Garmin GPSMap 66 Service Manual
GPSMAP® 66
Owner’s Manual
© 2018 Garmin Ltd. or its subsidiaries
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Garmin®, the Garmin logo, ANT+®, Auto Lap®, AutoLocate®, BlueChart®, City Navigator®, GPSMAP®, inReach®, TracBack®, VIRB®, and Xero® are trademarks of Garmin Ltd. or its subsidiaries,
registered in the USA and other countries. chirp™, Connect IQ™, Garmin Connect™, Garmin Explore™, Garmin Express™, and tempe™ are trademarks of Garmin Ltd. or its subsidiaries. These
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Table of Contents
Introduction.....................................................................1
Device Overviews....................................................................... 1
GPSMAP 66s/st Device Overview......................................... 1
GPSMAP 66sr Device Overview............................................1
Battery Information..................................................................... 1
Maximizing Battery Life.......................................................... 1
Turning On Battery Save Mode............................................. 1
Turning On Expedition Mode................................................. 1
Long-Term Storage................................................................ 1
Installing Batteries...................................................................... 1
Installing a NiMH Battery Pack................................................... 2
Charging the Battery Pack..................................................... 2
Charging the GPSMAP 66sr Device........................................... 2
Turning On the Device................................................................ 2
Turning On the Backlight....................................................... 2
Adjusting the Backlight...........................................................2
Buttons........................................................................................2
Locking the Keys....................................................................3
Acquiring Satellite Signals.......................................................... 3
Using the Main Pages.................................................... 3
Opening the Main Menu............................................................. 3
Map............................................................................................. 3
Changing the Map Orientation............................................... 3
Measuring Distance on the Map............................................ 3
Map Page Settings.................................................................3
Map Settings..................................................................... 3
Advanced Map Settings.................................................... 3
Enabling Maps....................................................................... 3
Compass.....................................................................................3
Using the Compass................................................................3
Course Pointer....................................................................... 3
Navigating with Sight 'N Go................................................... 4
Compass Settings.................................................................. 4
Calibrating the Compass................................................... 4
Heading Settings............................................................... 4
Trip Computer............................................................................. 4
Trip Computer Settings.......................................................... 4
Altimeter......................................................................................4
Altimeter Plot Settings............................................................4
Altimeter Settings.............................................................. 4
Calibrating the Barometric Altimeter................................. 5
Navigation....................................................................... 5
Navigating to a Destination......................................................... 5
Navigating with the Map.........................................................5
Navigating with the Compass................................................ 5
Stopping Navigation............................................................... 5
Waypoints................................................................................... 5
Creating a Waypoint.............................................................. 5
Navigating to a Waypoint....................................................... 5
Editing a Waypoint................................................................. 5
Deleting a Waypoint............................................................... 5
Waypoint Averaging............................................................... 5
Projecting a Waypoint............................................................ 5
Moving a Waypoint on the Map............................................. 5
Finding a Location Near a Waypoint...................................... 5
Setting a Waypoint Proximity Alarm.......................................5
Adding a Waypoint to a Route............................................... 6
Repositioning a Waypoint to Your Current Location.............. 6
Routes........................................................................................ 6
Creating a Route.................................................................... 6
Navigating a Saved Route..................................................... 6
Viewing the Active Route.................................................. 6
Editing a Route...................................................................... 6
Viewing a Route on the Map
Viewing the Elevation Plot of a Route.................................... 6
Editing the Name of a Route.................................................. 6
Reversing a Route................................................................. 6
Deleting a Route.................................................................... 6
Recordings..................................................................................6
Recording Settings.................................................................6
Advanced Recording Settings........................................... 6
Viewing the Current Activity................................................... 7
Navigating Using TracBack®................................................. 7
Stopping the Current Activity................................................. 7
Navigating a Saved Activity................................................... 7
Deleting a Saved Activity....................................................... 7
Reversing an Activity............................................................. 7
Creating a Track from a Saved Activity..................................7
Optional Maps.............................................................................7
Purchasing Additional Maps.................................................. 7
Finding an Address................................................................ 7
.................................................. 6
Connected Features....................................................... 7
Connected Feature Requirements............................................. 7
Pairing a Smartphone with Your Device..................................... 8
Phone Notifications..................................................................... 8
Viewing Phone Notifications.................................................. 8
Hiding Notifications................................................................ 8
Managing Notifications...........................................................8
Connecting to a Wireless Network..............................................8
Connect IQ Features.................................................................. 8
Downloading Connect IQ Features........................................ 8
Downloading Connect IQ Features Using Your Computer.... 8
Viewing Connect IQ Widgets................................................. 8
