Data Field Sub-Menu

Two Data Fields

Three Data Fields

Four Data Fields
List of Data Field Options
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To display Guidance Text: 1. With Map Page displayed, press the MENU key to display the Map Page Options Menu. 2. Highlight the Guidance Text Option and press ENTER to display the Guidance Text Options Menu. 3. Select the desired option Always Show, Never Show or Show When Navigating and press ENTER to activate. If you select Always Show a guidance message will always be displayed whether or not you are navigating. If you select Show When Navigating a guidance message will be displayed until you select Stop Navigation from the Options Menu. Guidance Text shows you useful information when using one of the navigation methods described on page 5. If you select Always Show and you are not navigating, the message field will display GPS Status information, To Setup the Map: Refer to the Map Setup section of the Setup Options on page 61.
Guidance Text Options Menu
GPS Status Message when not navigating
Guidance Message when navigating
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Measuring Distance
This Map Page option allows you to use the ROCKER key to position the Map Pointer on a map item and then determine the distance to that point from your current location. Access the Map Page Options Menu, select Measure Distance and press ENTER to activate. To measure between two selected points on the Map, move the Map Pointer to the rst map point you want to measure from, press ENTER and then move the Map Pointer to the second map point. Press QUIT to cancel.

Measured Distance

Turning Declutter On/Off
This Map Page option allows you to remove map item titles and icons that clutter the view of roadways especially when the map is zoomed to a scale that is partially obscured by titles and icons which remain the same size no matter what the map scale. Access the Map Page Options Menu, select Turn Declutter On and press ENTER to activate. When you access the menu again the Turn Declutter Off option will display.
The Measure Distance Option Enabled
Restoring Default Settings
This option allows you to return the map settings to factory settings.
Map Declutter Off Map Declutter On

To change data elds:

Data Field Display Options
1. Highlight the Change Data Fields option and press ENTER to determine what data is displayed in the elds displayed on the page. The topic of the rst data eld on the page will be highlighted. 2. Press ENTER to display the list of data options. Refer to page 84 for a description of what each data option represents. 3. Highlight the desired option and press ENTER to place it in the data eld. 4. Use the ROCKER key to move the highlight to the next eld and press ENTER to display the options list again. 5. Repeat Step 3 to change remaining data elds. To restore data elds to default settings: Select Restore Defaults and press ENTER to return the page to factory settings.
Course Pointer Option Data Field Option List

Show 3 Data Fields

Highlighted Data Field

Show 4 Data Fields

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GPSmap 76CS GPS Navigation The Altimeter Page
Selectable Data Fields Range Grid Measurement Scale Elevation Prole Plot over Distance Elevation Status Field Rate of Ascent/Descent Current Elevation

Options Menu

The Altimeter Page provides the user with the current elevation, rate of ascent/descent, a prole of elevation changes over distance or time, or a prole of pressure changes over time. The Altimeter Page Options Menu allows you to select from a variety of display options such as plotting over time, plotting over distance, displaying the zoom ranges of measurement, viewing elevation or pressure points, and resetting data displays. Two user selectable data elds allow you to display a variety of current and recorded pressure and elevation related data. The Altimeter Page provides you with a variety of elevation information: A Status Field that displays current elevation and current rate of ascent/descent, a prole of elevation changes over distance or time, a prole of pressure changes over time, and two user selectable data elds. The Status Field is located at the bottom of the page and displays the current elevation and your current rate of ascent or descent when moving. It can also display the ambient pressure and time of measurement. The Prole Field is located in the center of the page and can be congured to display either elevation or ambient pressure plots as selected from the Altimeter Page Options Menu. Data Fields at the top of the page are user selectable and display a variety of recorded or current data. The Page Options Menu allows you to select the type of information and how it is to be displayed. Page Options include: Plot Over Time, Plot Over Distance, View Elevation Plot, View Pressure Plot, Zoom Ranges, Reset, Calibrate Altimeter and Restore Defaults.

