
Setting the clock
automatically
— CT
The CT (Clock Time) data from the RDS
transmission sets the clock automatically.
1
During radio reception, press
(MENU)
,
then press M or m repeatedly until “CT
off” appears.
2
Press
,
repeatedly until “CT on”
appears.
The clock is set.
3
Press
(ENTER)
to return to the normal
display.
To cancel the CT function, select “CT off” in step
2.
Notes
• The CT function may not work even though an RDS
station is being received.
• There might be a difference between the time set by
the CT function and the actual time.
DAB (optional)
You can connect an optional DAB tuner to this
unit.
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.
Notes
• The DAB system is still in a testing phase. 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.
DAB programme
Ensemble
Service
Service
Service
Component
Component
Component