Garmin Astro 320, Owner'S Manual

Page: 52 / 80

52 Astro 320 and DC40 Owner’s Manual
Customizing Your Device
line leading to a destination.
• Compass —switches from an
electronic compass to a GPS
compass when you are traveling
at a higher rate of speed for a set
period of time ( Auto ), or turns the
compass off.
• Calibrate Compass — page 36 .
Altimeter Settings
From the main menu, select Setup >
Altimeter .
• Auto Calibration— allows the
altimeter to self-calibrate each time
you turn the device on.
• Barometer Mode
◦ Variable Elevation —allows the
barometer to measure changes
in elevation while you are
moving.
◦ Fixed Elevation —assumes
the device is stationary at a
fixed elevation. Therefore, the
barometric pressure should only
change due to weather.
NOTE : Use this feature when
you plan to remain stationary.
Trip data is not recorded when
Fixed Elevation is on.
• 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.