Owner’s Manual GMR 404/406
© 2006, 2007 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151st Street, Olathe, Kansas 66062, USA Tel. (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, UK Tel. +44 (0) 870.8501241 (outside the UK) 0808 2380000 (within the UK) Fax +44 (0) 870.8501251 Garmin Corporation No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan Tel. 886/2.2642.9199 Fax 886/2.2642.9099 All rights reserved.
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 specifications, regulatory information, and maintenance information. You can also find warranty, European Licensing Requirements, and FCC information in the Appendix. An Index is provided at the end of the manual for reference.
Introduction > Table of Contents Table of Contents Introduction............................................................................i Installing Your GMR 404/406.................................................... i About This Manual.................................................................... i Product Registration............................................................... iii Contact Garmin...............................................................................
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.
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.
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 reflected 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.
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. Understanding the Radar Display The Radar Page shows a status bar along the top, user-configurable 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.
Basic Operation > Radar Page Radar Page A properly installed radar is detected as a new network connection when you turn on your Garmin Marine Network chartplotter. Note: A software update may be needed for the radar to function properly. If the message “Incompatible Software Version” appears when you turn on your chartplotter, you must update your chartplotter software. A software update card is provided with the GMR 404/406.
Basic Operation > Radar Page Using the Radar Adjustment Menu Use the Radar adjustment menu to access the settings and features most commonly used on the Radar Page including: Gain, Sea Clutter, Rain Clutter, FTC, Zoom, Target Expansion, Trails, Guard Zone, VRM/EBL, MARPA, and Hide/Show Navigation Features. To select an adjustment option from the Radar Page 1. Press ADJ/MENU to open the Radar adjustment menu. To change a Radar adjustment menu setting: 1.
Basic Operation > Radar Page FTC (Fast Time Constant) FTC controls unwanted screen clutter caused by rain at a distance. The Fast Time Constant has four settings: Off, Low, Medium, and High. Zoom Zoom allows you to zoom in on a selected area of the radar screen. When you select a zoom range, a window showing a zoomed portion of the screen appears in the lower-left corner and a selection box appears.
Basic Operation > Radar Page Trails Trails allows you to select whether all returns on the screen leave a history trail, and allows you to determine the length of the history trail (Off, Short, Medium, or Long). Trails On Trails Off Guard Zone A Guard Zone is a user-defined area of protection. If a target enters the Guard Zone, an alarm sounds. You can define two Guard Zones. The Guard Zone Menu has two areas, “Guard Zone 1” and “Guard Zone 2.” Each area has two settings, Show (Hide) and Adjust.
Basic Operation > Radar Page VRM/EBL The (Variable Range Marker (VRM) and Electronic Bearing Line (EBL) tools measure range and bearing to a target. You can move the center point of the VRM, which allows you to measure from one target to another. Two VRM/EBL tools can be active at the same time. The VRM/EBL option has two areas, VRM/EBL 1 and VRM/EBL 2. Each area has two settings, Show (Hide) and Adjust. You can adjust the diameter of the VRM and the angle of the EBL. To adjust the VRM/EBL: 1.
Basic Operation > Radar Page MARPA The Mini Automatic Radar Plotting Aid (MARPA) function helps with collision avoidance. MARPA can track up to 10 designated targets. Detailed information including bearing, range, course, speed, closest point of approach (CPA), and time to closest point of approach (TCPA) for each target is shown in the MARPA list. Note: MARPA requires the use of a heading sensor. The heading sensor must output the NMEA sentence HDM or HDG at format 0183, v2.30 or higher.
Basic Operation > Map Page Radar Overlay To view the MARPA List: Press the MARPA List soft key. Set Motor to High Speed (Set Motor to Normal Speed) The Set Motor to High Speed (Set Motor to Normal Speed) option allows you to select the motor speed of the GMR 404/406. Selecting Set Motor to High Speed to increases the speed at which the radar rotates, thus increasing the speed at which the screen updates. Map Page Radar Overlay Radar information can be shown as an overlay on the Map Page.
