Garmin GPSMAP 420 Owner's Manual

Garmin GPSMAP 420 Owner's Manual

Gpsmap 400 series
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GPSMAP 400 series
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  • Page 1 GPSMAP 400 series owner’s manual...
  • Page 2 All rights reserved. Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted, disseminated, downloaded or stored in any storage medium, for any purpose without the express prior written consent of Garmin. Garmin hereby grants permission to download a single copy of this manual...
  • Page 3: Tips And Shortcuts

    ® key to adjust the display Chart, and press Quick Links • Turning the Unit On or Off: page • Acquiring GPS Satellite Signals: page • Inserting and Removing SD Cards: page • Restoring Factory Settings: page • Using the Navigation Chart: page •...
  • Page 4: Table Of Contents

    Unit Overview ... 1 Turning the Unit On or Off ... 2 Adjusting the Backlight ... 2 Using the Keypad ... 3 Acquiring GPS Satellite Signals ... 4 Using Simulator Mode ... 4 Restoring Factory Settings ... 5 Viewing System Information ... 5 Inserting and Removing SD Cards ...
  • Page 5 Configuring the Unit ...29 Configuring System Settings ... 29 Changing Units of Measure ... 29 Configuring Communications Settings ... 30 Setting Alarms ... 31 Configuring My Boat ... 32 Configuring Other Boats ... 34 Configuring XM Audio ... 34 Using Sonar ...35 Understanding the Full Screen ...
  • Page 6: Warnings

    Important Information MAP DATA INFORMATION: One of the goals of Garmin is to provide customers with the most complete and accurate cartography that is available to us at a reasonable cost. We use a combination of governmental and private data sources, which we identify in product literature and copyright messages displayed to the consumer.
  • Page 7: Getting Started

    Unit Overview MARK SELECT HOME MENU Power/data External GPS GXM 3 antenna SD card slot antenna GPSMAP 440sx Shown GPSMAP 400 Series Owner’s Manual ®...
  • Page 8: Turning The Unit On Or Off

    Turning the Unit On or Off Press and hold the POWER key until the unit beeps and the Garmin screen appears. When the Warning screen appears, press SELECT to open the Home screen. NOTE: The first time you power on your unit, you must go through a setup sequence. See...
  • Page 9: Using The Keypad

    To switch between Day and Night mode: 1. Press and release the POWER key. Select Day/Night Mode. 3. Press left or right on the ROCKER to switch between modes. GPSMAP 400 Series Owner’s Manual ® Using the Keypad MARK SELECT HOME POWER/BACKLIGHT—Press and hold to turn the unit on or off; press and release to adjust the backlight and Day/Night modes. RANGE (-/+)—Press to adjust the range of the sonar; zoom in or out on a chart. ROCKER—Press up, down, left, or right to move through menus, highlight fields, and enter data. MARK—Press to mark a waypoint. SELECT—Press to select highlighted items and confirm on- screen messages.
  • Page 10: Acquiring Gps Satellite Signals

    When the unit acquires satellite signals, the signal strength bars at the top of the Home screen are green satellite signals, the green bars disappear For more information about GPS, visit the Garmin Web site at www.garmin.com/aboutGPS. Using Simulator Mode Simulator Mode turns the GPS receiver off for use indoors or for practice.
  • Page 11: Restoring Factory Settings

    Insert blank SD cards to transfer data such as waypoints, routes, and tracks to another compatible Garmin unit or a PC. The SD card slot is located on the bottom-right corner of the unit.
  • Page 12: Understanding The Home Screen

    • Sonar—access sonar information (page NOTE: This option is available only if you have a unit with a built-in sounder or a Garmin sonar module connected. • Chart/Sonar—set up the screen to view a chart and sonar in a split screen (page 18).
  • Page 13: Using Charts

    • Mariner’s Eye—a bird’s eye view from above and behind your boat, for a visual navigation aid. NOTE: If you are using a GPSMAP 420/420s you must insert an optional BlueChart g2 Vision preprogrammed SD card to view detailed navigation and mariner’s eye 3D charts.
  • Page 14: Navigation Chart Settings

