Garmin 376C manual

GPSMAP ® 376C chartplotting receiver owner’ s manual GPSMAP 376C 190-00508-00_0C.indd 1 11/6/2006 9:47:21 AM[...]

© 2006 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151 st Street, Olathe, Kansas 66062, USA T el. 913/397.8200 or 800/800.1020 Fax 913/397.8282 Garmin (Europe) Ltd. Unit 5, The Quadrangle, Abbey Park I ndustr ial E state, Rom sey , SO51 9DL, U K T el . +44 (0) 870.8501241 (outside t he UK) 0808 2380000 (UK only) Fax 44/087[...]

I NTRODUCTION Thank you for choosing the Garmin ® GPSMAP ® 376C, which uses the proven performance of Garmin GPS and full-featured mapping to create an unsurpassed portable marine navigation chartplotter and automobile navigation device. T ake a moment to compare the contents of this package with the packing list on the outside of the box; if any[...]

T able of Contents Introduction ...........................................................................i About This Manual ................................................................... i Caring for the GPSMAP 376C ................................................ iv W arnings ................................................................[...]

Points T ab .............................................................................. 70 T rack T ab ................................................................................ 71 DSC T ab .................................................................................. 71 Sonar T ab ......................................................[...]

Caring for the GPSMAP 376C The GPSMAP 376C case is constructed of high quality materials and does not require user maintenance except cleaning. Cleaning the Case Clean the unit’ s outer casing (except for the screen) using a cloth dampened with a mild detergent solution and then wipe dry . A void chemical cleaners and solvents that might damage p[...]

Failure to avoid the following potentially hazardous situations could result in an accident or collision resulting in death or serious injury . • When installing the unit in a vehicle, place the unit securely so that it does not obstruct the driver ’ s view of the road or interfere with vehicle operating controls, such as the steering wheel, fo[...]

Important Information MAP DA T A INFORMA TION: 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. W e use a combination of governmental and private data sources, which we identify in product literature and copyright messages displayed to the consumer . V i[...]

G ETTING S T ARTED Unit Overview The GPSMAP 376C 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, a built-in basemap, and auto routing to provide you with automatically generated turn-by-turn directio[...]

Charging the GPSMAP 376C Before using the GPSMAP 376C, you might need to charge the battery . Plug the power cable into an external power source to charge. Y ou can use the unit while it is charging. T o charge the unit’s battery: 1. Lift the rubber weather cap to expose the power connector on the back of the unit. See the image on page 1 for con[...]

T urning Y our GPSMAP 376C On or Off Before you turn on the GPSMAP 376C, be sure the antenna is up as shown on page 1, and it has a clear and unobstructed view of the sky to receive satellite signals. The first time you turn on your GPSMAP 376C, the GPS receiver must collect satellite data and establish its current location. T o ensure proper init[...]

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 Satellit[...]

The progress of satellite acquisition is shown in three stages: • No signal strength bars —the receiver is looking for the satellites indicated. • White signal strength bars —the receiver has found the satellite and is collecting data. • Green signal str ength bars —the receiver has collected the necessary data from this satellite. When[...]

GPS Options Press MENU twice to open the Main Menu. Use the ROCKER to highlight the GPS tab. Press MENU to open the options menu. Start/Stop Simulator —starts and stops Simulator Mode, which is helpful when learning how to use your unit. Enable/Disable W AAS —enables or disables W AAS capability . See page 123 of the “Appendix” for more inf[...]

Using the GPSMAP 376C Keypad . IN Key / OUT Key • Press to adjust map scale to show a larger area with less detail (zoom out) or a smaller area with more detail (zoom in). P AGE/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 t[...]

Using the GPSMAP 376C The advanced keypad system on the GPSMAP 376C is designed to allow you to select options and enter data quickly and conveniently . As you progress through this owner ’ s manual, you are directed to press a specific key or highlight a field on the screen. When you are directed to press a key , you should press and quickly r[...]

Selecting Options and Entering Data T o enter data and select options use the ROCKER to highlight, select, or choose an item in a list or a field on the screen. Use the ENTER key and the ROCKER to select options, enter names and numbers in data fields, and activate your selections. T o select an optional feature: 1. From any page, press MENU . An[...]

Entering data TIP: T o 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. Restoring Default Settings Y ou can restore factory defaults for the followin[...]

Using the Main Menu Use the Main Menu on your GPSMAP 376C to access various waypoint, system, navigation and interface management, and setup menus. Press the MENU key twice from any page to open the Main Menu. For more information, see the “Main Menu” section on page 67 . Main Menu T o select a tab from the Main Menu: 1. From any page, press ME[...]

Using Simulator Mode Simulator Mode is great for practicing with the unit if you are indoors or when satellite signals are not available. All waypoints and routes created in Simulator Mode are retained in memory for future use. By unplugging the GXM 30 antenna and placing the unit in Simulator Mode, you can view simulated weather information. NOTE:[...]

M ARINE M ODE This section explains some of the more common operations you will perform with your GPSMAP 376C. T o switch usage modes: 1. Press and hold the P AGE/MODE key . The Usage Mode Menu appears. 2. Select Automotive or Marine , and press ENTER . Marine Mode Pages Marine Mode has five main pages: Map, Compass, Highway , Active Route, and Po[...]

Navigating to a Destination Y ou can navigate to your destination using the Map Page. As you travel, you see a magenta line that always runs from your current location to the destination or to the next turn on the Map Page. Y ou can use the Map Page, Compass Page, Highway Page, and Position Data Page to help navigate. Y ou can navigate to a destina[...]

