GPSMAP 640 All-In-One Marine Automotive GPS Owners Manual

GPSMAP 640 All-In-One Marine Automotive GPS Owners Manual
GPSMAP® 620
GPSMAP 640
owner’s manual
© 2008–2013 Garmin Ltd. or its subsidiaries
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Introduction
Introduction
The GPSMAP® 620 and GPSMAP 640 are both marine and
automotive GPS-enabled navigation devices. When you place the
device in a mount installed on your boat, it powers on in marine
mode. When you place the device in an automotive mount, it
powers on in automotive mode.
Note: The GPSMAP 620 can be used in the automotive mode
only if optional City Navigator NT maps are purchased and loaded
onto the device.
This manual is divided in two sections. The first section describes
how to use the GPSMAP 620 and GPS 640 in marine mode, and
the second section describes how to use the device in automotive
mode. The sections are labeled with tabs along the edge of the page
to help identify the usage mode.
 WARNING
See the Important Safety and Product Information guide in the
product box for product warnings and other important information.
Contact Garmin®
Contact Garmin Product Support if you have any questions while
using your GPSMAP 620 or GPSMAP 640. In the USA, go to
www.garmin.com/support, or contact Garmin USA by phone at
(913) 397.8200 or (800) 800.1020.
In the UK, contact Garmin (Europe) Ltd. by phone at 0808
2380000.
In Europe, go to www.garmin.com/support and click Contact
Support for in-country support information, or contact Garmin
(Europe) Ltd. by phone at +44 (0) 870.8501241.
Manual Conventions
In this manual, when you are instructed to touch something, use
your finger to touch that item on the screen. Small arrows (>) used
in the text indicate that you should touch a series of items in order.
For example, if you see, “Touch Charts > Navigation Chart”,
you should touch the Charts button on the screen, and then touch
Navigation Chart.
Product Registration
Help us better support you by completing our online registration
today. Go to http://my.garmin.com. Keep the original sales receipt,
or a photocopy, in a safe place.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
i
Table of Contents
Table of Contents
Introduction............................................................................i
Product Registration...................................................................... i
Contact Garmin®................................................................................................................................... i
Manual Conventions...................................................................... i
Getting Started......................................................................1
Identifying the GPSMAP 620 and GPSMAP 640 Features........... 1
Identifying the Mounting Bracket Features................................... 1
Using the Mounting Bracket.......................................................... 2
Powering the Device On and Off.................................................. 3
Removing and Inserting the Battery Pack..................................... 3
Inserting and Removing a Secure Digital (SD) Card.................... 4
Marine Mode: Getting Started.............................................5
Step 1: Mount Your GPSMAP 620 or GPSMAP 640.................... 5
Step 2: Configure Your Device...................................................... 5
Step 3: Acquire Satellites.............................................................. 5
Step 4: Use Your GPSMAP 620 or GPSMAP 640........................ 5
Navigating Directly to a Destination.............................................. 6
Saving Your Current Location....................................................... 6
Navigating Directly to a Saved Location....................................... 6
Stopping Navigation...................................................................... 7
Adjusting the Volume.................................................................... 7
Adjusting the Backlight.................................................................. 7
Marine Mode: Using Charts.................................................8
Using the Navigation Chart........................................................... 8
ii
Interacting with Objects on the Navigation Chart.......................... 9
Accessing Additional Object or Chart Information......................... 9
Using Perspective 3D................................................................. 10
Using BlueChart g2 Vision.......................................................... 10
Using Mariner’s Eye 3D...............................................................11
Using Fish Eye 3D.......................................................................11
Using Fishing Charts....................................................................11
Enabling High-Resolution Satellite Imagery................................ 12
Marine Mode: Navigating...................................................13
Step 1: Choose a Destination..................................................... 13
Step 2: Set and Follow the Course............................................. 13
Marine Mode: Where To?...................................................19
Searching for Marine Services.................................................... 19
Searching for Waypoints............................................................. 19
Searching for Saved Routes....................................................... 19
Searching for Saved Tracks........................................................ 20
Searching by Name.................................................................... 20
Marine Mode: Using Waypoints and Tracks....................21
Using Man Overboard (MOB) Waypoints................................... 21
Marking a Waypoint at Your Current Location............................ 21
Creating a Waypoint from the Navigation Chart......................... 22
Editing Waypoint Details............................................................. 22
Using Tracks............................................................................... 22
Marine Mode: Using the Dashboard.................................24
Using the Compass Screen........................................................ 24
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Table of Contents
Using the Numbers Screen......................................................... 25
Using the Trip Screen................................................................. 25
Marine Mode: Viewing Almanac Data...............................26
Configuring Perspective 3D Options and Mariner’s Eye 3D
Options..................................................................................... 50
Fish Eye 3D Settings.................................................................. 51
Fishing Chart Settings................................................................. 51
Configuring the Active Track Options.......................................... 52
Configuring the Numbers Screen................................................ 52
Marine Mode: Managing User Data...................................28
Automotive Mode: Getting Started...................................53
Viewing Tide Station Information................................................ 26
Viewing Current Information....................................................... 26
Viewing Celestial Information...................................................... 27
Transferring Marine Data (Waypoints, Routes, Tracks) to or from
an SD Card............................................................................... 28
Backing Up Marine Data to a Computer..................................... 28
Copying or Merging MapSource® Marine Data to the
GPSMAP 620 or GPSMAP 640................................................ 29
Marine Mode: Managing Information from Other Vessels..
30
Viewing AIS Information.............................................................. 30
Viewing DSC Information............................................................ 34
Marine Mode: Advanced Configuration............................38
Configuring System Settings....................................................... 38
Changing Units of Measure........................................................ 39
Configuring Communications Settings........................................ 40
Configuring Alarm Settings......................................................... 41
Configuring My Boat................................................................... 42
Configuring Other Vessels.......................................................... 43
Configuring Navigation Settings.................................................. 43
Configuring Navigation Chart Options........................................ 45
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Step 1: Mount Your GPSMAP 620 or GPSMAP 640.................. 53
Step 2: Configure Your Device.................................................... 53
Step 3: Acquire Satellites............................................................ 53
Step 4: Use Your Device............................................................. 53
Finding Your Destination............................................................. 54
Adding a Stop............................................................................. 54
Taking a Detour........................................................................... 54
Stopping the Route..................................................................... 54
Automotive Mode: Where To?...........................................55
Finding an Address..................................................................... 55
Setting a Home Location............................................................. 55
Go! Page Options....................................................................... 56
Finding a Place by Spelling the Name ....................................... 56
Searching near Another Location................................................ 56
Finding Recently Found Places.................................................. 56
Favorites..................................................................................... 57
Finding a Place Using the Map................................................... 58
Using Custom Routes................................................................. 58
Entering Coordinates.................................................................. 59
iii
Table of Contents
Navigating Off Road.................................................................... 59
Automotive Mode: Using the Map.....................................60
Next Turn.................................................................................... 60
Turn List...................................................................................... 60
Trip Computer............................................................................. 61
Automotive Mode: Managing Files...................................62
Copying Files to the Unit............................................................. 62
Copying Automotive Data to the Unit Using MapSource............ 63
Deleting Automotive Files .......................................................... 63
Automotive Mode: Using the Tools..................................64
Settings....................................................................................... 64
Where Am I?............................................................................... 64
Picture Viewer............................................................................. 64
My Data....................................................................................... 64
Automotive Mode: Advanced Configuration...................65
Changing the System Settings.................................................... 65
Changing the Navigation Settings............................................... 65
Adjusting the Display Settings.................................................... 65
Adjusting the Volume.................................................................. 66
Adjusting the Backlight................................................................ 66
Updating the Time Settings......................................................... 66
Setting the Languages................................................................ 66
Changing the Map Settings......................................................... 67
Changing Security Settings......................................................... 67
Restoring All Settings.................................................................. 67
iv
Appendix.............................................................................68
Calibrating the Screen................................................................ 68
Resetting Your GPSMAP 620 or GPSMAP 640.......................... 68
Updating the Software................................................................ 68
Clearing User Data..................................................................... 68
Battery Information .................................................................... 68
Charging Your GPSMAP 620 or GPSMAP 640.......................... 69
Changing the Fuse on the Automotive Mount............................. 69
Caring for the Unit....................................................................... 69
Additional Maps.......................................................................... 70
About GPS Satellite Signals....................................................... 70
Extras and Optional Accessories................................................ 70
Specifications.............................................................................. 71
Declaration of Conformity........................................................... 71
Software License Agreement...................................................... 71
Troubleshooting ......................................................................... 72
Messages and Alarms (Marine Mode)........................................ 73
Index....................................................................................74
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Getting Started
Getting Started
Identifying the GPSMAP 620 and
GPSMAP 640 Features
➊
Identifying the Mounting Bracket Features
➍
➍
➌
➍
Marine
Mounting Bracket
➋
➎
➌
➊
➋
➌
➍
Power button—manually turn the device on or off.