Garmin Explore........................................................................... 8
Joining a GroupTrack Session....................................................8
Tips for GroupTrack Sessions............................................... 8
Main Menu Tools............................................................ 9
BirdsEye Imagery....................................................................... 9
Downloading BirdsEye Imagery............................................. 9
Geocaches..................................................................................9
Registering Your Device at Geocaching.com........................ 9
Connecting to Geocaching.com........................................ 9
Downloading Geocaches Using a Computer....................... 10
Geocache Searches............................................................ 10
Searching for a Geocache.............................................. 10
Searching for a Geocache on the Map........................... 10
Filtering the Geocache List.................................................. 10
Saving a Custom Geocache Filter.................................. 10
Editing a Custom Geocache Filter.................................. 10
Viewing Geocache Details................................................... 10
Navigating to a Geocache................................................... 10
Using Hints and Clues to find a Geocache..................... 10
Logging the Attempt............................................................. 10
chirp..................................................................................... 11
Enabling chirp Searching................................................ 11
Finding a Geocache with a chirp..................................... 11
Removing Live Geocache Data from the Device................. 11
Removing Your Device Registration From
Geocaching.com.................................................................. 11
Setting a Proximity Alarm......................................................... 11
Editing or Deleting a Proximity Alarm.................................. 11
Sending and Receiving Data Wirelessly................................... 11
Selecting a Profile..................................................................... 11
Calculating the Size of an Area................................................ 11
Using the VIRB Remote............................................................11
Using the Flashlight.................................................................. 11
Using the inReach Remote....................................................... 11
Satellite Page............................................................................12
GPS Satellite Settings..........................................................12
Table of Contents i
Customizing the Device............................................... 12
Customizing the Data Fields..................................................... 12
Setup Menu.............................................................................. 12
System Settings................................................................... 12
Satellite Settings............................................................. 12
Serial Interface Settings.................................................. 13
Display Settings................................................................... 13
Changing the Color Mode............................................... 13
Bluetooth Settings................................................................ 13
Wi‑Fi Settings.......................................................................13
Routing Settings...................................................................13
Setting the Device Tones..................................................... 13
Geocaching Settings............................................................ 13
Wireless Sensors................................................................. 14
Pairing Your Wireless Sensors....................................... 14
Fitness Settings................................................................... 14
Marking Laps by Distance............................................... 14
Marine Settings.................................................................... 14
Setting Up Marine Alarms............................................... 14
Menu Settings...................................................................... 14
Customizing the Main Menu............................................14
Changing the Page Sequence........................................ 14
Position Format Settings...................................................... 14
Changing the Units of Measure........................................... 14
Time Settings....................................................................... 14
Profiles................................................................................. 15
Creating a Custom Profile............................................... 15
Editing a Profile Name.................................................... 15
Deleting a Profile............................................................. 15
Resetting Data and Settings................................................ 15
Restoring Default Page Settings..................................... 15
Device Information....................................................... 15
Product Updates....................................................................... 15
Setting Up Garmin Express................................................. 15
Attaching the Carabiner Clip..................................................... 15
Removing the Carabiner Clip............................................... 15
Attaching the Wrist Strap.......................................................... 15
Device Care.............................................................................. 15
Cleaning the Device............................................................. 16
Data Management.................................................................... 16
File Types............................................................................ 16
Memory Cards..................................................................... 16
Installing a Memory Card in the GPSMAP 66s/st
Device............................................................................. 16
Installing a Memory Card in the GPSMAP 66sr Device.. 16
Connecting the Device to Your Computer........................... 16
Transferring Files to Your Device........................................ 16
Deleting Files....................................................................... 16
Disconnecting the USB Cable..............................................16
GPSMAP 66s/st Specifications.................................................17
GPSMAP 66sr Specifications................................................... 17
Viewing E-label Regulatory and Compliance Information........ 17
Appendix....................................................................... 17
Data Fields................................................................................17
Getting More Information.......................................................... 18
Optional Accessories................................................................ 18
tempe................................................................................... 18
Tips for Pairing ANT+ Accessories with Your Garmin
Device.................................................................................. 18
Troubleshooting........................................................................ 19
Restarting the GPSMAP 66s/st Device................................19
Restarting the GPSMAP 66sr Device.................................. 19
About Heart Rate Zones........................................................... 19
Fitness Goals....................................................................... 19
Heart Rate Zone Calculations.............................................. 19
Index.............................................................................. 20
ii Table of Contents
Introduction
WARNING
See the Important Safety and Product Information guide in the
product box for product warnings and other important
information.
