Garmin GPSMAP 378 Owner's Manual
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Garmin GPSMAP 378 Owner's Manual

Garmin GPSMAP 378 Owner's Manual

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GPSMAP 378/478
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Summary of Contents for Garmin GPSMAP 378

  • Page 1 Owner’s Manual GPSMAP 378/478 chartplotting receiver GPSMAP 478 shown...
  • 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 onto a hard drive...
  • Page 3 Take a moment to compare the contents of this package with the packing list on the outside of the box; if any pieces are missing, contact your Garmin dealer immediately. About This Manual To get the most out of your new navigation system, take time to read this manual and learn the operating procedures for your unit.

  • Page 4: Table Of Contents

    NTRODUCTION ABLE OF ONTENTS Table of Contents Introduction ...i Caring for the GPSMAP 378/478 ... iv Warning ... v Caution ... vi Getting Started ...1 Unit Overview ... 1 Charging the GPSMAP 378/478 ... 2 Turning On the GPSMAP 378/478 ... 3 Getting Satellite Signals ...

  • Page 5: Ntroduction

    Setting Up and Using Sonar ...104 Showing Sonar on the Map Page ... 104 Using the Sonar Page ... 105 Setting Up Sonar ... 109 Understanding Sonar ... 113 GPSMAP 378/478 Owner’s Manual NTRODUCTION Appendix ...116 Specifications ... 116 Optional Accessories ... 117 Installation Information ...

  • Page 6: Caring For The Gpsmap 378/478

    Cleaning the Screen The GPSMAP 378/478 screen should be cleaned using a soft, clean, lint-free cloth. Water, isopropyl alcohol, or eyeglass cleaner can be used if needed. If these are used, apply the liquid to the cloth and then gently wipe the screen with the moistened cloth.

  • Page 7: Warning

    field of deployment. Always operate the vehicle in a safe manner. Do not become distracted by the GPSMAP 378/478 while driving, and always be fully aware of all driving conditions. Minimize the amount of time spent viewing the screen of the GPSMAP 378/478 while driving and use voice prompts when possible.

  • Page 8: Caution

    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 9: Getting Started

    Unit Overview The GPSMAP 378/478 is an all-in-one, versatile color chartplotter and automobile navigator—perfect for land or water. This portable GPS navigator features a 256-color TFT display that is easy to read in bright sun and includes a built-in g2 cartography (GPSMAP 478) and built-in lake cartography (GPSMAP 378), and pre-loaded City Navigator NT directions.

  • Page 10: Charging The Gpsmap 378/478

    Charging the GPSMAP 378/478 Before using the unit, you might need to charge the battery in the GPSMAP 378/478. Plug the unit into an external power source to charge. You can use the unit while it is charging. To charge the unit’s battery: 1.

  • Page 11: Turning On The Gpsmap 378/478

    Turning On the GPSMAP 378/478 The first time you turn on your new GPSMAP 378/478, the GPS receiver must collect satellite data and establish its current location. To ensure proper initialization, the GPSMAP 378/478 is shipped from the factory in AutoLocate mode, which allows the receiver to “find itself”...

  • Page 12: Getting Satellite Signals

    The GPS page appears while the unit is gathering satellite signals and acquiring a fix, which should take only a few minutes. While the GPSMAP 378/478 is getting satellite signals, the GPS page shows the status as “Acquiring Satellites.”...
  • Page 13 • Green signal strength bars—the receiver has collected the necessary data from this satellite. When the GPSMAP 378/478 collects the necessary data from the best satellites in view to calculate a fix, the status field indicates the status of the receiver. The unit then updates the location, date and time.

  • Page 14: Gps Options

    As soon as the receiver gathers enough satellite information, your proper location appears on the map. Any time you have traveled more than 600 miles with the GPS receiver turned off, the receiver may take longer than normal to initialize and find your location.

  • Page 15: Using The Gpsmap 378/478 Keypad

    Using the GPSMAP 378/478 Keypad PAGE/MODE Key • Press to cycle through main pages in sequence and exit a submenu page. • Press and hold to switch between Marine and Automotive modes. QUIT Key • Press to cycle through main pages in reverse sequence, revert to the previous value in a data entry field, or cancel an unintended function.

  • Page 16: Using The Gpsmap 378/478

    This section explains how to enter and select information with the GPSMAP 378/478. Understanding Terms The GPSMAP 378/478’s advanced keypad system is designed to allow quick, convenient selection of navigation options and data entry. As you progress through this owner’s manual, you are directed to press a specific key or highlight a field on the screen.

  • Page 17: Selecting Options And Entering Data

    Cartography The GPSMAP 378 system contains preloaded U.S. inland freshwater cartography to its enhanced worldwide basemap information. The preloaded inland maps offer 50-meter shoreline resolution throughout the U.S., with even more detailed 10-meter resolution on select lakes. Other details include depth contours, tide and current data, boat ramps, mile markers, hazards, marinas, campgrounds, area roads, and more.
  • Page 18 TIP: To clear the entire data field, highlight the left-most character field and press left on the ROCKER again. 3. Press ENTER. Not all fields are programmable. When you are on a page with fields that are not selectable, the highlight skips over them. GPSMAP 378/478 Owner’s Manual...

  • Page 19: Restoring Default Settings

    GPSMAP 378/478 Owner’s Manual Using the Databases Optional Garmin data cards and MapSource CD-ROMs enhance the versatility of your GPSMAP 378/478. With optional MapSource section beginning on BlueChart information and g2 you can view information for outside the U.S. that is not already pre-loaded.

