Sony CDX-M670 RU: Setting the clock DAB (optional) automatically Overview of DAB

Setting the clock

DAB (optional)

automatically

You can connect an optional DAB tuner to this

— CT

unit.

The CT (Clock Time) data from the RDS

transmission sets the clock automatically.

1 During radio reception, press (MENU),

Overview of DAB

then press M or m repeatedly until “CT

off” appears.

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

2 Press , repeatedly until “CT on”

DAB almost immune to radio interference even

appears.

in a moving object such as a car.

The clock is set.

3 Press (ENTER) to return to the normal

Each DAB station bundles radio programmes

display.

(services) into an ensemble which it then

broadcasts. Each service contains one or more

To cancel the CT function, select “CT

off” in step

components. All ensembles, services, and

2.

components are identified by name, so you can

access any of them without having to know their

Notes

frequencies.

• The CT function may not work even though an RDS

station is being received.

• There might be a difference between the time set by

DAB programme

the CT function and the actual time.

Ensemble

Service

Service

Service

Component

Component

Component

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.

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