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.
NTRODUCTION ABLE OF ONTENTS Table of Contents Introduction ...i Caring for the GPSMAP 376C ... iv Warning ... v Caution ... vi Getting Started ...1 Unit Overview ... 1 Charging the GPSMAP 376C ... 2 Turning On the GPSMAP 376C ... 3 Getting Satellite Signals ...
Viewing XM WX Weather ... 95 Setting XM WX Weather Options ... 95 Using the Weather Tab ... 98 Finding Weather Information ... 101 GPSMAP 376C Owner’s Manual NTRODUCTION Setting Up and Using Sonar ...103 Showing Sonar on the Map Page ... 103 Using the Sonar Page ...
Cleaning the Screen The GPSMAP 376C 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.
field of deployment. Always operate the vehicle in a safe manner. Do not become distracted by the GPSMAP 376C while driving, and always be fully aware of all driving conditions. Minimize the amount of time spent viewing the screen of the GPSMAP 376C while driving and use voice prompts when possible.
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.
With the included GXM 30 antenna and a subscription to XM WX Satellite Weather, boaters will have constant access to NEXRAD radar, lightning, wind speed, wave direction, and more. In addition, the GPSMAP 376C offers XM Satellite Radio capabilities featuring more than 150 digital channels of commercial-free music;...
Charging the GPSMAP 376C Before using the unit, you may need to charge the battery in the GPSMAP 376C. 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.
Turning On the GPSMAP 376C The first time you turn on your new GPSMAP 376C, the GPS receiver must collect satellite data and establish its current location. To ensure proper initialization, the GPSMAP 376C is shipped from the factory in AutoLocate mode, which allows the receiver to “find itself”...
ATELLITE IGNALS Getting Satellite Signals After you turn on the GPSMAP 376C, the unit automatically begins searching for satellites. 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 376C 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 376C 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.
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.
Using the GPSMAP 376C 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.
This section explains how to enter and select information with the GPSMAP 376C. Understanding Terms The GPSMAP 376C’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.
3. Press ENTER to select the feature. Another window with more options might appear. If so, select an option and press ENTER again. Selecting an option from an options menu GPSMAP 376C Owner’s Manual ETTING TARTED To exit a menu or return to the previous setting: Press QUIT.
4. Highlight Restore Default, and press ENTER. Using the Databases Optional Garmin data cards and MapSource CD-ROMs enhance the versatility of your GPSMAP 376C. With optional MapSource City Select data, you can view listings of nearby restaurants, lodging, shopping centers, attractions and entertainment, and even retrieve addresses and phone numbers for any listed location.
Simulator Mode To help you get to know your GPSMAP 376C, 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.
Marine Mode. The following examples show the main pages in Marine Mode with optional MapSource BlueChart detailed maps. Marine Mode is the default mode for the GPSMAP 376C. This manual first addresses the page, such as the Map Page, as it appears in Marine Mode.
Marine Mode, you can initiate Man OverBoard (MOB) navigation, which places a waypoint in the location and then navigates you back to that location. You can also initiate navigation through the Find menu. GPSMAP 376C Owner’s Manual ASIC PERATION IN ARINE...
Page 22
Tide Stations from this list. The steps vary only slightly from those listed for Waypoints.) 4. Select a waypoint from the list, and press ENTER to open the Waypoint Review Page. 5. With the Go To button highlighted, press ENTER to begin navigation. Waypoint Review Page GPSMAP 376C Owner’s Manual...
Page 23
4. Press ENTER when the Go To button is highlighted. For complete information about finding an item, see the Item” section. GPSMAP 376C Owner’s Manual ASIC PERATION IN Man OverBoard (MOB) Use the MOB function to simultaneously mark your current location and create a direct route back to that location for quick response to emergency situations.
3. Using the ROCKER, highlight an item from the list, and press ENTER. The item’s information page automatically opens, allowing you to save the item as a waypoint, show the item on the map, or automatically create a route to (Go To) the item. GPSMAP 376C Owner’s Manual...