MCX connector—connect an external GPS antenna.
USB connector—connect the device to a computer.
Battery locking ring—lift and rotate counter-clockwise to
release the battery.
➎ Battery—removable lithium-ion rechargeable battery.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
➊
➊
➋
➌
Automotive
Mounting Bracket
Bail-mount adapter—connect the marine mounting bracket to
the marine bail mount.
➋
Ball-socket adapter—connect the mounting bracket adapter to
a compatible automotive dashboard mount. (The automotive
kit is an optional accessory for the GPSMAP 620 and
GPSMAP 640).
➌ Audio line out—connect the unit to an audio output source
with a standard 1/8 in. (3.5 mm) stereo audio plug.
➍ Locking tab—use to lock the device into the mount.
1
Getting Started
 CAUTION
The ball-socket adapter on the GPSMAP 620 and GPSMAP 640
is not compatible with Garmin automotive mounts other than the
included mount. Do not mount the device on a windshield.
Notice
When you remove the GPSMAP 620 or GPSMAP 640 from the
marine mounting bracket, dry the metal contacts and use the
attached weather cap to prevent corrosion.
Using the Mounting Bracket
Notice
Do not use the automotive mounting bracket in your boat. The
power connector and speaker assembly are not water resistant, and
therefore unsuitable for marine use. Additionally, do not use the
automotive-mount base in your boat. The automotive-mount base
does not connect to the dashboard using mounting hardware, and
therefore is not stable in marine conditions.
To install the marine mounting bracket in your boat, see the
GPSMAP 620/640 Marine Mount Installation Instructions.
NOTE: To mount the GPSMAP 620 or GPSMAP 640 into your
boat console, purchase the GPSMAP 600 Series Flush Mount Kit at
www.garmin.com.
2
To install the automotive mounting bracket in your car:
1. Place the automotive-mount base on your dashboard, and
press down on each of the four sides. The base bends and
conforms to your dashboard.
2. Snap the mounting bracket onto the automotive-mount arm.
3. Plug the vehicle power cable into a power outlet in your vehicle.
Tip: If the bottom surface of the automotive mount slides on the
dashboard due to dust and dirt buildup, wipe it clean using a wet
cloth.
To place the GPSMAP 620 or
GPSMAP 640 in the mounting
bracket:
1. Flip up the locking tab on top of
the mounting bracket.
2. Fit the bottom of the device into
the cradle.
3. Tilt the device back until it
stops.
4. Flip down the locking tab to
hold the device in the mounting
bracket.
Placing the GPSMAP 620
or GPSMAP 640 in the
Mounting Bracket
To remove the device from the mounting bracket:
1. Flip up the locking tab on top of the mounting bracket.
2. Tilt the device forward, and lift it out of the mounting bracket.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Getting Started
Powering the Device On and Off
Power on the GPSMAP 620 or the GPSMAP 640:
• If the mounting bracket on your boat or in your car is connected
to power, the device powers on when you place it in the mount.
• To power on the device manually, press and hold until the
Garmin logo appears on the screen.
Power off the GPSMAP 620 or the GPSMAP 640:
• When you remove the device from the mounting bracket, you
will be prompted to continue on battery power. Touch Turn Off
to power off the device.
• To power off the device manually, press and hold until the
unit powers off.
Note: If you manually turn off the device while it is connected to
a power source, it will continue to charge the battery.
Notice
If the marine mounting bracket is not wired through the ignition
or a switch, the GPSMAP 620 or GPSMAP 640 will drain the
boat battery, even when powered off. Remove the device from the
mounting bracket to avoid draining the boat battery.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Removing and Inserting the Battery Pack
Notice
This product contains a lithium-ion battery. To prevent damage,
remove the unit from the vehicle or boat when exiting or store it
out of direct sunlight.
To remove the battery pack:
1. Remove the GPSMAP 620 or the GPSMAP 640 from the
mounting bracket.
2. On the back of the device, lift up the battery locking ring and
turn it counter-clockwise.
3. Tilt the battery pack away from the device and lift it out.
To Insert the battery pack:
1. On the back of the GPSMAP 620 or the GPSMAP 640, fit the
bottom of the battery pack into the device.
2. Tilt the battery pack toward the device until it is tight.
3. Turn the locking ring clockwise to lock the battery pack in place.
3
Getting Started
Important battery notes:
• Before using the GPSMAP 620 or the GPSMAP 640 for the first
time, charge the battery for at least six hours.
• The lithium-ion battery pack used in the device is primarily a
backup battery source. Use the device in a mount with external
power whenever possible.
• If the device will not be used for an extended time (longer than
one week), remove the battery pack.
2. Place an SD card into the opening with the label showing, with
the SD card contacts facing away from the battery contacts.
3. Slide the SD card into the SD card slot, and press until it clicks
softly and locks in place.
4. Insert the battery pack.
Notice
The GPSMAP 620 and the GPSMAP 640 are waterproof to the
IPX7 standard only when the battery is connected and locked
in place. Use extreme caution around water when removing the
battery from the device.
Inserting and Removing a Secure Digital
(SD) Card
To preserve the IPX7 water resistance of the GPSMAP 620 or the
GPSMAP 640, the SD card slot is located under the battery.
To insert an SD card:
1. Remove the battery pack. The SD card slot is in the bottom of
the battery compartment, on the opposite side from the battery
contacts.
4
Inserting an SD Card
To remove an SD card:
1. Remove the battery.
2. Press in on the SD card until it clicks softly and releases from
the SD card slot.
3. Remove the SD card.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Getting Started
Marine Mode: Getting Started
Step 1: Mount Your GPSMAP 620 or
GPSMAP 640
Step 4: Use Your GPSMAP 620 or
GPSMAP 640
➊
➋➌ ➍
1. Install the marine mount in your boat according to the
GPSMAP 620/640 Marine Mount Installation Instructions.
