Garmin 01848 LOW POWER TRANSMITTER User Manual USERS MANUAL

Garmin International Inc LOW POWER TRANSMITTER USERS MANUAL

USERS MANUAL

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Astro X20
®
owner’s manual
GPS-enabled dog tracking system
© 2011 Garmin Ltd. or its subsidiaries
All rights reserved. Under the copyright laws, this manual may not be copied, in whole or in part, without the
written consent of Garmin. Garmin reserves the right to change or improve its products and to make changes
in the content of this manual without obligation to notify any person or organization of such changes or
improvements. Go to www.garmin.com for current updates and supplemental information concerning the use
of this product.
Garmin®, the Garmin logo, Astro®, City Navigator®, and TracBack®, registered in the USA and other
countries. BaseCamp™ and myGarmin™ are trademarks of Garmin Ltd. or its subsidiaries. These trademarks
may not be used without the express permission of Garmin.
Windows® is a registered trademark of Microsoft Corporation in the United States and/or other countries.
Mac® is a registered trademark of Apple Computer, Inc. Other trademarks and trade names are those of their
respective owners.
Introduction
Introduction
 Warning
See the Important Safety and Product
Information guide in the product
box for product warnings and other
important information.
Getting Started
notice
Do not attempt to track your dog using
the Astro® and the DC 40 until you
have completed the following tasks.
1.
2.
3.
4.
5.
6.
7.
Install batteries in the Astro.
Charge the DC 40.
Turn on the devices.
Acquire satellites.
Calibrate the compass.
Attach the DC 40 to your dog.
Start a new hunt.
Astro X20 and DC40 Owner’s Manual
Installing Batteries in the
Astro
The Astro operates on two AA batteries
(not included). Use alkaline, NiMH, or
lithium batteries.
1. Remove the battery cover by
turning the D-ring 1/4 turn
counterclockwise and pulling up.
2. Insert the batteries, observing
polarity.
3. Replace the battery cover.
Charging the DC 40
Charge the DC 40 completely before
using it on a hunt. Charging a depleted
DC 40 battery takes 4½ hours.
Introduction
1. Connect the power cable ➊ to an
appropriate electrical source.
➊
➋
➊
2. Slide the charging clip ➋ onto the
DC 40.
3. Charge the DC 40 completely.
The blue LED flashes when the
DC 40 is charging. The blue LED
is solid when the DC 40 is fully
charged.
Turning On the Devices
1. On the Astro, press and hold
2. Follow the on-screen instructions.
3. On the DC 40, press and hold
➋.
The red LED ➌ flashes (single
blink) when the DC 40 is on and
searching for satellite signals.
TIP: Turn on the DC 40 and let it
acquire satellites before you put it
on your dog.
➊.
Astro X20 and DC40 Owner’s Manual
Introduction
➋
➌
Acquiring Satellite Signals
Before you can track your dog using
the Astro and the DC 40, both devices
must acquire GPS satellite signals.
Acquiring satellite signals can take a
few minutes.
1. Go outdoors to an open area, away
from tall buildings and trees.
bars on
2. Wait for the
the Astro to turn black.
The bars indicate satellite strength.
3. Wait for the DC 40 to acquire
satellite signals.
Astro X20 and DC40 Owner’s Manual
The red LED flashes (single blink)
when the DC 40 is searching for
satellite signals. The red LED
double blinks at each pulse when
the DC 40 has acquired satellite
signals.
Device Overviews
Astro
Notice
Avoid using a high-powered radio
(greater than 5 watts) in close
proximity to the Astro. It may cause
irreversible damage to the Astro.
➊ GPS antenna
➋ VHF antenna
Introduction
➌
➍
➎
➏
➐
➑
➒
➓
Power key
Display
Keypad
Belt clip button
Wrist strap slot
USB port (under weather cap)
Battery compartment
microSD card tray under batteries
DC 40
➊
VHF antenna
➋
Collar
➌
GPS antenna
➍
Power key
Keypad
DOG
Press to view the Dog
Tracker page.
MARK
Press to mark your
current location.
BACK
Press to cancel data
entry or return to the
previous menu or page.
MAP
Press to view the map.
MENU
Press to open the menu
for the active page.
Press twice to open the
main menu.
