The Globalsat BTT-100 GPS Receiver combines Bluetooth GPS with an RDS TMC receiver so you can avoid nasty traffic jams as they develop. TMC (Traffic Message Channel) technology uses vanilla FM radio frequencies for transmission, is subscription free and popular across Europe, so we can expect to see more TMC enabled products launch as people realise that evading snarl ups is a marvelous thing to do.
The Globalsat BTT-100 is Bluetooth GPS receiver with complete RDS receiver for easy integration of TMC traffic information into your navigation system or PDA/embedded system. The Traffic Message Channel (TMC) uses the FM Radio Data System (RDS) to broadcast real-time information of traffic, weather, etc. A TMC-enabled navigation system can offer dynamic route guidance – alerting the driver of traffic events on the planned route.