The Garmin GPS 76 is designed to provide precise GPS positioning using correction data obtained from the Wide Area Augmentation System (WAAS). 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 Garmin GPS 76 provides 1 megabyte of internal user memory to be used for storing downloaded Points of Interest data. This 1 megabyte of storage area is preloaded from the factory with worldwide cities (populations greater than 200,000) and nautical navigation aids such as lights, buoys, sound signals and day beacons, and is perfect for downloading points of interest detail from Garmin's line of MapSource CD-ROMs. The Garmin GPS 76 is also preloaded with tide data for the United States (unit is only compatible with USA tidal stations).

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 GPS 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.

The Garmin GPS 76 includes:
Garmin GPS 76 receiver
Database:
Marine Point Database (Americas)
PC interface cable
Wrist strap
Owner's manual
Quick reference guide

The specifcations for the GPS 76 are as follows:
Database: Factory preloaded with Marine Point Database (Americas)
Garmin MapSource: Accepts up to 1 megabyte of data from the optional MapSource Points of Interest CD
 Navigation Features
Waypoints/icons: 500 with name and graphic symbol, 10 nearest (automatic), 10 proximity
Routes: 50 reversible routes with up to 50 points each, plus MOB and TracBack® modes
Tracks: 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
Alarms: Anchor drag, approach and arrival, off-course, proximity waypoint, shallow water and deep water
Tables: 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 2 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)

Power
Source: Two "AA" batteries (not included)
Battery Life: Up to 16 hours

Physical
Size: 2.7"W x 6.2"H x 1.2"D (6.9 x 15.7 x 3.0 cm)
Weight: 7.7 ounces