ENT
(ENTER)
Press to select options
and acknowledge
messages.
Astro X20 and DC40 Owner’s Manual
Introduction
Rocker
Press to view or scroll
through options and to
move the map pointer.
Select
Use the Rocker to select
an option or an item in a
list, and press ENTER.
IN
Press to zoom in on the
map.
Field
OUT
Press to zoom out on
the map.
The location on a page
where data is entered
or an option appears. A
highlighted field appears
yellow.
Scroll
bar
A bar that appears on
the right side of a list that
is too long to fit on the
screen. Use the Rocker
to scroll through a list.
Press IN or OUT to scroll
a set of items.
Default
The original factory
settings. You can
customize the settings,
but you can always
revert back to the factory
settings by selecting
Restore Defaults.
Adjusting the Backlight
1. Press and quickly release .
2. Use the Rocker to adjust the
brightness levels.
TIP: You can also press and
quickly release to cycle through
the brightness levels.
3. Press ENTER to select a brightness
level and close the menu.
Manual Conventions
Press
Use the keys on the
device.
Astro X20 and DC40 Owner’s Manual
Introduction
The small arrows indicate
that you should select a
series of items in order,
for example, “Select
Delete > Yes.”
Status Bar Icons
The status bar at the top of each Astro
page provides status information.
➊
Messages also indicate temporary
conditions, such as “Calculating
Route.” The message window closes as
soon as the process is complete.
Using the On-Screen Keyboard
A keyboard appears when you enter
text.
➋ ➌
➊
Indicates the satellite signal
strength.
➋
Blinks when the device detects
a signal (for example, a DC 40)
on the channel it is receiving.
➌
Indicates the remaining battery
power.
On-Screen Messages
When an on-screen message appears,
you can press ENTER to acknowledge
the message and close the window.
• Use the Rocker to select a
character, and press ENTER.
• Select DEL to backspace.
• Select
to shift.
• Select OK to save the text and
close the keyboard.
Astro X20 and DC40 Owner’s Manual
Tracking Your Dog
Tracking Your Dog
Note: The DC 40 does not transmit
its location to the Astro, and the
Astro does not indicate the location
of the DC 40, until both devices have
acquired satellite signals.
Viewing Your Dog’s Status
1. Press DOG to view the Dog
Tracker page.
The direction to the dog and
distance of the dog from the Astro
appears.
Communication with the
DC 40
The DC 40 that was packaged with
your Astro was linked with the Astro
at the factory. If you are using a
DC 40 that you purchased separately,
follow the instructions for adding
a new dog on page 13 to establish
communications with the Astro.
➊
➋
➌
➍
Navigating to Your Dog
1. Press DOG > ENTER.
2. Select Go To.
3. Follow the magenta line on the
map.
Astro X20 and DC40 Owner’s Manual
Tracking Your Dog
Dog pointer (direction to
the dog)
➋
Dog name
Note: When you are close to the dog,
the dog pointer may be inaccurate.
➌
Dog status icon (page 10)
Dog Status Icons
➍
Distance to the dog
2. If you have additional dogs, use the
Rocker to scroll through the list of
dogs.
The Astro can keep track of ten
dogs.
3. Press ENTER to view the Dog Info
page.
About the Dog Tracker Page
The dog you are tracking is identified
and the dog pointer indicates its
direction from you. The dog pointer is
most accurate when you are holding
the Astro level and the dog is farther
than 30 feet (9.1 meters) away. At less
than that distance, “NEAR” appears
instead of a distance and the dog
10
pointer is shortened.
➊





Sitting
Running
On Point
Treed
Unknown*
*The unknown status icon indicates
that the DC 40 has not acquired a
satellite signal and that the Astro
cannot determine the location of the
dog.
Astro X20 and DC40 Owner’s Manual
Tracking Your Dog
Editing Dog Information
Changing the Dog Name
The Astro assigns a default name, such
as Dog or Dog 1, to every dog (DC 40)
linked to it.
1. Press DOG > ENTER.
The Dog Info page appears.
Changing the Dog Type
You can identify the dog type so that
the appropriate dog status symbols
appear.
1.
2.
3.
4.
Press DOG > ENTER.
Press MENU.
Select Change Dog Unit Type.
Select a type.
Tracking Your Dog on the
Map
Press MAP to follow your dog on
the map.
