PRINCIPLE OF OPERATION
Traffic message channel (TMC) stations
are broadcast on the FM waveband. TMC
is a feature that receives traffic alerts
which can be used to plan alternative
routes and avoid hold ups.
USING TMC
Press the TRAFFIC button to show the
traffic menu page.
Traffic announcement
Traffic announcement (TA) can be turned
on or off via this menu. If switched on a
TA
indicator is shown in the information
border of the status bar.
Stations which broadcast on the FM
waveband and carry traffic programme
(TP) information are identified by
TP
shown in the screen display. With TA
switched on the unit will respond to these
announcements and interrupt music
playback. After the announcement has
ended music playback will resume.
Ending traffic announcements
The unit will return to normal operation at
the end of each traffic announcement. To
end the announcement prematurely, press
the TRAFFIC button during the
announcement.
Using TMC messages
To review TMC messages, you may either
select a view which shows messages only
affecting your programmed route, or a view
which shows all messages received.
Select the required item to display a list of
TMC messages. This is only an overview
display which gives very basic information.
Select the message you require further
information on and another screen will be
displayed giving full message details on
incident location etc. TMC events can also
be shown on the map, if activated. See
Route options menu
(page 44).
68
Traffic Message Channel
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