Garmin GTM 20 with Lifetime Traffic Instructions

instructions

GTM

™

20

trafc receiver

GTM™ 20 Instructions ...................................1

Instructions relatives au GTM™ 20 ................6

© 2008 Garmin Ltd. or its subsidiaries

All rights reserved. Except as expressly provided herein, no
part of this manual may be reproduced, copied, transmitted,
disseminated, downloaded or stored in any storage medium,
for any purpose without the express prior written consent
of Garmin. Garmin hereby grants permission to download
a single copy of this manual onto a hard drive or other
electronic storage medium to be viewed and to print one copy
of this manual or of any revision hereto, provided that such
electronic or printed copy of this manual must contain the
complete text of this copyright notice and provided further
that any unauthorized commercial distribution of this manual
or any revision hereto is strictly prohibited.

Information in this document is subject to change without
notice. Garmin reserves the right to change or improve
its products and to make changes in the content without
obligation to notify any person or organization of such
changes or improvements. Visit the Garmin Web site
(www.garmin.com) for current updates and supplemental
information concerning the use and operation of this and
other Garmin products.

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

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.

GTM 20 Instructions 1

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 outlet in vehicle

Internal

antenna

To power connector on Garmin GPS

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.

2 GTM 20 Instructions

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

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.

GTM 20 Instructions 3