2. Place the device in the marine mounting bracket (page 2).
➎
Step 2: Configure Your Device
To power on your device if it does not power on automatically,
press and hold until the Garmin logo appears on the screen.
Follow the on-screen prompts to set up the marine mode on the
device for the first time. To power off your GPSMAP 620 or
GPSMAP 640, press and hold .
Step 3: Acquire Satellites
1. Go outdoors to an open area, away from tall buildings and
trees.
2. Turn on your GPSMAP 620 or GPSMAP 640.
Acquiring satellite signals can take a few minutes. The bars
indicate satellite strength. When at least one of the bars is green,
your device has acquired satellite signals. Now you can select a
destination and navigate to it.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Home Screen
➊
➋
➌
➍
➎
Usage mode. A boat icon represents marine mode, and a car
icon represents automotive mode. Touch this icon to change
modes.
GPS satellite strength.
Battery status.
Current time.
Home screen categories and actions. Touch an icon to view the
associated menu or perform the associated action.
5
Marine Mode: Getting Started
Navigating Directly to a Destination
1. From the Home screen, touch Charts > Navigation Chart.
2. On the Navigation chart, touch the place you would like to
navigate to.
• Touch
and
to zoom in and out. Touch anywhere on
the chart and drag to pan the map.
• For more information on using charts, see page 8.
3. When the pointer icon is on the location you want to navigate
to, touch Navigate To > Go To.
4. Follow the magenta line drawn between your current location
and your destination. Navigate with caution. Avoid land masses
and obstacles while following the line to your destination.
Tips:
• In addition to navigating directly to your destination, you
can create a route or allow the device to create a route. For
advanced navigation options, see page 13.
• You can also use the Compass screen to actively navigate to
your destination by following a pointer on a compass.
See page 24 for more information.
6
Direction to
destination
Navigation
information
Position and
heading
Navigating Directly to a Destination
Saving Your Current Location
To save a location, such as your marina or a good fishing spot,
mark it as a waypoint.
1. From the Home screen, touch Mark.
2. If you want to name the waypoint, touch Edit Waypoint >
Name. Use the on-screen keyboard to enter a name other than
the number assigned to the waypoint by default.
Navigating Directly to a Saved Location
1. From the Home screen, touch Where To? > Waypoints.
2. Touch the waypoint you want to navigate to.
3. Touch Navigate To > Go To.
4. Follow the magenta line drawn between your current location
and your destination. Navigate with caution. Avoid land masses
and obstacles while following the line to your destination.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Getting Started
Tips:
• In addition to navigating directly to your destination, you
can create a route or allow the device to create a route. For
advanced navigation options, see page 13.
• You can also use the Compass screen to actively navigate to
your destination by following a pointer on a compass.
See page 24 for more information.
Stopping Navigation
1. While navigating, from the Navigation chart, touch Menu.
2. Touch Stop Navigation.
Adjusting the Backlight
1. From any screen, press and quickly release .
2. Touch and drag the backlight slider bar left to decrease the
brightness and right to increase the brightness. The box to the
right of the backlight slider bar shows the backlight level as a
percentage.
Touch Color Mode to change between Day Colors and Night
Colors. The Auto setting automatically changes the colors
depending on the time of day.
Note: You can also stop navigation from the Where To? screen.
Adjusting the Volume
1. From any screen, press and quickly release .
2. Touch Volume.
3. Touch and drag the volume slider bar left to decrease the
volume and right to increase the volume. The box to the right of
the volume slider bar shows the volume level as a percentage.
To mute the volume, touch the box to the right of the volume slider
bar. The word Mute replaces the volume percentage.
Note: The device must be connected to an external audio source
for you to hear audio alerts in Marine Mode.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
7
Marine Mode: Using Charts
Marine Mode: Using Charts
The GPSMAP 620 is loaded with a basic worldwide imagery map.
The GPSMAP 640 is loaded with a basic worldwide imagery map
and detailed BlueChart® g2 offshore cartography for US waters.
You can use optional BlueChart g2 Vision® preprogrammed SD
cards to get the most out of your device. For more information on
BlueChart g2 Vision, see page 10.
There are four ways to view charts:
• Navigation Chart—displays an overhead view of the basic
worldwide imagery map and the optional BlueChart g2 Vision
charts and photos.
• Perspective 3D—displays a view from above and behind your
boat for a visual navigation aid (page 10).
• Mariner’s Eye 3D—displays a detailed, three-dimensional
view from above and behind your boat for a visual navigation
aid (page 11).
• Fishing Chart—removes navigational data from the chart and
enhances bottom contours for depth recognition (page 11).
• Fish Eye 3D—provides an underwater view that visually
represents the sea floor according to information on the chart
(page 11).
8
Note: Mariner’s Eye 3D and Fish Eye 3D chart views are
available only if you use a BlueChart g2 Vision SD card (page 10).
The Fishing chart is available if you use a BlueChart g2 Vision SD
card or a BlueChart g2 SD card, or if your built-in map supports
Fishing charts.
Using the Navigation Chart
From the Home screen, touch Charts > Navigation Chart.
Use the Navigation chart to plan a course (page 13), to view map
information, and as a visual aid while navigating.
Panning the Navigation Chart
1. From the Home screen, touch Charts > Navigation Chart.
2. Touch and drag the chart to view other areas on the chart.
3. Touch Stop Panning to return the Navigation chart to your
current location.
Zooming In and Out on the Navigation Chart
The scale at the bottom of the chart (
) indicates the zoom
level. The bar under the number represents the numeric scale
distance on the map.
Touch
and
to zoom in and out on the Navigation chart.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Using Charts
Interacting with Objects on the Navigation
Chart
1. Touch a point on the Navigation chart.
2. Touch an option:
Note: The options that appear are dynamic and depend on the
point you touched.
• Review—view details of the chart objects near the pointer.
(Review only appears if the pointer is near multiple objects
on the chart—if the pointer is near only one object, the name
of the object appears instead of Review.)
• Navigate To—view the navigation options (page 13).
• Create Waypoint—marks a waypoint at the location of the
pointer (page 22).
• Information—view additional information about an object or
an area of the chart.
• Measure Distance—view the distance and bearing of the
object from your current location. The information appears
in a window on the upper-left corner of the screen. Touch
Set Reference to measure from a location other than your
current location.
Accessing Additional Object or Chart
Information
1. Touch an object on the chart or an area of the chart.
2. Touch Information, and choose from the following options:
• Tides—view tide information provided by the tide station
closest to the object or area of the chart (page 26).
• Currents—view current information provided by the current
station closest to the object or area of the chart (page 26).
• Celestial—view sunrise and sunset almanac data for the
object or area of the chart (page 27).
• Local Services—view a list of the marinas and marine
services closest to the object or area of the chart.
• Chart Notes—view National Oceanic and Atmospheric
Administration (NOAA) information associated with the chart
containing the object.
Note: You can touch and drag the pointer to a new location.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
9
Marine Mode: Using Charts
Viewing Aerial Photos
Using BlueChart g2 Vision
1. On the navigation chart, touch a camera icon.
• A standard camera icon ( ) indicates an overhead photo.
