Garmin GMR 404, GMR 406 User Manual

GMR 404/406

Owner’s Manual

© 2006, 2007 Garmin Ltd. or its subsidiaries

Garmin International, Inc.
1200 East 151st Street,
Olathe, Kansas 66062, USA
Tel. [phone] or [phone]
Fax [phone]

All rights reserved. Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted, disseminated,
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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®, GPSMAP®, AutoLocate®, TracBack®, BlueChart®, and MapSource® are registered trademarks of Garmin Ltd. or its subsidiaries and may not be used without
the express permission of Garmin.

Garmin (Europe) Ltd.
Unit 5, The Quadrangle,
Abbey Park Industrial Estate,
Romsey, SO51 9DL, UK
Tel. [phone] (outside the UK)
0808 2380000 (within the UK)
Fax [phone]

Garmin Corporation
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January 2007 Part Number

190-00669-00 Rev. B Printed in Taiwan

IntroductIon > About thIs MAnuAl

IntroductIon

This manual covers the features and operation of the GMR 404/406
marine radar when viewed on a Garmin marine network chartplotter.

The Appendix contains specications, 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.

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 difculty

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.

GMR 404/406 Owner’s Manual i

IntroductIon > tAble of contents

table of contents

Introduction ...........................................................................i

Installing Your GMR 404/406 ................................................... i

About This Manual ................................................................... i

Product Registration .............................................................. iii

Contact Garmin .............................................................................. iii

Software License Agreement ................................................ iii

Warnings ................................................................................. iv

Important Information ............................................................ iv

Basic Operation ...................................................................1

Understanding Radar .............................................................. 1

Understanding the Radar Display ................................................... 2

Radar Page ............................................................................... 3

Conguring the Radar Page ............................................................ 3

Using the Radar Adjustment Menu ................................................ 4

Map Page Radar Overlay ........................................................ 9

Radar Tab ............................................................................... 10

General Sub Tab............................................................................ 10

Display Sub Tab ............................................................................ 11

MARPA Sub Tab........................................................................... 12

Advanced Sub Tab ........................................................................ 13

Appendix ............................................................................14

Specications ........................................................................ 14

4 ft Open-Array Antenna .............................................................. 14

6 ft Open-Array Antenna .............................................................. 14

Open-Array Scanner .....................................................................14

European License Requirements ........................................ 15

Limited Warranty ................................................................... 16

FCC Compliance .................................................................... 17

Declaration of Conformity (DoC) ......................................... 17

Index ...................................................................................18

ii GMR 404/406 Owner’s Manual

IntroductIon > Product regIstrAtIon And softwAre lIcense AgreeMent

Product Registration

Help us better support you by completing our online registration
today! Connect to our Web site at www.garmin.com/registration/.

Use this area to record the serial number (8-digit number located
on the back of the GMR 404/406 pedestal door) in case your
GMR 404/406 needs service. Keep the original sales receipt, or a
photocopy, in a safe place.

Serial Number: ___ ___ ___ ___ ___ ___ ___ __

Contact Garmin

Contact Garmin if you have any questions while using your
GMR 404/406. In the USA contact Garmin Product Support by
phone: [phone] or 800/800.1020, Monday–Friday, 8 AM–5 PM
Central Time; or go to www.garmin.com/support/, and click Product
Support.

Software License Agreement

BY USING THE GMR 404/406, YOU AGREE TO BE BOUND BY THE
TERMS AND CONDITIONS OF THE FOLLOWING SOFTWARE LICENSE
AGREEMENT. PLEASE READ THIS AGREEMENT CAREFULLY.

Garmin grants you a limited license to use the software embedded in this device
(the “Software”) in binary executable form in the normal operation of the
product. Title, ownership rights, and intellectual property rights in and to the
Software remain in Garmin.

You acknowledge that the Software is the property of Garmin and is protected
under the United States of America copyright laws and international copyright
treaties. You further acknowledge that the structure, organization, and code
of the Software are valuable trade secrets of Garmin and that the Software in
source code form remains a valuable trade secret of Garmin. You agree not to
decompile, disassemble, modify, reverse assemble, reverse engineer, or reduce
to human readable form the Software or any part thereof or create any derivative
works based on the Software. You agree not to export or re-export the Software
to any country in violation of the export control laws of the United States of
America.

In Europe, contact Garmin (Europe) Ltd. at +44 (0) 870.8501241
(outside the UK.) or 0808 2380000 (UK only).

