Garmin GPSMAP 78 - Specifications Continued and Battery Life

GPSMAP 78 Series Owner’s Manual 37
Appendix
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)
Altimeter The barometric
altimeter is available
only with the GPSMAP
78S and GPSMAP
78Sc.
Compass The three-axis
compass is available
only with the GPSMAP
78S and GPSMAP
78Sc.
Maximizing Battery Life
Using the Battery Save Option
Use the battery save option to save
battery power and prolong battery life.
From the main menu, select Setup
> Display > Battery Save > On.
Decreasing the Backlight
Extensive use of screen backlighting
can signicantly reduce battery life.
You can adjust the backlight brightness
and decrease the backlight timeout to
maximize battery power.
1. Quickly press to open the
backlight status page.
2. Use the Rocker to adjust the
brightness.
Adjusting the Backlight
Timeout
From the main menu, select Setup
> Display > Backlight Timeout.