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GMR 404/406 Owner’s Manual i
IntroductIon
This manual covers the features and operation of the GMR 404/406
marine radar when viewed on a Garmin marine network chartplotter.
Installing Your GMR 404/406
To install your GMR 404/406, refer to the GMR 404/406 Installation
Instructions included in this box. If you experience difculty
installing the radar, contact Garmin Product Support or an installation
professional in your area.
About This Manual
To get the most out of your GMR 404/406, take time to read this
manual and learn the operating procedures for your unit in detail. This
manual is organized into the following sections.
The Introduction section contains the Table of Contents, Product
Registration, and Software License Agreement.
The Basic Operation section describes the features and operation of
the GMR 404/406.
The Appendix contains specications, regulatory information, and
maintenance information. You can also nd warranty, European
Licensing Requirements, and FCC information in the Appendix.
An Index is provided at the end of the manual for reference.
IntroductIon > About thIs MAnuAl