    SInG hartS Navigation Chart Settings To access additional settings or options for the navigation chart, press MENU. Full Screen Map (Show Numbers)—view the navigation or fishing chart in full-screen mode, without numbers. Select to view numbers again. Full Screen Map WEATHER—turn NEXRAD weather data on or off. NOTE: You must plug the optional GXM 31 antenna into the XM port on the back of the unit and have a subscription to XM WX Satellite Weather to view NEXRAD data.
  • Page 15 Panning the Navigation Chart Use the map pointer ( ) to pan away from your current location, and scroll to other areas on the navigation chart. As you pan past the edge of the current map display, the screen scrolls forward to provide continuous map coverage.
  • Page 16 SInG hartS 2. Select the item. If more than one item is in the area, select Review, and then select the item. Viewing Tide Station Information Tide station information appears on the chart with a detailed icon (when animated, see page 17) showing the relevant tide level. You can view an in-depth graph for a tide station to help predict the tide level at different times or different days.
  • Page 17: Using The Split Navigation Chart

    Using the Split Navigation Chart Use the Split Navigation Chart to view two different zoom levels of the Navigation Chart at the same time. Near zoom Split Navigation Chart (with a BlueChart g2 Vision card) The top half of the screen is zoomed in 10 times closer than the Range (+/-) bottom half of the screen.
  • Page 18: Using Mariner's Eye 3D

    SInG hartS Using Mariner’s Eye 3D Mariner’s Eye 3D provides a bird’s eye view from above and behind the boat (according to your course), and provides a visual navigation aid. This view is helpful when navigating tricky shoals, reefs, bridges, or channels, and is beneficial when trying to identify entry and exit routes in unfamiliar harbors or anchorages.
  • Page 19: Using Fish Eye 3D

    Using Fish Eye 3D Using the depth contour lines of the BlueChart g2 Vision cartography, Fish Eye 3D provides an underwater view of the sea floor or lake bottom. Fish Eye 3D Settings To access additional settings or options for the Fish Eye 3D, screen, press MENU.
  • Page 20: Enabling High Resolution Satellite Imagery

    SInG hartS Enabling High Resolution Satellite Imagery You can overlay high-resolution satellite images on the land, sea, or both portions of the navigation chart when using a preprogrammed BlueChart g2 Vision SD card. NOTE: This feature is preloaded on the GPSMAP 430/430s/430x/430sx units.
  • Page 21: Viewing Aerial Photos

    Viewing Aerial Photos Preprogrammed BlueChart g2 Vision SD cards contain aerial photographs of many landmarks, marinas, and harbors. Use these photos to help orient yourself to your surroundings, or to help acquaint yourself with a marina or harbor prior to arrival. Aerial Photo NOTE: Use the RANGE (+/-) keys to zoom in and out while viewing the aerial photo on the full screen.
  • Page 22: Viewing Current Station Information

    SInG hartS Viewing Current Station Information If current stations are available in your g2 Vision region, they appear on the navigation chart as a highlighted arrow. This detailed icon shows the current’s speed and direction at a glance. Detailed Road and POI Data BlueChart g2 Vision contains detailed road and POI data, which includes highly detailed coastal roads and points of interest (POIs) such as restaurants, lodging, local attractions, and more.
  • Page 23: Changing The Chart Appearance

    Heading Line—draws an extension from the bow of the boat in the direction of travel. • Off—turn off the heading line. • Distance—sets the distance to the end of the heading line. • Time—sets the amount of time until you reach the end of the heading line.
  • Page 24: Using The Chart/Sonar Screen

