Mio C210 - Manual (Page 49)

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4.7 TMC (Traffic Message Channel)
MioMap can provide you with even better routes if Traffic Message Channel (TMC)
information is available. The TMC is a specific application of the FM Radio Data
System (RDS) used for broadcasting real-time traffic and weather information.
Note: TMC is not a global service. It may not be available in your country or region.
Ask your local dealer for coverage details.
You need a TMC receiver attached to your PNA to receive TMC information.
MioMap automatically takes into account the TMC information received. You do not
need to set anything in the program. The receiver will automatically search the FM
radio stations for TMC data, and the decoded information will immediately be used in
route planning. The moment MioMap receives traffic information that may affect your
route, the program will warn you that it is recalculating the route, and navigation will
continue with a new route that is optimal considering the most up-to-date traffic
conditions.
The TMC subsystem can be started from the GPS Data screen (Page 29) by tapping
the TMC button.
4.7.1 List of TMC messages
The main screen of the TMC section is the list of valid TMC messages ordered by
their distance from your current location.