Find From list. 5. Select a reference location on the map, and press ENTER. The list shows items nearest to the new map location. GPSMAP 376C Owner’s Manual ASIC PERATION IN To find an item near another item: 1.
Near Next—compiles the Find items lists based on the next turn in the route. Near Destination—compiles the Find items lists based on the route destination. Near Current Route—compiles the Find items lists based on the active route. GPSMAP 376C Owner’s Manual...
Creating and Using Routes The GPSMAP 376C lets you create and store up to 50 reversible routes, with up to 300 points each. Creating a Route Use the Route tab on the Main Menu to create routes. Routes can be created in two ways. The first way is to select waypoints from the Find Menu, allowing you to see a list of the route points as you create the route.
1. In Automotive Mode, press the NAV key. 2. Use the ROCKER to highlight Navigate Route and press ENTER. 3. Highlight a route and press ENTER. Select a route from list Select the route you want to take. GPSMAP 376C Owner’s Manual...
Route name here Route Review Page 4. Use the ROCKER to enter the route name, and press ENTER. GPSMAP 376C Owner’s Manual ASIC PERATION IN ARINE To review individual route points: 1. Press MENU twice to open the Main Menu. Highlight the Route tab.
Page 30
6. If the New Waypoint Page opens, edit the waypoint as needed, highlight OK, and press ENTER. 7. Repeat steps 4 through 6 until all points are added to the route. Press QUIT when finished. Editing the route on the map GPSMAP 376C Owner’s Manual...
You can enter information about your trip so the GPSMAP 376C 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. Entering Speed and Fuel Flow for trip planning 3.
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 376C stores up to 3,000 alphanumeric waypoints with a user-defined icon, comment, elevation, depth, and temperature available for each waypoint.
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 376C uses the map item text shown on the map as the default name and symbol for the new waypoint.
Repeat until the new location is entered. To change any of the other information on the New Waypoint Page, highlight the appropriate field and press ENTER. After entering your changes, highlight OK and press ENTER. GPSMAP 376C Owner’s Manual...
MapSource or BlueChart feature, the Waypoint Review Page might include additional tabs containing information about the other features at that location. Waypoint Review Page GPSMAP 376C Owner’s Manual ASIC PERATION IN ARINE To access the Waypoint Edit Page: 1.
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.
ROCKER. 4. Press MENU to open the New Waypoint Page options menu. 5. Highlight Project Location, and press ENTER. Project Location Menu Enter the distance, bearing, and location. GPSMAP 376C Owner’s Manual ASIC PERATION IN ARINE REATING AND 6. To change the location from which you are projecting the new waypoint, highlight the From field, and press ENTER.
1. After you have edited the waypoint on the Waypoint Edit Page (shown above), highlight Next and press ENTER. The Waypoint list appears with the next waypoint highlighted. 2. Press ENTER to edit that waypoint. Name field Waypoint Page GPSMAP 376C Owner’s Manual...
3. Use the ROCKER to highlight Add, and press ENTER. Entering a new category 4. Use the ROCKER to enter a name for the category. 5. Highlight Save, and press ENTER. GPSMAP 376C Owner’s Manual ASIC PERATION IN ARINE Now, when you create or edit a waypoint, you can select the category from the Category list on the Waypoint Page.
To delete waypoints by symbol or category: 1. From the User Points tab, highlight the waypoint you want to delete, and press MENU. 2. Highlight Delete by Symbol or Delete by Category, and press ENTER. Deleting a waypoint GPSMAP 376C Owner’s Manual...
OK is highlighted, press ENTER. 5. Highlight Delete and press ENTER to delete all waypoints within the set location. Choose Cancel or press QUIT to exit without deleting the waypoints. GPSMAP 376C Owner’s Manual ASIC PERATION IN ARINE Proximity Points Use the Proximity Points tab to define an alarm circle around a...
