Pioneer DEH-P90DAB Manuel d'utilisateur télécharger pdf (Page 36)

What is DAB?

DAB stands for Digital Audio Broadcasting. The benefits of DAB are as follows:

• High sound quality (near CD quality is normal, although this may be reduced on some

services, in order to allow more services to be broadcast).

• Interference free reception.

Note:

• Test broadcasts may be performed by some broadcast stations.

Outline

The way services are transmitted with DAB is very different to that used on MW/LW or

FM. With DAB, services are bundled into groups, normally called Ensembles or

Multiplexes. An ensemble would typically contain about 6 services, though this may vary

from 1 up to 10 or more services at any one time. Several different ensembles may be

available in any area.

Some Individual services on an ensemble may be further subdivided into service compo-

nents. The main service is called the primary service component, and the subsidiary ser-

vices are called secondary service components. This unique feature of DAB has many pos-

sible applications. A typical one would be for a sports service called SPORT RADIO for

example, to add several secondary service components for Saturday afternoon, with each

service component offering coverage of a different football match or sports event. In this

way SPORT RADIO could offer the listener the choice of several events simultaneously

rather than being forced to select one event only.

Ensemble Service Primary Service Component

Service Primary Service Component

Secondary Service Component

7 About Service Components

Service Components include Audio and Data. Data Service reception is not possible with

this unit. (In this Manual, Service refers to the regular Audio Service.)

Using the DAB Functions

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 147 148

Pas de commentaire

Pioneer DEH-P90DAB Manuel d'utilisateur Page 36