T o navigate (Go T o) a point on the map: 1. On the Map Page, highlight a point to navigate to, and press NA V . 2. Highlight Go T o <point name> , and press ENTER . Navigate Menu 3. Follow the magenta route created on the Map Page. T o stop navigation: 1. While navigating to a point, press NA V . 2. Highlight Stop Navigation , and press ENTE[...]

T o search for an item and route to it: 1. Press FIND to open the Find Menu. 2. Highlight a category , and press ENTER . 3. Press ENTER , and then press the ROCKER up or down to enter letters contained in the item name. Press ENTER when finished. Finding an item using the Containing field: The unit searches for items containing the letter combina[...]

Finding an Item Use the Find Menu to search for addresses, food & drink, fuel services, lodging, banks/A TMs, cities, shopping, stored waypoints and points of interest (POIs). T o open the Find Menu, press the FIND key . The Find Menu is comprised of several default categories: W aypoints, Cities, Exits, T ransportation, T ide Stations, and W e[...]

T o find an item from another location: 1. From any page, press FIND . 2. Highlight a category from the list, and press ENTER . 3. Press MENU to open the options menu. Find From Options Menu 4. Highlight Near Other , and press ENTER . If you are actively following a route, you can also choose one of the other options listed in the Find From list. [...]

V iewing the Information Page Each item on the map and each item listed in the results list has an Information Page. T o view details about an item: 1. Highlight a point on the map or in the search results list, and press ENTER . An Information Page appears with details about the item, in a tabbed format. Depending on the item selected, and if you [...]

Creating and Using Routes The GPSMAP 376C allows you to create and store up to 50 reversible routes, with up to 300 points each. Creating a New Route Use the Route tab to create a route by selecting waypoints from the Find Menu, or by selecting waypoints or map items from the Map Page. T o create a route using the Find Menu: 1. Highlight the Route [...]

Navigating a Saved Route Use the Navigate Route option to select and navigate a saved route. T o navigate a saved route: 1. Press the NA V key . 2. Highlight Navigate Route , and press ENTER . 3. Highlight a route, and press ENTER . Select a route from the list Editing a Route After you create a route, use the Route Review Page to edit, change the [...]

T o review individual route points: 1. Highlight the Route tab on the Main Menu. 2. From the Route List Page, highlight the name of the route, and press ENTER . 3. From the Route Review Page, highlight a point, and press ENTER . 4. On the Point Review Page, choose Next (highlight the next point on the route list), Show Map (show the point on a map [...]

T o edit the route on the map: 1. Highlight the Route tab on the Main Menu. 2. Select a route, and press ENTER . Press MENU to open the Route Review Page options menu. 3. Highlight Edit on Map , and press ENTER . 4. Select a location on the route (the route turns red when the arrow is over the route), and press ENTER . 5. Use the ROCKER to drag the[...]

Manually Transitioning to the Next W aypoint From the Route tab option menu, highlight Set Up Routes, and press ENTER to set the route leg transition (or waypoint transition). Select Distance to enter a radius so that when you are within the entered distance, the GPSMAP 376C leads you to the next point on your route. When you select Manual , you ca[...]

Marking Y our Present Location Use the ENTER/MARK key to capture your present location to create a new waypoint. Y ou must have a valid position (2D or 3D) fix to mark your present location. T o mark your present location: 1. Press and hold the ENTER/MARK key until the New W aypoint Page opens, then release it. A default four-digit name and symbol[...]

Creating a Waypoint by Entering Coordinates Y ou can manually enter location coordinates to create a waypoint. This method is useful for creating a waypoint at a specific latitude/ longitude position from a chart. T o create a new waypoint by entering location coordinates: 1. Press ENTER/MARK to create a waypoint. The new waypoint is created with [...]

T o access the Waypoint Edit Page: 1. Highlight the Points tab on the Main Menu, and then select a waypoint from the list. Points T ab 2. Press ENTER to open the W aypoint Edit Page. NOTE: If the waypoint is located on a map feature or MapSource or BlueChart feature, the W aypoint Edit Page does not show the details of the other map features. Addin[...]

Averaging the Waypoint’ s Location A verage Location makes the unit take several sample location measurements for the waypoint and recalculates for a more accurate location reading. NOTE: Y ou must have a GPS satellite fix before you can average a waypoint’ s location. T o calculate the average location: 1. Open the W aypoint Page, and press M[...]

6. Select the point from which you will project your new waypoint. For more information see the “Finding an Item” section on page 17 . 7. T o adjust the distance that the new waypoint will be projected beyond the original waypoint, highlight the Distance field, and press ENTER . Enter the projection distance, and press ENTER . T o adjust the b[...]

W aypoint Page Name field Symbol field T o edit the next waypoint in the list: 1. Highlight Next and press ENTER . The W aypoint list appears with the next waypoint highlighted. 2. Press ENTER to edit that waypoint. Organizing Waypoints into Categories Y ou can organize your waypoints into categories, to help manage your waypoints. For example, y[...]

W aypoint Page Select the category to which you want to assign this waypoint. T o delete a category: 1. With the W aypoint Categories window open, highlight the category you want to delete, and press MENU . W aypoint Categories Options Menu 2. Select Delete Category , and press ENTER . 3. Press ENTER again to finish deleting the category . Deletin[...]

T o delete waypoints by symbol or category: 1. On the User sub tab, highlight a waypoint to delete, and press MENU . 2. Highlight Delete by Symbol or Delete by Category , and press ENTER . 3. When deleting by symbol, highlight the symbol of the waypoint you want to delete, and press ENTER . When deleting by category , select the category you want t[...]