• A camera icon with a cone (
) indicates a perspective
photo. The photo was taken from the location of the camera,
pointed in the direction of the cone.
2. Touch Aerial Photo.
• Mariner’s Eye 3D—provides a view from above and behind
the boat for a three‑dimensional navigation aid. The BlueChart
g2 Vision Mariner’s Eye 3D is more detailed than the standard
Perspective 3D screen.
• Fish Eye 3D—provides an underwater, three-dimensional
view that visually represents the sea floor according to the
information on the chart.
• Fishing Charts—displays the chart with enhanced bottom
contours and without navigational data. This chart works well
for offshore deep-sea fishing.
• High Resolution Satellite Imagery—provides high-resolution
satellite images for a realistic view of the land and water on the
Navigation chart.
• Detailed Roads and POI data—displays roads, restaurants,
and other points of interest (POIs) along the shore.
• Auto Guidance—uses specified safe depth, safe height, and
chart data to suggest the best passage to your destination.
You can view aerial photos of marinas and other navigationally
significant landmarks in the region covered by an inserted
BlueChart g2 Vision SD card.
Using Perspective 3D
Perspective 3D provides a view from above and behind the boat
(according to your heading), and provides a visual navigation aid.
When navigating, you can use the Perspective 3D screen to better
follow your course, indicated by a highlighted line. See page 13 for
more information on navigation.
To access the Perspective 3D screen from the Home screen, touch
Charts > Perspective 3D.
Touch to move the view closer to your boat and lower to the
water. Touch to move the view away from the boat. This is
indicated by the scale (
) at the bottom of the screen.
10
Optional BlueChart g2 Vision preprogrammed SD cards allow you
to get the most out of your device. In addition to detailed marine
charting, BlueChart g2 Vision has the following features:
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Using Charts
Using Mariner’s Eye 3D
When using a BlueChart g2 Vision SD card, you can view the
Mariner’s Eye 3D screen. The Mariner’s Eye 3D screen is similar
to the Perspective 3D screen (page 10), but renders a true 3D
screen. This view is helpful when navigating tricky shoals, reefs,
bridges, or channels, and is beneficial when trying to identify entry
and exit routes in unfamiliar harbors or anchorages. Mariner’s Eye
3D provides a three‑dimensional view of both the shore and the sea
floor.
To access the Mariner’s Eye 3D screen from the Home screen,
touch Charts > Mariner’s Eye 3D.
As with the Perspective 3D screen, touch to move the view
closer to your boat and lower to the water. Touch to move the
view away from the boat. This is momentarily indicated by the
scale (
) at the bottom of the screen.
Touch and drag the map to the left or the right to pan the 3D
perspective.
To access the Fish Eye 3D screen from the Home screen, touch
Charts > Fish Eye 3D.
Note: When navigating, the magenta line will not appear on the
Fish Eye 3D screen, although any enabled navigation data bars will
appear.
Using Fishing Charts
Use the fishing chart to view detailed bottom contours and depth
soundings on the chart. There are no navigation aids such as buoys
and lights on the fishing chart.
The fishing chart uses highly detailed bathymetric data, and is best
for offshore deep-sea fishing.
Note: The Fishing chart is available if you use a BlueChart
g2 Vision SD card or a BlueChart g2 SD card, or if your built-in
map supports Fishing charts.
Using Fish Eye 3D
Using the depth contour lines of the BlueChart g2 Vision
cartography, Fish Eye 3D provides an underwater view of the sea
floor or lake bottom. The and buttons adjust the view in the
same way as the Mariner’s Eye 3D.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Fishing Chart
Navigation Chart
11
Marine Mode: Using Charts
To access the Fishing chart screen from the Home screen, touch
Charts > Fishing Chart.
Touch
and
to zoom in and out on the Fishing chart.
You can navigate using the Fishing chart just as you would when
using the Navigation chart.
When enabled, the high resolution satellite images are only present
at lower zoom levels. If you cannot see the high resolution images
in your BlueChart g2 Vision region, zoom in by touching , or
set the detail level higher by touching Menu > Navigation Chart
Setup > Chart Appearance > Detail.
Enabling High-Resolution Satellite
Imagery
You can overlay high-resolution satellite images on the land,
the sea, or both portions of the Navigation chart when using a
preprogrammed BlueChart g2 Vision SD card.
To enable satellite imagery:
1. While viewing the Navigation chart, touch Menu > Navigation
Chart Setup > Photos.
2. Touch one of the following:
• Off—standard chart information is shown on the map.
• Land Only—standard chart information is shown on water
with photos overlaying the land.
• Photo Map Blend—photos overlay both the water and
the land at a specified opacity. The higher you set the
percentage, the more the satellite photos cover both water
and land.
12
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Navigating
Marine Mode: Navigating
To navigate using the GPSMAP 620 or GPSMAP 640, first choose
a destination, then set a course or create a route. Follow the course
or the route on the Navigation chart or on the Perspective 3D or
Mariner’s Eye 3D screen.
TIP: You can also use the Compass screen to follow a course or
a route on the Navigation chart, the Perspective 3D screen, or the
Mariner’s Eye 3D screen. See page 24 for more information.
Step 1: Choose a Destination
You can choose a destination using either the Navigation chart or
the Where To? menu.
Choosing a Destination Using the Navigation
Chart
1. From the Home screen, touch Charts > Navigation Chart.
2. On the Navigation chart, touch the place you would like to
navigate to. The
pointer icon indicates the destination on the
chart.
Tip: Touch and to zoom in and out. Touch anywhere on
the chart and drag to pan the map. For more information on using
charts, see page 8.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Choosing a Destination Using Where To?
1. From the Home screen, touch Where To?.
2. Touch a category:
• Waypoints—view a list of locations you marked previously
(page 19).
• Routes—view a list of routes you saved previously
(page 19).
• Tracks—view a list of recorded tracks (page 20).
• Offshore Services—view a list of nearby marinas and other
offshore points of interest, listed by proximity (page 19).
• Search by Name—search nearby marinas and other
offshore points of interest by name (page 20).
3. Touch the location you want to navigate to.
Step 2: Set and Follow the Course
You can set a course three ways:
• Go To—(direct course) create a direct line from your current
location to the destination (page 14).
• Route To—create a route from the destination to your current
location, adding turns along the way (page 15).
13
Marine Mode: Navigating
• Guide To—use the chart data on a BlueChart g2 Vision SD card
to automatically suggest a passage from your current location to
the destination (page 17).
After you set the course, follow the course using the Navigation
chart, the Perspective 3D screen, or the Mariner’s Eye 3D screen.
Setting a Direct Course (Go To)
When the pointer icon is on the location you want to navigate
to, or you have selected a destination using Where To?, touch
Navigate To > Go To.
Following a Direct Course (Go To) on the
Navigation Chart, Perspective 3D Screen, or
Mariner’s Eye 3D Screen
After you set the course using Go To, a magenta line represents
the direct course from the start point to the end point, and does not
move, even when you are off course.
 CAUTION
When using Go To, a direct course and a corrected course may pass
over land or shallow water. Use visual sightings and steer to avoid
land, shallow water, and other dangerous objects.
end point. The corrected course line is dynamic, and it moves with
your boat when you are off course.
1. After you set a course, from the Home screen, touch Charts
and then touch Navigation Chart, Perspective 3D, or
Mariner’s Eye 3D.