Micro-USB port (under weather cap)
Flashlight
microSD card slot (under weather cap)
Mounting spine
Device Overviews
GPSMAP 66s/st Device Overview
GNSS antenna
Power button
Buttons
Micro-USB port (under weather cap)
microSD® card slot (under batteries)
Battery compartment
Mounting spine
Battery cover D-ring
GPSMAP 66sr Device Overview
Battery Information
WARNING
The temperature rating for the device may exceed the usable
range of some batteries. Alkaline batteries can rupture at high
temperatures.
NOTICE
Alkaline batteries lose a significant amount of their capacity as
the temperature decreases. Use lithium batteries when
operating the device in below freezing conditions.
Maximizing Battery Life
You can do several things to extend the life of the batteries.
• Reduce the backlight brightness (Adjusting the Backlight,
page 2).
• Reduce the backlight timeout (Display Settings, page 13).
• Reduce the flashlight brightness or flash frequency (Using
the Flashlight, page 11).
• Use battery save mode (Turning On Battery Save Mode,
page 1).
• Use expedition mode (Turning On Expedition Mode,
page 1).
• Turn off wireless connectivity (Wi‑Fi Settings, page 13).
• Turn off Bluetooth® technology (Bluetooth Settings,
page 13).
• Turn off additional satellite systems (GPS and Other Satellite
Systems, page 13).
Turning On Battery Save Mode
You can use battery save mode to prolong the battery life.
Select Setup > Display > Battery Save > On.
In battery save mode, the screen shuts off when the backlight
times out. You can select the power key to turn on the screen.
Turning On Expedition Mode
You can use expedition mode to prolong the battery life. In
expedition mode, the screen shuts off, the device enters low
power mode, and the device collects fewer GPS track points.
Select Setup > Expedition Mode.
1
Select an option:
2
• To enable the device to prompt you to turn on expedition
mode when you turn off the device, select Prompted.
• To automatically turn on expedition mode after two
minutes of inactivity, select Auto.
• To never turn on expedition mode, select Never.
In expedition mode, the green LED flashes occasionally.
Long-Term Storage
When you do not plan to use the GPSMAP 66s/st device for
several months, remove the batteries. Stored data is not lost
when batteries are removed.
GNSS antenna
Status LED
Power button
Buttons
Introduction 1
Installing Batteries
The GPSMAP 66s/st handheld device operates using two AA
batteries (not included). Use NiMH or lithium batteries for best
results.
NOTE: The GPSMAP 66sr is not compatible with AA batteries.
Turn the D-ring counter-clockwise, and pull up to remove the
1
cover.
Insert two AA batteries, observing polarity.
2
When you connect the device to a power source, the device
turns on.
Charge the battery completely.
5
Charging the GPSMAP 66sr Device
NOTICE
To prevent corrosion, thoroughly dry the USB port, the weather
cap, and the surrounding area before charging or connecting to
a computer.
Replace the battery cover, and turn the D-ring clockwise.
3
Installing a NiMH Battery Pack
The GPSMAP 66s/st device operates using a NiMH battery pack
(optional) or two AA batteries (Installing Batteries, page 1).
NOTE: The GPSMAP 66sr is not compatible with the NiMH
battery pack.
Turn the D-ring counter-clockwise, and pull up to remove the
1
cover.
Locate the battery pack .
2
Insert the battery pack, observing polarity.
3
Gently press the battery pack into place.
4
Replace the battery cover, and turn the D-ring clockwise.
5
Charging the Battery Pack
NOTICE
To prevent corrosion, thoroughly dry the USB port, the weather
cap, and the surrounding area before charging or connecting to
a computer.
Do not attempt to use the device to charge a battery that was
not provided by Garmin®. Attempting to charge a battery that
was not provided by Garmin can damage the device and void
the warranty.
Before you can connect the USB cable to your device, you may
need to remove optional mount accessories.
NOTE: The device does not charge when outside the approved
temperature range (GPSMAP 66s/st Specifications, page 17).
You can charge the battery using a standard wall outlet or a
USB port on your computer.
Pull up the weather cap from the USB port .
1
NOTE: The device does not charge when it is outside the
approved temperature range (GPSMAP 66sr Specifications,
page 17).
Lift the weather cap .
1
Plug the small end of the power cable into the charging port
2
on the device.
