GPSMAP 78 Series Owner’s Manual
Customizing Your Device
Position Format
—sets the position
format in which a given location
reading appears.
Map Datum
—sets the coordinate
system on which the map is
structured.
Map Spheroid
—shows the
coordinate system the device is
using. The default coordinate
system is WGS 84.
Altimeter Settings
From the main menu, select
Setup
>
Altimeter
.
Auto Calibration
—the altimeter
to self-calibrates each time you turn
the device on.
Barometer Mode
Variable Elevation
—the
barometer functions while you
are moving.
Fixed Elevation
—the
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barometer functions while you
are stationary.
Pressure Trending
Save When Power On
—
records pressure data only when
the device is turned on. This
can be useful when you are
watching for pressure fronts.
Save Always
—records pressure
data every 15 minutes, even
when the device is turned off.
Plot Type
Elevation/Time
—records
elevation changes over a period
of time.
Elevation/Distance
—records
elevation changes over a
distance.
Barometric Pressure
—records
barometric pressure over a
period of time.
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