Detailed Information Detailed Information

Wrecks/Obstructions List

Marine Services List
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Searching for an Address The Find Addresses feature allows you to search for an address if you have downloaded detailed mapping data. Enter the street number, street name and city and the Find Feature matches that data with addresses in the map database. To nd an Address: 1. Press and hold the MENU/FIND key to display the Find Menu. 2. Highlight the Addresses icon and press ENTER to display the Find Addresses page. 3. If your unit has a GPS x, the Region eld at the top of the page will be completed with your current region and the <Enter Number> eld is highlighted. Identifying a city is not necessary, as the database has information for the entire region. You can enable the City Filter option is you want to select a city to reduce the possible number of address matches. 4. Enter the Street Number <Enter Number> using the onscreen keypad. Select OK to enter the number. 5. Press ENTER to display the street list. Use the on-screen keypad to enter enough of the street name to display a match on the list below. For name streets, like Main or Elm, enter the core name instead of E, W, etc., to make the search faster. 6. When done, a list of matches appears below. Select one and press ENTER to display the Information Page.
Find Addresses Search Page

Find Address Matches

Address Information Page
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Searching for an Intersection The Find Intersections feature allows you to search for an intersection if you have downloaded detailed mapping data. Enter the two street names and city and the Find Feature matches that data with intersections in the map database. To nd an Intersection: 1. Press and hold the MENU/FIND key to display the Find Menu. 2. Highlight the Intersections icon and press ENTER to display the Find Intersections search page. 3. If your unit has a GPS x, the Region eld at the top of the page will be completed with your current region and the <Enter Street 1> eld is highlighted. Identifying a city is not necessary, as the database has information for the entire region. You can enable the City Filter option is you want to select a city to reduce the possible number of intersection matches. 4. With <Enter Street 1> highlighted, follow instructions in step 6 of the previous page. Repeat for <Enter Street 2>. 5. Press ENTER to display the street list. Use the on-screen keypad to enter enough of the street name to display a match on the list below. For name streets, like Main or Elm, enter the core name instead of E, W, etc., to make the search move faster. 6. When done a list of matches appears below. Select one and press ENTER to display the Information Page.

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GPSmap 76CS GPS Navigation Using Tracks
Using a Track Log The Tracks feature creates an electronic trail on the map page as you travel about and is referred to as a Track Log. A track log contains information about points along its path, including time, position, elevation and depth (requires NMEA input, see page 58). Use a Track Log to: Record your movements for a given time and place and save it. Measure the area of any space you encompass with a track. Retrace your path in either direction.

To create a Track Log:

Tracks Page with Saved Track Log Options Menu
Active Track Color Options Track Log Setup Page
1. Press and Release the PAGE key until the Main Menu displays. Then use the ROCKER key to highlight the Tracks icon. 2. Press ENTER to display the Tracks Page. The page contains On and Off buttons to activate or cancel the Track Log and a Track Log meter which displays the percentage of track log space used. 3. Beneath the Track Log eld are four on-screen buttons to: Setup a track log, Clear the track log, Save a track log, and to activate the TracBack feature for the current log. 4. To setup a track log, highlight the Setup button and press ENTER to display the Setup page. The rst item on the page is Wrap When Full. If you dont check this item, then the track log will stop recording when full instead of overwriting the oldest data with new data. 5. Highlight the Record Method eld and press ENTER to display
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the Distance, Time and Auto options. Because a track is made of a series of points that dene your path of travel, they can be placed a specied Distance apart or placed at a Time interval you specify. The Auto option allows you choose from ve intervals. 6. Next, set the interval for setting track points. You can choose from distance, time or frequency values. 7. The last item is the Active Track Color Options list. 8. When completed, press the QUIT key to return to the Track Log Page.