  • Page 20: Simulator Mode

    TARTED IMULATOR Simulator Mode To help you get to know your GPSMAP 378/478, you can use the unit in Simulator Mode. Simulator Mode is also helpful for practicing with the unit indoors or when no satellite signals are available. All waypoints and routes created in Simulator Mode are retained in memory for future use.

  • Page 21: Basic Operation In Marine Mode

    Marine Mode. The following examples show the main pages in Marine Mode with internal MapSource BlueChart detailed maps. Marine Mode is the default mode for the GPSMAP 378/478. This manual first addresses the page, such as the Map Page, as it appears in Marine Mode.

  • Page 22: Navigating In Marine Mode

    You can also activate a saved track through the Track tab of the Main Menu. For information about tracks, see page 13. MOB (Man OverBoard)—creates a MOB waypoint and navigates to that location. Navigate Menu in Marine Mode GPSMAP 378/478 Owner’s Manual...
  • Page 23 3. Follow the magenta route created on the Map Page. Follow the turn-by-turn route (auto-route) by using the Next Turns Page and Current Route Page. If you are using the external speaker, follow the voice prompts. GPSMAP 378/478 Owner’s Manual ASIC PERATION IN ARINE To start a new route using the Find Menu: 1.
  • Page 24 MOB symbol is created, and the unit begins actively navigating to that point. Use any of the Navigation Pages to guide you back to the MOB point. The MOB waypoint is stored in the waypoint list and can be deleted like any other waypoint. “Finding an GPSMAP 378/478 Owner’s Manual...

  • Page 25: Finding An Item

    Find Menu Follow the directions on page to search for an item near your current location and then route to it. GPSMAP 378/478 Owner’s Manual ASIC PERATION IN Using the Find From Feature The Find option also supports a “find from” feature that allows you to center your search around an item you have just found.

  • Page 26: Recently Found Items

    Show Find History—allows you to toggle between displaying the items you have searched for recently (Find History) and the items you have recently created a Go To for (Go To History). Remove Point—removes the point that is highlighted in the list. GPSMAP 378/478 Owner’s Manual...

  • Page 27: Find Menu Options

    Map Feature Information Page 2. Press PAGE or QUIT to exit the Information Page. You can also highlight one of the on-screen buttons and press ENTER to perform that operation. GPSMAP 378/478 Owner’s Manual ASIC PERATION IN Find Menu Options To view additional options for the Find menu, press FIND, and then press MENU.

  • Page 28: Creating And Using Routes

    When you find an item, highlight OK and press ENTER to add the point to the route. Repeat this step until you finish defining all route points. Creating a New Route on Route Review Page “Finding an Item” section GPSMAP 378/478 Owner’s Manual...
  • Page 29 You can edit the properties of this waypoint as you can with any waypoint. Creating a new route on the map GPSMAP 378/478 Owner’s Manual ASIC PERATION IN ARINE 5.

  • Page 30: Editing A Route

    “Creating and Using Waypoints” page for details). When you return to the Route Review Page, the next point in the route is automatically highlighted. You can review each point on the route by pressing ENTER repeatedly. section beginning on GPSMAP 378/478 Owner’s Manual...
  • Page 31 Route Review Page 5. In the Point Review Page, highlight OK, and press ENTER to add the new point to the route. GPSMAP 378/478 Owner’s Manual ASIC PERATION IN ARINE To edit the route on the map: 1.

  • Page 32: Using The Route Tab Options

    ASIC PERATION IN ARINE REATING AND You can enter information about your trip so the GPSMAP 378/478 can estimate information about your trip. To plan your route: 1. Open the Route Review Page options menu. 2. Highlight Plan Route, and press ENTER.

  • Page 33: Creating And Using Waypoints

    ENTER/MARK. You can also find waypoints using the map or the Find Menu and then store them in the unit before ever leaving home. The GPSMAP 378/478 stores up to 3,000 alphanumeric waypoints with a user-defined icon, comment, elevation, depth, and temperature available for each waypoint.

  • Page 34: Creating Waypoints Using The Map

    You can quickly create a waypoint using the Map Page. When you pan the map and move the arrow over a map item, you will see a highlighted description of that item. The GPSMAP 378/478 uses the map item text shown on the map as the default name and symbol for the new waypoint.

  • Page 35: Creating A Waypoint By Entering Coordinates

    2. On the New Waypoint Page, use the ROCKER to highlight the Location field and press ENTER. Use the ROCKER to enter location coordinates and press ENTER when finished. GPSMAP 378/478 Owner’s Manual ASIC PERATION IN ARINE...

  • Page 36: Reviewing A Waypoint

    Use either of these methods to access the Waypoint Page so you can edit the waypoint. Press MENU when the Waypoint Page is open to access the Waypoint options menu. Points Tab GPSMAP 378/478 Owner’s Manual...

  • Page 37: Adding A Waypoint To A Route

    Average Location makes the unit take several sample location measurements for the waypoint and recalculate for a more accurate location reading. NOTE: You must have a GPS satellite fix before you can average a waypoint’s location. To calculate the average location: 1.

  • Page 38: Projecting A Waypoint

    8. When you have adjusted all elements of the projected location, highlight Save, and press ENTER. 9. Make any other changes to the new waypoint data (such as the name or symbol); highlight OK, and press ENTER. “Finding an Item” section on GPSMAP 378/478 Owner’s Manual...