Plug the other end of the power cable into a compatible AC
3
power adapter.
Plug the AC power adapter into a standard wall outlet.
4
Charge the device completely.
5
Turning On the Device
Hold .
Turning On the Backlight
Select any key to turn on the backlight.
The backlight turns on automatically when alerts and
messages are displayed.
Adjusting the Backlight
Select to open the status page.
1
Use and to adjust the brightness.
2
TIP: You can select NV to reduce the backlight intensity for
compatibility with night vision goggles.
Buttons
FIND Select to open the search menu.
Hold to mark your current location as a man overboard
(MOB) location and activate navigation.
MARK Select to save your current location as a waypoint.
QUIT Select to cancel or return to the previous menu or page.
Select to scroll through the main pages.
ENTER Select to choose options and acknowledge messages.
Select to control the current activity recording (from the Map,
Plug the small end of the USB cable into the USB port on
2
your device.
Plug the large end of the USB cable into an AC adapter or a
3
computer USB port.
If necessary, plug the AC adapter into a standard wall outlet.
4
2 Introduction
MENU Select to open the options menu for the page that is
PAGE Select to scroll through the main pages.
Compass, Altimeter, and Trip Computer pages).
currently open.
Select twice to open the main menu (from any page).
Select , , , or to select menu options and move the
map cursor.
Select to zoom in on the map.
Select to zoom out on the map.
Locking the Keys
You can lock the keys to prevent inadvertent key presses.
Select > Lock Keys.
Acquiring Satellite Signals
It may take 30 to 60 seconds to acquire satellite signals.
Go outdoors to an open area.
1
If necessary, turn on the device.
2
Wait while the device searches for satellites.
3
flashes while the device determines your location.
in the status bar shows the satellite signal strength.
When the device acquires satellite signals, it automatically starts
recording your path as an activity.
Using the Main Pages
The information needed to operate this device is found on the
main menu, map, compass, trip computer, and altimeter pages.
Select PAGE or QUIT to scroll through the main pages.
Opening the Main Menu
The main menu gives you access to tools and setup screens for
waypoints, activities, routes, and more (Main Menu Tools,
page 9, Setup Menu, page 12).
From any page, select MENU twice.
Map
represents your location on the map. As you travel, moves
and displays your path. Depending on your zoom level, waypoint
names and symbols may appear on the map. You can zoom in
on the map to see more detail. When you are navigating to a
destination, your route is marked with a colored line on the map.
Changing the Map Orientation
From the map, select MENU.
1
Select Map Setup > Orientation.
2
Select an option:
3
• Select North Up to show north at the top of the page.
• Select Track Up to show your current direction of travel at
the top of the page.
• Select Automotive Mode to show an automotive
perspective with the direction of travel at the top.
Measuring Distance on the Map
You can measure the distance between multiple locations.
From the map, move the cursor to a location.
1
Select MENU > Measure Distance.
2
Select additional locations on the map.
3
Map Page Settings
From the map, select MENU.
Stop Navigation: Stops navigating the current route.
Map Setup: Enables you to open additional map settings (Map
Settings, page 3).
Measure Distance: Allows you to measure the distance
between multiple locations (Measuring Distance on the Map,
page 3).
Restore Defaults: Restores the map to factory default settings.
Map Settings
From the map, select MENU, and select Map Setup.
Configure Maps: Enables or disables the maps currently
loaded on the device (Enabling Maps, page 3).
Orientation: Adjusts how the map is shown on the page
(Changing the Map Orientation, page 3).
Dashboard: Sets a dashboard to display on the map. Each
dashboard shows different information about your route or
your location.
Guidance Text: Sets when the guidance text is shown on the
map.
Advanced Setup: Enables you to open advanced map settings
(Advanced Map Settings, page 3).
Advanced Map Settings
From the map, select MENU, and select Map Setup >
Advanced Setup.
Auto Zoom: Automatically selects the appropriate zoom level
for optimal use on your map. When Off is selected, you must
zoom in or out manually.
Detail: Selects the amount of detail shown on the map. Showing
more detail may cause the map to redraw more slowly.
Shaded Relief: Shows detail relief on the map (if available) or
turns off shading.
Vehicle: Sets the position icon, which represents your position
on the map. The default icon is a small blue triangle.
Zoom Levels: Adjusts the zoom level at which map items
appear. The map items do not appear when the map zoom
level is higher than the selected level.
Text Size: Selects the text size for map items.
Enabling Maps
You can enable map products installed on your device.
From the map, select MENU > Map Setup > Configure
1
Maps.
