CARACTERISTICAS Waypoints: Total: 250 alphanumeric Nearest: 9 (automatic) Proximity: 9 (definable) Routes: 20 reversible with up to 30 waypoints each, plus MOB and TracBack™ modes Track Log: Approx. 2,000 points Map Datums: 106 Coordinates: Lat/Lon, UTM/UPS, Loran TDs, plus 7 grids, including Maidenhead Plotter/Moving Map Features GARMIN detailed basemap: Built-in worldwide to 64 nm (32 nm U.S.) with coastlines, rivers, lakes, political boundaries, plus major cities and highways Data Cartridges: micro G-chart™ cartridges with inland water and Navionics offshore cartography for seamless, detailed mapping and worldwide coverage (optional) Plotting Scales: 1/8 to 4096 nm with dedicated push-button zoom control Receiver: Differential-ready 12 parallel channel receiver tracks all satellites in view Acquisition Times: Warm: Approx. 15 seconds Cold: Approx. 45 seconds AutoLocate™: Approx. 5 minutes 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 0180, 0182, 0183 and RTCM 104 DGPS corrections Antenna: GA 28 Remote Marine Mount with 30' cable Size: 6.18" H x 6.30" W x 2.64" D (157mm x 160mm x 67 mm) Weight: 26.9 oz. (.763 kg) Display: 5.5" diagonal (141mm) high-contrast, LCD with CCFL backlighting (160 x 240 pixels) Case: Fully gasketed, high-impact plastic alloy, waterproof to IEC 529-IPX-7 Temp. Range: 5°F to 158°F (-15°C to 70°C) Memory Backup: Internal lithium battery Power: Source: 10-40vDC Usage: 10 watts max. Specifications are subject to change without notice.