2. Select Name.
The on-screen keyboard appears.
3. Enter the name of the dog.
Astro X20 and DC40 Owner’s Manual
11
Tracking Your Dog
➊
• The track of the dog’s
movements appears as a red
line ➎.
➋
➌
➎
➍
• Marked locations ➊ appear on
the map.
• The accuracy circle ➋ is the
area where your GPS location
data is poor. The smaller the
circle, the more precise your
location.
• The dog location appears with a
status icon and the dog name ➌.
• Your location is indicated by the
map pointer ➍.
12
About the Map
When the map orientation is Track Up,
objects on the map appear to rotate
around your position. As you move,
the entire map reorients in the direction
you are facing. To stabilize the objects,
set the orientation to North Up
(page 43).
Astro X20 and DC40 Owner’s Manual
Tracking Your Dog
Adding Dogs
The Astro can track up to ten dogs
with DC 40 collars. If you purchase
additional DC 40 devices, you can link
them to the Astro. To link, the Astro
must be close enough to the DC 40 to
touch it, or you must know the DC 40
ID number.
1. Press DOG > MENU.
2. Select Dog List > .
3. Follow the on-screen instructions.
By default, the new dog is named
“Dog” and an ID number is
randomly assigned.
Dog Signal Troubleshooting
Each dog you track has its own ID
number. If two dogs within range of
the Astro have the same ID, the Astro
warns you of a conflicting ID signal.
Follow the on-screen instructions to
resolve the conflict.
When possible, you should allow the
Astro X20 and DC40 Owner’s Manual
Astro to automatically assign IDs. If
necessary, you can manually assign a
new ID number to a dog.
Resolving the Dog Signal
Conflict
You must assign a new ID number to
the dog and change the update rate.
Press DOG > MENU.
Select Show Info.
Press MENU.
Select Change Comm. Settings.
Select an unassigned and
nonconflicting ID.
6. Change the update rate.
Both 30-second and two-minute
rates reduce battery drain, but they
create a less-detailed dog track and
collected statistics.
7. Bring the Astro within a few feet of
the DC 40.
8. Follow the on-screen instructions.
1.
2.
3.
4.
5.
13
Tracking Your Dog
Removing Dogs
1. On the Dog Tracker page, press
MENU
2. Select Dog List.
3. Select a dog in the list.
4. Select Remove.
Collar Lock
You can use the Collar Lock feature to
PIN protect your dog’s ID signal. Other
Astro users must enter the PIN in order
to track your dog. Other Astro users
can still add your dog by physically
touching the Astro to the DC 40.
1. Press DOG > ENTER > MENU.
2. Select Change Collar Lock PIN.
3. Enter a unique PIN.
Note: If you forget the PIN, the
Collar Lock feature can be overridden
by physically touching the Astro to the
DC 40.
14
Astro and DC 40 Tips
• Turn on the DC 40 and allow it to
acquire satellites before you put the
DC 40 on your dog.
This allows the DC 40 to acquire
satellite signals much faster.
• Bring extra batteries for your Astro
(page 62).
• Use a fully charged DC 40. A
fully charged DC 40 operates for
approximately 17 hours when using
five‑second interval reporting.
• Use line-of-sight radio
communication (page 12).
• The Astro can track up to ten dogs
with DC 40 collars. Only three dogs
can be viewed at one time on the
Dog Tracker page. To reduce the
text size, press MENU, and select
Small Numbers.
Astro X20 and DC40 Owner’s Manual
Locations
• Go to www.garmin.com/products
/astro for more information and
www.garmin.com/astro for a
tutorial.
Pausing the Devices During a
Hunt
If you are moving the dogs during a
hunt and you do not want to record
the transportation of the dogs, you can
pause the tracking of all dogs.
1. Press DOG > MENU.
2. Select Pause All Tracking.
You can select Resume when you
are ready to continue the hunt.
Resetting Your Dog Statistics
1. Press DOG > ENTER.
2. Select Reset.
the path of radio signals degrade the
quality of the signals. Keeping an
unobstructed line of sight between
your Astro and your dog’s DC 40
produces the best communication
signal. Obstructed radio waves result
in a poor signal. To achieve the best
line-of-sight conditions, move to the
highest elevation point in your area (for
example, on the top of a hill).