  • Page 39: Editing A Waypoint

    2. Select Points from the Main Menu, and then highlight User. 3. Highlight the waypoint you want in the list. 4. Press NAV to open the Navigate Menu. Highlight Go To <Point Name>, and press ENTER. GPSMAP 378/478 Owner’s Manual ASIC PERATION IN ARINE...

  • Page 40: Organizing Waypoints Into Categories

    2. Select the Category field, and press ENTER. 3. From the list, select the category to which you want to assign the waypoint, and press ENTER. Select the category to which you want to assign this waypoint. Waypoint Page GPSMAP 378/478 Owner’s Manual...

  • Page 41: Deleting Waypoints

    NOTE: When a waypoint is deleted from the list, it cannot be recovered from the unit. Back up important waypoints to a computer using the PC cable and interface software, such as MapSource Trip & Waypoint Manager, or write them down. GPSMAP 378/478 Owner’s Manual ASIC PERATION IN ARINE...

  • Page 42: Proximity Points

    Because the unit only alerts for one of the overlap points, use caution when navigating in these areas. If you enter an alarm circle overlap, you are only alerted to the closest proximity waypoint. Proximity Points Tab GPSMAP 378/478 Owner’s Manual...
  • Page 43 4. Use the ROCKER to enter a distance value (up to 99.99 units) and press ENTER. GPSMAP 378/478 Owner’s Manual ASIC To clear one or all proximity waypoints from the list: 1. Press MENU twice to open the Main Menu.

  • Page 44: Managing Your Tracks

    Map Page as you travel. The track log contains points along its path, including time, and location for each point. The track log starts recording as soon as the GPSMAP 378/478 gets a location fix. For the best results, clear the track log before you start traveling because when the track log is full, new track points overwrite the oldest track points.
  • Page 45 3. Select Save, and press ENTER. A message appears asking if you want to save the entire track. 4. To save the entire track, highlight Yes, and press ENTER. GPSMAP 378/478 Owner’s Manual ASIC PERATION IN ARINE To save a portion of the track log: 1.

  • Page 46: Saved Tracks

    8. To view the track on the map, highlight Map, and press ENTER. Press QUIT to return to the Track tab. 9. Highlight OK, and press ENTER to save the track. Press QUIT to exit. Track Review Page GPSMAP 378/478 Owner’s Manual...

  • Page 47: Navigating A Saved Track

    PERATION IN ARINE TracBack Tips When a TracBack is initiated, the GPSMAP 378/478 divides the track into segments called legs. Up to 300 temporary turns are created to mark the most significant features of the track in order to duplicate your exact path as closely as possible. To get the most out of the TracBack feature, remember these tips: •...

  • Page 48: Following A Marine Route

    PERATION IN ARINE OLLOWING A Following a Marine Route After you activate a route, the GPSMAP 378/478 automatically starts guiding you to the destination using a variety of tools and pages. Seeing Your Route on the Map Page You can track the progress of your route on the Map Page. Your route is shown with a magenta line.
  • Page 49 For more information see the “Active Route Page” on page 53. Active Goto (Route) Page GPSMAP 378/478 Owner’s Manual ASIC PERATION IN Watching Your Trip Data on the Position Data Page The Position Data Page provides a quick view of the important data you want to see while navigating a route in Marine Mode.

  • Page 50: Marine Mode Pages And Features

    Map and Compass pages, and some additional marine features, such as DSC and the marine timer. Map Page The GPSMAP 378/478 features a real-time moving map that can do much more than just plot your course. The Map Page shows map information (digital cartography) that includes navaids, lakes, rivers, coastlines, cities, and highways.
  • Page 51 3. Highlight Change Data Fields, and press ENTER. 4. Highlight the data field you want to change, and press ENTER. GPSMAP 378/478 Owner’s Manual ARINE AGES AND 5. Press up or down on the ROCKER to highlight the type of data you want to show, and press ENTER.
  • Page 52 4. Press up or down on the ROCKER to highlight a setting, and press ENTER. 5. Press PAGE or QUIT to exit. Additional Map Data You can view the data currently loaded on your GPSMAP 378/478 unit and data card. To review/change map information: 1. On the Map Page, press MENU.

  • Page 53: Map Orientation

    Press the OUT key to zoom out; press the IN key to zoom in. Both the GPSMAP 378/478 have a built-in worldwide land database. The GPSMAP 378 contains detailed maps of the U.S inland lakes and the GPSMAP 478 contains built-in BlueChart g2 charts. The GPSMAP 378/478 shows cartography as long as chart information is available for the zoom scale you selected.

  • Page 54: Panning The Map

    You can also use the arrow to select on-screen map items, which allows you to review a selected item directly from the map display. Panning Arrow data window: Shows the distance and bearing from your present location and arrow’s position coordinates. Panning the Map GPSMAP 378/478 Owner’s Manual...

  • Page 55: Clearing Unwanted Details From The Map

    3. Use the ROCKER to highlight the extra tabs and view the information. 4. Select an on-screen button and press ENTER. Press QUIT to exit the Information Page. GPSMAP 378/478 Owner’s Manual ARINE AGES AND Map Feature Information Page Clearing Unwanted Details from the Map You can remove items from the Map Page display (declutter the display) to remove unwanted items, such as highways.

