THIS UNIT IS NO LONGER AVAILABLE BY GARMIN.
GARMIN's GPS III Plus offers cartographic capabilities formerly found only in high-end automotive navigation and marine chartplotting units. Simply plug it into a PC and download an extra 1.44 MB of map data from GARMIN's line of MapSource™ CD ROM's to give you instant detailed maps.
Whether you're cruising the streets or pounding the waves, GARMIN has the maps you need. Choose the U.S. Roads and Recreation CD for city street level detail and even inland marine features such as lake and river shorelines, boat ramp and marina locations. Other CD's give you worldwide coverage of coastlines, including a database of coastal cities, navaids and inland roads.
Even without additional cartography, the basemap in the GPS III Plus will get you where you're going. More than 10,000 new towns have been added to the permanent basemap, as well as airport locations, secondary roads in metro areas and even detailed exit information for the federal interstate highway system, including information about available lodging, food and service stations.
PLOTTER/MOVING MAP FEATURES:
Basemap: Built-in detailed Americas Highway or Atlantic Highway basemap to 20 miles with lakes, rivers, interstates, national/state highways, secondary roads in metro areas, cities, railroads, airports and a detailed exit database for the Federal Highway system in the US only MapSource: Compatible with most GARMIN MapSource™ products. Accepts up to 1.44 megabytes of downloaded map detail.
Map Scale: Screen-width scale (500 feet to 3,000 miles)
Total: 500 each with name, symbol, comment, 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: 1900 points
Map Datums: 106
Coordinates: Lat/Lon, UTM/UPS, MGRS, Loran TDs, plus other grids, including Maidenhead and User Grid
Receiver: Differential-ready 12 parallel channel receiver continuously 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
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
Interfaces: NMEA 0183 and RTCM 104 DGPS corrections
Antenna: Detachable with standard BNC connector
Size: 2.32 H x 5 L x 1.62 W inches (5.9 x 12.7 x 4.1 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)
Memory: Internal lithium battery lasts up to 10 years
Source: 10-32 VDC (4 AA batteries)
Usage: 0.75 watts
Battery Life: Up to 36 hours