To Save a Track Log:

Using Tracks
1. With the Tracks Page displayed, highlight the Save button and press ENTER, you will be asked Do You Want To Save the Entire Track?. If you select Yes, a Saving Track message appears followed by the Saved Track Page. The new saved track will be a representation of the entire track log from beginning to end. 2. If you select No a map showing the entire track appears and prompts Select the beginning point for the saved track. Use the ROCKER key to move the Panning Arrow to the point on the track line that you want to become the beginning of the Saved Track and press ENTER. 3. The next prompt asks you, Select the ending point for the saved track. Use the Panning Arrow to identify a point on the track that you want as the End Point and press ENTER. A Saving Track message appears followed by the Saved Track Page.

Zoom Ranges Page

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To Use the TracBack feature:

TracBack Page

1. With the Saved Tracks Page for the track or the Track Log displayed, highlight the TracBack button and press ENTER to display the TracBack Page. 2. A map showing the entire track appears and you are prompted to select the point you want to TracBack to. Use the ROCKER key to move the Panning Arrow to the desired point on the map and press ENTER to start navigating the TracBack. 3. Select either Follow Road to route back to the selected point using available roadways or Follow Track to retrace your original path of travel. Highlight the Dont ask Again option and press ENTER if you want to use the same option the next time you use TracBack. 4. When the TracBack Navigation Page displays, directions to the rst turn on the track display at the top of the page. Move in the direction of the rst turn. When you reach the rst turn the display will provide direction to the next turn, and so on, until you have reached your destination. 5. To exit a TracBack, press the MENU key and select Stop Navigation. To Create a User Waypoint on a Saved Track: 1. With a saved track displayed on the map, use the ROCKER key to move the Panning Arrow to the point on the track that you want to mark as a user waypoint. Press ENTER to display the Mark Waypoint Page. 2. Customize the user waypoint if desired as explained on page 29, then highlight the OK button and press ENTER to save.
Create User Waypoint Prompt
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Creating and Using a Route Route navigation allows you to create a sequence of intermediate waypoints which lead you to your nal destination. The GPSmap 76CS stores 50 routes, with up to 250 waypoints each. A route can be created and modied from the Routes Page, and waypoints can be added to a route from the Find Menu. More complex routes can be created using a PC and MapSource mapping programs and then transferred to the unit memory. Auto-Routes which are generated when you select Go To for a Find item, map item or waypoint cannot be saved. Saved routes with more than 50 waypoints cannot be navigated using the Follow Roads option. To create a route: 1. Access the Routes page from the Main Menu. The page has a New button, an Active button and a list of saved routes. 2. Use the ROCKER key to highlight the New button and press ENTER to display the route Setup Page. 3. With an empty row (dashed) in the route list highlighted, press ENTER to display the Find Menu. 4. Use the Find Menu to select a route waypoint from one of the Find Menu groups and display the Information Page for the selected waypoint, city, exit, point of interest, etc. Highlight the on-screen Use button and press ENTER to place it on the Route Waypoint List. 5. To add more waypoints to the route, repeat the process in Steps 3 and 4. You can rename the route if desired. 6. Press QUIT to save it to the Saved Routes list. Or, highlight the Navigate button and press ENTER to navigate.

This eld changes to red at the second warning beep, when you are about to reach the turning point.
Preview of Turn 4 of 9 Turns on a Route
List of Turns for an Active Route using the Follow Roads option
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Saved Routes Options

Route Options

To delete the route:
1. Access the Saved Routes Page from the Main Menu and press the MENU key to display the Options Menu. 2. To clear the saved routes list, select Delete All Routes and press ENTER. A prompt will display, asking Do you really want to delete all routes? Select Yes and press ENTER.
To select the Off-Road transition for a route:
Route Leg Transition Options Route on the map transitions to the next leg point when you are within a 1 mile radius of that point.
1. Access the Saved Routes Page from the Main Menu and press the MENU key to display the Options Menu. 2. To select a method for advancing the route to the next point on the route, select Off Road Transition and press ENTER to display the Off Route Transition Page. 3. Highlight the Route Leg Transition eld and press ENTER to display the list of options. Select Auto, Manual or Distance.
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Using the Route Detail Page Options: To remove all waypoints:

Route Detail Page

1. Press the MENU key to display the Options Menu. 2. Highlight the Remove All option and press ENTER. At the prompt , select Yes. To reverse the route: With the Options Menu displayed, highlight the Reverse Route option and press ENTER. To create a vertical prole of the route:
(Available only if Garmin MapSource U.S. Topo 24K map data is used. See page 90 for details.)
Route Waypoint Options Menu
Select Prole and press ENTER to display the route prole.

To copy the route:

Highlight the Copy Route option and press ENTER. The copied route displays on the Routes Page and is named the same but followed by a numeral 1. To delete the route: Select Delete and press ENTER. At the prompt, select Yes. To change the route data elds: Select Change Data Fields and press ENTER to display a list of data eld options. (See page 11 for detailed information.) To restore default settings for the route: Select Restore Defaults and press ENTER. To modify a waypoint on a Route Detail Page: Select the waypoint from the list of waypoints and press ENTER to access the Route Waypoint Options Menu.
Route Vertical Prole using U.S. Topo 24K DEM mapping data
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The General Settings Map Setup Page Many of the Setup features use the same type of option lists; Off/On, Most to Least, Small to Large, a scale from 20 feet to 500 miles and a keypad for numerical data entry. The Map Setup Options Menu allows you to quickly restore map settings.

Map Setup

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GPSmap 76CS GPS Navigation Map Setup
Map Setup - General Settings The rst page of the Map Setup feature is the General Settings Page. Use this page: to select the map orientation, North Up (with north at the top of the map) or Track Up (with the map oriented in the direction of travel). Below sets the map scale at which the Track Up feature displays, all scales above that revert to the North Up map orientation. Auto Zoom, zooms the map scale to include the beginning and ending points of a route. Detail selects the degree of map detail displayed. You can lock the Position Arrow to display on the nearest road, compensating for variances in map position accuracy. Map Setup - Tracks Settings The Tracks feature settings, which records a log of your movements for any given period of time, are accessed from the second page of the Map Setup. You have settings for maximum zoom for viewing saved tracks and active track logs. You can set the number of track points for recording a track and select either a bearing or course line for navigating a track. Map Setup - Points Settings The third page of the map setup feature allows you determine the map scale at which various map features display. You turn off the display, set it to Auto or select a value from 20 feet to 500 miles.
The Points Settings Map Setup Page
The General Settings Map Setup Page
The Tracks Settings Map Setup Page
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Map Setup - Text Settings The fourth page of the Map Setup feature is the Text Settings Page. Use this page to select the text size for descriptions of map items on the Map Page. You can select from Small, Medium, or Large. Map Setup - Information Settings This page of the Map Setup feature displays a list of downloaded detailed maps such as topographic, marine charts, and MapSource maps with auto-routing capability. Use the ROCKER key to highlight the desired map and then the ENTER key to show it on the map display or turn it off. Pressing the MENU key displays list of options for displaying maps.

Calendar

New Location Options

Calendar: Week Format

Remove Points Options
Calendar: Month Format Calendar: Day Format Marked waypoints are automatically added to the Calendar.
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GPSmap 76CS GPS Features Alarm Clock
Alarm Clock The Alarm Clock Feature allows you to use your GPSmap 76CS as an alarm clock. You can choose from different alarm tones, and use the Snooze feature to delay the alarm for an additional seven minutes. To set the Alarm Clock: 1. Access the Alarm Clock from the Main Menu. 2. Highlight the Alarm Time eld and press ENTER to display the Number Keypad and set the desired alarm time. 3. Highlight the Alarm Mode eld and press ENTER to display the On/Off switch. 4. Highlight the Alarm Beep eld and select the type of alarm tone desired. When you turn the alarm On, an Alarm Set message appears and allows you to turn the unit Off. When the Set Time arrives, the unit will switch On and sound the alarm beep. Press any key to silence the alarm. Calculator The Calculator Feature allows you to use your GPSmap 76CS as a calculator. You can select either a Standard or Scientific calculator and Degrees or Radians from the Options Menu. To use the Calculator: 1. Access the Calculator from the Main Menu. 2. Use the ROCKER and ENTER keys to operate the calculator. 72