    SInG hartS Using the Chart/Sonar Screen Use the Chart/Sonar screen to view the navigation chart, fishing chart, Mariner’s Eye 3D, or Fish Eye 3D and sonar at the same time. To view a split chart/sonar screen: 1. From the Home screen, select Chart/Sonar 2. Select the type of chart on the split screen. Sonar screen Navigation/Sonar Combination To access additional settings or options for the chart/sonar screen, press MENU.
  • Page 25: Where To

    here Where To Use the option on the Home screen to search for, and navigate to, nearby fuel, repairs, marinas, ramps, waypoints, and routes. NOTE: You have to create waypoints and routes before you can navigate to them. You can navigate to a destination using one of three methods: Go To, Route To, or Guide To.
  • Page 26 here 3. Select the marine service item to which you want to navigate. A screen containing information about the selected marine service appears. Select Navigate Select Go To or Route To. Select Guide To when using a preprogrammed BlueChart g2 Vision card to use Auto Guidance. 6. Follow the colored line on the screen to the destination. To stop navigating: Press MENU, and then select Stop Navigating. To search for a destination by name: From the Home screen, select Where To? > Search by Name. 2. Press up or down on the ROCKER to select a number or character; press left or right to move fields. 3. Press SELECT to view the 50 nearest destinations that contain your search criteria.
  • Page 27: Creating And Using Waypoints

    Creating and Using Waypoints You can store up to 1,500 alphanumeric waypoints with a user- defined name, symbol, depth, and water temp for each waypoint. When you create a waypoint, you can designate it as a Man Overboard. This marks the point and sets a course back to the marked location.
  • Page 28 here To edit a waypoint: 1. Create a new waypoint or select a waypoint on the navigation chart. Select Edit Waypoint. 3. Select the waypoint attribute you want to change (Name, Symbol, Depth, Water Temp, or Position). To move the waypoint on the navigation chart: Select Edit Waypoint > Position > Use 2. Use the ROCKER to move the waypoint to a different location, and press SELECT. To view a list of all waypoints: From the Home screen, select Information > User Waypoints. GPSMAP 400 Series Owner’s Manual ®...
  • Page 29: Creating And Using Routes

    Creating and Using Routes You can create and store up to 20 routes, with up to 250 waypoints each. To create a route from your present location: 1. Move the map pointer to a destination, and press SELECT. Select Navigate To > Route Adding a Turn to a Route 3. Use the ROCKER to add a turn, and press SELECT. Repeat this step to add additional turns. 4. Press MENU to cancel, undo the last turn, or to begin navigating the route.
  • Page 30 here To edit a route From the Home screen, select Information > User Routes. 2. Select the route to edit. Select Edit Route. You can edit the route name, turns, or delete the route. To delete a route: Data > From the Home screen, select Information > User Routes. Select the route to delete, and then select Edit 3. Select Delete. Data > Route. GPSMAP 400 Series Owner’s Manual ®...
  • Page 31: Viewing Information

    Use the Information screen to access information about user data, tides, currents, celestial data, and other boats. Viewing Numbers You can view and customize numerical data including depth, GPS information, and navigation information. You can customize the number of fields shown and the type of information shown in each field. You can view up to six fields of numerical information.
  • Page 32: Viewing Tide Station Information

    IeWInG nformatIon Viewing Tide Station Information To view tide information, select Tides from the Information screen, then select a tide station from the list. Tide station Local time High tide curve Current tide height Low tide curve Tide Prediction Chart •...
  • Page 33: Viewing Celestial Information

    To transfer data to or from an SD card: 1. Insert an SD card into the SD card slot on the front of the unit. (See page 5) From the Home screen, select Information > User Press left or right Data Transfer. on the ROCKER to adjust the time. 3. Complete one of the following: Select Save to • tracks to the SD card. • Select Merge from card to the unit and combine it with existing GPS data. • Select Replace From unit. IeWInG nformatIon Information > Data > Card to save waypoints, routes, and Card to transfer data from the SD Card to overwrite items on your...
  • Page 34: Viewing Other Boats

    IeWInG nformatIon Viewing Other Boats To view information about other boats, from the Home screen, select Information > Other boats. NOTE: To view information about other boats, your GPSMAP 400 series unit must be connected to an external AIS (Automatic Identification System) or DSC (Digital Selective Calling) device.
  • Page 35: Configuring The Unit

    Temperature—individually set units of measure for temperature to Fahrenheit (ºF) NOTE: You must be receiving NMEA Sonar depth data or using a Garmin sounder module to view depth and temperature information. (default), and Dist, Spd, Elev—individually set the units of measure for distance, speed, and elevation readings.
  • Page 36: Configuring Communications Settings

