Radio Data System-Traffic Message Channel (RDS-TMC)
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The Radio Data System-Traffic Message Channel (RDS-TMC) is a broadcast for delivering traffic and travel information to the driver. The RDS-TMC data is typically coded using the 57 kHz ± 3 kHz subcarrier on FM broadcast.
The RDS-TMC system uses a decoder in the audio-navigation unit to decode the traffic information data. It is integrated directly into a navigation system.
The traffic information is displayed with the navigation route guidance. It is used to avoid traffic jams and accidents (see the Navigation Manual for more information).