Calculator Page

Alarm Clock Page

Calculator

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Stopwatch This feature allows you to use the GPSmap 76CS as a stopwatch, which includes a lap timer. You may also have the unit record the lap time based on distance. To start the stopwatch: Use the ROCKER key to highlight the Start eld and then press ENTER. To stop the stopwatch: Use the ROCKER key to highlight the Stop eld and press ENTER. To use the lap feature: With the stopwatch running, use the ROCKER key to highlight the Lap eld and then press ENTER. To reset the stopwatch: With the stopwatch stopped, use the ROCKER key to highlight the Reset eld and then press ENTER. To time lap by distance: Use the ROCKER key to highlight the Options Menu and then press ENTER. Choose Lap by Distance and press ENTER. To return to Lap by Button Press, repeat these same steps. To set a lap distance value: 1. Use the ROCKER key to highlight the Options Menu and then press ENTER. Choose Set Lap Distance and press ENTER. 2. Use the ROCKER key to highlight the eld you wish to change and then press ENTER. Enter the new value and press ENTER. When done, highlight OK and press ENTER.

Non-Enhanced Game

Game Symbols

Player

Pit Warning

Dragon Near

Dragon

Aim Arrow

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GPSmap 76CS Appendix Accessories
Accessories (Included with the Unit)
Carry Lanyard - Provides convenient method for carrying the unit. USB PC Interface Cable - Provides connection to a PC for data transfer. Also includes, MapSource Trip and Waypoint Manager CD-ROM with USB Drivers. Owners Manual - Start up instructions and detailed operation reference. Quick Start Guide - Abbreviated overview of unit operation and reference.
USB Interface Cable and MapSource Trip and Waypoint Manager CD-ROM with USB cable drivers.
Optional Accessories (Not included with the Unit)
Cigarette Lighter Adapter - Provides auxiliary power from an automobile cigarette lighter. (Not shown) GA 27C Remote GPS Antenna - Allows enhanced satellite acquisition. Includes suction and magnetic mount options. MapSource CD-ROMs - Allows transfer of detailed map data. (Not shown) Refer to Garmin web site: http://garmin.com/products/gpsmap76c/ for a list of compatible MapSource products.
GA 27C Remote GPS Antenna with MCX Connector
Serial Port PC Interface Cable with Auxiliary AC Power Supply - Provides connection to a PC for data transfer. (Not shown) Carrying Case - Provides protection during transport of the unit. (Not shown) Auto Navigation Kit - Allows installation on a vehicle dash and includes Garmin MapSource City Select North America v5 CD-ROM. Marine Mount Kit - Allows installation on a boat. Bicycle Handlebar Mount Kit - Allows installation on bicycle handlebar. Battery Pack - Rechargeable, NiMH, AA battery kit, USA receptacle. For a complete list of available accessories for use with GPSmap 76CS, refer to the Garmin web site: http://garmin.com/products/gpsmap76cs/
CAUTION: Garmin Accessories have been designed and tested specifically for use with Garmin products. Accessories offered for sale by other manufacturers have not necessarily been tested or approved by Garmin for use with Garmin Products. Use of such accessories might cause damage to your Garmin Product and void the terms of the warranty. Using Garmin Accessories with other manufacturers products is not recommended. See your Garmin Dealer or website for availability.