Page 42
4. To clear a single alarm, highlight Remove Point, and press ENTER. To clear all proximity waypoints, select Remove All, and press ENTER. 5. Use the ROCKER to highlight OK, and press ENTER to confirm. Proximity Points Tab Options Menu GPSMAP 376C Owner’s Manual...
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 376C 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 44
5. Select a beginning point and press ENTER. Select an ending point and press ENTER. The Track Review Page automatically opens. 6. Highlight OK and press ENTER to save the track. 7. Press QUIT to exit. Saving a portion of the track log GPSMAP 376C Owner’s Manual...
To edit a track: 1. Press MENU twice to open the Main Menu. 2. Highlight the Track tab. Press the ROCKER right to highlight the Saved sub tab. GPSMAP 376C Owner’s Manual ASIC PERATION IN ARINE 3. Highlight the track you want to edit, and press ENTER. The Track Review Page opens.
(TracBack to), and press ENTER. RACKS TracBack Tips When a TracBack is initiated, the GPSMAP 376C 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.
Following a Marine Route After you activate a route, the GPSMAP 376C automatically starts guiding you to the destination using a variety of tools and pages. See 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 48
To stay on course, steer toward the violet bar (or arrows) until it is aligned with the red bar. For more information see the section beginning beginning on page “Position Data Page” section Position Data Page GPSMAP 376C Owner’s Manual...
GPSMAP 376C always turns on in position mode, with the last known location centered on the map. When you press the ROCKER, the GPSMAP 376C enters pan mode, which moves the map to keep the white arrow (map pointer) within the display area.
Page 50
Use the Set Up Map option to adjust how items appear on the Map Page. To change a map setup option: 1. On the Map Page, press MENU to open the options menu. 2. Highlight Set Up Map, and press ENTER. Changing a data field GPSMAP 376C Owner’s Manual...
Page 51
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 376C unit and data card. To review/change map information: 1. On the Map Page, press MENU.
The system has a built-in worldwide database, with more detailed coverage available through the use of the BlueChart or MapSource data. The GPSMAP 376C shows cartography as long as chart information is available for the zoom scale you selected. Map coverage conforms to the following conditions: •...
To pan the map: Press up, down, right, or left on the ROCKER. The panning arrow moves the map so you can view different parts of the map. GPSMAP 376C Owner’s Manual ARINE AGES AND Map feature highlighted...
1. On the Map Page, press MENU to open the options menu. 2. Use the ROCKER to highlight Declutter, and press ENTER. 3. Press ENTER again to return the detail to the map display. Map Feature Information Page GPSMAP 376C Owner’s Manual...
5. Press QUIT to finish. GPSMAP 376C Owner’s Manual ARINE Compass Page During active navigation, the Compass Page guides you to your destination with a graphic compass display and a bearing pointer.
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 count downs and count ups can easily be performed with the GPSMAP 376C by pressing a few buttons. GPSMAP 376C Owner’s Manual...
Page 57
2. Press ENTER to start the timer. Use the ROCKER during the timing to quickly select a different length of time. 3. Press ENTER to stop timing. GPSMAP 376C Owner’s Manual ARINE AGES AND Marine Timer on the Compass Page As discussed previously, the timer is set to count down five minutes.
Nearby waypoints not in the active route can also be displayed. You can zoom in or out to display a larger or smaller view of the highway. To change the highway perspective scale: Press IN to zoom in; press OUT to zoom out. GPSMAP 376C Owner’s Manual...
Page 59
1. Press PAGE repeatedly until the Highway Page appears. 2. Press MENU. 3. Use the ROCKER to highlight an option, and press ENTER. Highway Page Options Menu GPSMAP 376C Owner’s Manual ARINE AGES AND The following options are available from the Highway Page options menu: Set Up Page Layout—choose the number of data fields that appear...
EATURES CTIVE Active Route Page When you initiate a route in the GPSMAP 376C, 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.
Press PAGE repeatedly to open the Position Data Page. Your present location is 5.6 nm west of Coronado, CA Position Data Page GPSMAP 376C Owner’s Manual ARINE AGES AND EATURES Position Data Page Options With the Position Data page open, press MENU to open the options menu.
