CITROEN C4 Aircross 2013 Owner's Handbook Manual page 280

05
RADIO
RDS, AF, TP, PTY
What is RDS?
The Radio Data System (RDS) function on the FM waveband permits:
- automatic retuning to alternative frequencies carrying the same
station while travelling through different regions (if the transmitters
of this station cover the area through which you are travelling),
- temporary tuning to traffi c information announcements,
- display of the name of the station, etc...
Most FM stations use RDS.
These stations transmit non-audible data in addition to their programmes.
The data transmitted in this way allows you access to various functions,
mainly displaying of the name of the station, temporary tuning to
traffi c information announcements or automatic retuning to alternative
frequencies.
RDS allows you to continue listening to the same station automatically by
means of alternative frequencies. However, alternative frequencies may not
be provided throughout the country. Radio stations do not cover the whole
country, which explains the loss of reception of the station during a journey.
RDS alternative frequencies
Your radio automatically checks and selects the best frequency for the radio station
to which it is tuned (if the station broadcasts on several transmitters or frequencies).
The frequency of a radio station covers approximately 30 miles (50 km). The
change from one frequency to another explains the loss of reception during a
journey.
If the station to which you are listening does not have several frequencies in the
region in which you are currently located, you can deactivate automatic alternative
frequencies.
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Traffi c information function
The Traffic Programme (TP) function permits automatic and
temporary switching to an FM station broadcasting traffi c
information.
The radio station or the source that you are listening to at this point
is placed on hold.
Once the traffi c information has ended, the system switches back to
the radio station or the source that you were listening to initially.
Programme types
Some stations offer the option of listening to a themed type of
programme as a priority, selected from the list available below:
NEWS, AFFAIRS, INFOS, SPORT, EDUCATE, DRAMA, CULTURE,
SCIENCE, VARIED, POP M, ROCK M, EASY M, LIGHT M,
CLASSICS, OTHER M, WEATHER, FINANCE, CHILDREN,
SOCIAL, RELIGION, PHONE IN, TRAVEL, LEISURE, JAZZ,
COUNTRY, NATION M, OLDIES, FOLK M, DOCUMENT.