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Installing the Carry Lanyard and Accessory Ports
MCX External Antenna Connector

Auto Navigation Kit

Marine Mount Kit USB Connector (under

weather cover)

Power/Data Cable Connector Carry Lanyard Installation Back of GPSmap 76CS
Serial Port (under weather cover)
Bicycle Handlebar Mount Kit
Rechargeable NiMH Battery Kit
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GPSmap 76CS Appendix Specications

PHYSICAL

Case: Size: Weight: Display: Antenna: Compass: Rugged, fully gasketed, water resistant, IEC-529, IPX7 (Submersible 1 meter @ 30 minutes) 6.2H x 2.7W x 1.4D 7.6 ounces (216g) with batteries installed 1.5W x 2.2H, 256-color, high resolution, transreective TFT (160 x 240 pixels) Backlit Built-in quad helix, remote antenna capability Accuracy; +/- 5 degrees1, resolution; 1 degree
Altimeter: Accuracy; +/- 10 feet1, resolution; 1 foot Keypad: Operating Range: Nine multifunction backlit keys 5 to 158 F (-15 to 70 C)2

PERFORMANCE

Receiver: Acquisition Time: WAAS enabled, 12 parallel channel Warm: Approximately 15 seconds Cold: Approximately 45 seconds AutoLocate: Approximately 5 minutes Once per second, continuous
Update Rate: GPS Accuracy

Position: Velocity:

< 15 meters (49 feet), 95% typical3 0.05 meter/sec steady state
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DGPS Accuracy Position: Velocity: 3-5 meters (10-16 feet), 95% typical4 0.05 meter/sec steady state
Dynamics: Performs to specications to 6 gs Interfaces: NMEA 0183 version 2.3, RTCM SC-104 (for DGPS corrections) and RS-232 and USB for PC interface Data Storage Life: Map Storage: Indenite: no memory battery required Internal; approximately 115 MB
Source: Battery Life: Two 1.5 volt AA batteries or 12 V Adapter Cable, or up to 36 VDC external power Up to 20 hours (typical use)5
Specications subject to change without notice. 1. Subject to proper user calibration. 2. The temperature rating of the GPSmap 76CS may exceed the usable range of some batteries. Some batteries can rupture at high temperatures. 3. Subject to accuracy degradation to 100m 2DRMS under the U.S. DoD imposed Selective Availability (SA) Program when activated. 4. WAAS accuracy in North America. (DGPS using Beacon Receiver input.) 5. Alkaline batteries lose a signicant amount of their capacity as the temperature decreases. Use Lithium batteries when operating the GPS map 76CS in below-freezing conditions. Extensive use of screen backlighting, electronic compass and audible tones signicantly reduce battery life.

