GTM 20 FM TMC Traffic Receiver
Discontinued. Replaced by the Garmin GTM 20 Traffic Receiver with Lifetime Traffic >>
tie-ups can't always be prevented. But with Garmin's GTM 20, they
can often be avoided.
The GTM 20 is an integrated FM TMC (Traffic Message Channel)
traffic receiver, antenna and cigarette lighter adapter. It
receives digital information, where available, on traffic
and road construction tie-ups that your compatible Garmin unit
uses to offer an alternate route. TMC data, available in a fast-growing
number of cities throughout North America and Europe, gives prompt,
accurate notification of accidents, road construction, police,
or emergency action, etc. - so you can visually monitor traffic
flow and, if necessary, avoid traffic tie-ups.
Real-time Traffic Data
In most areas, depending on the service provider, TMC traffic
broadcasts are continuous - there's no waiting for scheduled traffic
news updates or random alerts. With the GTM 20, you see traffic
developments in real-time, as they happen, so you can make the
right decision sooner. The system alerts you when a traffic problem
is on your route and proposes an alternate route to avoid the
incident. Because traffic broadcasts are received via a "silent"
FM data channel, you can still listen to music or news programming
on your car radio without interference from incoming FM traffic
data transmissions. The GTM 20 is a portable, all-in-one antenna,
traffic receiver, and 12-volt cigarette adapter that does not
require professional installation.
Traffic services are available only in select cities where coverage
exists. A subscription may be required to enable traffic capability.
most of Western Europe, basic TMC data is a free public service,
accessible through a number of providers. In France and the UK,
premium service requires a subscription. In the U.S., a subscription
to the Total Traffic Network is required.
FM TMC Traffic Service pages to extend your current service
or purchase a service plan for an additional area. For
more information on real-time traffic information for your Garmin,
see Garmin's Traffic
Portable FM-band traffic receiver, antenna and cigarette
Plug-and-play; no installation required
Provides real-time traffic information to compatible Garmin
GPS car navigators
Helps users avoid traffic tie-ups
Graphical map symbol reference