2. Highlight the field below Proximity Alarm , and press ENTER . 3. Select the On or Off setting, and press ENTER . T o add a proximity waypoint: 1. From the Proximity Points tab, use the ROCKER to highlight an empty line on the Proximity List, and press ENTER . The Find Menu opens. 2. Select a waypoint or point of interest from the Find Menu. 3. [...]

Managing Y our T racks The GPSMAP 376C draws an electronic breadcrumb trail or track log on the 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 [...]

T o clear the track log: 1. Highlight the T rack tab on the Main Menu, and then highlight the Active sub tab. 2. Highlight the Clear button, and press ENTER . A confirmation message appears. Clearing the track log 3. Highlight OK , and press ENTER . T o save the entire track log: 1. Highlight the T rack tab on the Main Menu, and then highlight the[...]

Saved Tracks The Saved sub tab lists all of the saved tracks in your unit. Press MENU to open the Saved tab options menu. Saved T ab Review on Map —shows the highlighted track on the Map Page. T racBack —navigates the track. Y ou can either navigate the track as it is saved, or you can navigate the track in reverse. Delete T rack —erases the [...]

Navigating a Saved Track Y ou can save your track log to use later as a T racBack, which reduces your track log into a route with up to 300 turns. When initiated, a T racBack route leads you back to the oldest stored track log point. It is a good idea to clear the existing track log before you start your current trip. Also, you must save an active [...]

M ARINE M ODE P AGES Five pages are available in Marine Mode—Map, Compass, Highway , Active Route, and Position Data. An optional XM Audio Page can be enabled. And a Sonar Page is available when a GSD 20 or GSD 21 Sounder Module is connected. Map Page When you turn on the GPSMAP 376C, the Map Page appears after the unit acquires a satellite signa[...]

Changing the Page Layout and Data Fields Y ou can adjust how the following pages appear: Map, Compass, Highway , Position Data, T rip Computer , and optional Sonar Pages. Y ou can also adjust the data fields on each page. T o change the map page layout: 1. Press MENU to open the options menu. 2. Highlight Set Up Page Layout , and press ENTER . 3. [...]

Setting Up the Map Page Use the Set Up Map option to adjust how items appear on the Map Page. T o 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 . Setting up the Map Page 3. Press left or right on the ROCKER to highlight a tab; press up or down on the ROCKER to highlight[...]

5. When using a map loaded to a data card, you can view detailed information about an individual map, highlight the Map Name, and press ENTER . Highlight OK , and press ENTER to exit the Map Information Page. 6. T o select/deselect individual maps (data card maps only) to show on the Map Page, highlight the box next to the map you want, and press E[...]

Map coverage conforms to the following conditions: • Cartography is shown when the selected map zoom range is covered by either the internal basemap or other MapSource data loaded onto a data card. • When the selected map zoom range is covered by both the internal database and data card map information, the cartography with the best resolution [...]

T o re-center your position on the screen: Press QUIT . The map automatically moves to show your present location, and the unit returns to position mode. Y ou can also use the arrow to select on-screen map items, which allows you to review a selected item directly from the map. T o view details about an on-screen point: 1. Use the ROCKER to move th[...]

Measuring Distance Y ou can measure the distance and bearing between two map items. T o measure the bearing/distance between two points: 1. On the Map Page, press MENU to open the options menu. 2. Highlight Measure Distance , and press ENTER . An on- screen arrow appears on the map at your present location with ENT REF below it. 3. Move the arrow t[...]

Compass Page During active navigation, the Compass Page guides you to your destination with a graphic compass and a bearing pointer . When the pointer is pointing straight up, you are heading directly to your destination. Compass Page in Marine Mode Rotating compass ring Course to steer indicator Compass arrow Data fields The middle of the page fe[...]

Compass Page Options Use the options menu on the Compass Page to customize the Compass Page. For definitions of data field options, see to page 131 . Press MENU to open the Compass Page options menu. Set Up Page Layout —select the page layout. Show Course Pointer/Show Compass —toggles between showing the Course Pointer , which shows how far o[...]

T o use the Marine Timer: 1. Press the ROCKER up or down to select the time you want to count. Five (5) minutes is the default. 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. Marine Timer on the Compass Page As discussed previously , the timer is set [...]

Highway Page The Highway Page is available in both Marine Mode and Automotive Mode. Highway Page When you are navigating, the Highway Page provides digital and graphic steering guidance to the destination. The right side of the Highway Page features user-selectable data fields showing useful navigation information. A compass ribbon appears at the [...]

Highway Page Options Use the Highway Page options menu to define the data fields and select which waypoints and tracks appear on the screen. The data fields, located along the right side of the page, provide various types of useful data. T o show and select the Highway Page Options: 1. Press P AGE repeatedly until the Highway Page appears. 2. Pr[...]

Active Route Page When you are navigating a route using your 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 (to show the other fields use the ROCKER to scroll right or left using the arrows shown on the screen). The curre[...]

Position Data Page The Position Data Page shows important navigation data while navigating a route in Marine Mode. By default, the Position Data Page shows a compass ribbon, your current latitude and longitude, date and time, your location in relation to a prominent nearby landmark such as a waypoint or city , and eight user -selectable data field[...]

XM Audio Page Use the XM Audio Page to view and select XM Radio channels. Add or remove channels within the Favorites category , and turn audio on or off. NOTE: Y ou 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 a 12/24-[...]