2. Follow the magenta line (direct course).
3. Steer off course to avoid land, shallow water, and other
obstacles on the water.
4. When you are off course, follow the purple line (corrected
course) to travel to your destination, or steer back to the
magenta line (direct course).
Direct course
Corrected
course
Start point
Following a Direct Course on the
Navigation Chart
In the center of the magenta line is a thinner purple line that
represents the corrected course from your current location to the
14
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Navigating
Direct course
2. Touch the location where you want to make the last turn toward
your destination.
Corrected
course
Following a Direct Course on the
Mariner’s Eye 3D Screen
Note: When following a course, important navigation
information appears in a data bar along the top of the chart. To
adjust the settings of the data bar, see page 46.
Creating a Route (Route To)
1. When the
pointer icon is on the location you want to
navigate to, or you have selected a destination using Where
To?, touch Navigate To > Route To.
Adding the Last Turn
3. Touch Add Turn.
4. To add an additional turn, touch another location where you
want to make a turn (working backward from the destination)
and then touch Add Turn. You can add up to 250 turns to a
route.
Adding an Additional Turn
GPSMAP 620 and GPSMAP 640 Owner’s Manual
15
Marine Mode: Navigating
5. Touch Done to finish creating the route and to set the course, or
touch Cancel Route to delete the route.
 CAUTION
Even when you carefully create a route, legs may pass over land or
shallow water. Use visual sightings and steer to avoid land, shallow
water, and other dangerous objects.
When you are off course, an orange arrow appears to help steer you
back onto the route leg to the next turning point. This orange arrow
represents the Course to Steer.
Complete Route
Saving a Created Route (Route To)
You can save up to 50 routes, with up to 250 turns in each route.
1. After you create a route, touch Menu > Stop Navigation.
2. Touch Yes to save your current active route.
Following a Route (Route To) on the
Navigation Chart, Perspective 3D Screen, or
Mariner’s Eye 3D Screen
After you create a route using Route To or choose a saved route
from the Where To? menu, a magenta and purple line appears
between the start point and the first turning point, then continues
on to each subsequent turning point. This magenta and purple line
represents the route leg (from turning point to turning point), and
does not move, even when you are off course.
16
1. After you create a route using Route To or choose a saved
route from the Where To? menu, from the Home screen, touch
Charts and then touch Navigation Chart, Perspective 3D, or
Mariner’s Eye 3D.
2. Follow the magenta and purple line (route leg) from the start
point to the first turning point.
3. After you reach the first turning point, follow the magenta and
purple line (route leg) to each subsequent turning point, until
you reach the end point.
4. Steer off course to avoid land, shallow water, and other
obstacles on the water.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Navigating
5. When you are off course, follow the orange arrow (Course to
Steer) to steer back to the magenta and purple line (route leg).
Route turn
Course to
Steer
Route leg
Start point
Following a Route on the
Navigation Chart
Route turn
When using a preprogrammed BlueChart g2 Vision SD card, you
can use Auto Guidance to automatically create a suggested passage
based on available BlueChart g2 Vision chart information. See
page 42 for instructions on setting up Auto Guidance for your boat.
When the pointer icon is on the location you want to navigate
to, or you have selected a destination using Where To?, touch
Navigate To > Guide To.
 CAUTION
Course to
Steer
Route leg
Following a Route on the
Mariner’s Eye 3D Screen
Note: When following a route, important navigation information
appears in a data bar along the top of the chart. To adjust the
settings of the data bar, see page 46.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Setting an Automatic Course (Guide To)
The Auto Guidance feature of the BlueChart g2 Vision SD card
is based on electronic chart information. Carefully compare the
course to all visual sightings, and avoid any land, shallow water, or
other obstacles that may be in your path.
Following an Automatic Course (Guide To) on the
Navigation Chart, the Perspective 3D Screen, or
the Mariner’s Eye 3D Screen
After you create an automatic course using Guide To, a magenta
line appears. The magenta line represents the suggested passage
between the start point and the end point, and does not move, even
when you are off course.
17
Marine Mode: Navigating
1. After you set an automatic course using Guide To, from the
Home screen, touch Charts and then touch Navigation Chart,
Perspective 3D, or Mariner’s Eye 3D.
2. Follow the magenta line from the start point to the end point.
3. Steer off course to avoid land, shallow water, and other
obstacles on the water.
4. When you are off course, steer back to the magenta line when
the path is clear.
Note: When following a course, important navigation
information appears in a data bar along the top of the chart. To
adjust the settings of the data bar, see page 46.
18
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Where To?
Marine Mode: Where To?
Use the Where To? menu on the Home screen to search for, and
navigate to, nearby fuel, repairs, and other services, as well as
waypoints and routes.
Searching for Marine Services
NOTE: This feature may not be available in all areas.
1. From the Home screen, touch Where To? > Offshore
Services.
2. Touch the marine service category to which you want to
navigate. A list of the 50 nearest locations appears, including
the distance and bearing to each.
3. Touch the marine service item you want to navigate to.
4. Touch Go To, Route To, or Guide To to set the selected marine
service as a navigation destination. See page 13 for details
about navigating to a destination.
Searching for Waypoints
2. Touch the waypoint you want to navigate to.
3. Touch Navigate To to set the selected waypoint as a navigation
destination. See page 13 for information about navigating to a
destination.
Searching for Saved Routes
1. From the Home screen, touch Where To? > Routes.
2. Touch the saved route you want to navigate.
3. Touch Navigate To to navigate the selected route, and choose
how you want to navigate to it. See page 16 for information
about navigating routes.
• Forward—Navigate the route from the start point to the end
point.
• Backward—Navigate the route in reverse, from the end
point to the start point.
• Offset—Navigate a course that is parallel to the route and a
specified distance from the route. First choose the direction
and side of the offset, then specify the offset distance from
the route.
Note: You must create waypoints before you can search for and
navigate to them.
1. From the Home screen, touch Where To? > Waypoints. A list
of saved waypoints appears, sorted by distance, including the
distance and bearing to each.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
19
Marine Mode: Where To?
Searching for Saved Tracks
1. From the Home screen, touch Where To? > Tracks.
2. Touch the saved track you want to navigate.
3. Touch Follow Track to navigate the selected saved track. See
page 22 for more information about tracks.
Searching by Name
Use the Search by Name menu to search all marine services,
waypoints, saved routes, and saved tracks.
1. From the Home screen, touch Where To? > Search by Name.
2. Use the on-screen keyboard to type the name or part of the
name of the marine service, the waypoint, the saved route, or
the saved track you want to find, and touch Done.
20
3. A list of results appears. Touch the item you want to navigate to.
Each entry is marked by an icon to help identify which category
it belongs to:
—marine service icon
•
•
—default waypoint icon. This icon can be changed using
the waypoint properties (page 22).
•
—saved route icon
•
—saved track icon
4. Touch Navigate To or Follow Track to begin navigation. See
page 13 for information about navigating to a destination. See
page 22 for more information about tracks.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Using Waypoints and Tracks
Marine Mode: Using Waypoints
and Tracks
Create waypoints in locations that you want to return to, such
as your marina or a good fishing spot. You can store up to 1,500
marine waypoints with a user-defined name, symbol, depth, and
water temperature for each waypoint.
A track is a recording of your path. The track currently being
recorded is the active track. You can save your active track.