Best
Good
About Line-of-Sight Radio
Communication
The Astro and DC 40 use radio
signals to communicate. Objects in
Astro X20 and DC40 Owner’s Manual
15
Locations
Locations
Locations are landmarks that you
record and store in your Astro.
Marking a Location
Marking Your Vehicle Location
1. From the main menu, select Start
New Hunt.
2. Follow the on-screen instructions.
After the hunt, you can navigate back
to your vehicle.
Marking Your Current Location
1. Press MARK.
2. Select New or choose a default
location name such as Truck or
Camp.
3. Select OK.
flushed and the number of birds taken.
1.
2.
3.
4.
5.
Press MARK.
Select Covey.
Enter the number of birds flushed.
Enter the number of birds taken.
Select OK > OK.
Marking a Location Using the
Map
1. Press MAP.
2. Move the map pointer to a location.
3. Press ENTER.
If the location does not contain map
information, the following message
appears: “No map information at
this point. Do you want to mark a
location here?”
4. Select Yes or Save.
Marking a Covey
You can mark a covey location and
enter the estimated number of birds
16
Astro X20 and DC40 Owner’s Manual
Locations
Navigating to a Marked
Location
1. From the main menu, select Go To
Marked Location.
2. Select a marked location.
TIP: For navigation settings, see
page 45.
Editing a Marked Location
1. From the main menu, select
Advanced > Find > Marked
Locations.
2. Select a marked location.
3. Select an attribute (such as the
name).
4. Enter the new information.
Moving a Marked Location on
the Map
1. From the main menu, select
Advanced > Find > Marked
Locations.
2. Select a marked location.
Astro X20 and DC40 Owner’s Manual
3. Select Map to show the marked
location on the map.
4. Press ENTER to place a MOVE
marker next to the marked location.
5. Move the marked location to a new
location on the map.
6. Press ENTER.
Deleting a Marked Location
1. From the main menu, select
Advanced > Find > Marked
Locations.
2. Select a marked location.
3. Select Delete.
Repositioning a Marked
Location
You can change the position of a
marked location. For example, if you
move your vehicle, you can change the
location to your current position.
17
Locations
1. From the main menu, select
Advanced > Find > Marked
Locations.
2. Select a marked location.
3. Press MENU.
4. Select Reposition Here.
The position changes to your
current location.
Averaging Your Location
You can average a marked location
for more accuracy. When averaging,
the Astro takes several readings at the
same location and uses the average
value to provide more accuracy.
Projecting a Location
You can create a new location by
projecting the distance and bearing
from a marked location to a new
location.
1. From the main menu, select
Advanced > Find > Marked
Locations.
2. Select a marked location.
3. Press MENU.
4. Select Project Location.
5. Enter the bearing and distance to
the projected location.
1. Press MARK.
2. Select New > Avg to begin
averaging.
3. When the Estimated Accuracy field
reaches the level of accuracy you
want, select Save > OK.
18
Astro X20 and DC40 Owner’s Manual
Map
Map
Scaling the Map
The Astro has a preloaded basemap
that includes cities, highways, exit
information, and lake and river
outlines. The example shows enhanced
map detail using City Navigator®. Go
to www.garmin.com.
➊
Customizing the Map
➌
➋
➊
Map orientation arrow
➋
Map scale
➌
Your current location
➍
Dog location
Press IN and OUT to change the
map scale.
When you zoom in, the accuracy
of your location is indicated by
an accuracy circle. The smaller
the circle, the more precise your
location.
➍
Astro X20 and DC40 Owner’s Manual
1. Press MAP > MENU.
2. Select an option:
• Select Data Fields (page 20).
• Select Guidance Text to display
navigation information above
the map.
• Select Setup Map to customize
your map preferences
(pages 43–44).
• Select Turn Declutter On to
hide items on the map that block
road details.
19
Map
Customizing Data Fields on the
Map
You can display up to four data fields
at the top of the map to provide travel
and navigational information.
Press MAP > MENU.
Select Data Fields.
Select the number of data fields.
Press MENU.
Select Change Data Fields.
Select a field.
A list of data field options appears
(page 49).
7. Select an option.
1.
2.
3.
4.
5.
6.
Measuring Distance
You can measure the distance between
two points.
