Audio mode
Digital radio mode* (DAB, DAB
+ and DMB-Audio) Oper ation Fig. 12
DAB radio mode Some units are equipped with an additional
D
AB r
a
dio receiver. DAB is a digital broad-
casting standard for the terrestrial reception
of radio programs.
The DAB radio receiver supports the DAB,
DAB+ and DMB-Audio broadcasting stand-
ards.
In Europe, digital radio is transmitted via
Band III (174 MHz to 240 MHz) and the L
Band (1452 MHz to 1492 MHz) frequencies.
The frequencies of the two bands are referred
to as “channels” and one each has a suitable
channel name (e.g. 8A).
Several DAB stations are combined in a chan-
nel with the additional services available in a
station “ensemble”. The main view of DAB radio mode shows the
name of the c
hannel and the channel's inter-
national ID, which appears above the station
name in the centre of the display.
DAB is currently not available in all areas .
When in DAB radio mode in areas with no
DAB reception, it displays: .
DAB announcements
DAB announcements are additional DAB
services that are also broadcast on the radio
(e.g. News, sports news, weather, warnings,
etc.). Note
The channel name, an indication that appears
abov e the s
tation's name, varies depending
on the country, for example“FU-E”, but not
the channel's international ID, for example
“11B” ››› Fig. 12. Automatic station tracking
DAB programme tracking
Some D
AB s
t
ations are broadcast in different
regional ensembles.
If the current station is no longer available in
your location, the unit may also switch to a
corresponding partner station.
DAB programme tracking can be switched off
in DAB settings ›››
table on page 28, SFO since it is not always required; i.e. when the
v
ehic
l
e is passing through a tunnel, the loss
of reception is only momentary and in these
the automatic station switching is not re-
quired. The radio will be muted if reception is
too weak.
Change from DAB to FM
Under DAB setup, the unit can be configured
to switch to the FM ››› table on page 28,
FML frequency band when required for auto-
m atic
s
tation tracking.
If reception of the currently selected DAB sta-
tion is lost (e.g. no DAB available), the unit
attempts to find the station on the FM fre-
quency band and tune to it. Automatic sta-
tion tracking between frequency bands only
works if the DAB station and the FM station
transmit the same station identifier or the
DAB signal indicates a corresponding station
on the FM frequency band.
If the reception of the selected DAB station is
lost and the station cannot be found on the
FM frequency band, the radio will be muted.
Starting station update (UPDATE ) During the station update, the unit scans the
gr
oup
s
of stations currently available in the
location and saves their position to make it
easier to switch among available groups us-
ing the arrow buttons or
.
14