Turning on the XM Audio Page The XM Audio Page is of f by default. T o show the XM Audio Page: 1. Highlight the Display tab from the Main Menu. 2. Highlight the XM Audio Page field, and press ENTER . 3. Select On , and press ENTER . XM Audio Page field on the Display tab T o select an XM Radio channel: 1. Press up or down on the ROCKER to scroll [...]

Using Favorites Y ou can create a customized list of up to 30 of your favorite XM Radio channels. T o add a channel to Favorites: 1. Highlight the Category list, and press ENTER . 2. Select a category , and press ENTER , or use the IN and OUT keys. 3. Select a channel. 4. Press MENU . 5. Highlight Add T o Favorites , and press ENTER . Repeat steps [...]

Scanning XM Radio Channels From the XM Audio Page, you can scan all channels, scan channels in a specific category , or scan channels in your Favorites. T o scan XM Radio channels: 1. On the XM Audio Page, press MENU . 2. Select Scan on the options menu, and press ENTER . 3. Select All Channels to scan all channels. OR Select Category to scan only[...]

A UTOMOTIVE M ODE This section discusses some of the more common Automotive operations you can 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. See the Marine Mode sections for operations and information not found[...]

Navigating to a Destination Y ou can navigate to your destination in Automotive Mode using the Map Page. As you travel, your GPSMAP 376C guides you to your destination with voice prompts, arrows, and directions along the top of the screen. When you are actively navigating, you see a magenta line that always runs from your current location to the de[...]

T o navigate (Go T o) a point on the map: 1. Highlight a point to navigate to, and press NA V . 2. Highlight Go T o <point name> , and press ENTER . 3. Follow the magenta line created on the Map Page. Stopping and Resuming Navigation When navigating to a point, you can stop navigation. For example, if you are on a long car trip, but you want [...]

T o create a new route: 1. Press NA V to open the Navigate Menu. 2. Highlight New Route , and press ENTER . 3. From the Find Menu, highlight W aypoints , and press ENTER . (Y ou can also choose to go to other points, such as Cities or Exits from this list. The steps vary only slightly from those listed for waypoints.) 4. Select a waypoint from the [...]

Following a Saved Route Use the Navigate Menu to follow a saved track or route. If you want to follow roads on your route, press MENU and select Follow Roads on the Active Route Page. T o follow a saved route: 1. Press NA V to open the Navigate Menu. 2. Highlight Navigate Route , and press ENTER . 3. Highlight the route you want to navigate, and pr[...]

Entering Custom Avoids The Custom A voids feature allows you to enter specific areas and roads to avoid when navigating. Custom A voids apply to all routes, but detours apply to only the active route. Y ou can add Custom A voids while you are navigating a route or before you navigate. T o enter a custom avoid: 1. Press NA V while navigating to a d[...]

Adding and Editing Stops (V ia Points) Y ou can add V ia Points—points through which you would like to travel—to your route using the Edit V ias option. T o add Via Points to your route: 1. While navigating your route, press NA V to open the Navigate Menu. 2. Select Edit Vias , and press ENTER . The Add/Edit Vias window opens. 3. Highlight Add [...]

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 Y our Progress with the Map Page Y ou can track the progress of your route on the Map Page. Y our route is shown with a magenta line. The next turn is shown in the top bar on the Map Page. Map Page Displa[...]

A UTOMOTIVE M ODE P AGES Automotive Mode has two main pages (Map and T rip Computer), that are always available. The Optional Highway Page, Compass Page, and XM Page can be turned on in Automotive Mode. When you are actively navigating, the Current Route Page is available if you are navigating a turn-by-turn route. The Active Route Page is availabl[...]

Current Route Page When navigating a route using your 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. As you navigate a route, the turn list automatically updates to indicate the next turn at the top of the l[...]

T rip Computer Page The T rip Computer Page shows important data while navigating a route in Automotive Mode. It indicates your current speed and other data about your trip, such as average speed and moving time. T rip Computer Page Reset the T rip Computer before beginning a trip. If you make frequent stops, leave the GPSMAP 376C turned on in orde[...]

M AIN M ENU The Main Menu provides access to various waypoint, system, navigation and interface management, and setup menus. Main Menu T o select a tab from the Main Menu: 1. From any page, press MENU twice to open the Main Menu. 2. Highlight the tab you want. The information for the highlighted tab automatically appears on the right. T o highlight[...]

GPS T ab The GPS tab provides a visual reference of satellite acquisition, receiver status, and accuracy . The sky view and signal strength bars give an indication of what satellites are visible to the receiver and whether they are being tracked. For more information about GPS, see pages 4-6 . Main Menu—GPS T ab W eather T ab Use the W eather tab[...]

XM T ab The XM tab is where you can view and select XM Radio channels, add or delete favorites, and obtain radio ID and XM WX W eather service level information. The XM tab is divided into two sub tabs: Audio and Information . NOTE: The XM tab always appears on the Main Menu, regardless of whether the XM Audio Page is turned on or off. For more inf[...]

Route T ab The Route tab shows all the routes currently stored in memory , along with a descriptive name for each route. Use the Route tab to create and store up to 50 reversible routes, with up to 300 points each. See the “Creating and Using Routes” section beginning on page 20 for more information about routes. Main Menu—Route T ab Points T[...]

T rack T ab Use the T rack 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. The T rack tab is divided into two sub tabs: Active and Saved. For more information about tracks, see the “Managing Y our T racks” section beginning on page 34 . Main Menu—T rack T ab Active Su[...]

Understanding Distress Calls W ith 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. The alarm only sounds on a distress call; position reports do not sound the alarm. Distress calls are broadcast to all[...]

