WAAS for even greater accuracy!



The GPSMAP 76 is designed to provide precise GPS positioning using correction data obtained from the Wide Area Augmentation System. This unit features a built-in quad helix antenna for superior reception and can provide position accuracy to less than three meters when receiving WAAS corrections.

The GPSMAP 76 has an internal memory capacity of eight megabytes. In addition, it comes with a built-in basemap of cities, coastlines, lakes, rivers, interstates, and interstate exit information and a database of nautical navaids. This unit has eight megabytes of internal user memory for storing optional MapSource— detailed maps, including marine cartography. This memory is preloaded from the factory with worldwide cities (populations greater than 200,000) and nautical navigation aids such as lights, buoys, sound signals sand day beacons. The GPSMAP 76 is also preloaded with tide data for the United States.

An extra-large display measuring 1.6"W x 2.2"H gives users a clear view of information, while a waterproof case means the GPSMAP 76 will keep working well even if it's been submerged in water. Even more amazing, this unit will actually float if accidentally dropped in the water.




Navigation Features


 500 with name and graphic symbol, 10 nearest (automatic), 10 proximity


 50 reversible routes with up to 50 points each, plus MOB and TracBack® modes


 Automatic track log; 10 saved tracks let you retrace your path in both directions

Trip computer

 Current speed, average speed, resettable max. speed, trip timer and trip distance


 Anchor drag, approach and arrival, off-course, proximity waypoint, shallow water and deep water


 Built-in celestial tables for best times to fish and hunt, sun and moon rise, set and location

Map datums

 More than 100 plus user datum

Position format

 Lat/Lon, UTM/UPS, Maidenhead, MGRS, Loran TDs and other grids, including user grid

GPS Performance

Receiver: WAAS-enabled, 12 parallel channel GPS receiver continuously tracks and uses up to 12 satellites to compute and update your position

Acquisition times:

  • Warm: Approximately 15 seconds
  • Cold: Approximately 45 seconds
  • AutoLocate™: Approximately 5 minutes

Update rate: 1/second, continuous

GPS accuracy:

  • Position: < 15 meters, 95% typical*
  • Velocity: 0.05 meter/sec steady state

DGPS (USCG) accuracy:

  • Position: 3-5 meters, 95% typical*
  • Velocity: 0.05 meter/sec steady state

DGPS (WAAS) accuracy:

  • Position: < 3 meters, 95% typical*
  • Velocity: 0.05 meter/sec steady state

Dynamics: 6 g's

Interfaces: RS232 with NMEA 0183, RTCM 104 DGPS data format and proprietary GARMIN

Antenna: Built-in quadrifilar, with external antenna connection (MCX)

Differential: DGPS (USCG and WAAS capable)

Moving Map Features

Basemap: Detailed basemap with cities, highways, interstates, exit info, rivers, lakes; Preloaded with worldwide cities, navaids, and U.S. tide data

Uploadable Maps: Accepts up to 8 megabytes of downloaded map detail from a variety of optional MapSource CDs**



 Two "AA" batteries (not included)

Battery Life

 Up to 16 hours


Size: 2.7"W x 6.2"H x 1.2"D (6.9 x 15.7 x 3.0 cm)

Weight: Less than 1 pound (454 g)


  • 1.6"W x 2.2"H (4.1 x 5.6 cm)
  • 180 x 240 pixels, high-contrast
  • FSTN with bright backlighting

Case: Fully gasketed, high impact plastic alloy, waterproof to IEC 529 IPX7 standards

Temperature range: 5°F to 158°F (-15°C to 70°C)

User data storage: Indefinite, no memory battery required

Specifications are subject to change without notice.

* Subject to accuracy degradation to 100m 2DRMS under the United States Department of Defense-imposed Selective Availability Program.

**These units are also able to transfer waypoints, routes, and tracks between the PC and GPS using MapSourceª.

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