Instruction/ maintenance manual of the product GMR 20 Garmin
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GMR 20/40 Marine Radar Owner’ s Manual.
Garmin International, Inc. 1200 East 151 st Street, Olathe, Kansas 66062, U.S.A. T el. 913/397.8200 or 800/800.1020 Fax 913/397.8282 Garmin (Europe) Ltd. Unit 5, The Quadrangle Abbey Park Industrial Estate Romsey , SO51 9DL, U.K. T el. 44/0870.8501241 Fax 44/0870.
GMR 20/40 Owner ’s Manual i I NTRODUCTION About This Manual Congratulations, and thank you for choosing Garmin’ s GMR 20/40 Marine Radar . The addition of the GMR 20/40 Marine Radar to your Garmin Marine Network, enhances the capability of your system by adding graphical radar data to your Garmin Marine Network.
ii GMR 20/40 Owner ’s Manual I NTRODUCTION > T ABLE OF C ONTENTS Introduction ...........................................................................i About This Manual ................................................................... i T erminology used Throughout this Manual .
GMR 20/40 Owner ’s Manual 1 GMR 20/40 O PERA TION Radar Overview The Garmin GMR 20/40 Radar Scanner transmits a narrow beam of microwave energy in a rotating 360° pattern. When the transmitted energy contacts a tar get, some of that energy is reflected and returned to the scanner .
2 GMR 20/40 Owner ’s Manual In the Status Bar at the top of the Radar page, the message “Radar W arming Up” is displayed with a countdown to Standby Mode. The countdown to Standby Mode is also displayed in the middle of the radar display . When the countdown reaches zero, the message “Hold FCTN to transmit” is displayed.
GMR 20/40 Owner ’s Manual 3 Radar Page Layout This section describes the features of the Radar page and how its features are displayed. By default, the Radar page displays a Status Bar along the top, user configurable Digital Navigation Data down the right side, a Heading Line, and Range Rings.
4 GMR 20/40 Owner ’s Manual Range Rings The Range Rings are used as an aid to quickly determine distance to a target. In the lower right corner of the display are two scales. The upper scale is the current zoom scale. This scale is changed using the RANGE keys.
GMR 20/40 Owner ’s Manual 5 The Radar Configuration Page The Radar Configuration page is used to change the look of the Radar page. Please refer to the GPSMAP 3000 series Owner ’ s Manual for information on “Configuring the Main Pages.” T o display the Radar Configuration page: Press and hold the DA T ACONFIG key .
6 GMR 20/40 Owner ’s Manual GMR 20/40 O PERA TION > T HE R ADAR A DJUSTMENT M ENU continued T o change a Radar Adjustment Menu setting: 1. Press the ADJ key to display the Adjustment Menu. 2. Using the ARROW KEYP AD or DA T A ENTR Y keys, select an option.
GMR 20/40 Owner ’s Manual 7 GMR 20/40 O PERA TION > T HE R ADAR A DJUSTMENT M ENU T o change the Sea Clutter setting: 1. Using the ARROW KEYP AD, move the slider to a preset or other position. 2. Press the ENTER key to accept the change. The preset positions can also be selected using the Soft Key options.
8 GMR 20/40 Owner ’s Manual GMR 20/40 O PERA TION > T HE R ADAR A DJUSTMENT M ENU Zoom When a Zoom level is selected, a box showing a zoomed portion of the screen is displayed. When Move is selected, the ARROW KEYP AD can be used to move the box around the screen.
GMR 20/40 Owner ’s Manual 9 GMR 20/40 O PERA TION > T HE R ADAR A DJUSTMENT M ENU T rails T rails are history trails that show movement of a target. When T rails is On, all returns on the display leave a history trail. The Trails setting determines the length of the trail.
10 GMR 20/40 Owner ’s Manual GMR 20/40 O PERA TION > T HE R ADAR A DJUSTMENT M ENU T o Define a Guard Zone: 1. Using the ARROW KEYP AD, highlight Show Guard Zone 1/2 and press the ENTER key . 2. Using the ARROW KEYP AD, highlight Adjust and press the ENTER key .
GMR 20/40 Owner ’s Manual 1 1 GMR 20/40 O PERA TION > T HE R ADAR A DJUSTMENT M ENU T o move the center location of the VRM: 1. Using the ARROW KEYP AD, highlight Move and press the ENTER key . 2. Using the ARROW KEYP AD, move the center point of the VRM to the desired location.
GMR 20/40 O PERA TION > T HE R ADAR A DJUSTMENT M ENU While a target is being designated, a box is placed around the tar get. When MARP A begins tracking the target, the box is replaced with the appropriate symbol.