  • Page 56: Compass Page

    “bug” on the outside of the compass ring. The course to steer represents the direction to steer to get back to the course line. Course to steer Data fields Compass Page in Marine Mode GPSMAP 378/478 Owner’s Manual indicator...

  • Page 57: Using The Marine Timer

    finally a one-minute final countdown. Then during the race, mariners might want to count up to keep track of their time. By default, all of these different countdowns can easily be performed with the GPSMAP 378/478 by pressing a few buttons. EATURES OMPASS...
  • Page 58 Timers sub tab. 3. Highlight Stop next to Marine to change the timer’s behavior. 4. Highlight the time field, press ENTER, and then use the ROCKER to enter a new time. Marine Timer on the Compass Page GPSMAP 378/478 Owner’s Manual...

  • Page 59: Highway Page

    A compass ribbon appears at the top of the page to show your current heading. The violet bar and the red vertical bar on the compass ribbon indicates the bearing to your course. GPSMAP 378/478 Owner’s Manual ARINE AGES AND To hide/show the Highway Page: 1.
  • Page 60 Set Up Highway—shows an options menu with two tabs: Line and Waypoint. Each tab has on/off settings for several options, such as enabling the line for the Active Leg and Track Log. of the “Appendix” for a listing of the data Set Up Highway GPSMAP 378/478 Owner’s Manual...

  • Page 61: Active Route Page

    Active Route Page When you initiate a route in the GPSMAP 378/478, the Active Route Page shows each point (waypoint or map item) of the active route, with the point name, course, distance, and several other fields of information. The current destination point, the active point, is marked with an arrow icon.

  • Page 62: Position Data Page

    Reset Odometer—clears the running total of the distance traveled since the odometer was last reset. Reset All—clears all trip information including the maximum speed and odometer. You can also select one of the following options: GPSMAP 378/478 Owner’s Manual in the...

  • Page 63: Xm Audio Page

    NOTE: You MUST have the optional GXM 30 antenna connected to your GPSMAP 378/478 and a subscription to XM Radio to use XM Radio features. Additionally, you must use the external speaker with 12/24-Volt Adapter, third-party FM modulator, speakers, or have headphones plugged in to hear the audio.
  • Page 64 Mute (Enable) Audio Output—enables you to turn audio output on or off. XM Audio Page Options Menu for more information. for more information. GPSMAP 378/478 Owner’s Manual...

  • Page 65: Using Favorites

    1. Highlight the Category list, and press ENTER. 2. Press up or down on the ROCKER to select the Favorites category, and press ENTER. GPSMAP 378/478 Owner’s Manual ARINE AGES AND 3. Press up or down on the ROCKER to highlight the channel you want to select from your list of favorites, and press ENTER.
  • Page 66 2. Highlight Mute Audio Output on the options menu to turn off the audio. A music note with a red slash appears in the Song pane. Highlight Enable Audio Output to resume audio output. Audio output is muted GPSMAP 378/478 Owner’s Manual...

  • Page 67: Basic Operation In Automotive Mode

    This section discusses some of the more common Automotive operations you will perform with your GPSMAP 378/478 in Automotive Mode. Note that many common operations, such as marking a waypoint and creating a route, are performed the same way as in Marine Mode.

  • Page 68: Navigating In Automotive Mode

    3. Follow the magenta route created on the Map Page. Follow the turn-by-turn route (auto-route) by using the Next Turns Page and Current Route Page. If you are using the external speaker, follow the voice prompts. Navigate Menu With Map Feature highlighted GPSMAP 378/478 Owner’s Manual...
  • Page 69 Waypoint Review Page Activating a Go To using the Find menu 5. Highlight the Go To button, and press ENTER to begin navigation. GPSMAP 378/478 Owner’s Manual ASIC PERATION IN UTOMOTIVE To go to a destination using the Find menu: 1.

  • Page 70: Following A Saved Route

    1. While navigating to a point, press NAV. Navigate Menu in Automotive Mode 2. Use the ROCKER to highlight Stop Navigation, and press ENTER. To resume navigation: 1. Press NAV. 2. Use the ROCKER to highlight Resume Navigation, and press ENTER. GPSMAP 378/478 Owner’s Manual...

  • Page 71: Editing Your Route

    Press ENTER to select the first point. 6. Move the arrow to the end point, and press ENTER. During route calculation and navigation, the GPSMAP 378/478 will avoid the area within the box or the selected area of the road.

  • Page 72: Creating A Detour

    DITING Creating a Detour If there is road construction or some other form of a detour while navigating a route, you can have your GPSMAP 378/478 create a detour route for you. To create a detour: 1. While navigating a course, press NAV.

  • Page 73: Following An Automotive Route

    Following an Automotive Route The GPSMAP 378/478 guides you to your destination using many tools, such as the Map Page and Current Route Page. Track Your Progress with the Map Page You can track the progress of your route on the Map Page. Your route is shown with a magenta line.

  • Page 74: Automotive Mode Pages And Features

    The top of the screen shows the GPS status or the route leg. You can also add data fields to the page or select a full-screen map without data fields.

  • Page 75: Current Route Page

    Current Route Page Whenever you activate a route in the GPSMAP 378/478 in Automotive Mode, the Active Route Page shows each turn of the active route, with the distance to the turn, the street name, and estimated time to arrival and time of arrival. As you navigate a route, the turn list automatically updates to indicate the next turn at the top of the list.

  • Page 76: Trip Computer Page

    Trip Computer Page Reset the Trip Computer before beginning a trip. If you make frequent stops, leave the GPSMAP 378/478 turned on in order to receive satellites. This allows the unit to accurately measure elapsed time during the trip.