Odometer - The total distance you have traveled for all trips. Off Course - The distance off your direct course line, right or left. Pointer - The arrow that indicates the direction to travel to the next point on a route. Speed - Your current vehicle speed can be measured in miles per hour, kilometers per hour or knots. Speed - Maximum - The maximum speed you have attained since the Trip Computer was reset. Speed - Moving Avg. - The average speed while your vehicle was moving. Speed - Overall Avg. - The average speed determined by both the moving and stopped time and speed. Sunrise - The time of sunrise for the current date and location. Sunset - The time of sunset for the current date and location. Time To Destination - The estimated time enroute to your final destination, if you maintain your current speed and course. Time To Next - The estimated time enroute to the next point on your route, if you maintain your current speed and course. 86
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Time of Day - The current time and date. It can be displayed in 12 or 24 hour format in local time or universal (UTC) time. To Course - Your direction of travel to get back on course. Trip Odometer - The running total of distance traveled since the Trip Computer was reset. Trip Time - Moving - The length of time your vehicle has been in motion, since the Trip Computer was reset. Trip Time - Stopped - The length of time that the vehicle has been stopped (stationary) while the unit was powered On and tracking your location (since the Trip Computer was reset). Trip Time - Total - The total time the unit has been tracking since the Trip Computer was reset. Turn - The direction of, and distance to, the next turn on an active route. Velocity Made Good - The rate of closure on a destination based upon your current speed and course of travel. Vertical Speed - The rate of altitude gain/loss over time. Vertical Speed Dest - The measurement of your rate of acsent/decsent to a predetermined altitude. Water Speed - The data acquired from measurement devices interfaced to the GPSmap 76CS is used to calculate your current speed over water.
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Water Temperature - The temperature of water at a measured depth using measurement devices interfaced to the GPSmap 76CS. Waypoint - Destination - The last point on a route, your destination. Waypoint - Next - The next point on your route.
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Interfacing the GPSmap 76CS The GPSmap 76CS is provided with interface connection to a PC using either a serial port or USB connector cable. Connection to your computer is necessary for downloading of detailed map from Garmin MapSource Map Data CDs. You can also save routes, waypoints, and tracks from the GPSmap 76CS to MapSource. Refer to the MapSource Users Guide provided with your MapSource CDs. To connect to your computer using the USB connector: 1. Install the MapSource Trip and Waypoint Manager CD-ROM provided with your GPSmap 76CS on your PC. USB drivers, required for USB interfacing, are installed when you run the CD-ROM. Do not connect the USB cable until the drivers have been installed. 2. Lift the USB protective cover from the back of the GPSmap 60CS and insert the smaller connector on the USB cable into the matching port. 3. Connect the remaining cable end to your PC USB port. To connect to your computer using a Serial Port connector: 1. Lift the Serial Port protective cover from the back of the GPSmap 76CS and insert the round indexed connector on the cable into the matching port. 2. Connect the remaining cable end to your PC Serial port or other appropriate device. 3. Set your GPSmap 76CS interface setting to the appropriate interface format. Refer to Interface Setup on page 58.

Lift Cover Lift Cover

Connecting the GPSmap 76CS to a Computer
Serial Universal Serial Communications Bus (USB) Port Port
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Downloading MapSource Map Data
Transferring MapSource Map Data
Garmin MapSource CD-ROMs offer a variety of detailed mapping data and navigation information. MapSource is also an excellent medium for storage and safety backup of Personal Waypoints, Routes and Saved Tracks.
Garmin MapSource U.S. Topo 24K Digital Elevation Models (DEM) Maps provide elevation data at any point identified by the Panning Arrow
See your Garmin Dealer or visit the Garmin web site at: www.garmin.com for information on which maps work with the GPSmap 76CS.
If you have purchased a Garmin MapSource CD-ROM mapping program you may want to transfer detailed map data before beginning use, to provide your unit with maximum Find features and mapping capability. The GPSmap 76CS accepts up to 115 MB of map data from most MapSource products. It is not possible to transfer 3rd party maps into Garmin products. You cannot view multiple types of MapSource data in the same location at the same time (one displays over the other). When you leave a City Select area for example and enter the area of a topographic map, the display will change to contour lines. The same is true when moving from a topo map to a City Select map. Maps that are at the top of the hierarchy display over any other map information. Because new maps are constantly being released, consult your Garmin Dealer or the Garmin website to determine the order of hierarchy. Map data transfer requires the use of a PC, a Garmin MapSource CDROM, and the Universal Service Bus (USB) cable supplied with this unit. When downloading new maps, those already downloaded are overwritten. Include maps you want to retain by adding them to your new map download. Follow instructions for map transfer in the MapSource Users Manual. It is also important to note, that certain features contained in the GPSmap 76CS will not be enabled unless you are using mapping data they are designed to support, such as many of the Find Features and DEM Elevation Proles. Visit the Garmin website for details on all of the maps for use with the GPSmap 76CS.
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Appendix E
This chart is provided to help you determine the time offset settings for your current location if it is not in one of the time zones listed on the Time Setup Page. To change the UTC Offset, access the Main Menu, then Setup and then open the Time Setup Page. Highlight the Time Zone field and press the ENTER to display the list of time zones. If the desired zone is not displayed, select Other. Highlight the UTC Offset field and press ENTER to enter the appropriate offset value from the chart below. To determine your longitudinal zone, press and hold the MARK key and observe the longitude value in the Mark Waypoint Location field. It should fall within the sets of values on the chart. Press the QUIT key to avoid marking a waypoint. Longitudinal Zone Offset W180.0 to W172.5 -12.00 W172.5 to W157.5 -11.00 W157.5 to W142.5 -10.00 W142.5 to W127.5 -09.00 W127.5 to W112.5 -08.00 W112.5 to W097.5 -07.00 W097.5 to W082.5 -06.00 W082.5 to W067.5 -05.00 W067.5 to W052.5 -04.00 W052.5 to W037.5 -03.00 W037.5 to W022.5 -02.00 W022.5 to W007.5 -01.00 W007.5 to E007.5 -00.00

