Instruction/ maintenance manual of the product GMR 21 Garmin
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Owner’ s Manual marine radar GMR 21/41.
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 21/41 Owner ’s Manual i I NTRODUCTION About This Manual Thank you for choosing Garmin’ s GMR 21/41 marine radar . The addition of the GMR 21/41 marine radar to your Garmin Marine Network, enhances the capability of your system by adding graphical radar data to your Garmin chartplotter .
ii GMR 21/41 Owner ’s Manual I NTRODUCTION > T ABLE OF C ONTENTS Introduction ...........................................................................i About This Manual ................................................................... i T erminology used Throughout this Manual .
GMR 21/41 Owner ’s Manual 1 GMR 21/41 O PERA TION Radar Overview The Garmin GMR 21/41 transmits a narrow beam of microwave energy in a rotating 360° pattern. When the transmitted energy contacts a target, some of that ener gy is reflected and returned to the scanner .
2 GMR 21/41 Owner ’s Manual When the scanner is powered on, the Status Bar at the top of the Radar Page, shows the message “Radar W arming Up” with a countdown to Standby Mode. The countdown is also displayed in the middle of the Radar Page. When the countdown reaches zero, the message changes to “Hold FCTN to transmit.
GMR 21/41 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 21/41 Owner ’s Manual Range Rings The Range Rings help to quickly determine the 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 21/41 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 about “Configuring the Main Pages.” T o display the Radar Configuration Page: Press and hold DA T ACONFIG .
6 GMR 21/41 Owner ’s Manual GMR 21/41 O PERA TION > T HE R ADAR A DJUSTMENT M ENU T o change a Radar Adjustment Menu setting: 1. Press ADJ/MENU to display the Adjustment Menu. 2. Use the Rocker or Data Entry keys to select an option. Press ENTER to display the adjustment for that selection.
GMR 21/41 Owner ’s Manual 7 GMR 21/41 O PERA TION > T HE R ADAR A DJUSTMENT M ENU T o change the Sea Clutter setting: 1. Use the Rocker to move the slider to a preset or other position. 2. Press ENTER to accept the change. The preset positions can also be selected using the soft key options.
8 GMR 21/41 Owner ’s Manual GMR 21/41 O PERA TION > T HE R ADAR A DJUSTMENT M ENU Zoom When a Zoom level is selected, a window showing a zoomed portion of the screen appears and a selection box is shown. The selection box can be moved to see different areas.
GMR 21/41 Owner ’s Manual 9 GMR 21/41 O PERA TION > T HE R ADAR A DJUSTMENT M ENU T rails When the T rails function is on, all returns on the display leave a history trail. The T rails setting determines the length of the history trail. The T rails setting has four presets: Off , Short , Medium , and Long .
10 GMR 21/41 Owner ’s Manual GMR 21/41 O PERA TION > T HE R ADAR A DJUSTMENT M ENU T o Define a Guard Zone: 1. Use th e Rocker to highlight Show Guard Zone 1 or 2, and press ENTER . 2. Use the Rocker to highlight Adjust and press ENTER . 3. Using the Rocker , define the area on the Radar Page.
GMR 21/41 Owner ’s Manual 1 1 GMR 21/41 O PERA TION > T HE R ADAR A DJUSTMENT M ENU T o move the center location of the VRM: 1. Use the Rocker to highlight Move and press ENTER . 2. Using the Rocker , move the center point of the VRM to the selected location.
GMR 21/41 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. Acquiring T arget T racking T arget T o display the MARP A List: Use the Rocker t o highlight MARP A List and press ENTER .
GMR 21/41 Owner ’s Manual 13 GMR 21/41 O PERA TION > T HE R ADAR A DJUSTMENT M ENU MARP A Setup Menu T o change a MARP A field option: 1. Use the Rocker to highlight the desired field and press ENTER to activate the field selections. 2. Use the Rocker to highlight the desired selection.
14 GMR 21/41 Owner ’s Manual GMR 21/41 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 chartplotters. T o turn the Map Cursor On or Off: Use the Rocker to highlight Map Cursor On/Off and press ENTE R .
GMR 21/41 Owner ’s Manual 15 GMR 21/41 O PERA TION > T HE R ADAR A DJUSTMENT M ENU Timed T ransmit— is used to save power , likely while at anchor . When T imed T ransmit is On , the radar refers to the settings in T imed T ransmit XMIT T ime and T imed T ransmit STBY T ime.
16 GMR 21/41 Owner ’s Manual GMR 21/41 O PERA TION > T HE R ADAR A DJUSTMENT M ENU Rings— is used to turn the radar Range Rings On or Off. Background— is used to select a background color for the Radar Page. The options are Black, Blue, and White.
GMR 21/41 Owner ’s Manual 17 T o select an AFC mode: 1. Use the Rocker to highlight the AFC Mode field, and press ENTER . 2. Use the Rocker to highlight the selection, and press ENTER . T o manually adjust the scanner frequency: 1. Use the Rocker to highlight the Freq button, and press ENTER .
18 GMR 21/41 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 ADJ/MENU . 2. Use the Rocker to highlight Radar Options, and press ENTER .
GMR 21/41 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 21/41 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) Power Output: GMR 21: 2 kW , GMR 41: 4kW Power Input Sour ce: 10–35 VDC, 28W .
GMR 21/41 Owner ’s Manual 21 FCC Compliance The GM R 21 /41 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 21/41 Owner ’s Manual Software License Agreement BY USING THE GMR 21/41, YOU AGREE T O BE BOUND BY THE TERMS AND CONDITIONS OF THE FOLLOWING SOFTW ARE LICENSE AGREEMENT .
GMR 21/41 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 21/41 Owner ’s Manual A PPENDIX > W ARNINGS AND C AUTIONS Failure to avoid the following potentially hazardous situations could result in an accident or collision resulting in death or serious injury . W ARNING: The radar scanner transmits electromagnetic energy .
GMR 21/41 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 21/41 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 ARRANTY 22 W aypoints 16 Z Zoom 5, 8 Zoom level 8 Zoom Scale .
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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 2006 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151 st Street, Olathe, Kansas 66062, U.
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If you have not bought Garmin GMR 21 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Garmin GMR 21 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Garmin GMR 21 you will learn all the available features of the product, as well as information on its operation. The information that you get Garmin GMR 21 will certainly help you make a decision on the purchase.
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However, one of the most important roles played by the user manual is to help in solving problems with Garmin GMR 21. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Garmin GMR 21 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