  • Page 77: Main Menu

    The GPSMAP 378/478’s Main Menu provides access to various waypoint, system, navigation and interface management, and setup menus. The Main Menu is accessible from any page by pressing the MENU key twice. Main Menu To select a tab from the Main Menu: 1.

  • Page 78: Weather Tab

    “Using XM WX The Audio sub tab shows XM Radio channel categories, a list of available channels, information about the selected channel, and the strength of the XM signal. Channels Category name Signal strength indicator Main Menu—XM Tab GPSMAP 378/478 Owner’s Manual...

  • Page 79: Route Tab

    For more information about XM Weather, see the Weather” section beginning on page 96. GPSMAP 378/478 Owner’s Manual Route Tab Use the Route tab create and store up to 50 reversible routes, with up to 300 points each. See the...

  • Page 80: Points Tab

    The Active sub tab is for the active log (the log currently being recorded.) It shows the amount of track memory used and current settings. Saved Sub Tab The Saved sub tab shows a list of all saved tracks in your unit. “Managing Your Tracks” GPSMAP 378/478 Owner’s Manual...

  • Page 81: Dsc Tab

    GPSMAP 378/478 Owner’s Manual Understanding Distress Calls With your GPSMAP 378/478 properly connected to a VHF radio with DSC output, you can receive any DSC distress call within range. An alert message appears and a tone sounds when a distress call is received.
  • Page 82 Log, with the latest call at the top. The unit can store up to 100 calls; after 100 calls are received, the oldest log file is removed when a new call is received. Press MENU to sort the list and delete entries. GPSMAP 378/478 Owner’s Manual...

  • Page 83: Receiving A Position Report Or Distress Call

    The DSC Directory acts much like a phone book and can hold up to 50 entries. Pressing MENU from this page allows you to add a New Item, Delete a highlighted entry, or Delete All entries. GPSMAP 378/478 Owner’s Manual DSC Directory entries. Press...

  • Page 84: Setting Up Dsc

    Another way to input a name is from the Entry Review Page or the DSC Distress Call or DSC Position Report pages. The Name and MMSI are sent to other Garmin GPS units: Only the MMSI numbers are sent to other non-Garmin DSC users.

  • Page 85: Sonar Tab

    Sonar setup options. Main Menu—Sonar Tab GPSMAP 378/478 Owner’s Manual Alarms Tab Use the Alarms tab to define alarm settings. When an alarm goes off, the alarm message appears on the display and the unit emits five (5) beeps.

  • Page 86: System Alarms

    Select On, and then enter a specific voltage. DGPS—sets an alarm to sound when the unit loses a differential fix. Accuracy—sets an alarm to sound when GPS accuracy falls outside of the user-set value. Select On and then enter a specific distance. Weather Alarms The Weather sub tab contains the following alarms: Tornado Warnings—sets an alarm to sound when you enter an area...

  • Page 87: Calendar Tab

    Drift—sets an alarm to sound when you exceeded a specified drift distance. Select On and then enter a specific distance. Fish—sets an alarm to sound when fish are detected with sonar. GPSMAP 378/478 Owner’s Manual Calendar Tab Use the Calendar tab to plan trips, view sun and moon, and hunting and fishing information for the day.

  • Page 88: Celestial Tab

    Main Menu—Celestial Tab To access the Celestial tab: 1. Press MENU twice to open the Main Menu. 2. Highlight the Celestial tab. 3. Use the ROCKER to select the sub tab you want, such as Sun & Moon. GPSMAP 378/478 Owner’s Manual...

  • Page 89: Tide Sub Tab

    The bottom of the page indicates the times with the highest and lowest tides. GPSMAP 378/478 Owner’s Manual To view a tide chart for a different tide station: 1. From the Tide sub tab, highlight the At field, and press ENTER.
  • Page 90 To use the current date again, highlight the Date field. Press MENU, highlight Use Current Date, and press ENTER. Select the date and location Animation controls for the sky view Sun & Moon Sub Tab GPSMAP 378/478 Owner’s Manual Moon phase Location of the sun and moon in the sky view...
  • Page 91 2. Press up or down on the ROCKER to highlight the Celestial tab. 3. Use the ROCKER to select the Hunt & Fish sub tab. GPSMAP 378/478 Owner’s Manual Hunt & Fish Sub Tab To view hunt and fish information for a different date: 1.

  • Page 92: Message Tab

    Message Tab The Message tab shows a list of messages generated by the GPSMAP 378/478. Use the ROCKER to scroll through the entire list of messages on the Log sub tab. Use the Log Filter sub tab to show only the message types that you want to view.

  • Page 93: Display Tab

    ENTER. The message name appears in the Hide window. 5. Highlight the message, and press ENTER to show it again. GPSMAP 378/478 Owner’s Manual Display Tab Use the Display tab on the Main Menu to set display features, such as which pages to show in the main page sequence and how long the backlight stays on.

  • Page 94: Sound Tab

    Voice Prompt—sets the vocal prompt to operate for Guidance and Status, Route Guidance Only, or No Voice Prompts. Voice Language—sets the language for vocal prompts. Speaker Volume—sets the external speaker or headphone volume. GPSMAP 378/478 Owner’s Manual...