NOTE: You MUST have a GXM 30 antenna connected to your GPSMAP 376C and a subscription to XM Radio to use XM Radio features. Additionally, you must use an optional external speaker with 12/24-Volt Adapter, third-party FM modulator, speakers, or have headphones plugged in to hear the audio.
Page 63
Press up or down on the ROCKER to scroll through the list of channels, highlight the channel you want, and then press ENTER. A triangle ( ) appears to the left of the channel currently playing. GPSMAP 376C Owner’s Manual ARINE AGES AND XM Audio Page Options Use the options menu to customize the XM Audio Page.
Delete All Favorites to delete all channels from your Favorites list. 3. Press ENTER. A confirmation message appears. 4. Highlight OK, and press ENTER again to confirm. Selected channel Favorites List GPSMAP 376C Owner’s Manual...
Page 65
4. Press ENTER. Each channel is played for five seconds and then advances to the next channel. 5. Press any key to stop scanning and select the current channel. GPSMAP 376C Owner’s Manual ARINE AGES AND Turning Audio On or Off You can mute or enable audio output.
UTOMOTIVE This section discusses some of the more common Automotive operations you will perform with your GPSMAP 376C in Automotive Mode. Please note that many common operations, such as marking a waypoint and creating a route, are performed the same way as in Marine Mode.
• Press the NAV key to activate a new route using the Find Menu, or activate a saved route or track. • Press the FIND key to search for a particular item and create a route to it. GPSMAP 376C Owner’s Manual ASIC PERATION IN UTOMOTIVE...
Page 68
3. Highlight the item you want from the list, and press ENTER. 4. Highlight the Go To button, and press ENTER. For complete information about finding an item, see the Item” section on page 16. “Finding an GPSMAP 376C Owner’s Manual...
5. Highlight Follow Roads, and press ENTER to create a turn-by-turn route (auto-route), which appears in the Current Route Page. You can also initiate a saved route from the Route tab on the Main Menu. GPSMAP 376C Owner’s Manual ASIC PERATION IN UTOMOTIVE Stopping and Resuming Navigation At any time when you are navigating to a point, you can stop navigation.
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 376C will avoid the area within the box or the selected area of the road.
Creating a Detour If there is road construction or some other form of a detour while navigating a route, you can have your GPSMAP 376C create a detour route for you. To create a detour: 1. While navigating a course, press NAV.
UTOMOTIVE OLLOWING AN Following an Automotive Route The GPSMAP 376C 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.
AGES AND EATURES Current Route Page Whenever you activate a route in the GPSMAP 376C 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.
Trip Computer Page Reset the Trip Computer before beginning a trip. If you make frequent stops, leave the GPSMAP 376C turned on in order to receive satellites. This allows the unit to accurately measure elapsed time during the trip.
The GPSMAP 376C’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.
For more information about XM Weather, see the Weather” section beginning on page 95. GPSMAP 376C Owner’s Manual XM Tab The XM tab is where you can view and select XM Radio channels, add or delete favorites, and obtain radio ID and XM WX Weather service level information.
Use the Route tab create and store up to 50 reversible routes, with up to 300 points each. See the beginning on page Age of weather report (in minutes) “Using XM WX “Creating and Using Routes” for more information about routes. Main Menu—Route Tab GPSMAP 376C Owner’s Manual section...
Proximity Sub Tab Use the Proximity sub tab to define an alarm circle around a stored waypoint location. GPSMAP 376C Owner’s Manual Track Tab Use the Track tab to specify whether or not to record a track log, define how it is recorded, or save the track log data for future use.
DSC Page Understanding Distress Calls With your GPSMAP 376C 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 81
3. Press ENTER to open the DSC Entry Review Page. DSC Entry Review Page GPSMAP 376C Owner’s Manual DSC Call List The Call List shows the 50 most recent calls, even if the unit is left unattended. The Call List only shows the most recent call from a vessel.