    • Garmin Data Transfer—the proprietary format used to upload, download, or exchange data with a computer or another Garmin unit. • Garmin Remote Sonar—allows you to connect a Garmin GSD 21 or GSD 22 serially. • NMEA In/NMEA Out—supports the input or output of standard NMEA 0183 data, DSC, and sonar NMEA input support for the DPT, MTW, and VHW sentences.
  • Page 37: Setting Alarms

    Press left or right GPS Accuracy—set an alarm to sound when the GPS location on the ROCKER accuracy falls outside the user-determined value. to move fields.
  • Page 38: Configuring My Boat

    onfIGurInG the Setting Sonar Alarms To set a sonar alarm, from the Home screen, select Alarms > Sonar. Shallow Water/Deep Water—set an alarm to sound when the depth is less than or greater than the specified value. Water Temp—set an alarm to sound when the transducer reports a temperature that is 2° F (1.1° C) above or below the specified temperature.
  • Page 39 • Temp Source—set the temperature source • Sonar Cone Angles—when using a transducer other than the standard Garmin transducer, you can set the angle, in degrees, of the sonar cone so it is accurately depicted on the Fish Eye 3D screen.
  • Page 40: Configuring Other Boats

    onfIGurInG the Configuring Other Boats To configure settings for boats other than your own, from the Home screen, select Configure > Other boats. AIS—turn AIS (Automatic Identification System) on or off. AIS alerts you to area traffic by providing boat IDs, position, course, and speed for boats equipped with a transponder within range. DSC—turn DSC (Digital Selective Calling) on or off. NOTE: To configure AIS or DSC information for other boats, your unit must be connected to an external AIS or DSC device. page 30 for more information.
  • Page 41: Using Sonar

    When connected to a transducer, your unit becomes a powerful fishfinder/flasher. If your unit does not have a built-in sounder, you can connect a Garmin GSD 21 or GSD 22 sounder module to your unit to use the sonar features. Understanding the Full Screen Select the Full Screen option to view a full-screen graph of the transducer’s sonar readings.
  • Page 42: Understanding The Split Freq Screen

    SInG onar Understanding the Split Freq Screen Use the Split Freq screen (dual frequency transducer only) to view both the 50kHz and 200kHz frequencies on the same screen. A 50kHz frequency graph appears on the left; a 200kHz frequency graph appears on the right. To open the Split Freq screen, from the Home screen, select Split Freq.
  • Page 43: Understanding The Temp Log Screen

    Understanding the Temp Log Screen If you are using a temperature-capable transducer, the Temp Log screen keeps a graphic log of temperature readings over time. The current temperature and depth are shown in the top-left corner. Sonar Temp From the Home screen, select >...
  • Page 44: Advanced Sonar Settings

    SInG onar Scroll Speed—adjust the rate at which the sonar scrolls from right to left (Ultrascroll, Fast, Medium, or Slow). If using a speed-capable transducer, select Auto to have the scroll speed automatically adjust to your boat’s water speed. Surface Noise—show or hide the sonar returns near the surface of the water.
  • Page 45: Installing The Unit

    Compare the contents of this package with the packing list on the box. If any pieces are missing, contact your Garmin dealer immediately. Before you begin the installation: • Read and follow the instructions to install the unit.
  • Page 46: Step 2: Mount The Unit

    nStallInG the Step 2: Mount the Unit You can mount your unit in one of two ways: • Surface Mount—mount the unit onto a bracket (included) that attaches to the console or overhead. • Flush Mount—use the optional flush mount kit to mount the unit into a flat panel. See the “Appendix” for more information. Surface Mounting the Unit The unit’s compact, waterproof case is suitable for mounting in exposed locations or at the navigation station.
  • Page 47 To mount the bracket assembly: 1. Using the swivel base as a template, mark the location of the three holes that secure the bracket to the mounting surface. 2. Drill the mounting holes. • If you secure the base with machine bolts, drill three 5/32" (5 mm) holes at the locations you marked. • If you secure the base with self-tapping screws, drill starter holes at the locations you marked. Do not make the starter holes deeper than half the screw length. 3. Secure the swivel base with three bolts or screws. DO NOT OVERTIGHTEN. 4. Place the swivel mount bracket over the swivel base and secure it with the short knob. GPSMAP 400 Series Owner’s Manual ® To install the unit on the mounting bracket: 1. Align the slot on the back of the unit with the long mounting knob, and slide the unit into place. If necessary, adjust the long knob to spread the bracket arms apart.
  • Page 48: Step 3: Install The Transducer