  • Page 95: Setup Tab

    Setup Tab To customize how your GPSMAP 378/478 looks, use the System tab to adjust certain system settings. System Sub Tab Use the System sub tab to control settings for system mode, speed filter, language, and external power. To access the System sub tab: 1.
  • Page 96 Custom Road Prefs—allows you to avoid or use Major, Medium, and Minor roads using a slider scale. This is useful if you want to avoid major highways, for example. Select Reset to use preset values. GPSMAP 378/478 Owner’s Manual...
  • Page 97 Next Turn Pop-up—turns the Next Turn pop-up window Off, or opens the window when you press NAV (Held NAV Key Only), opens automatically (Automatically Only), or Both. GPSMAP 378/478 Owner’s Manual Timers Sub Tab Use the Timers sub tab to set timers and view information about how long the unit has been on.
  • Page 98 UTC Offset. If the wrong date appears, press MENU, highlight Set Date, and press ENTER. You are prompted to enter the current year. The GPSMAP 378/478 uses this information when gathering satellite data to display the correct date. Units Sub Tab Use the Units sub tab to customize measurement units.

  • Page 99: Location Sub Tab

    Only change the datum if you are using a map or chart that specifies a different datum. GPSMAP 378/478 Owner’s Manual The default setting is WGS 84. The unit automatically selects the best datum depending on your chosen location format.
  • Page 100 ENTER again. 3. To display the welcome message when you turn on your GPSMAP 378/478, highlight the Show at Power-up check box, and press ENTER to select it. To hide the welcome information at start-up, clear the check mark.
  • Page 101 If you select GARMIN DGPS or RTCM In/NMEA Out format, you can control a differential beacon receiver directly from your GPSMAP 378/478 using the Interface sub tab. You can have the unit automatically scan for the DGPS beacon signal, or you can enter the beacon frequency and bit rate on the unit, and the information will be used to tune the beacon receiver.
  • Page 102 2. Highlight Restart Scan, and press ENTER. To manually enter a frequency and bit rate: 1. With the unit set to Garmin DGPS or RTCM In/NMEA Out, use the ROCKER to highlight the Beacon field, and press ENTER. 2. Highlight User, and press ENTER.

  • Page 103: Advanced Nmea Output Setup

    Use the Advanced NMEA Output Setup Page to set the output rate, change the precision of the Lat/Lon minutes, set Waypoint IDs to names or numbers, and turn on and off the GPS status, the Garmin Proprietary sentences, and Waypoint/Route (WPL, RTE).

  • Page 104: Using Xm Wx Weather

    GPSMAP 378/478 is in Simulator Mode (see page 12) and the GXM 30 antenna is unplugged. You can view XM WX Weather on your GPSMAP 378/478 in one of three ways: • To view all weather information on the map, Use the Map Page.
  • Page 105 Srfc Wx, or Mrn Wx tab. 4. Press up or down on the ROCKER to highlight the field you want to change, and press ENTER. 5. Press PAGE or QUIT to exit. GPSMAP 378/478 Owner’s Manual SING EATHER ETTING Weather Tab Use the Weather tab to turn XM WX Weather data on or off on the Map Page, and set the map scale at which weather information first...
  • Page 106 Water Temperature, Wave Period, Wave Direction, Wave Height, Marine Warnings—sets the map scale at which each feature first appears on the Map Page. Select Auto, Off, or from 20 ft to 800 nm. Mrn Wx Tab GPSMAP 378/478 Owner’s Manual...

  • Page 107: Using The Weather Tab

    Weather information type Weather Tab with Storm Cells GPSMAP 378/478 Owner’s Manual To view a specific XM WX Weather Information Type: 1. Press MENU twice to open the Main Menu. 2. Use the ROCKER to highlight the Weather tab.
  • Page 108 Weather Legend—shows the color legend for Radar, Fronts, County Warnings, and Other features. Press right or left on the ROCKER to view each weather legend. Weather Legend GPSMAP 378/478 Owner’s Manual...
  • Page 109 Weather Products—shows a list of all weather features you can access based on your subscription plan. Displays age of weather data in minutes. GPSMAP 378/478 Owner’s Manual SING EATHER Accessing GXM 30 Antenna Information Use the Information sub to obtain version information about your GXM 30 antenna.

  • Page 110: Finding Weather Information

    3. Highlight the Forecast tab to view the weather forecast for your current location. “Finding 4. Highlight the Sea Surface tab to view sea surface information. Forecast high temperature Chance of precipitation Forecast low temperature Weather Forecast Sea Surface Information GPSMAP 378/478 Owner’s Manual...
  • Page 111 Marine Weather Bulletins You can highlight a weather bulletin and press ENTER to view the full text of the marine weather bulletin. Marine Weather Bulletin GPSMAP 378/478 Owner’s Manual SING EATHER You can find weather forecast information for a different location.

  • Page 112: Setting Up And Using Sonar

    SING This section covers the additional sonar options for the GPSMAP 378/478 when used in conjunction with a GSD 21 or GSD 20 Sounder Module. Read the GSD 21 or GSD 20 Sounder Module Installation Instructions to properly install the sounder module.

  • Page 113: Using The Sonar Page

    Using the Sonar Page When combined with a GSD 21 or GSD 20 Sounder Module, your GPSMAP 378/478 becomes a powerful fishfinder/flasher with the Sonar Page. If a GSD 21 or GSD 20 is attached, but the unit does not detect a transducer, a “Sonar Turned Off” message appears across the Sonar Page.