ENTER. Press MENU, highlight New Item, and press ENTER. 3. Enter the MMSI number, the name, and any comments. 4. When finished, highlight OK, and press ENTER. GPSMAP 376C Owner’s Manual Blank entry. Press ENTER to add a Directory...
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.
4. Change the setting to On (or the setting you want, where available) and press ENTER. If necessary, highlight the next field to the right and press ENTER, enter the settings you want, and press ENTER to finish. GPSMAP 376C Owner’s Manual...
Select On, then enter a distance. Anchor Drag—sets an alarm to sound when you exceed a specified drift distance. Select On, and then enter a distance. GPSMAP 376C Owner’s Manual System Alarms The System sub tab contains the following alarms: Clock—sets an alarm based on the unit’s clock.
To add a route (or point) to the calendar: 1. Press MENU twice to open the Main Menu. 2. Highlight the Calendar tab. The current day appears on the Day View sub tab. GPSMAP 376C Owner’s Manual Sunrise and set times for the current location...
Icons for the points and routes assigned to the date are shown along the bottom of the screen. GPSMAP 376C Owner’s Manual Celestial Tab The Celestial tab shows tide information, sun and moon information, and hunting and fishing information.
3. Press ENTER when finished. The unit shows the chart for the date you entered or selected. To use the current date again, highlight the Date field. Press MENU, highlight Use Current Date, and press ENTER. GPSMAP 376C Owner’s Manual...
Page 89
You can also use the play, fast forward, and stop buttons to view an animation of the Sun & Moon sub tab. GPSMAP 376C Owner’s Manual To view sun and moon information for a different date: 1. Use the ROCKER to highlight the Date field and press ENTER.
Page 90
3. Press ENTER when finished. The unit shows the information for the date you entered. To use the current date again, highlight the Date field. Press MENU, highlight Use Current Date, and press ENTER. GPSMAP 376C Owner’s Manual...
Message Tab The Message tab shows a list of messages generated by the GPSMAP 376C. 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.
Main Menu—indicates whether the Main Menu tabs to contain text and icons (default) or text tabs only. Color Mode—sets the display to Day, Night, or Auto color mode. Select Auto to automatically switch from day to night at sunset and change back at sunrise. GPSMAP 376C Owner’s Manual...
Backlight Intensity—turns the backlight up or down. Press right on the ROCKER to increase the intensity or left to decrease. GPSMAP 376C Owner’s Manual Sound Tab Use the Sound tab to customize the sounds made by the unit.
ETUP Setup Tab To customize how your GPSMAP 376C 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 95
Ask My Preference—determines whether you are asked to select a Route Preference before route calculations. GPSMAP 376C Owner’s Manual Calculation Method—sets how the unit searches for the route. • Quickest Calculation—calculates the route the quickest, but it might not produce the best route.
Page 96
Marine—appears on the Compass Page in Marine Mode. See page Since Midnight—shows the time the unit was turned on since midnight. To reset, select All Unit Defaults on the System sub tab. GPSMAP 376C Owner’s Manual...
Page 97
If the wrong date appears, press MENU, highlight Set Date, and press ENTER. You are prompted to enter the current year. The GPSMAP 376C uses this information when gathering satellite data to display the correct date. GPSMAP 376C Owner’s Manual Units Sub Tab Use the Units sub tab to customize measurement units.
You must update the magnetic variation as your location changes. Failure to update this setting can result in substantial differences between the information shown on your unit and external references, such as a magnetic compass. GPSMAP 376C Owner’s Manual...
Page 99
GPSMAP 376C Owner’s Manual 3. To display the welcome message when you turn on your GPSMAP 376C, 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 100
If you select GARMIN DGPS or RTCM In/NMEA Out format, you can control a differential beacon receiver directly from your GPSMAP 376C 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 101
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.
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).