GMR 20/40 Owner ’s Manual 13 GMR 20/40 O PERA TION > T HE R ADAR A DJUSTMENT M ENU MARP A Setup Menu T o change a MARP A field option: 1. Using the ARROW KEYP AD , highlight the desired fi eld and press the ENTER key to activate the field selections.
14 GMR 20/40 Owner ’s Manual GMR 20/40 O PERA TION > T HE R ADAR A DJUSTMENT M ENU Map Cursor On/Off The Map Cursor On/Off setting turns the Map Page Cursor On or Of f when operating in Split Screen Mode or when using two MFDs. T o turn the Map Cursor On/Off: Using the ARROW KEYP AD , highlight Map Cursor On/Off and press the ENTER key .
GMR 20/40 Owner ’s Manual 15 GMR 20/40 O PERA TION > T HE R ADAR A DJUSTMENT M ENU Front of Boat Offset— this setting is used to correct for any alignment error that may have occurred during installation of the scanner . The scanner is directional.
16 GMR 20/40 Owner ’s Manual GMR 20/40 O PERA TION > T HE R ADAR A DJUSTMENT M ENU Center Offset— has three settings: Center , Look Ahead, and Auto Shift. Center places your current location in the center of the display . Look Ahead shifts your current location toward the bottom of the display , allowing you to view an area farther ahead.
GMR 20/40 Owner ’s Manual 17 T o select an AFC Mode: 1. Using the ARROW KEYP AD , highlight the AFC Mode field and press the ENTER key . 2. Using the ARROW KEYP AD , highlight the desired selection and press the ENTER key . T o manually adjust the scanner frequency: 1.
18 GMR 20/40 Owner ’s Manual Map page with radar overlay Radar page There are several Radar Options available on the Map page. These options do affect operation of the radar and the Radar page. T o display the Radar Options: 1. Press the ADJ key . 2.
GMR 20/40 Owner ’s Manual 19 A PPENDIX European License Requirements Austria I Luxembourg I Belgium G The Netherlands I Czech Republic I Poland G Denmark G Portugal G Estonia * Slovakia * Finland I .
20 GMR 20/40 Owner ’s Manual Specifications Unit Dimensions: 28” (710 mm) D x 8” (205 mm) H. Radar Scanner W eight: Unit 26 lbs; cable 8.35 lbs. Range Scales (Range Rings): GMR 40 — 1/8 nm (1/32 nm) to 36 nm (9 nm) GMR 20 — 1/8 nm (1/32 nm) to 24 nm (6 nm).
GMR 20/40 Owner ’s Manual 21 FCC Compliance The GM R 20 /40 com pli es w ith Pa rt 8 0 o f th e F CC r ule s. I t h as rec eiv ed a gr ant of equi pme nt auth ori zati on, iss ued und er the aut hor ity of the FCC .
22 GMR 20/40 Owner ’s Manual Software License Agreement BY USING THE GMR 20/40, YOU AGREE T O BE BOUND BY THE TERMS AND CONDITIONS OF THE FOLLOWING SOFTW ARE LICENSE AGREEMENT .
GMR 20/40 Owner ’s Manual 23 Some states do not allow the exclusion of incidental or consequential damages, so the above limitations may not apply to you. Garmin retains the exclusive right to repair or replace the unit or software or offer a full refund of the purchase price at its sole discretion.
24 GMR 20/40 Owner ’s Manual W arning and Cautions CAUTION: Use the GMR 20/40 at your own risk. T o reduce the risk of unsafe operation, carefully review and understand all aspects of this Owner ’ s Manual, and thoroughly practice operation using the simulator Mode prior to actual use.
GMR 20/40 Owner ’s Manual 25 I NDEX Index A About This Manual i Adjustment 5 Adjustment Menu 5 Advanced T ab 16 AFC Mode 16, 17 B Background 16 Background color 15 Bearing Line 16 Bearing Reference 15, 16 Begin T ransmitting 17 Begin T ransmitting.
26 GMR 20/40 Owner ’s Manual I NDEX V V ariable Range Marker 10 V ector Length 13 V elocity Reference 13 VRM/EBL 5, 10 W W arming Up 2 W arning and Cautions 24 W ARRANTY 22 W aypoints 16 Z Zoom 5, 8.
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For the latest fr ee software updates (excluding map data) throughout the life of your Garmin products , visit the Garmin W eb site at www .garmin.com. © Copyright 2005 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151 st Street, Olathe, Kansas 66062, U.
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