1. Press MAP > MENU.
2. Select Measure Distance.
20
An arrow appears at your current
location.
3. Move the arrow to the point you
want to measure from, and press
ENTER.
A push pin marks the beginning
point ➊.
➋
➌
➊
4. Move the arrow to another point.
REF marks the ending point ➋.
The distance between the two
points appears ➌.
Astro X20 and DC40 Owner’s Manual
Find Features
Find Features
You can use the Find menu to search
for marked locations, cities, and exits
included in the basemap. Additional
categories appear if you have optional,
compatible detailed maps loaded on
the device. When you open a category,
the list contains items near your current
location or the map pointer (if active).
Finding Locations
Navigating to a Marked
Location
1. From the main menu, select
Advanced > Find > Marked
Locations.
2. Select a marked location.
3. Select Go To.
Finding a Location by Name
1. From the main menu, select
Advanced > Find.
Astro X20 and DC40 Owner’s Manual
2. Select the type of item you want to
find.
3. Press MENU.
4. Select Find by Name.
5. Enter the name of the location.
You can select OK when the Find
list contains a match.
6. Select an option:
• Select Save to save the item as
a location.
• Select Map to display the item
as a location on the map.
• Select Go To to navigate a route
to the location.
Finding a Location Near
Another Location
1. Find a location.
2. Press MENU.
3. Select Find Near Here.
4. Select a category.
21
Find Features
The list displays locations near the
original location.
Finding a Location Near a Point
on the Map
1. Find a location.
2. Press MENU.
3. Select Change Reference.
The map opens.
4. Move the map pointer to a location
on the map.
5. Press ENTER to show a list of
items near the map location.
Downloading Geocaches
Go to my.garmin.com for details
and instructions for downloading
geocache locations from the
Internet.
Finding a Geocache
1. From the main menu, select
Advanced > Find > Geocache.
2. Select a geocache.
22
3. Select Go To to navigate to the
geocache location.
When a geocache is found, the
Astro marks the cache as found,
logs an entry into the calendar, and
shows the nearest cache.
Finding a City
1. From the main menu, select
Advanced > Find > Cities.
A list of cities near your current
location appears.
2. Select a city from the list.
Finding an Interstate Exit
1. From the main menu, select
Advanced > Find > Exits.
A list of exits near your current
location appears.
2. Select an exit.
The exit description, a list of
services near the exit, and the
distance and bearing from the exit
to the highlighted service appear.
Astro X20 and DC40 Owner’s Manual
GPS Applications
3. Select a service from the list.
Finding Recently Found
Locations
1. From the main menu, select
Advanced > Find > Recent Finds.
2. Select an item.
Using Optional Detailed
Maps
You can use optional City Navigator
maps to search for addresses,
intersections, and other locations.
The detailed maps contain millions of
points of interest, such as restaurants,
hotels, and auto services. Go to
www.garmin.com.
Finding an Address
1. From the main menu, select
Advanced > Find > Addresses.
If your device has acquired satellite
signals, the 
field is populated with your current
region.
2. Enter the city, street number, and
street name.
Matches appear as you select
characters in the name.
3. Select the address from the list.
Finding a Point of Interest
1. From the main menu, select
Advanced > Find.
2. Select an option to view points of
interest near your current location:
• Select All Points of Interest.
• Select a POI category.
3. Press MENU to narrow your
search.
4. Select an item from the list.
Stopping Navigation
Press MENU > Stop Navigation.
Astro X20 and DC40 Owner’s Manual
23
GPS Applications
GPS Applications
GPS Applications provides options
for configuring the following GPS
functions:
•
•
•
•
•
•
•
•
•
•
Trip computer (page 24)
Compass (page 24)
Altimeter (page 27)
Tracks (page 29)
Routes (page 32)
Highway (page 35)
Proximity alarms (page 35)
Turn preview (page 36)
Active route (page 36)
Satellite (page 37)
Trip Computer
The trip computer displays your current
speed, average speed, maximum
speed, trip odometer, and other helpful
statistics.
24
Resetting the Trip Computer
1. From the main menu, select
Advanced > GPS Applications >
Trip Computer.
2. Press MENU.
3. Select Reset.
4. Select the items you want to reset
or delete.