GPSMAP 376C is in Simulator Mode (see page 11) and the GXM 30 antenna is unplugged. You can view XM WX Weather on your GPSMAP 376C in one of three ways: • To view all weather information on the map, Use the Map Page.
Page 104
Map Page. NEXRAD Radar, Satellite Mosaic, Lightning, Storm Cells, Hurricanes—sets the map scale at which the feature first appears on the Map Page. Select Auto, Off, or from 20 ft to 800 nm. Weather Tab GPSMAP 376C Owner’s Manual...
Page 105
Srfc Wx Tab Surface Winds, Surface Pressure, Fronts, Visibility, County 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. GPSMAP 376C Owner’s Manual SING EATHER ETTING...
1. In the Weather Information Type field, press up or down on the ROCKER to highlight Forecast. The Map window shows the current forecast in the Map window. window Age of the weather report window Forecast Map GPSMAP 376C Owner’s Manual...
Page 107
1. Press MENU twice to open the Main Menu. 2. Highlight the Weather tab, and press MENU. Declutter On (Off)—allows you to toggle unwanted weather items on or off on the Map window. GPSMAP 376C Owner’s Manual SING EATHER Animate Weather (Stop Animation)—animates NEXRAD Radar and Satellite Mosaic weather.
Page 108
3. Press right on the ROCKER to select the Information sub tab. 4. Press MENU. 5. With Antenna Information highlighted, press ENTER. A window appears displaying the software version loaded to your GXM 30 antenna. 6. Press ENTER to close the window. GPSMAP 376C Owner’s Manual...
1. From any page, press FIND. 2. Select Weather Data, and press ENTER. The Weather From Current Location Page appears. Weather From Current Location GPSMAP 376C Owner’s Manual SING 3. Highlight the Forecast tab to view the weather forecast for your current location.
Page 110
3. Move the map pointer to a different location, and press ENTER. The Weather From (New Location) Page appears with weather information for the selected location. 4. Press MENU, highlight Near Current Location, and then press ENTER to return to the forecast for your current location. GPSMAP 376C Owner’s Manual...
Read the GSD 20 Sounder Module Installation Instructions to properly install the sounder module. When you turn on your GPSMAP 376C, the Sounder Module automatically turns on. NOTE: You MUST have a GSD 20 installed and connected to your GPSMAP 376C to use the sonar features.
(Dual) on the other half. The current display mode appears at the bottom of each sonar display. Read the more on information about sonar. “Understanding Sonar” section beginning on page GPSMAP 376C Owner’s Manual...
You can also press MENU and highlight a shortcut setting to quickly change to commonly used settings and values. Press ENTER to accept the new setting (or press QUIT to cancel) and return to the Sonar Page. GPSMAP 376C Owner’s Manual ETTING UP AND SING ONAR...
Page 114
Set Whiteline at Normal or 1–100% to determine bottom hardness. See page Frequency—allows you to choose a transducer frequency. Frequency refers to the “pitch” of the sound that the transducer sends and receives. for more information. GPSMAP 376C Owner’s Manual...
ROCKER until the vertical width line shows, then press ENTER. 4. If you want to cancel this operation, press QUIT or press MENU, highlight Stop Resizing, and press ENTER. GPSMAP 376C Owner’s Manual ETTING UP AND SING ONAR Using the Pointer on the Sonar Page...
The Keel Offset is reflected in the depth reading. Transducer—select the type of transducer that you are using. If you are using a speed-capable transducer/sensor, select Temp, Spd. GPSMAP 376C Owner’s Manual...
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...
Sonar Page. Background Color—select the color for the Sonar Page and the sonar on the Map split. White Background Temperature Graph Graphic Flasher Sonar Page with the Sonar Display settings changed GPSMAP 376C Owner’s Manual Color Bar Depth Scale in corners...
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 Sounder Module, to view temperature information. To access the Temperature sub tab: 1.
The transducer collects the reflected sound waves and sends the data to the GSD 20 Sounder Module and then to the GPSMAP 376C to be processed and displayed. The underwater data is shown on the Sonar display in the order that it is returned; first returned is the first on the display.
