Garmin GTM 10 FM Traffic Receiver, Traffic Message Channel (TMC)

The GTM 10 is a small FM-band traffic receiver that connects your car stereo and antenna, to provide real-time Traffic Message Channel (TMC) data to compatible Garmin GPS navigation products - which then depict, and identify problem areas on their moving-map displays.

This TMC data gives prompt, accurate notification of accidents, road construction, police, or emergency action, etc. So drivers can visually monitor traffic flow, and if necessary, select an alternate route. The TMC traffic alerting system works on an FM sideband signal which utilizes RDS (Radio Data Service) technology.

Digitized and coded real-time traffic broadcasts are received via a "silent" FM data channel - which means that drivers can still listen to music or news programming on their car radios, without interference from the incoming FM traffic data transmissions.

With the GTM 10, you see traffic developments in real-time, as they happen, so you can make the right decision sooner. This system will alert you when a traffic problem is on your route, and propose an alternate route to avoid the incident.