    Proper transducer installation is key to getting the best performance from your unit. If the transducer lead is too short, extension cables are available from your Garmin dealer. Coil and secure any excess cable. CAUTION: DO NOT cut the transducer lead or any part of the transducer cable.
  • Page 49 To mount the dual beam transducer on a trolling motor: 1. Slide the large cable tie through the slot on the transducer mount with the ridges of the band facing up until equal lengths extend on both sides of the mount. NOTE: For cold water and heavy timber or debris areas, a metal 4-5" worm gear clamp is recommended. 2. Position the mount gasket on the curved top of the transducer mount. 3. Place the transducer assembly against the motor body of the trolling motor, with the front of the transducer pointed away from the trolling motor propeller. 4. Wrap the two ends of the cable tie around the motor body. Place the pointed end of the cable tie through the fastener hole on the opposite end and pull it through until it is snug but not tight. (The cable tie clicks when you pull it.)
  • Page 50 nStallInG the Mounting the Transducer on a Transom Apply marine sealant to all screw threads to prevent water from seeping into the transom. Mount the transducer parallel with the bottom. USS Barnett Mount the transducer cable cover well above the waterline.
  • Page 51 When selecting a transom mount location, consider the following for optimal performance: • For your sonar to operate properly, the transducer must be located in calm water. DO NOT mount the transducer behind strakes, rivet lines, struts, fittings, water intake, discharge ports, eroding paint, or anything that creates turbulence. •...
  • Page 52 nStallInG the 6. Mark the location. Using a 1/8" bit, drill a pilot hole approximately 3/8" (10 mm) deep. 7. Attach the cable clamp using a 4 x 12 mm screw. Coat the screw with marine sealant before installation. Repeat steps 5 and 6 using the other cable clamp. 8. Route the transducer cable, as needed, to the unit. DO NOT CUT THE CABLE. Avoid routing the cable with electrical wires or other sources of electrical interference. Drill pilot holes here. Level Align with the transom bottom. The transducer should extend /" below fiberglass hulls or 3/"...
  • Page 53 Selecting a Location for a Shoot-Thru-Hull Installation When installing a transducer, the installation location must be the following: • Solid fiberglass, without any air bubbles, laminates, fillers, or dead air space. • In an area of clean (non-turbulent) water at all speeds. • The location must not be over any strakes or behind any obstruction on the hull that would create turbulence.
  • Page 54: Step 4: Install The Wiring Harness

    nStallInG the Step 4: Install Install the Wiring Harness The unit comes with a wiring harness that connects the unit to power and the transducer with one easy-to-remove connection and provides interface capabilities for connecting external devices. The color code in the diagram (see page appropriate harness connections.
  • Page 55 PIN 8 - Black (Ground) PIN 13 - Red (DC Positive) PIN 18 - Blue (NMEA Out) GPSMAP 400 Series Pin Assignment GPSMAP 400 Series Owner’s Manual ® PIN 7 - Yellow (Alarm) (RED) +VDC PIN 12 - White (CANet H) PIN 16 - Green (CANet L) (BLACK) Ground (ORANGE) Accessory On...
  • Page 56 Severna Park, MD 21146 USA www.nmea.org Installing the Unit to a Garmin CANet The unit is a CANet-compatible Garmin device, and can send or receive sonar information from another CANet-compatable Garmin device. Using the CANet optimizes the performance of CANet-...
  • Page 57: Step 5: Test The Installation

