Mp3; Af, Alternative Frequency; Pty, Programme Type; Rds Time Signal - Opel CD 70 NAVI User Manual

MP3

A method for compressing audio data
developed by the German Fraunhofer
Institute. The compression allows a
reduction of the data quantities by about
10% of its original size without any audible
loss in quality (with a bit rate of 128 kbit/s).
If lower bit rates are used when encrypting
the CD audio data on MP3 smaller files are
possible, but this will result in quality losses.
RDS (Radio Data System)
Radio Data System offers the possibility
of transmitting inaudible digital data
alongside voice and music programmes
via the FM signal.
The following section contains the most
important information that is transmitted
with the RDS signal:
PS, Programme Service Name
Display of programme name. Some
stations display additional information, like
the current music title, current news, etc.

AF, Alternative Frequency

An RDS programme is transmitted on
several frequencies simultaneously.
During the journey, the Infotainment
System automatically searches for the
best receivable frequency.

PTY, Programme Type

Many RDS stations transmit a PTY code
that indicates the type of programme
being broadcast (e.g. News). The PTY
code enables selection of the station
according to programme type.
REG, Regional programmes
Some RDS stations transmit different
regional programmes over different
frequencies at certain times. You can
continue to listen to the set regional
programme even when travelling through
the reception area of the next regional
programme.
TP, Traffic Programme
Traffic Programme. Traffic stations are
VHF RDS stations which transmit traffic
information.
A special ID is transmitted during a traffic
announcement (the TA bit). When this ID is
received, the Infotainment System switches
to traffic announcement, even during CD/
MP3 playback or mute.
TMC, Traffic Message Channel
Some RDS stations transmit digital
information about the current traffic
situation in addition to traffic
announcements.
The traffic information received can
be recalled in the Info menu. Road
obstructions on your route are evaluated
for dynamic guidance.

RDS time signal

The vehicle clock can be synchronised to
the time transmitted via RDS, see vehicle
operating instructions.
EON, Enhanced Other Networks
With EON you will hear traffic reports,
even if the set station does not transmit
its own traffic information. When a traffic
announcement is made, the unit switches
to a traffic information station linked to
EON.
SDVC
Speed-dependent volume control. To
compensate for outside and road noises
the volume of the Infotainment System can
be adjusted in accordance with the speed
of the vehicle.
Software update
A software update allows the Infotainment
system to be equipped with new and
improved functions.
You will see a corresponding message if
a software update is available for your
Infotainment System.
TA Volume
Traffic announcement volume
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