Changing The Units Of Measure; Time Settings; Position Format Settings; Heading Settings - Garmin Astro 320 Owner's Manual

Auto Archive: Sets an automatic archive method to organize
your tracks. Tracks are saved and cleared automatically.
Color: Changes the color of the track line on the map.

Changing the Units of Measure

You can customize units of measure for distance and speed,
elevation, depth, temperature, and pressure.
1
Select Setup > Units.
2
Select a measurement type.
3
Select a unit of measure for the setting.

Time Settings

Select Setup > Time.
Time Format: Sets the device to show time in a 12-hour or 24-
hour format.
Time Zone: Sets the time zone for the device. Automatic sets
the time zone automatically based on your GPS position.

Position Format Settings

NOTE: Do not change the position format or the map datum
coordinate system unless you are using a map or chart that
specifies a different position format.
Select Setup > Position Format.
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.

Heading Settings

You can customize the compass settings.
Select Setup > Heading.
Display: Sets the type of directional heading shown on the
compass.
North Reference: Sets the north reference used on the
compass.
Go To Line/Pointer: Sets the behavior of the pointer that
appears on the map. Bearing points in the direction of your
destination. Course shows your relationship to the course
line leading to the destination.
Compass: Automatically switches from an electronic compass
to a GPS compass when you are traveling at a higher rate of
speed for a period of time.
Calibrate Compass: See

Altimeter Settings

Select Setup > Altimeter.
Auto Calibration: Automatically calibrates the altimeter each
time the device is turned 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, so the barometric pressure should only change
due to weather.
Pressure Trending: Sets how the device records pressure
data. Save Always records all pressure data, which can be
helpful when you are watching for pressure fronts.
Plot Type: Records elevation changes over a period of time or
distance, records barometric pressure over a period of time,
or records ambient pressure changes over a period of time.
Calibrate Altimeter: Calibrates the altimeter.
10
page 6.

Geocaching Settings

Select Setup > Geocaches.
Geocache List: Allows you to display the geocache list by
names or codes.
Found Geocaches: Allows you to edit the number of
geocaches found. This number automatically increases as
you log a find.
Filter Setup: Allows you to create and save custom filters for
geocaches based on specific factors
chirp Searching: Allows the device to search for a geocache
containing a chirp accessory
Program chirp: Programs the chirp accessory. See the chirp
owner's manual at www.garmin.com.

Routing Settings

The device calculates routes optimized for the type of activity
you are doing. The routing settings available vary based on the
activity selected.
Select Setup > Routing.
Guidance Method: Sets the preference for optimizing route
calculation based on distance, time, on-road, or off-road
routing.
Calculate Routes for: Sets the mode of transportation for
which to calculate routes.
Lock On Road: Locks the position icon, which represents your
position on the map, onto the nearest road.
Off Road Transitions: Sets how the device routes from one
point on the route to the next. This setting is available only
for some activities. Distance routes you to the next point on
the route when you are within a specified distance of your
current point.
Avoidance Setup: Sets the road types to avoid while
navigating. This setting is available only for some activities.

Marine Map Settings

Select Setup > Marine.
Marine Chart Mode: Selects a nautical chart or a fishing chart.
Nautical displays various map features in different colors so
the marine POIs are more readable and so the map reflects
the drawing scheme of paper charts. Fishing (requires
marine maps) displays a detailed view of bottom contours
and depth soundings and simplifies map presentation for
optimal use while fishing.
Appearance: Sets the appearance of marine navigation aids on
the map.
Marine Alarm Setup: Sets alarms for when you exceed a
specified drift distance while anchored, when you are off
course by a specified distance, and when you enter water of
a specific depth.

Setting up Marine Alarms

1
From the main menu, select Setup > Marine > Marine
Alarm Setup.
2
Select an alarm type.
3
Select On.
4
Enter a distance.

Device Information

Viewing Device Information

You can view the unit ID, software version, and license
agreement.
Select Setup > About.
(page 8).
(page 8).
Device Information