GMR 404/406 Owner’s Manual iii

IntroductIon > wArnIngs And IMPortAnt InforMAtIon

Warnings

Failure to avoid the following potentially hazardous situations could
result in an accident or collision resulting in death or serious injury.

• The radar scanner transmits electromagnetic energy. Ensure that the
scanner has been installed according to the recommendations given
in this guide, and that all personnel are clear of the scanner before
switching to transmit mode.

• For protection from lightning, this installation must conform to NFPA
code, section 302. The installation of a lightning protective mast is
recommended, and the scanner must be connected to water ground
using an 8 gauge copper cable.

WARNING: This product, its packaging, and its components contain chemicals known to the State of California to cause cancer, birth defects, or reproductive harm.
This Notice is provided in accordance with California’s Proposition 65. See www.garmin.com/prop65 for more information.

• Use the GMR 404/406 at your own risk. To reduce the risk of
unsafe operation, carefully review and understand all aspects
of this Installation Manual, and thoroughly practice operation
using the simulator mode prior to actual use. When in actual
use, carefully compare indications from the GMR 404/406 to all
available navigation sources, including the information from other
NAVAIDs, visual sightings, charts, etc. For safety, always resolve any
discrepancies before continuing navigation.

• Use the GMR 404/406 only as a navigational aid. Do not attempt to
use the GMR 404/406 for any purpose requiring precise measurement
of direction, distance, location, or topography.

Important Information

The California Electronic Waste Recycling Act of 2003 requires the recycling of certain electronics. For more information on the applicability to this product, see

www.erecycle.org.

iv GMR 404/406 Owner’s Manual

bAsIc oPerAtIon > understAndIng rAdAr

basIc operatIon

This section covers the features and operation of the GMR 404/406.

Understanding Radar

The GMR 404/406 transmits a narrow beam of microwave energy
in a rotating 360° pattern. When the transmitted energy contacts a

target, some of that energy is reected and returned to the scanner.

The scanner collects the returned energy to process and display.
Your GMR 404/406 is operated and adjusted using controls on your
Garmin Marine Network chartplotter. You can view radar data on the
Radar Page or as an overlay on the Map Page. All radar controls are
accessible from both pages.

When you turn on the radar, the status bar shows the message “Radar
Warming Up” with a countdown to Standby Mode. The countdown
also appears in the middle of the Radar Page. When the countdown
reaches 0 (zero), the “Hold FCTN to transmit” message appears.

As a safety feature, the radar enters standby mode after it warms
up. This gives the operator an opportunity to verify that the area
around the scanner is clear before beginning radar transmission. It is
important to remember that the microwave energy transmitted by the
scanner can potentially be dangerous.

When the area surrounding the scanner is clear, press and hold
FCTN. The message “Do you want to begin radar transmission?” is
shown. Select Yes, and then press ENTER.

CAUTION: The GMR 404/406 transmits microwave energy that

has the potential to be harmful to humans and animals. Before
beginning radar transmission, verify that the area around the radar
is clear. The radar transmits a beam approximately 12° above and
below a line extending horizontally from the center of the scanner.
Avoid looking directly at the scanner, because the eyes are the
most susceptible part of the body.

GMR 404/406 Owner’s Manual 1

bAsIc oPerAtIon > understAndIng rAdAr

Before transmission begins, the message “Spinning Up” is shown
while the radar antenna reaches nominal rotation speed. After the
message disappears, the radar begins painting an image.

Using Range Rings

Use the Range Rings to quickly determine the distance to a target.
The lower-right corner of the screen contains two scales. The top
scale value represents the distance from the center of the radar display

Understanding the Radar Display

The Radar Page shows a status bar along the top, user-congurable

digital navigation data down the right side, a Heading Line, and
Range Rings. Soft keys that allow quick access to radar functions and
setting changes appear along the bottom of the page.

Heading line

Range

rings

Soft

keys

to the outermost complete ring. The bottom scale represents the ring
separation or the distance between the Range Rings. Use the RANGE
keys to zoom in or out. The tick marks on the Range Rings are
arranged with major tick marks at 30 degree increments and minor

tick marks every ve degrees. The tick marks can help in quickly

determining the azimuth to a target.

3/4 nm

1/2 nm

1/4 nm

Heading Line

Zoom scale

Ring separation

The Heading Line is shown from your current position along the path
of your current heading.

2 GMR 404/406 Owner’s Manual