  • Page 114: Adjustment Options

    If you are sitting still or the sonar display is moving too fast, slow the scroll rate or pause the scrolling. Range—sets the display depth range used for viewing. The unit can be set to automatically track the bottom or set to a user-specified depth range. Sonar Adjustments GPSMAP 378/478 Owner’s Manual...
  • Page 115 TIP: Quickly zoom in and out of the Sonar display by pressing the In and Out keys. Turn off the zoom function by pressing the Out key until the No Zoom setting appears. GPSMAP 378/478 Owner’s Manual ETTING UP AND SING ONAR View/Span—changes the viewing range of a zoomed display.

  • Page 116: Resizing The Split Screen

    4. When you are done making changes, highlight OK and press ENTER. 5. To return to the standard Sonar Page, press QUIT; or press MENU, highlight Hide Pointer, and press ENTER. to reference sonar items and GPSMAP 378/478 Owner’s Manual...

  • Page 117: Setting Up Sonar

    Because sound waves travel through fresh and salt water at different rates, it is necessary to select the water type to ensure accurate readings on the unit. GPSMAP 378/478 Owner’s Manual ETTING UP AND SING Depth Number—select how efficient the digital depth update rate is.

  • Page 118: Calibrating The Water Speed

    Speed shown on your unit is accurate. The calibration should take place in water having little or no current. The unit automatically uses the GPS ground speed, if it is available, for comparison on the calibration. If a GPS ground speed is not available, use either your boat’s speedometer reading (not always...

  • Page 119: Setting Up The Sonar Display

    Scale—select how and where you want the depth scale to appear. Color Bar—select On to show a gradient scale of the current Target Level setting on the Sonar Setup tab. GPSMAP 378/478 Owner’s Manual ETTING UP AND SING Flasher—select On to show a graphic Flasher representation on the far right side of the sonar display.

  • Page 120: Viewing The Temperature

    Temp as the Transducer type on the Setup sub tab. NOTE: You must be receiving proper sonar data from another device, such as a Garmin GSD 20 or GSD 21 Sounder Modules, to view temperature information. To access the Temperature sub tab: 1.

  • Page 121: Understanding Sonar

    The transducer collects the reflected sound waves and sends the data to the GSD 21 or GSD 20 Sounder Modules and then to the GPSMAP 378/478 to be processed and shown. The underwater data is shown on the Sonar display in the order that it is returned;...

  • Page 122: Transducer Coverage

    6-foot diameter 40° Cone Angle (50 kHz) 10° Cone Angle (200 kHz) circle at a 30-foot depth. Dual frequency mode combines both frequencies to get the best coverage area and contour/depth readings. GPSMAP 378/478 Owner’s Manual...
  • Page 123 Thermoclines are shown as the weakest colors. One of the unique features offered by Garmin is See-Thru technology, which allows the GPSMAP 378/478 to hear both weak and strong signals simultaneously so it can identify fish returns under the toughest conditions, such as suspended in thermoclines or even hiding near structures.

  • Page 124: Appendix

    15 meters (49 feet) RMS 95% typical DGPS (USCG): 3–5 meters (10–16 ft), 95% typical DGPS (WAAS): < 3 meters (10 ft) 95% typical with DGPS corrections Velocity: 0.1 knot RMS steady state Dynamics: 6 g's GPSMAP 378/478 Owner’s Manual...

  • Page 125: Optional Accessories

    USB Data Card Programmer: Programs blank data cards at high speed through a PC. Carrying Case: Protects the GPSMAP 378/478 when not in use; has storage space for data cards. Protective Cover: Snaps on the front of the unit to protect the screen from damage.

  • Page 126: Installation Information

    GPSMAP 378/478 to auxiliary devices and removing the antenna. Connecting the Power/Data Cable The power/data cable connects the GPSMAP 378/478 to an 11–35 VDC system and provides interface capabilities for connecting external devices. The color code in the diagram below and to the right indicates the appropriate harness connections.
  • Page 127 Connecting the Optional GXM 30 Antenna Connect the optional GXM 30 antenna to the GPSMAP 378/478 to access XM WX satellite weather and XM Radio. For more information about the GXM 30 antenna, see the GXM 30 Owner’s Manual. NOTE: You must subscribe to XM Radio and/or XM WX Satellite Weather to use the XM Radio and/or XM Weather features on your GPSMAP 378/478.

  • Page 128: Information About Usb Drivers

    NFORMATION Connecting Your GPSMAP 378/478 to a Computer You can connect your GPSMAP 378/478 to your computer using the supplied USB cable to connect to a USB data port or the PC Interface cable to connect to a DB-9 serial communications port.

  • Page 129: Using Ximage For Customized Waypoint Icons

    Installing and Removing Data Cards The GPSMAP 378/478 uses an optional Garmin data card to display digital charts and maps. Install the data card in the card slot located on the bottom of the unit. Install or remove the data card at any time, whether the unit is on or off.

  • Page 130: What Is Differential Gps (Dgps)

    GPBOD, GPRTE, and GPWPL. The following are the Proprietary Sentences for NMEA 0183, version 3.01 output: PGRME, PGRMZ, and PGRMM. The GPSMAP 378/478 also includes NMEA input with support for the BWC, DBT, DPT, DSC, DSE, MTW, VHW, VTG, and XTE sentences.