5. Select Apply.
Compass
Navigating with the Compass
From the main menu, select
Advanced > GPS Applications >
Compass.
• Hold the compass level when
navigating to ensure maximum
accuracy.
• Turn toward the direction of the
bearing pointer until the arrow
is pointing toward the top of the
compass.
Astro X20 and DC40 Owner’s Manual
GPS Applications
destination.
About the Compass
➊
➌
➋
• The compass provides navigation
data ➊ such as current speed and
estimated arrival time.
• The compass ring ➋ moves to
indicate North orientation.
• When navigating to a destination,
the bearing pointer ➌ points to
your destination, regardless of the
direction you are moving. When
the bearing pointer points toward
the top of the compass, you are
traveling directly toward your
Astro X20 and DC40 Owner’s Manual
Navigating With the Course
Pointer
This is most useful if you are
navigating on water or where there
are no major obstacles in your path. It
also helps you avoid hazards to either
side of the course, such as shoals or
submerged rocks.
1. From the main menu, select
Advanced > GPS Applications >
Compass.
2. Press MENU.
3. Select Course Pointer.
➋
➌
➊
➍
25
GPS Applications
• The course pointer ➊
indicates your relationship to
a course line ➋ leading to the
destination.
• The course pointer provides an
indication of drift (right or left)
according to the scale ➌.
• The scale refers to the distance
between dots on the course
deviation indicator ➍.
• The course line to your
destination is based on your
original starting point.
4. Move back to the “course line to
destination” to compensate for
deviation and to get back on course.
Navigating with Sight ‘N Go
You can point the device at an object
in the distance, such as a water tower,
lock in the direction, and then navigate
to the object.
26
1. From the main menu, select
Advanced > GPS Applications >
Compass.
2. Press MENU.
3. Select Sight ‘N Go.
The bearing pointer points to the
top of the compass.
4. Hold the device at eye level and
line up the two sighting marks ➊
with a distant object.
➊
5. Select Lock Direction.
Astro X20 and DC40 Owner’s Manual
GPS Applications
6. Select an option:
• Select Set Course to navigate to
the distant object.
• Select Project Location
(page 18).
• Select Re-Sight to set course on
a different object.
Calibrating the Compass
notice
Calibrate the electronic compass
outdoors. Do not stand near objects that
influence magnetic fields, such as cars,
buildings, or overhead power lines.
You should calibrate the compass after
moving long distances, experiencing
temperature changes, or changing the
batteries.
1. Press DOG > MENU.
2. Select Calibrate Compass > Start.
3. Follow the on-screen instructions.
Astro X20 and DC40 Owner’s Manual
Altimeter
Plotting Elevation on the
Altimeter
1. From the main menu, select
Advanced > GPS Applications >
Altimeter.
Your current elevation ➊ and the
rate of your ascent or descent ➋
appear.
➍
➌
➋
➊
2. Press MENU.
3. Select Plot Over Time or Plot
Over Distance ➌.
27
GPS Applications
This option is only available when
you are plotting elevation.
After you set the elevation plot, you
can adjust the zoom ranges ➍
(page 28).
Displaying Barometric
Pressure on the Altimeter
1. From the main menu, select
Advanced > GPS Applications >
Altimeter.
2. Press MENU.
3. Select View Pressure Plot.
Viewing Points on the Altimeter
Plot
Select individual points on an elevation
plot or a pressure plot to view the
elevation (or pressure) reading, the
time of day, and the date when the
point was recorded.
28
Navigating to a Point on the
Plot
1. From the main menu, select
Advanced > GPS Applications >
Altimeter.
2. Press left or right on the Rocker
to display crosshairs and scroll the
crosshairs across the plot.
3. Press ENTER.
The point appears on the map with
location coordinates, the compass
bearing, and the distance from your
current location.
4. Press MARK to save the point as a
location.
5. Navigate to the location (page 21).
Setting the Zoom Ranges
1. From the main menu, select
Advanced > GPS Applications >
Altimeter.
2. Press MENU.
3. Select Zoom Ranges.
Astro X20 and DC40 Owner’s Manual
GPS Applications
4. Set the zoom range on the vertical
axis.
5. Set the zoom range on the
horizontal axis.
Resetting the Altimeter
1. From the main menu, select
Advanced > GPS Applications >
Altimeter.