Using Man Overboard (MOB) Waypoints
Use a Man Overboard (MOB) waypoint to both create a waypoint
with an international MOB symbol ( ) and immediately begin
navigating to the MOB waypoint with a direct course (Go To).
To mark an MOB waypoint from the Home screen:
1. Touch Man Overboard. This immediately marks your current
position as an MOB waypoint.
2. Touch Yes to begin navigating to the MOB waypoint.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
To mark an MOB waypoint from any other screen:
1. Touch Mark in the top-left corner of any screen except the
Home screen. This immediately marks your current position as
a waypoint.
2. Touch Man Overboard. This designates the waypoint as an
MOB waypoint and begins navigation automatically.
Marking a Waypoint at Your Current
Location
1. Touch Mark on any screen. This marks your current location as
a waypoint with an automatically generated name.
2. Choose from the following options:
• Edit Waypoint—designates a specific name, a symbol, a
water depth, a water temperature, or a position.
• Delete—deletes the waypoint.
• Man Overboard—designates the current location as a Man
Overboard (MOB) waypoint.
• Back—returns to the previous screen.
21
Marine Mode: Using Waypoints and Tracks
Creating a Waypoint from the Navigation
Chart
1. From the Home screen, touch Charts > Navigation Chart.
2. Touch the location you want to designate as a waypoint. A
 pointer indicates the location.
3. Touch Create Waypoint.
Editing Waypoint Details
1. From the Home screen, touch Information > User Data >
Waypoints List to display the list of all waypoints, or touch a
waypoint on the Navigation chart.
2. Touch the name of the waypoint you want to edit.
3. Touch Edit Waypoint.
4. Touch the waypoint attribute you want to change.
5. Enter the new name, the symbol, the value, or the comment.
Changing the Position of a Waypoint
1. From the Home screen, touch Information > User Data
> Waypoints to display the list of all waypoints, or touch a
waypoint on the Navigation chart.
2. Touch the name of the waypoint you want to move.
3. Touch Edit Waypoint > Position.
4. Touch Use Chart or Enter Coordinates.
22
5. If entering coordinates, use the on-screen keyboard to enter the
new coordinates for the waypoint. If using the chart, touch the
new location and then touch Move Waypoint.
Deleting a Waypoint or MOB
1. From the Home screen, touch Information > User Data >
Waypoints List.
2. Touch the name of the waypoint or the MOB you want to delete.
3. Touch Delete and then touch OK to confirm that you want to
delete the waypoint.
Using Tracks
A trailing line on the chart indicates your active track. The active
track holds 10,000 track points. You can specify whether the active
track stops at 10,000 track points or overwrites the earliest points
(page 52).
To toggle the display of tracks on or off, from the Navigation chart,
touch Menu > Waypoints and Tracks > Tracks.
To disable the recording of tracks, from the Home screen, touch
Information > User Data > Tracks > Active Track Options >
Record Mode > Off.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Using Waypoints and Tracks
Saving the Active Track
You can save up to 20 tracks, with up to 700 points per saved track.
1. From the Home screen, touch Information > User Data >
Tracks > Save Active Track.
2. Either touch the time the current track began recording, or touch
Entire Log.
Clearing the Active Track
From the Home screen, touch Information > User Data > Tracks
> Clear Active Track > OK. The track memory is cleared and the
current track continues to be recorded.
Following the Active Track
1. From the Home screen, touch Information > User Data >
Tracks > Follow Active Track.
2. Either touch the time the current track began recording, or touch
Entire Log.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Navigating a Saved Track
1. From the Home screen, touch Where To? > Tracks.
2. Touch the name of the saved track you want to navigate.
3. Touch Follow Track.
4. Touch Forward or Backward to follow the track in the direction
you prefer.
Note: You can also navigate a saved track from the saved tracks
list (Information > User Data > Tracks > Saved Tracks).
Editing or Deleting a Saved Track
1. From the Home screen, touch Information > User Data >
Tracks > Saved Tracks.
2. Touch the track you want to edit or delete.
3. Touch Edit Track
• Name—change the name of the saved track.
• Track Color—change the color of the saved track
• Save Route—save the saved track as a saved route.
• Delete—delete the saved track.
23
Marine Mode: Using the Dashboard
Marine Mode: Using the Dashboard
Use the Dashboard to view important data such as navigation and
trip information on one screen, without using the chart screens.
Course to
Steer
Current heading
Corrected
course
Using the Compass Screen
From the Home screen, touch Dashboard > Compass to view the
Compass screen.
Following a Direct Course or a Route Using the
Compass Screen
After you set a course using Go To, or create a route using
Route To, you can use the Compass screen to follow the course or
route.
You can view your current heading and the corrected course on the
Compass screen. When you are off course, the distance between
your current heading and the corrected course is called the Course
to Steer, and is shaded orange on the compass.
Following a Direct Course on the
Compass Screen
To follow a direct course on the Compass screen:
1. After you set a course, from the Home screen, touch
Dashboard > Compass.
2. Follow the orange corrected-course pointer and steer off course
to avoid land, shallow water, and other obstacles on the water.
3. When you are off course, turn toward the orange correctedcourse pointer to reduce the shaded orange Course to Steer
and continue to the next turn in the route or to your destination.
 CAUTION
Just as on the Navigation chart, a direct course and a corrected
course may pass over land or shallow water. Use visual sightings
and steer to avoid land, shallow water, and other dangerous objects.
24
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Using the Dashboard
Using the Numbers Screen
To view important navigation numbers, such as heading and GPS
speed, from the Home screen, touch Dashboard > Numbers. For
more information on configuring the Numbers screen, see page 52.
Using the Trip Screen
The Trip screen provides helpful statistics about your trip.
To view the Trip screen, from the Home screen, touch Dashboard
> Trip.
Resetting Trip Screen Information
1. From the Trip screen, touch Menu.
2. Touch an item to reset that category of information on the Trip
screen, or touch Reset All.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
25
Marine Mode: Viewing Almanac Data
Marine Mode: Viewing Almanac Data
Use the Information screen to access almanac data about tides and
currents, as well as sun and moon (celestial) data.
You can also select tide, current, and celestial information for a
specific station directly from the Navigation chart. Touch near the
specific station. When the pointer icon is near the station, touch
Information and then touch Tides, Currents, or Celestial.
Viewing Tide Station Information
To view tide information from the Home screen, touch
Information > Tides. Information for the most-recently viewed
tide station is shown.
Tide station
Local time
Tide level at
local time
The Tide Station Graph
26
• Touch any point on the tide graph to view the tide level at a
different time. You can also drag your finger along the graph to
scroll.
• Touch Nearby Stations to view other tide stations close to your
position.
• Touch Change Date > Manual to view tide information for a
different date.
• Touch Show Report to view the Tide Report for the selected
station.
Viewing Current Information
To view current information from the Home screen, touch
Information > Currents. Information for the most-recently
viewed current station is shown.
• Touch any point on the tide graph to view the current activity at
a different time. You can also drag your finger along the graph
to scroll.
• Touch Nearby Stations to view other current stations close to
your present location.
• Touch Change Date > Manual to view current information for
a different date.
• Touch Show Report to view the Current Report for the selected
station.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Viewing Almanac Data
Viewing Celestial Information
You can view celestial almanac data for your present location. You
can view information about sunrise, sunset, moonrise, moonset, the
moon phase, and the approximate sky view location of the sun and
moon.
