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GPS III®
 

 Specifications

 Plotter/Moving Map Features

Basemap: Built-in Americas Land or International Land to 20 miles (includes lakes, rivers, railroads, coastlines, interstates, national and state highways)

Map Scale: Screen-width scale (500 feet to 3,000 miles)

 

 Navigation Features

Waypoints:

  • Total: 500 each with name, symbol, and map display option
  • Nearest: 9 (automatic) continuously updated
Routes: 20 reversible routes with up to 30 waypoints each, plus MOB and TracBack® modes

Track Log: Over 2,000 points

Map Datums: 106

Coordinates: Lat/Lon, UTM/UPS, plus 7 grids, including Maidenhead User Grid

 Performance

Receiver: Differential-ready 12 parallel channel receiver tracks and uses up to twelve satellites to compute and update a position

Acquisition Times:

  • Warm: approx. 15 seconds
  • Cold: approx. 45 seconds
  • Autolocate: approx. 5 minutes
  • EZinit: easy initialization, 45 seconds
Update Rate: 1 second, continuous

Accuracy:
  • Position: 15 meters (49 feet) RMS*
    1-5 meters (3-15 feet) RMS with
    Garmin® GBR 21 DGPS receiver (optional)
  • Velocity: 0.1 knot RMS steady state
Dynamics: 6g's

Interfaces: NMEA 183 and RS-232 DGPS corrections

Antenna: Detachable with standard BNC connector

 Physical

Size:  2.32 H x 5 L x 1.62 W inches (5.89 x 12.7 x 4.11 cm)

Weight: 9 ounces (255g) w/ batteries

Display: 2.2 W x 1.5 H inches (5.6 x 3.8 cm) high-contrast electroluminescent backlit FTN display; switchable orientation (100 x 160 pixels with gray scale)

 Power

Memory: Internal lithium battery lasts up to 10 years

Power Source: 10-32 VDC (4 AA batteries)

Usage: 0.75 watts

Battery Life: 36 hours

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.

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