Basic Operation > Radar Tab Map Page with Radar Overlay and Radar Page To hide the radar data overlay on the Map Page: 1. Press the Radar Options soft key. 2. Press the Hide Radar soft key. The radar overlay is hidden. Radar Tab When GMR 404/406 is connected to a Garmin Marine Network chartplotter, and either the Auto-Detect Services or Radar check box is selected on the System tab, the Radar tab appears on the Main Menu. Use the Radar tab to set up the Radar Page.
Basic Operation > Radar Tab • North Indicator—toggles the north indicator arrow on or off. • Timed Transmit—used to save power, usually while at anchor. When Timed Transmit is On, the radar uses the settings in Timed Transmit XMIT Time and Timed Transmit STBY Time fields. When Timed Transmit is Off, these fields are unavailable. • Timed Transmit XMIT Time—sets the amount of time (in minutes) for which the radar transmits.
Basic Operation > Radar Tab • Rings—toggles the radar rings on or off. • Background—sets the background color for the Radar Page. Available options are Black, Blue, or White. • Heading Line—toggles the heading line on or off. • Bearing Reference—sets your bearing, either Absolute or Relative. Relative calculates the bearing relative to own vessel heading. Absolute calculates the bearing referring to North. • Navigation Features—allows you to show or hide navigational features on the Radar Page.
Basic Operation > Radar Tab • Safe Zone Ring—displays a ring on the Radar Page depicting the Own Vessel Safe Zone. • Velocity Reference—has two settings, Absolute and Relative. This setting determines how speed and direction are displayed on the MARPA list. Relative calculates target speed and direction relative to your own. Absolute shows the target’s actual speed. Advanced Sub Tab Use the Advanced sub tab to set AFC mode, front of boat offset and antenna size.
Appendix > Specifications Appendix Specifications 4 ft Open-Array Antenna Type: End fed slotted waveguide Horizontal Beamwidth: 1.8 degrees Horizontal Sidelobes: -23 dB within ±10 deg of main -30 dB outside ±10 deg of main Vertical Beamwidth: 24 degrees Antenna Gain: 29 dBi Polarization: Horizontal Input Return Loss: Better than -20 dB Weight: 12 lbs (5.4 kg) 6 ft Open-Array Antenna Type: End fed slotted waveguide Horizontal Beamwidth: 1.
Appendix > European License Requirements Radar Interference: Anti-jamming algorithm Clutter Suppression: Sea Clutter, Rain Clutter, FTC Weight: 42 lbs (19 kg) Dimensions: 17" x 11" x 16" Cable: 49.21' (15 meters) long; 8.4 lbs (3.8 kg) Radar Display Features Presentation Modes: North up, Course up, Heading up VRM/EBL: 2 user adjustable, capable of floating Bearing Accuracy: 1 degree Range Ring Accuracy: 20 meters or ±1.5% of range scale, whichever is greater.
Appendix > Limited Warranty Limited Warranty All Garmin marine radomes and open array scanners are warranted to be free from defects in materials or workmanship for two years from the date of purchase. Within this period, Garmin will, at its sole option, repair or replace any components that fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts or labor, provided that the customer shall be responsible for any transportation cost.
Appendix > FCC Compliance and DoC FCC Compliance Declaration of Conformity (DoC) This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
Index Index A Advanced sub tab 13 AFC mode 13 auto-detect services 10 B Bearing Line 12 bearing reference 11, 12 begin transmitting 9 C center offset 11 clutter rain 4 sea 4 configuring Radar Page 3 cross-talk rejection 11 F FTC 4 G gain 4 Garmin Marine Network 8 guard zone 4, 6 defining 6 H heading line 2, 11, 12 heading sensor 8 hide/show navigation features 4 M digital navigation data 2 Display sub tab 11 main pages Radar Page 3–7 manually adjust the radar 13 MARPA 4, 8–9 list 9 target 8 M
For the latest free software updates (excluding map data) throughout the life of your Garmin products, visit the Garmin Web site at www.garmin.com. © 2006, 2007 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151st Street, Olathe, Kansas 66062, USA Garmin (Europe) Ltd. Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9DL, UK. Garmin Corporation No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan www.garmin.com Part Number 190-00669-00 Rev.
