Garmin GTM 20 User manual

instructions

GTM

™

20

trafc receiver

GTM

™

20 Instructions ...................................1

Instructions relatives au GTM

™

20 ................6

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information concerning the use and operation of this and

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Garmin

®

and the Garmin logo are trademarks of Garmin Ltd.

or its subsidiaries, registered in the USA and other countries.

GTM

™

is a trademark of Garmin Ltd. or its subsidiaries.

These trademarks may not be used without the express

permission of Garmin.

October 2008

Part Number 190-00659-94 Rev. A

Printed in Taiwan

GTM 20 Instructions 1

GTM

™

20 Instructions

See the Important Safety and Product Information

guide in the GPS device box for product warnings

and other important information.

The Garmin

®

GTM 20 FM TMC Trafc

Receiver receives Trafc Message Channel

(TMC) information broadcast over the FM

radio data system. When a trafc message is

received, your Garmin GPS device can change

your route to avoid the trafc incident. Trafc

information is based on trafc data provided

with the permission of one or more third

parties. For coverage areas, refer to the Garmin

Web site at www.garmin.com/trafc.

To receive trafc information, the trafc

receiver must be connected to the GPS device

and to an external power source, and the trafc

receiver and GPS device must be in data range

of an FM station transmitting TMC data.

NOTE: Garmin is not responsible for the

accuracy of the trafc information.

2 GTM 20 Instructions

Connecting Your GTM 20

1. Remove the vehicle power cable from your

Garmin GPS device.

2. Connect the cable on the GTM 20 to the

power connector on your Garmin GPS

device.

3. Plug the other end into a power outlet in

your vehicle.

To power connector on Garmin GPS

To power outlet in vehicle

Internal

antenna

4. Route the cable so that it does not interfere

with vehicle operating controls.

NOTE: Heated (metalized) windshields

could degrade the performance of the trafc

receiver.

GTM 20 Instructions 3

Connecting an External Antenna

An external antenna may be included in the

product box to increase signal range. To

purchase an external antenna, go to

http://buy.garmin.com.

1. Connect the external antenna to the

GTM 20.

External antenna

connector

2. Use the attached suction cups to route

the external antenna on the windshield

vertically, if possible.

Before mounting the trafc receiver, see the Important

Safety and Product Information guide included with your

GPS device for information about laws pertaining to

windshield mounting.

4 GTM 20 Instructions

Testing the Trafc Receiver

Check the Map: Check the map on the GPS

device for trafc incidents or a trafc icon.

Refer to the owner’s manual.

Verify Signal Strength: If you are inside a

garage where radio signals cannot be received,

drive the vehicle outside.

Verify that you are in a service area: Check

for service from the pay service or free or

premium services.

Service and Subscription

Information

Depending on your region, your trafc receiver

receives data through either a premium service

or a free, public service. For information about

your trafc service subscription, see the product

packaging or the Trafc settings in the GPS

device. The subscription activates automatically

after your Garmin GPS device acquires satellite

signals while receiving trafc signals from the

service provider.

GTM 20 Instructions 5

You can add other FM TMC subscriptions at

any time. Check the Garmin Web site at

www.garmin.com/fmtrafc for other available

services.

Using Trafc Data with Your

Garmin GPS Device

The trafc receiver works with your Garmin

GPS device to show trafc ow and incident

information, and to enable routing around

trafc incidents. Although each GPS device

operates differently, they all provide similar

trafc information.

Register your Trafc Receiver

To register your trafc receiver, go to

http://my.garmin.com.

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For the latest free software updates

(excluding map data) throughout the life

of your Garmin products, visit the Garmin

Web site at www.garmin.com.

Garmin International, Inc.

1200 East 151

st

Street,

Olathe, Kansas 66062, USA

Garmin (Europe) Ltd.

Liberty House, Hounsdown Business Park,

Southampton, Hampshire, SO40 9RB UK

Garmin Corporation

No. 68, Jangshu 2

nd

Road,

Shijr, Taipei County, Taiwan

www.garmin.com

Part Number 190-00659-94 Rev. A

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