DSC Call List The Call Lis t sub tab shows the 50 m ost r ecent cal ls, e ven i f the uni t is left unat tende d. The C all Lis t onl y sh ows the mo st r ece nt ca ll f rom a v essel . If a se cond call is r eceiv ed, i t rep lace s the first call in the C all Lis t. Pr ess MENU to so rt th e li st an d del ete e ntri es. DSC Call List DSC Log Wh[...]

DSC Directory list DSC Directory entries. Press ENTER to open the entry review page. Blank entry . Press ENTER to add a Directory entry . T o add a new directory entry: 1. Open the DSC Directory on the Main Menu. 2. Highlight the first blank space in the directory list, and press ENTER . OR Press MENU , highlight New Item , and press ENTER . 3. En[...]

Setting Up DSC Use the Setup sub tab to turn DSC on and off. If you have more than one chartplotter and only want DSC to show on another chartplotter , turn DSC off on this unit. This Setup sub tab also allows you to simulate Distress Calls and Position Reports while the unit is in Simulator Mode, see page 12 . Simulating calls is helpful for pract[...]

Alarms T ab Use the Alarms tab to define alarm settings. When an alarm goes off, the alarm message appears on the GPS 376C and the unit emits five (5) beeps. Main Menu—Alarms tab T o set an alarm: 1. Highlight the Alarms tab on the Main Menu. 2. Select an alarm to set, and press ENTER . 3. Change the setting to On, and press ENTER . If necessar[...]

System Alarms Clock —sets an alarm based on the unit’ s clock. Select On , and then enter a specific time that you want the alarm to sound. The GPSMAP 376C must be on for the clock alarm to work. Ext. (External) V oltage —sets an alarm to sound when the external voltage drops below a specified amount. Select On , and then enter a specific [...]

Sonar Alarms Shallow W ater/Deep W ater —sets an alarm to sound when you enter an area of water that is too shallow or deep. Select On , and then specify a depth. Y ou must be receiving sonar NMEA data for this function to work. W ater T emp —sets an alarm to indicate if the water temperature has exceeded or dropped below a specific temperatur[...]

T o add a route (or point) to the calendar: 1. Highlight the Calendar tab on the Main Menu. The current day appears on the Day View sub tab. 2. Press MENU to open the options menu. Highlight Add Route (or Add Point) , and press ENTER . 3. From the pop-up route list (or the Find Menu if Add Point was selected), select the route you want to add to th[...]

Tide Sub T ab The T ide sub tab contains a graphical chart that shows tide station information in a 24-hour span starting at midnight station time. Y ou can choose from different dates and more than 3,000 tide stations. Height of tide Smallest and largest tides for the AM hours Select the tide station for which you want to view the information. Ent[...]

T o view a chart’s details for another time during the day (other than current time): 1. From the Tide sub tab with the chart you want to view , press MENU , and then select Move Cursor . 2. Press the ROCKER right or left to view the chart at another time. 3. T o return to the current time, press MENU , and select Stop Moving Cursor . T o automat[...]

T o view sun and moon information for a different location: 1. Highlight the From field, and press ENTER . 2. Highlight Use Find Menu , and press ENTER . The Find Menu automatically opens. 3. Select a waypoint or point of interest, and press ENTER . 4. On the waypoint information page, press ENTER . The unit shows the sun and moon information for [...]

T o use the current date again, highlight the Date field. Press MENU , highlight Use Current Date , and press ENTER . T o view hunt and fish information for a different location: 1. Highlight the From field, and press ENTER . 2. Highlight Use Find Menu , and press ENTER . The Find Menu opens. 3. Select a point, and press ENTER . 4. On the inform[...]

T o show or hide messages using the log filter: 1. Highlight the Message tab on the Main Menu. 2. Highlight the Log Filter sub tab. All messages appear by default. Message Log Filter T ab 3. Highlight the message type you want to hide, and press ENTER . The message name appears in the Hide window . 4. Highlight the message, and press ENTER to show[...]

T wilight Adjustment —allows the unit to adjust the backlight for optimum viewing during twilight times. Highway Page —indicates whether the Highway Page appears in the main page sequence. XM Audio Page —indicates whether the XM Audio Page appears in the main page sequence. Compass Page —indicates whether the Compass Page appears in the mai[...]

Setup T ab T o customize how your GPSMAP 376C looks, use the System tab to adjust certain system settings. System Sub T ab Use the System sub tab to control settings for system mode, speed filter , language, and external power . T o access the System sub tab: 1. Highlight the Setup tab on the Main Menu. 2. Select the System sub tab. Main Menu—Sy[...]

Road Routing Sub T ab Use the Road Routing sub tab to select road routing settings. T o access the Road Routing sub tab 1. Highlight the Setup tab from the Main Menu. 2. Select the Road Routing sub tab. Road Routing Sub T ab Route Prefer ence —allows the unit to calculate routes based on: • Faster Time —routes calculated are faster to drive b[...]

Guidance Sub T ab Use the Guidance sub tab to set guidance information. T o access the Guidance sub tab 1. Highlight the Setup tab from the Main Menu. 2. Select the Guidance sub tab. Guidance Sub T ab Off-Route Recalculation —allows you to set whether the unit prompts you when it is recalculating your route ( Prompted ), or recalculates automatic[...]

Time Sub T ab Use the T ime sub tab to set the time format and zone, and set the unit to conform to Daylight Saving T ime. The current time and date appear in the Current T ime and Date field. T o access the Time sub tab 1. Highlight the Setup tab on the Main Menu. 2. Select the Time sub tab. Time Sub T ab Time Zone —choose the time zone for you[...]

