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78 GPSMAP 176/176C Owner’s Manual
APPENDIX > SPECIFICATIONS
APPENDIX
Specifications
Physical Specifications
Size: 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 display
with backlighting (320 x 240 pixels)
GPSMAP 176C—3.8” diagonal (9.65 cm) Transflective, 16 color
display with backlighting (320 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)
Performance
Battery Life: Up to 13 hours in Battery Saver Mode
Receiver: Differential-ready 12 parallel channel receiver
Acquisition Times: Approx. 15 seconds (warm start)
Approx. 45 seconds (cold start)
Approx. 5 minutes (First Time/AutoLocate
®
)
Update Rate: 1/second, continuous
GPS Accuracy
: *< 15 meters (49 feet) RMS 95% typical
DGPS (USCG) Accuracy
: 3–5 meters (10–16 ft), 95% typical
DGPS (WAAS) Accuracy
: 3 meters (10 ft) 95% typical with DGPS
corrections
Velocity Accuracy
: 0.1 knot RMS steady state
Dynamics: 6g's
* Subject to accuracy degradation to 100 m 2 DRMS under the U.S. DOD-
imposed Selective Availability Program.
Power
Batteries: Four 1.5-volt AA batteries*
Source: 8–35V DC
Fuse: AGC/3AG - 2.0 Amp
* Alkaline batteries lose a significant amount of their capacity as the temperature
decreases. Use lithium batteries when operating the GPSMAP 176/176C in
below freezing conditions. Extensive use of screen backlighting significantly
reduces battery life. Different battery brands vary in useful life.