6-foot diameter circle 40° Cone Angle (50 kHz) 10° Cone Angle (200 kHz) at a 30-foot depth. Dual frequency mode combines both frequencies to get the best coverage area and contour/depth readings. GPSMAP 376C Owner’s Manual...
Page 122
Thermoclines are shown as the weakest colors. One of the unique features offered by Garmin is See-Thru technology, which allows the GPSMAP 376C 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.
USB Data Card Programmer: Programs blank data cards at high speed through a PC. Carrying Case: Protects the GPSMAP 376C 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.
GPSMAP 376C to auxiliary devices and removing the antenna. Connecting the Power/Data Cable The power/data cable connects the GPSMAP 376C 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 126
NSTALLATION NFORMATION Connecting the GXM 30 Antenna Connect the GXM 30 antenna to the GPSMAP 376C 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 376C.
Connecting Your GPSMAP 376C to a Computer You can connect your GPSMAP 376C to your computer using the supplied USB cable to connect to a USB data port or the optional PC Interface cable to connect to a DB-9 serial communications port.
Installing and Removing Data Cards The GPSMAP 376C 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 129
BNC connector is exposed and ready for use with an external antenna. For information on connecting an external antenna to the GPSMAP 376C, refer to the installation instructions that came with the antenna. GPSMAP 376C Owner’s Manual...
GPS works in any weather conditions, anywhere in the world, 24 hours a day. There are no subscription fees or setup charges to use GPS. For more information see the Garmin Web site at and read the GPS Guide for Beginners, which is found garmin.com...
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 376C in regions that are not supported by ground stations may not improve accuracy, even when receiving signals from an SBAS satellite.
The LORAN TD (Time Delay) feature eases the transition from using LORAN to using GPS. The GPSMAP unit automatically converts GPS coordinates to LORAN TDs for those who have a collection of LORAN fixes for favorite fishing spots and other waypoints recorded as TDs.
Page 133
TD coordinate anywhere in the world. You must know your GRI chain number and secondary stations to create a LORAN TD position. For more information, read our LORAN TD Position Format Handbook, available at the Garmin Web site, at www.garmin.com/support/userManual.html. PPENDIX ETUP...
Every chart has a map datum reference, and you can set the GPSMAP 376C to match most of those commonly used. If you are navigating and comparing the GPS coordinates to a map, chart, or other reference, set the map datum in the GPS unit to the same datum as the map to ensure the most accurate navigation.
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 navcen.uscg.gov/marcomms/gmdss/mmsi.htm.
DSC support. Any DSC- equipped mariner (on sea or land) within range can receive the call. When the GPSMAP 376C 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.
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 138
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 Thunderstorm Warning—a severe thunderstorm warning was issued for the...
GPSMAP 376C Owner’s Manual 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 140
Weather–Temperature—the temperature at the nearest weather reporting station. Weather–Wind—the wind speed and direction at the nearest weather reporting station. XM Audio—the artist and song title of the XM audio channel currently playing. XM Signal—the strength of the XM signal. GPSMAP 376C Owner’s Manual...
Registration link on our Home page. Use this area to record the serial number (8-digit number located on the back of the box) in case your GPSMAP 376C is lost, stolen, or needs service. Keep your original sales receipt in a safe place or attach a photocopy inside the manual.
Garmin dealer for repairs. The GPSMAP 376C is fastened shut with screws. Any attempt to open the case to change or modify the unit in any way will void your warranty and may result in permanent damage to the equipment.
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.
Reception of the XM signal may vary depending on location. Subscriptions subject to Customer Agreement included with the XM Welcome Kit and available at xmradio.com. Available only in the 48 contiguous United States. XM WX is a trademark of XM Satellite Radio Inc. GPSMAP 376C Owner’s Manual...
FCC Compliance The GPSMAP 376C 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.
Need help?
Do you have a question about the GPSMAP 376C and is the answer not in the manual?
Questions and answers