78 GPSMAP 176/176C Owner’s ManualAPPENDIX > SPECIFICATIONSA PPENDIXSpecificationsPhysical SpecificationsSize: 6.18”W x 3.4”H x 2.22”D (15.7 x 8.64 x 5.72 cm)Weight: 12 oz (0.34 kg)Display:GPSMAP 176—3.8" diagonal (9.65 cm) high-contrast, FSTN displaywith backlighting (320 x 240 pixels)GPSMAP 176C—3.8” diagonal (9.65 cm) Transflective, 16 colordisplay with backlighting (320 x 240 pixels)Case: Fully gasketed, high-impact plastic alloy, waterproof to IEC529-IPX-7Temp. Range: 5°F to 158°F (-15°C to 70°C)PerformanceBattery Life: Up to 13 hours in Battery Saver ModeReceiver: Differential-ready 12 parallel channel receiverAcquisition Times: Approx. 15 seconds (warm start)Approx. 45 seconds (cold start)Approx. 5 minutes (First Time/AutoLocate®)Update Rate: 1/second, continuousGPS Accuracy: *< 15 meters (49 feet) RMS 95% typicalDGPS (USCG) Accuracy: 3–5 meters (10–16 ft), 95% typicalDGPS (WAAS) Accuracy: 3 meters (10 ft) 95% typical with DGPScorrectionsVelocity Accuracy: 0.1 knot RMS steady stateDynamics: 6g's* Subject to accuracy degradation to 100 m 2 DRMS under the U.S. DOD-imposed Selective Availability Program.PowerBatteries: Four 1.5-volt AA batteries*Source: 8–35V DCFuse: AGC/3AG - 2.0 Amp* Alkaline batteries lose a significant amount of their capacity as the temperaturedecreases. Use lithium batteries when operating the GPSMAP 176/176C inbelow freezing conditions. Extensive use of screen backlighting significantlyreduces battery life. Different battery brands vary in useful life.