2. Press MENU.
3. Select Reset.
4. Select the items you want to reset
or delete.
5. Select Apply.
Calibrating the Altimeter
1. Go to a location where the elevation
or barometric pressure is known.
2. From the main menu, select
Advanced > GPS Applications >
Altimeter.
3. Press MENU.
4. Select Calibrate Altimeter.
Astro X20 and DC40 Owner’s Manual
5. Follow the on-screen instructions.
Tracks
A track is a recording of your path
and of the path of your dog. The track
log contains information about points
along the recorded path, including
time, location, and elevation for each
point.
Customizing Your Track Log
1. From the main menu, select
Advanced > GPS Applications >
Tracks > Setup.
2. Select an option:
• Select Wrap When Full to
replace the oldest data with new
data when the track log is full.
• Select a Record Method:
◦◦ Select Distance, and enter a
distance interval.
◦◦ Select Time, and enter a
time interval.
29
GPS Applications
◦◦ Select Auto to specify the
interval of frequency.
Recording points more often
creates a more accurate
track, but fills up the track
log faster.
• Select Color to change the color
of the active track.
Saving the Entire Track Log
From the main menu, select
Advanced > GPS Applications >
Tracks > Save > Yes.
About Saved Tracks
You can rename the track, view the
track distance, view the calculated area,
and change the units for the calculated
area. You can also change the color
for the track on the map. Changing
the color of a dog’s saved track also
changes the dog pointer color on the
Dog Tracker page.
30
Saving Part of the Track Log
1. From the main menu, select
Advanced > GPS Applications >
Tracks > Save > No.
The entire track appears on the
map.
2. Move the map pointer to the
beginning point.
3. Press ENTER.
4. Move the map pointer to the ending
point.
5. Press ENTER.
Viewing a Track on the Map
From the main menu, select
Advanced > GPS Applications >
Tracks > Save > Yes > Map.
The track appears on the map.
Astro X20 and DC40 Owner’s Manual
GPS Applications
5. Press left or right on the Rocker to
scroll across the track profile.
While scrolling, press ENTER to
show the point on the map.
6. Press up or down on the Rocker to
set the zoom range.
Viewing Track Profiles
After you save a track, you have a
record of the path you traveled and a
track altitude profile.
1. From the main menu, select
Advanced > GPS Applications >
Tracks.
2. Select a saved track.
3. Press MENU.
4. Select Profile.
The beginning and the end of the
track are marked by a flag.
Astro X20 and DC40 Owner’s Manual
Digital Elevation Models Maps
Using Digital Elevation Models (DEM)
maps, you can create a track elevation
profile that includes elevation data. Go
to www.garmin.com/cartography
/ontheTrail for more information about
US Topo maps.
Navigating a Saved Track
You can use TracBack® with a saved
track to navigate back to a point on the
track.
1. From the main menu, select
Advanced > GPS Applications >
Tracks > TracBack.
2. Move the map pointer to a point on
the track.
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GPS Applications
3. Press ENTER.
4. Select an option:
• Select Follow Road to navigate
back to the selected point using
available roadways.
• Select Follow Track to retrace
your original path of travel.
Marking a Location on a Saved
Track
1. From the main menu, select
Advanced > GPS Applications >
Tracks.
2. Select a saved track.
3. Select Map.
4. Move the map pointer to a location
on the track.
5. Press MARK.
6. Select New.
7. If necessary, edit the location
information.
8. Select OK.
32
Calculating the Area of a Track
1. From the main menu, select
Advanced > GPS Applications >
Tracks.
2. Press MENU.
3. Select Area Calculation.
4. When you are finished, select Stop.
5. If necessary, select Area to change
the units of measure.
6. Select Save.
Clearing the Track Log
From the main menu, select
Advanced > GPS Applications >
Tracks > Clear > Yes.
Routes
A route is a sequence of points or saved
locations that leads you to your final
destination.
Astro X20 and DC40 Owner’s Manual
GPS Applications
Creating a Route
Navigating a Saved Route
1. From the main menu, select
Advanced > GPS Applications >
Routes.
2. Select a route.
3. Select Navigate.
Stopping Navigation
Press MENU > Stop Navigation.
1. From the main menu, select
Advanced > GPS Applications >
Routes > New.
2. Select