Location Sub T ab Use the Location sub tab to change location setting information. T o access the Location sub tab 1. Highlight the Setup tab on the Main Menu. 2. Select the Location sub tab. See the “Appendix” for more information about location formats and map datums. Also visit the National Imagery and Mapping Agency at www .nima.mil for mor[...]

Welcome Sub T ab Use the W elcome sub tab to enter information, such as your name and address, or a welcome message that appears when you turn on your GPSMAP 376C. T o access the Welcome sub tab: 1. Highlight the Setup tab on the Main Menu. 2. Select the Welcome sub tab. Welcome Sub T ab T o add a welcome message: 1. Highlight one of the Welcome Me[...]

Serial Data Format —sets the data format to one of the following: • Garmin Data T ransfer —provides the proprietary format used to exchange data with a computer or another Garmin unit. Garmin Data T ransfer is disabled when the USB is connected, and the unit automatically switches to USB format. When the USB is disconnected, the USB field ch[...]

Interface sub tab with GARMIN DGPS selected Highlight Scan and press ENTER . Shows the status of the scan The Status field shows one of the following: • T uning —the unit is attempting to tune to the specified frequency and bit rate. • Scanning —the unit is automatically scanning through the frequencies and bit rates. • Receiving —the[...]

Advanced NMEA Output Setup If you are going to interface the GPSMAP 376C with another piece of equipment (such as a radar or autopilot), the unit needs to be set to output NMEA data. The NMEA data transmission can be customized to keep the output rate at two seconds. If too many NMEA sentences are activated, the unit might take longer than two seco[...]

U SING XM WX W EA THER This section describes how to use XM WX Satellite W eather with your GPSMAP 376C. Y ou must have a subscription to XM WX W eather , and you must plug your GXM 30 antenna into the USB port on the back of the unit to receive the XM signal. If you do not have a subscription to XM WX W eather, the features described in this secti[...]

T o set up weather options on the Map Page: 1. From the Map Page, press MENU to open the options menu. 2. Highlight Set Up Map , and press ENTER . Map Page Options Menu 3. Highlight the Weather , Srfc Wx , or Mrn Wx tab. 4. Highlight the field you want to change, and press ENTER . 5. Press P AGE or QUIT to exit. Weather T ab Use the W eather tab t[...]

Srfc Wx T ab Use the Srfc Wx tab to set the map scale at which surface weather information first appears on the Map Page. Srfc Wx T ab Surface W inds , Surface Pressur e , Fronts , V isibility , County W arnings —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 T ab Use[...]

Using the W eather T ab Use the W eather tab on the Main Menu to quickly view individual weather settings without turning all other weather features on or off. For example, you can select Storm Cells to view only storm cells on the Map window that appears on the W eather tab. When you close the Main Menu and return to the Map Page, all of your prev[...]

3. Highlight the forecast you want to view— Current , 12 Hour , 24 Hour , 36 Hour , or 48 Hour , and press ENTER . The Map window on the Weather tab is updated with forecast information for the time you selected. The age of the weather report appears in the bottom-left corner of the Map window on the W eather tab. T o pan the map: Press and hold [...]

V iewing Additional XM Weather Information Use the Information sub tab to view the radio identification number , service level information, and list of weather products. Information Sub T ab Radio ID Subscription package List of available weather features Age (in minutes) of weather data The Information sub tab contains the following information: [...]

Finding W eather Information Y ou can use the Find Menu to access weather information for your current location or from another location on the map. By selecting the W eather Data option on the Find Menu, you can view the current conditions, forecast information, sea surface conditions, and weather bulletins. For more information about the Find Men[...]

5. Highlight the Bulletin tab to view marine weather bulletins. Marine Weather Bulletins Y ou can highlight a weather bulletin, and press ENTER to view the full text of the marine weather bulletin. Marine Weather Bulletin T o find weather data for a different location: 1. Press MENU on the Weather From Current Location Page. 2. With Near Other hig[...]

S ETTING U P AND U SING S ONAR This section covers the additional sonar options for the GPSMAP 376C when used in conjunction with a GSD 20 or GSD 21 Sounder Module. Read the GSD 21 or 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. [...]

Using the Sonar Page When combined with a GSD 21 or GSD 20 Sounder Module, your GPSMAP 376C 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 T urned Off” message appears across the Sonar Page. The Sonar Page appears only if a GSD 21 or GSD 20 ha[...]

Adjusting the Sonar Page Use the Adjustment Menu to access the settings and features most commonly used on the Sonar Page. T en main adjustment options are available: Range, Zoom, V iew , Gain, T arget Level, Whiteline, Frequency , Depth Line, Noise Reject, and Scroll. The currently selected option appears in the upper-left corner . T o select an a[...]

• 2X Zoom —shows the 2X zoomed picture on the full screen. • 4X Split —shows two reduced pictures, the right at the original depth scale and the left at 1/4 the original depth scale. • 4X Zoom —shows the 4X zoomed picture on the full screen. • Btm (Bottom) Split —shows two reduced pictures, the right at the original depth scale and [...]

Resizing the Split Screen Y ou can adjust the way the split screen appears. This option is only available when a zoom scale other than No Zoom is selected. T o resize the Sonar Page split screen: 1. From the Sonar Page split screen, press MENU . 2. Highlight Size Split , and press ENTER . 3. Move the horizontal double-arrow left or right using the [...]

Setting Up Sonar Use the Sonar tab on the Main Menu to set up the Sonar Page. T o access the Sonar T ab: Highlight the Sonar tab on the Main Menu. Main Menu—Sonar T ab Fish Symbols —select how the Sonar Page shows underwater targets and background information. Select Off to show all of the available information about the underwater environment.[...]