To view celestial information from the Home screen, touch
Information > Celestial.
• Touch Change Date > Manual to view information for a
different date.
• Touch
and
to view celestial information for a
different time on that date.
• Touch Show Moon Phase to view the moon phase at the
specified date and time. After touching Show Moon Phase,
touch Show Skyview to return to the celestial sky view.
• Touch Next Day or Previous Day to view celestial information
for a different day.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
27
Marine Mode: Managing User Data
Marine Mode: Managing User Data
To view and manage marine user data from the Home screen, touch
Information > User Data.
Waypoints List—display a list of all saved waypoints.
Routes—display a list of saved routes.
Tracks—display a list of saved tracks.
Data Transfer—transfer waypoints, routes, and tracks to and
from an SD card.
• Clear User Data—erase all user waypoints, routes, and tracks.
NOTE: User data (waypoints, routes, and tracks) is not shared
between marine mode and automotive mode.
•
•
•
•
Transferring Marine Data (Waypoints,
Routes, Tracks) to or from an SD Card
1. Insert an SD card into your device (see page 4).
2. From the Home screen, touch Information > User Data >
Data Transfer.
28
3. Select an option:
• Save To Card—save waypoints, routes, and tracks to the
SD card.
• Merge From Card—transfer data from the SD card to the
unit and combine it with existing user data.
• Replace From Card—overwrite items on your device.
• Copy Built-In Map—copy the pre-loaded basemap on the
device to an SD card for use with compatible Garmin PC
software products.
Backing Up Marine Data to a Computer
1. Insert an SD card into your device (page 4).
2. From the Home screen, touch Information > User Data >
Data Transfer > Save to Card. A list of user-created data files
appears.
3. Create a new data file on the card if you have not created one
previously. Touch Add New File and enter a file name.
4. Remove the SD card from the device and insert it into an SD
card reader that is attached to a computer.
5. From Windows® Explorer, open the Garmin\UserData folder on
the SD card.
6. Copy the <filename>.ADM file on the card and paste it to any
location on the computer.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Managing User Data
Restoring Backup Marine Data to your Device
1. Copy the <filename>.ADM file from your computer to an SD
card in a folder named Garmin\UserData.
2. Insert the SD card into your device.
3. From the Home screen on your device, touch Information >
User Data > Data Transfer > Replace From Card.
4. Touch the name of the data file you want to restore.
Copying or Merging MapSource® Marine
Data to the GPSMAP 620 or GPSMAP 640
Using an SD card:
1. Insert the SD card into your GPSMAP 620 or GPSMAP 640
device. The unit places a file on the card that provides
information to MapSource to format data. This only needs to be
done the first time you copy or merge MapSource data to your
device from a specific SD card.
2. Check your MapSource version on your PC by clicking Help >
About MapSource. If the version is older than 6.12.2, update to
the most-current version by clicking Help > Check for Software
Updates or check the Garmin Web site at www.garmin.com.
3. Insert the SD card into an SD card reader that is attached to the
PC.
4. From MapSource, click on Transfer > Send to Device.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
5. From the Send to Device window, select the drive for the
SD card reader, and select the types of data you want to copy to
your device.
6. Click Send. MapSource transfers a file named USERDATA.adm
to the SD card.
7. Insert the SD card into your device.
8. From the Home screen on your device, touch Information >
User Data > Data Transfer.
9. Touch Replace From Card or Merge From Card to copy or
merge the data into your device.
Connecting the device directly to the PC:
1. Power on the unit in marine mode, or switch to marine mode.
2. Connect the device to your computer using a mini-USB cable.
3. From MapSource, click on Transfer > Send to Device.
4. From the Send to Device window, select the GPSMAP 620 or
GPSMAP 640.
5. Click Send.
29
Marine Mode: Managing Information From Other Vessels
Marine Mode: Managing Information
from Other Vessels
AIS vessel
Use the Information screen to view and manage information about
other boats.
Dangerous
target
Note: To view information about other boats, your unit must be
connected to an external Automatic Identification System (AIS) or
Digital Selective Calling (DSC) device.
Activated
AIS target
Viewing AIS Information
The Automatic Identification System (AIS) enables you to identify
and track other vessels.
About AIS
AIS alerts you to area traffic. When connected to an external AIS
device, the chartplotter can show some AIS information about other
vessels that are within range, that are equipped with a transponder,
and that are actively transmitting AIS information. The information
reported for each vessel includes the Maritime Mobile Service
Identity (MMSI), the location, the GPS speed, the GPS heading,
the time that has elapsed since the last position of the vessel
was reported, the nearest approach, and the time to the nearest
approach.
30
Lost target
Dangerous
target is lost
AIS Targeting on the Navigation Chart
AIS Targeting Symbols
Symbol
Description
AIS vessel. The vessel is reporting AIS information. The
direction in which the triangle is pointing indicates the
direction in which the AIS vessel is moving.
Target is selected.
AIS Target is activated. The target appears larger on the
chart. A green line attached to the target indicates the
heading of the target. The MMSI, speed, and direction of the
vessel appear beneath the target, if the details setting is set
to Show (page 32). If the AIS transmission from the vessel is
lost, a message banner appears.
Target is lost. A green X indicates that the AIS transmission
from the vessel is lost, and the chartplotter displays a
message banner asking whether the vessel should continue
to be tracked. If you discontinue vessel tracking, the lost
target symbol disappears from the chart or the 3D chart view.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Managing Information From Other Vessels
Dangerous target in range. The target flashes while an alarm
sounds and a message banner appears. After the alarm is
acknowledged, a solid red triangle with a red line attached
to it indicates the location and the heading of the target. If
the AIS alarm is set to Off, the target flashes, but the audible
alarm does not sound and the alarm banner does not appear.
If the AIS transmission from the vessel is lost, a message
banner appears.
Dangerous target is lost. A red X indicates that the AIS
transmission from the vessel is lost, and the chartplotter
displays a message banner asking whether the vessel should
continue to be tracked. If you discontinue vessel tracking, the
lost dangerous target symbol disappears from the chart or
the 3D chart view.
The location of this symbol indicates the closest point of
approach to a dangerous target, and the numbers near the
symbol indicate the time to the closest point of approach to
that target.
Heading and Projected Course of Activated AIS Targets
When heading and course-over-ground information are provided by
an activated AIS target, the heading of the target appears on a chart
as a solid line attached to the AIS target symbol. A heading line
does not appear on a 3D chart view.
The projected course of an activated AIS target appears as a dashed
line on a chart or a 3D chart view. The length of the projected
course line is based on the value of the projected heading setting
(page 33). If an activated AIS target is not transmitting speed
GPSMAP 620 and GPSMAP 640 Owner’s Manual
information, or if the vessel is not moving, a projected course line
does not appear. Changes in the speed, the course over ground, or
the rate-of-turn information transmitted by the vessel can impact
the calculation of the projected course line.
When course-over-ground, heading, and rate-of-turn information
are provided by an activated AIS target, the projected course of the
target is calculated based on the course-over-ground and the rateof-turn information. The direction in which the target is turning,
which is also based on the rate-of-turn information, is indicated by
the direction of the barb at the end of the heading line. The length
of the barb does not change.
