The Garmin GPS 76S is a rugged, waterproof handheld GPS receiver designed for marine and outdoor navigation. It features a high-sensitivity GPS receiver, built-in worldwide basemap, barometric altimeter, electronic compass, 24 MB of internal memory for map storage, and an intuitive interface. Below are key sections covering safety, features, setup, operation, and maintenance.
Key components: Waterproof case, high-contrast display, quad-helix antenna, control buttons, data port, and battery compartment.
| Feature | Description |
|---|---|
| Waterproof | IPX7 standard, submersible to 1 meter for 30 minutes |
| High-Sensitivity GPS | Fast acquisition and tracking under tree cover |
| Built-in Basemap | Worldwide coastline, rivers, lakes, and cities |
| Barometric Altimeter | Tracks elevation changes and weather trends |
| Electronic Compass | Provides heading when stationary (requires calibration) |
| 24 MB Memory | Stores detailed maps from Garmin MapSource CDs |
| Waypoints & Routes | Stores 1000 waypoints and 50 reversible routes |
| TracBack® Feature | Retraces your path to the starting point |
| NMEA 0183 Compatible | Interfaces with autopilots and chartplotters |
| Power Source | Two AA batteries (alkaline or NiMH) |
Unpack and inspect contents. Install batteries and prepare for initial use.
WARNING! Use only recommended batteries. Ensure battery compartment seal is clean and secure for waterproofing.
Power on the unit; follow initialization prompts.
CAUTION! For accurate calibration, stay away from metal objects and magnetic sources during compass setup.
Front Panel: POWER, PAGE, ENTER/MARK, ROCKER key (up/down/left/right), QUIT, ZOOM IN/OUT.
Display Screens: Satellite Status, Map, Navigation, Highway, Main Menu, Altimeter, Compass.
Navigation: Use PAGE to cycle through screens. Use ROCKER to move cursor and select items. Press ENTER to confirm selections. Press MARK to save current location as waypoint. Use QUIT to cancel or go back.
Navigate to waypoints, follow routes, and track your path.
Tip: For best accuracy, ensure you have good satellite reception (shown on satellite status page).
Utilize the altimeter, compass, and mapping capabilities.
WARNING! Electronic compass may be affected by nearby metal objects. Calibrate away from vehicles, phones, and other electronics.
Transfer waypoints, routes, tracks, and maps between GPS and computer.
Note: Clearing memory does not delete the built-in basemap or uploaded detailed maps.
Clean with fresh water after saltwater use. Use mild soap and soft cloth. Ensure seals are clean and undamaged.
CAUTION! Do not use harsh chemicals, solvents, or high-pressure water spray. Do not open unit beyond battery compartment; internal repairs require qualified service.
FCC Compliance: This device complies with Part 15 of FCC rules. Operation is subject to conditions that it does not cause harmful interference. Contains FCC ID: IPH-00217. Industry Canada ID: 511B-00217. For support, visit www.garmin.com or contact Garmin International at 1-913-397-8200.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No power | Dead batteries | Replace with fresh AA batteries. Check polarity. |
| Poor satellite reception | Obstructed view, indoors | Move to open area with clear sky view. Ensure unit is stationary during initial acquisition. |
| Inaccurate compass | Need calibration, magnetic interference | Recalibrate compass away from metal/electronics. Follow on-screen prompts. |
| Altimeter reading wrong | Need calibration | Calibrate to known elevation point via Altimeter setup menu. |
| Cannot transfer data to PC | Wrong cable, port, or software settings | Ensure proper cable connection. Check MapSource settings (baud rate, port selection). |
| Display difficult to read | Contrast setting | Adjust contrast via Setup > Display menu. |
Reset: Press and hold POWER + PAGE + ENTER while powering on to perform master reset (erases all user data).
Service: 1-913-397-8200; www.garmin.com/support