Calibrating the Water Speed If you select T emp, Spd for the T ransducer option on the Setup sub tab, you must calibrate the water speed to ensure the W ater 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 comparis[...]

Setting Up the Sonar Display Y ou can set up how the sonar information appears on-screen using the Display sub tab. T o access the Display sub tab: 1. Highlight the Sonar tab on the Main Menu. 2. Highlight the Display sub tab. Display Sub T ab Scale —select how and where you want the depth scale to appear . Color Bar —select On to show a gradie[...]

V iewing the T emperature Use the T emperature sub tab to view a graph of water temperature changes over a period of time. The graph reads from right to left so that the most recent temperature measured appears on the far right side of the graph. The dotted lines within the graph indicate intervals in the temperature scale and the duration of time.[...]

Understanding Sonar The transducer mounted on your vessel transmits sound waves toward the bottom of the water in a cone-shaped pattern. When a transmitted sound wave strikes an underwater object—such as the bottom, a structure, or a fish—sound is reflected back to the transducer . The transducer collects the reflected sound waves and sends [...]

Transducer Coverage The area covered by the transmitted sound waves is determined by the cone angle of the transducer and the water depth. The wide cone angles (40°) associated with low frequencies (50 kHz) provide a large coverage area for finding fish within a coverage width that is approximately 2/3 of the water depth. However , this also mea[...]

Whiteline The GSD 20 or GSD 21 can help you determine whether the bottom is hard or soft. When the sonar sound waves are reflected back by the bottom, a hard bottom returns a stronger signal than a soft bottom. A thin whiteline indicates a softer bottom, while a thick whiteline indicates a harder bottom. Normally , a red line is used to show the p[...]

A PPENDIX Specifications Physical Specifications Size: 5.7" W x 3.2" H x 1.9" D (14.5 x 8.1 x 4.8 cm) W eight: 14.0 oz (0.40 kg) Display: 3.75" diagonal (9.5 cm) T ransflective, 256-color display with backlighting (480 x 320 pixels) Case: Fully gasketed, high-impact plastic alloy , waterproof to IEC 60529 IPX7 T emp. Range: 5[...]

Optional Accessories In addition to the standard accessories included with your GPSMAP 376C, several optional accessories are available to enhance the operation of the GPSMAP 376C. T o obtain replacement parts and optional accessories, contact your Garmin dealer , Garmin Product Support in the USA at 800/800.1020, or Garmin Europe at 44/0870.850124[...]

Installation Information This section of the Appendix provides information on connecting the GPSMAP 376C to auxiliary devices and removing the antenna. Connecting the Power/Data Cable The power/data cable connects the GPSMAP 376C to an 1 1–35 VDC system and provides interface capabilities for connecting external devices. The color code in the dia[...]

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: Y ou must subscribe to XM Radio and/or XM WX Satellite W eather to use the XM Radio and/or XM W eather features on your GPSMAP 376C. T o [...]

Connecting Y our GPSMAP 376C to a Computer Y ou 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. NOTE: Fully install the supplied MapSource program, T rip & W aypoint Manager, on your computer before connec[...]

Using xImage for Customized Waypoint Icons Use xImage to exchange images between your computer and your GPSMAP 376C. Y ou can download and save screenshots of any screen shown on your unit. xImage also allows you to download customizable splash screens and waypoint symbols from compatible GPS units, customize them (if you have an image editing prog[...]

Interfacing The following formats are supported for connection of external devices: GARMIN proprietary Differential GPS (DGPS), NMEA 0180, 0182, 0183 (versions 1.5, 2.0, 2.3, 3.01), ASCII T ext Output, and R TCM SC-104 input (version 2.0). The following are the Approved Sentences for NMEA 0183, version 3.01 output: GPRMC, GPGGA, GPGSA, GPGSV , GPGL[...]

Satellite Information Satellite Sky View 45° 90° Outer ring - the horizon Inner ring- 45° above the horizon Center dot - 90° above the horizon Satellite Location The location of each available satellite is shown over two location rings on the Satellite Information Page. The outer ring represents the horizon, the inner ring represents 45° above[...]

• Searching for W AAS —W AAS is enabled and the receiver is searching for W AAS signal. • Using W AAS —W AAS capability is enabled and the unit is receiving W AAS corrections. • Check Beacon W iring —the DGPS setting is enabled in the Interface sub tab on the Main Menu—Setup tab but no DGPS device is detected. • No Beacon Signal —[...]

LORAN TD Setup LORAN C is a radio navigation aid operated and maintained in the United States by the United States Coast Guard. The name LORAN is an acronym for “LOng RAnge Navigation.” The LORAN system covers the entire United States and the United States Coastal Confluence Zone. From the perspective of a mariner , the system is used for ocea[...]

T o set up Loran TD from the Main Menu: 1. Highlight the Setup tab on the Main Menu, and then highlight the Location sub tab. 2. Highlight the Location Format field, and press ENTER . Location Sub T ab 3. Highlight Loran TD , and press ENTER . 4. Highlight the Setup button located on the right side of the Location Format field, and press ENTER . [...]

Map Datums and Location Formats Map Datums are based on a mathematical model of the Earth. What Are a Map Datums? A datum is a mathematical model of the Earth that approximates the shape of the Earth and enables calculations to be carried out in a consistent and accurate manner . The datum is physically represented by a framework of ground monument[...]