  • Page 131: Satellite Information

    The DGPS system is available for use without a fee, but you do need additional equipment to receive DGPS signals; a beacon receiver compatible with the RTCM format sentences supported by your Garmin GPS is needed to use DGPS. Refer to the United States Coast Guard’s Web site (www.navcen.uscg.gov/)
  • Page 132 SBAS system should be capable of providing your GPS unit with increased accuracy at any location in the world. Currently, enabling WAAS on your Garmin GPSMAP 378/478 in regions that are not supported by ground stations may not improve accuracy, even when receiving signals from an SBAS satellite.

  • Page 133: Loran Td Setup

    Setup TD field, the active waypoint information will reflect those changes. Because the GPSMAP 378/478 does not rely on the LORAN signal for navigation, it can reference a different GRI chain and/or secondary stations and still navigate to the location stored in memory.
  • Page 134 Because of this, the unit can navigate to a TD coordinate anywhere in the world. For more information on LORAN TDs, you can download the LORAN TD Position Format Handbook from the Garmin Web site. GPSMAP 378/478 Owner’s Manual...

  • Page 135: Map Datums And Location Formats

    Every chart has a map datum reference, and you can set the GPSMAP 378/478 to match most of those commonly used. GPSMAP 378/478 Owner’s Manual...

  • Page 136: Digital Selective Calling (Dsc)

    Coast Guard when used in an emergency distress call. To obtain a MMSI number, users must register their VHF radio with the FCC (Form 605). Garmin does not supply this number! For more information regarding MMSI numbers, visit www.navcen.uscg.gov/marcomms/gmdss/mmsi.htm.

  • Page 137: How Are Mmsi Assignments Obtained

    When the GPSMAP 378/478 is connected to a VHF with DSC support, the GPS unit displays a call list, log, and a directory. Basic wiring is required for the Garmin unit and VHF radio to send and receive NMEA data from each other.

  • Page 138: Messages

    Memory Full—unit memory is full, no further data can be saved. Memory (RAM) Failed Unit Needs Repair—there is an internal problem with your unit. Contact Garmin Product Support to have the unit serviced. Memory (ROM) Failed Unit Needs Repair—there is an internal problem with your unit.
  • Page 139 Water Alarm. Sonar Failed Unit Needs Repair—there is an internal problem with the unit. Contact Garmin Product Support to have the unit serviced. Sunrise, Switching to Day Mode—the unit is switching to Day Mode. Sunset, Switching to Night Mode—the unit is switching to Night Mode GPSMAP 378/478 Owner’s Manual...

  • Page 140: Data Field Options

    Elevation—the altitude (height) above or below mean sea level (MSL). GPS Status—the current status of the GPS receiver, such as “3D GPS.” Location (Lat/Lon)—your current location as latitude/longitude coordinates. Location (Selected)—your current location described in the selected units of measure (other than lat/lon).
  • Page 141 Vertical Speed—the rate of climb or descent. Voltage—the direct current voltage level of an external power source. GPSMAP 378/478 Owner’s Manual Water Speed (Marine Only)—the data acquired from measurement devices interfaced to the unit is used to calculate your current speed over water.

  • Page 142: Software License 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 143: 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 144: Weather Data Warranty

    If you use XM Services it is your responsibility to exercise prudent discretion and observe all safety measures required by law and your own common sense. 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 145: Xm Satellite Radio Service Agreement

    The user agrees to hold harmless the United States National Geospatial-Intelligence Agency. The user’s sole and exclusive remedy is to stop using the DAFIF product. GPSMAP 378/478 Owner’s Manual PPENDIX ATELLITE XM Satellite Radio Service Agreement XM Satellite Radio Inc.

  • Page 146: Fcc Compliance

    PPENDIX OMPLIANCE FCC Compliance The GPSMAP 378/478 complies with Part 15 of the FCC interference limits for Class B digital devices FOR HOME OR OFFICE USE. These limits are designed to provide more reasonable protection against harmful interference in a residential installation, and are more stringent than “outdoor” requirements.

  • Page 147: Index

    87 weather 78 beeper 86 alarms tab 77 bug indicator 49 alerts. See alarms GPSMAP 378/478 Owner’s Manual connecting the GXM 30 antenna 119 connecting the power cable 2, 118 cable 118 contact Garmin 133 calculation method 88...
  • Page 148 91, 126 highway page 51, 86 log filter 85 hiding/showing 51 longitude 131 options menu 52 LORAN TD Setup 124 page layout 52 lost satellite reception 5 setup 52 hunt & fish sub tab 83 hurricanes 97 GPSMAP 378/478 Owner’s Manual...
  • Page 149 47 setup 43 NAV/MOB 16 marine mode navigate navigating 14 route 14, 21 pages 42–46 track 14, 16, 39 GPSMAP 378/478 Owner’s Manual navigation resuming 62 page layout 43 stopping 62 highway 52 navigation alarms 78 trip computer 68 near...
  • Page 150 & moon sub tab 82 track up 6, 45 surface pressure 98 transducer 109, 114 surface winds 98 trip computer page 54, 68 switch modes 13, 59 options menu 68 system alarms 78 page layout 68 GPSMAP 378/478 Owner’s Manual...
  • Page 151 98 user points tab 31 wave UTC 90 direction 98 UTM/UPS 126 height 98 period 98 GPSMAP 378/478 Owner’s Manual waypoint 17, 25 categories 32 xImage 121 create 25–35 XM Audio Page 55–56 edit 31 audio on/off 58...
  • Page 154 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. © Copyright 2006 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151 Street, Olathe, Kansas 66062, U.S.A.

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