    Step 5: Test the Installation To turn on your unit for the first time, press and hold the POWER key until the unit beeps and turns on. Use the and the SELECT keys and follow the screens to configure your unit. NOTE: Although you can perform some checks with the boat trailered, the boat should be in the water to properly test the installation.
  • Page 58 nStallInG the To test the transom mount transducer installation: 1. Begin testing the installation at a slow speed. If the sonar appears to be working properly, gradually increase the boat’s speed while observing the sonar’s operation. If the sonar signal suddenly is lost or the bottom return is severely degraded, note the speed at which this occurs. 2. Return the boat to the speed at which the signal was lost. Make moderate turns in both directions, and see if the signal improves. 3. If the signal strength improves while turning, adjust the transducer so that it extends another 1/8" below the transom of the boat. It might take several adjustments to eliminate the degradation. 4. If the signal does not improve, you might have to move the transducer to a different location. NOTE: When adjusting the depth of the transducer, make the adjustments in small increments. Placing the transducer too deep can adversely affect the boat’s performance and put the transducer at greater risk of striking underwater objects.
  • Page 59: Appendix

    AutoLocate: Approx 2 minutes Update Rate: 1/second, continuous GPSMAP 400 Series Owner’s Manual ® GPS Accuracy: Position: <49 feet (15 meters), 95% typical* Velocity: 0.05 meters/sec steady state WAAS Accuracy: Position: <10 feet (3 meters), 95% typical* Velocity: 0.05 meters/sec steady rate Dynamics: 6gs * Subject to accuracy degradation to 100 m 2DRMS under the U.S.
  • Page 60: Product Registration

    Keep the original sales receipt, or a photocopy, in a safe place. Contact Garmin Contact Garmin if you have any questions while using your GPSMAP 400 Series unit. In the USA contact Garmin Product Support by phone: (913) 397-8200 or (800) 800-1020, Monday–...
  • Page 61: Alarms And Messages

    MENU Can’t Read User Card—error reading card; remove and reinsert. Contact your dealer or Garmin Product Support if the problem persists. Can’t Read Voltages That High, Limited To Top Of Range—the voltage value in the Battery Alarm setup is higher than the unit can read.
  • Page 62 DSC Position Report Received From—shows the MMSI or name associated with an MMSI. Database Error—internal problem with the unit. Contact your dealer or Garmin Product Support to have the unit serviced. Deep Water Alarm—the Deep Water Alarm depth has been reached.
  • Page 63 ® Sonar Timeout—there is an internal problem with the unit. Contact your dealer or Garmin Product Support to have the unit serviced. Sonar Service Lost—the external sonar device you were connected to has either been disconnected or the unit has lost communication with the sonar device for some other reason.
  • Page 64 ppendIx Transducer Disconnected, Sonar Turned Off—there is not a transducer attached, bad cable/transducer, or the transducer cable was disconnected. If the transducer cable is removed while the unit is on, reconnect and cycle power. Transfer Complete—the unit has finished uploading or downloading information to the connected device. User Card Not Found, Please Insert Card—attempted to transfer user data without an SD card containing user data being present in the SD card slot.
  • Page 65: Weather Data Warranty

    You assume the entire risk related to your use of the Services. XM and Garmin assume no responsibility for accidents resulting from or associated with use of the Services.
  • Page 66: Xm Satellite Radio Service Agreement

    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...
  • Page 67: Limited Warranty

    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.
  • Page 68: Fcc Compliance

    Hereby, Garmin, declares that this unit is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC. To view the full Declaration of Conformity, see the Garmin Web site for your Garmin product: www.garmin.com/products/. Click Manuals, and then select the Declaration of Conformity link.
  • Page 69: Index

    HOME key input voltage installing 39–48 selecting a location testing the mount the transducer the wiring harness to a Garmin CANet interfacing with NMEA keel offset adjusting language changing LCD screen light sectors limited warranty MENU key messages...
  • Page 70 ndex object information safe depth accessing safe zone obstruction satellite imagery optional accessories enabling orientation scroll speed other boats SD cards configuring 34 inserting viewing removing SD card slot SELECT key physical specifications 53 settings position chart POWER/BACKLIGHT key system power/data and transducer cables 39, shoot-thru-hull installation simulator mode using...
  • Page 72 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. © 2007 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151 Street, Olathe, Kansas 66062, USA Garmin (Europe) Ltd.

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