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Interface formats are selected from the Interface Setup on page 58 of this manual. The input/output lines on your GPSmap 76CS are RS-232 compatible, allowing easy interface to a wide range of external devices, including PCs, differential beacon receivers, marine autopilots and /or a second GPS receiver. The NMEA 0183 version 3.01 interface format is supported by the GPSmap 76CS and enables the unit to drive up to three NMEA devices. NMEA 0183 Version 3.01 Approved Sentences: GPGGA, GPGLL, GPGSA, GPGSV, GPRMB, GPRMC, GPRTE, GPVTG, GPWPL, GPBOD Garmin Proprietary Sentences: PGRME (estimated error), PGRMM (datum string), PGRMZ (altitude), PSLIB (beacon receiver control) DGPS (Differential GPS) corrections are accepted in RTCM SC-104 version 2.0 format through the Data In line. The Garmin GBR 21 is the recommended beacon receiver for use with the GPSmap 76CS. Other beacon receivers with the correct RTCM format may be used, but may not correctly display status or allow tuning control from the GPS unit. The USB Interface Cable provided with this unit allows you to connect your GPSmap 76CS to a PC-compatible computers USB port.

Interface Wiring Diagram

Data In Power(+) Ground(-) Data Out Unit Power/Data Port View
Optional Power/Data Serial Port Cable with Bare Wire Leads
GPSmap 76CS Owner's Guide copy.indd 95

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Accessories 80 Accuracy Circle 9 Activate a Route 52 Alarm Clock 72 Altimeter Calibration 25, 68 Altimeter Page 20 Altimeter Setup 68 Arrow, Panning 9 AutoZoom 62 Compass Calibration 16, 67 Compass On/Off 15 Compass Page 14 Compass Ring 14 Course Pointer 14, 18 Find Geocache 37 Find Intersections 43 Find Points of Interest 44 Find Waypoints 46
Games 76-79 Geocache Setup 65 Global Positioning System (GPS) 4 Go To 5, 33
Data Fields 11, 25, 36 Data Field Denitions 84 Date and Time Setup 66, 91 DEM Mapping Data 49, 55, 90 Detail, Map 62 Differential GPS (DGPS) 94 Display Mode 58 Display Setup 58 E Elevation 11, 20, 25 Elevation Prole 21,49,55 Exit Services 39 Exits 39 Exits, Nearest 39
Backlight Timeout 7, 58 Backlighting On/Off 7, 58 Battery Level Indicator 7 Battery Saver Mode 57 Battery Type 57 Bearing Pointer 14 Big Numbers 26
Heading Setup 67 Highway Page 58 Hunt and Fish Tables 75
Initialization 4 Interface Setup 58
Calculator Page 72 Calendar Page 71 Calibrate Altimeter 25, 68 Calibrate Compass 16, 67 Calibration Setup 68 Cautions iv-vi Cities, By Name 38 Cities, Nearest 38