Select the toggle switch to enable each installed map.
2
Compass
When navigating, points to your destination, regardless of the
direction you are moving. When points toward the top of the
electronic compass, you are traveling directly toward your
destination. If points any other direction, turn until it points
toward the top of the compass.
Using the Compass
You can use the compass to navigate an active route.
Hold the device level.
1
Follow to your destination.
2
Course Pointer
The course pointer is most useful when you are navigating on
water or where there are no major obstacles in your path. It can
also help you avoid hazards near the course, such as shoals or
submerged rocks.
To enable the course pointer, from the compass, select MENU >
Setup Heading > Go To Line (Pointer) > Course (CDI).
Using the Main Pages 3
The course pointer indicates your relationship to the course
line leading to the destination. The course deviation indicator
(CDI) provides the indication of drift (right or left) from the
course. The scale refers to the distance between dots on
the course deviation indicator, which tell you how far off course
you are.
Navigating with Sight 'N Go
You can point the device at an object in the distance, lock in the
direction, and navigate to the object.
Select Sight 'N Go.
1
Point the device at an object.
2
Select Lock Direction > Set Course.
3
Navigate using the compass.
4
Compass Settings
From the compass, select MENU.
Sight 'N Go: Allows you to point the device at an object in the
distance, and navigate using the object as a reference point
(Navigating with Sight 'N Go, page 4).
Stop Navigation: Stops navigating the current route.
Change Dashboard: Changes the theme and information
displayed on the dashboard.
Set Scale: Sets the scale for the distance between the dots on
the course deviation indicator.
Calibrate Compass: Allows you to calibrate the compass if you
experience irregular compass behavior, for example, after
moving long distances or after extreme temperature changes
(Calibrating the Compass, page 4).
Setup Heading: Allows you to customize the compass heading
settings (Heading Settings, page 4).
Change Data Fields: Customizes the compass data fields.
Restore Defaults: Restores the compass to factory default
settings.
Calibrating the Compass
Before you can calibrate the electronic compass, you must be
outdoors, away from objects that influence magnetic fields, such
as cars, buildings, or overhead power lines.
The device has a 3-axis electronic compass. You should
calibrate the compass after moving long distances, experiencing
temperature changes, or changing the batteries.
From the compass, select MENU.
1
Select Calibrate Compass > Start.
2
Follow the on-screen instructions.
3
Heading Settings
From the compass, select MENU, and 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: Allows you to calibrate the compass if you
experience irregular compass behavior, for example, after
moving long distances or after extreme temperature changes
(Calibrating the Compass, page 4).
Trip Computer
The trip computer displays your current speed, average speed,
trip odometer, and other helpful statistics. You can customize
the trip computer layout, dashboard, and data fields.
Trip Computer Settings
From the trip computer, select MENU.
Reset: Resets all the trip computer values to zero. For accurate
information, reset the trip information before beginning a trip.
Change Data Fields: Customizes the trip computer data fields.
Change Dashboard: Changes the theme and information
displayed on the dashboard.
NOTE: Your customized settings are remembered by the
dashboard. Your settings are not lost when you change
profiles (Profiles, page 15).
Insert Page: Inserts an additional page of customizable data
fields.
TIP: You can use the arrow keys to scroll through the pages.
Remove Page: Removes an additional page of customizable
data fields.
More Data: Adds additional data fields to the trip computer.
Less Data: Removes data fields from the trip computer.
Restore Defaults: Restores the trip computer to factory default
settings.
Altimeter
By default, the altimeter displays the elevation over the distance
traveled. You can customize altimeter settings (Altimeter
Settings, page 4). You can select any point on the plot to view
details about that point.
Altimeter Plot Settings
From the altimeter, select MENU.
Reset: Resets the altimeter data, including waypoint, track, and
trip data.
Altimeter Setup: Access additional altimeter settings (Altimeter
Settings, page 4).
Adjust Zoom Ranges: Adjusts the zoom ranges shown on the
altimeter page.
Change Data Fields: Allows you to customize the altimeter data
fields.
Restore Defaults: Restores the altimeter to factory default
settings.
Altimeter Settings
From the altimeter, select MENU > Altimeter Setup.
Auto Calibration: Once allows the altimeter to automatically
calibrate one time when you start an activity. Continuous
allows the altimeter to calibrate throughout the duration of
your activity.
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: Allows you to manually calibrate the
barometric altimeter (Calibrating the Barometric Altimeter,
page 5).
4 Using the Main Pages
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