Digital Selective Calling (DSC) DSC uses marine VHF radio GPS technologies to transmit and receive location information. DSC is used by mariners to assist them in two major areas: Distress Calls and Position Reporting. A non-emer gency DSC Position Report allows mariners to exchange and show their positions. When you receive a DSC position, you can[...]

Non-Federal Users in the United States Commercial users, or those who travel outside the United States or Canada, must apply for a ship station license or an amendment to a ship station license. T o find out if you require a Ship Station license, contact http://wireless.fcc.gov/marine/fctsht14.html . If your vessel requires licensing by the FCC, y[...]

Messages Accuracy Alarm —the GPS accuracy has fallen outside of user-set value. Alarm Clock —the alarm clock has sounded. Antenna Shorted to Ground —the external GPS antenna has an electrical connection problem. Contact Garmin Product Support. Approaching T urn —you are nearing a turn in a route. Arriving at Destination —you are nearing y[...]

No Diff GPS Location —R TCM is selected but the unit is not receiving DGPS data. No Roads Near Destination —the destination for the road route you tried to calculate is not near any roads. Select a different destination. No Roads Near Starting Point —the start location for the road route you tried to calculate is not near any roads. Select a [...]

User Timer Expir ed —the T imer Alarm value has counted down to zero. W ater Speed Sensor is Not W orking —the speed sensor is not detected. Check the connections. W ater T emperatur e Alarm —sonar has reported a temperature above, below , inside, or outside the specified value(s). W aypoint Already Exists —a waypoint with the same name al[...]

ETE (Next) —Estimated T ime Enroute. The estimated time required to reach the next point on your route. 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 (Select[...]

W ater Speed (Marine Only)—the data acquired from measurement devices interfaced to the unit is used to calculate your current speed over water . W ater T emperatur e (Marine Only)—the temperature of water at a measured depth using measurement devices interfaced to the unit. W aypoint (Destination) —the last point on a route, your destination[...]

Product Registration Help us better support you by completing our online registration today! Connect to our W eb site at www .garmin.com/registration/ . Use this area to record the serial number (8-digit number located on the back of the GPSMAP 376C) in case your GPSMAP 376C needs service. Keep the original sales receipt, or a photocopy , in a safe[...]

Limited W arranty This Garmin product is warranted to be free from defects in materials or workmanship for one year from the date of purchase. W ithin 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 , prov[...]

W eather Data W arranty THE WEA THER DA T A SOFTW ARE PRODUCT IS PROVIDED “AS IS.” ALL OTHER W ARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY W ARRANTY OF MERCHANT ABILITY OR FITNESS FOR A P AR TICULAR PURPOSE OR OF NON-INFRINGEMENT ARE HEREBY EXCLUDED. USER SAFETY If you use XM Serv ices it is your respon sibility to exercise p rudent disc ret[...]

This product was developed using DAFIF™, a product of the National Geospatial-Intelligence Agency . This p roduct has not been en dorsed or o therwise ap proved by t he National Geospa tial-Intell igence Agen cy , or th e United St ates Depart ment of Def ense (10 U.S.C. 425) a. Under 10 U.S.C. 456, no civil action may be brought against the Unit[...]

I NDEX A accessories 1 16 accuracy alarm 77 acquiring satellites 5 Active Route Page 50, 56 options menu 50 Active T rack T ab 34, 37 AC outlet 2 add to route 22, 24, 27, 62 Advanced NMEA Output Setup 94 alarms 85 anchor drag 76 arrival 76 DSC 72, 75 navigation 76 next turn 76 off course 76 persistent 76 proximity 32 sonar 78 system 77 weather 77 A[...]

depth 89 detailed maps 42 detour 61 DGPS 92, 93, 122 alarm 77 differential 122, 123 Digital Selective Calling. See DSC direction display 89 Display T ab 84 distance and speed 89 distress calls 72, 73, 74, 75, 127, 128 drift 78 DSC 71, 127–128 DSC T ab 71 E edit route 21, 22, 23, 60 waypoints 29 editing a waypoint 29 emergency 127 entering data 9 [...]

M magnetic variation 90 main menu 67–94 Alarms tab 76 Calendar tab 78 Celestial tab 79 Display tab 84 DSC tab 71 GPS tab 67 Message tab 83 Points tab 70 Route tab 70 Sonar tab 75 T rack tab 71 W eather tab 68, 98–100 XM tab 69 man overboard. See MOB map datum 126 map orientation 41 Map Page 38, 64 declutter 43 setup 40 Marine Mode pages 38–42[...]

project waypoint location 28 proximity 32 alarms 32 points tab 32 waypoint 33 R radio ID 100 recalculating 88 receiver not usable 5 receiver status 5 receive satellite signals 3 receiving a DSC call 73 record tracks 34, 37 reference position 18 reset timer 88 reset trip data 51 review route 21 Road Routing T ab 86 route 22, 79 add points 22, 27 cre[...]

tide chart 80 information 80 station 17, 80 sub tab 80 time delay 124 format 89 offsets 126 zone 89 timer 46 toll roads 87 T racBack 14, 37 track legs 37 log 34, 35, 37 tab 34 T racBack 36, 37 T rack T ab 71 track up 6, 41 transducer 108, 1 13 T rip Computer Page 51, 66 options menu 66 page layout 66 trip planning 23, 78 tuning beacon 123 turn-by-t[...]

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For the latest fr ee software updates (excluding map data) throughout the life of your Garmin products , visit the Garmin W eb site at www .garmin.com. © 2006 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151 st Street, Olathe, Kansas 66062, USA Garmin (Europe) Ltd. Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romse[...]