User Manual

32 GPSMAP 78 Series Owner’s Manual
Customizing Your Device
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Physical size
(W × H × D)
2.6 × 6.0 × 1.2 in.
(6.6 × 15.2 × 3.0 cm)
Weight 7.7 oz. (218.3 g) with
batteries
Display
(diagonal)
2.6 in. (66 mm)
Resolution
(W × H)
160 × 240 pixels,
backlit 65K color TFT
display
Water
resistance
Fully gasketed,
oatable, high impact
plastic alloy, waterproof
to IEC 529-IPX-7
Data storage Approximately 1.7 GB
No memory battery is
required.
The GPSMAP 78S and
78Sc have a microSD
card slot for additional
data storage.
Computer
interface
USB and serial
Battery type Two AA batteries
(alkaline, NiMH, or
lithium)
See page 34.
Battery life Up to 20 hours, typical
usage
Operating
temperature
range
From 5°F to 158°F
(from -15 to 70°C)
See page 33.
Radio
frequency/
protocol
2.4 GHz/ANT+ wireless
communications
protocol
GPS accuracy < 33 ft. (10 m) 95%
typical use
GPS is subject to
accuracy degradation
to 100 m 2DRMS under
the U.S. DoD imposed
Selective Availability
(SA) Program when
activated.
DGPS From 10 to 16 ft. (from
3 to 5 m) 95% typical
(WAAS accuracy in
North America)