Projected course
Activated
AIS target
Barb
Heading line
Target with Projected Course, Heading
and Direction of Turn
31
Marine Mode: Managing Information From Other Vessels
When course over ground and heading information are provided by
an activated AIS target but rate of turn information is not provided,
the projected course of the target is calculated based on the course
over ground information.
Projected course
Activated
AIS target
Heading line
Target with Projected Course and Heading
Turning Off AIS Reception
AIS signal reception is turned on by default.
From the Home screen, select Configure > Other Vessels >
AIS > Off.
All AIS functionality on all charts and on all 3D chart views
is disabled. This includes AIS vessel targeting and tracking,
collision alarms that result from AIS vessel targeting and
tracking, and information about AIS vessels.
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Showing AIS Vessels on a Chart or on a 3D Chart View
AIS requires the use of an external AIS device and active
transponder signals from other vessels.
You can configure how other vessels appear on a chart or on a 3D
chart view. The display range configured for one chart or one 3D
chart view is applied only to that chart or to that 3D chart view. The
details, projected heading, and trails settings configured for one
chart or one 3D chart view are applied to all charts and to all 3D
chart views.
Note: The Mariner’s Eye 3D chart is available if you use a
BlueChart g2 Vision SD card. The Fishing chart is available if you
use a BlueChart g2 Vision SD card or a BlueChart g2 SD card, or if
your built-in map supports Fishing charts.
1. From the Home screen, select Charts.
2. Select Navigation Chart, Fishing Chart, Perspective 3D, or
Mariner’s Eye 3D.
3. Select Menu > Other Vessels > AIS Display Setup.
4. Complete an action:
• Select AIS Display Range to indicate the distance from your
location within which AIS vessels appear. Select a distance
or select Show All.
• Select Details > Show to show details about AIS-activated
vessels.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Managing Information From Other Vessels
• Select Projected Heading, enter the projected heading time
for AIS-activated vessels, and select Done.
• Select Trails to show the tracks of AIS vessels, and select
the length of the track that appears using a trail.
Activating a Target for an AIS Vessel
1. From the Home screen, select Charts.
2. Select Navigation Chart, Fishing Chart, Perspective 3D, or
Mariner’s Eye 3D.
3. Touch an AIS vessel.
4. Select AIS Vessel > Activate Target.
Viewing Information about a Targeted AIS Vessel
You can view the AIS signal status, MMSI, GPS speed, GPS
heading, and other information that is reported about a targeted AIS
vessel.
1. From the Home screen, select Charts.
2. Select Navigation Chart, Fishing Chart, Perspective 3D, or
Mariner’s Eye 3D.
3. Touch an AIS vessel.
4. Select AIS Vessel.
Deactivating a Target for an AIS Vessel
1. From the Home screen, select Charts.
2. Select Navigation Chart, Fishing Chart, Perspective 3D, or
Mariner’s Eye 3D.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
3. Touch the AIS vessel.
4. Select AIS Vessel > Deactivate Target.
Setting the AIS Alarm
The AIS alarm is used for collision avoidance, and can be
customized. All AIS alarm settings are applied to all charts and to
all 3D chart views.
1. From the Home screen, select Configure > Other Vessels >
AIS Alarm > On.
A message banner appears and an alarm sounds when an AISactivated vessel enters the safe-zone ring around your boat.
The object is also labeled as dangerous on the screen. The Off
setting disables the message banner and the audible alarm, but
the object is still labeled as dangerous on the screen.
2. Select Range to set the measured radius of the safe-zone ring
to a specified distance from 500 ft. to 2.0 nm (or from 150 m to
3.0 km, or from 500 ft. to 2.0 mi.).
3. Select a distance.
4. Select Time To to sound an alarm if AIS determines that a
target will intersect the safe zone within the defined time interval
(ranging from 1 to 24 minutes).
5. Select a time.
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Marine Mode: Managing Information From Other Vessels
Viewing a List of AIS Targets
Note: The Mariner’s Eye 3D chart is available if you use a
BlueChart g2 Vision SD card. The Fishing chart is available if you
use a BlueChart g2 Vision SD card or a BlueChart g2 SD card, or if
your built-in map supports Fishing charts.
1. From the Home screen, select Charts.
2. Select Navigation Chart, Fishing Chart, Perspective 3D, or
Mariner’s Eye 3D.
3. Select Menu > Other Vessels > AIS List.
Viewing DSC Information
The DSC list is a log of the most-recent DSC calls and other DSC
contacts you have entered. The DSC list shows the most-recent
call from a boat. If a second call is received from the same boat, it
replaces the first call in the call list.
Viewing the DSC List
Sorting the DSC List
By default, the DSC list is sorted by name. To change the sorting of
the DSC list, touch Menu, then choose a category to sort by:
• Sort by Name—(default) show an alphanumerical list of DSC
calls and reports, sorted by name.
• Sort by Type—separate distress calls from position reports, and
show the most-recent calls or reports, sorted chronologically.
• Sort by MMSI—show an alphanumerical list of calls and
reports, sorted by MMSI number.
• Sort by Time—show the most-recent DSC calls and reports
received, sorted and listed chronologically by time and date.
Calls and reports with identical time and date information show
the same information in the list.
• Sort by Distance—show an alphanumerical list of calls and
reports, sorted by distance from your present location.
Your chartplotter must be connected to a VHF radio that supports
DSC in order to view the DSC list.
From the Home screen, touch Information > Other Vessels >
DSC List to view a list of all received DSC distress calls and
position reports.
34
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Managing Information From Other Vessels
Using DSC Information
To edit or interact with DSC distress calls and position reports,
select a distress call or a position report from the DSC List.
• Edit—add a name to the DSC call or report to help better
identify the vessel by MMSI number.
• Navigate To—set the selected DSC call or report as a
navigation destination. See page 13 for information about
navigating to a destination.
• Create Waypoint—mark a waypoint at the position of the
selected DSC call or report. See page 21 for more information
about waypoints.
• Clear Report—delete the selected DSC call or report.
Adding a DSC Contact
You can add a vessel to your DSC list as a DSC contact.
Deleting All Received DSC Information
From the Home screen, touch Information > Other Vessels >
DSC List > Menu > Delete All to delete the list of all received
DSC distress calls and position reports.
Incoming Distress Calls
If your Garmin chartplotter and VHF radio are connected using
NMEA 0183, your chartplotter alerts you when your VHF radio
receives a DSC distress call. If position information was sent with
the distress call, that information is also available and recorded
with the call.
Navigating to a Vessel in Distress
The symbol designates a distress call in the DSC list and marks
the position of a vessel on the Navigation chart at the time the
distress call is sent.
1. From the Home screen, select Information > Other Vessels >
DSC List > Add Contact.
2. Enter the Maritime Mobile Service Identity (MMSI) of the vessel.
3. Select Done.
4. Enter the name of the vessel.
5. Select Done.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
35
Marine Mode: Managing Information From Other Vessels
Position Tracking
When you connect your Garmin chartplotter to a VHF radio using
NMEA 0183, you can track vessels that send position reports.
Every position-report call received is logged in the DSC list.
Viewing a Position Report
1. From the Home screen, select Information > Other Vessels >
DSC List.
2. Select a position-report call.
3. Select
or
to switch between details of the
position report and a Navigation chart marking the location.
Navigating to a Tracked Vessel
1. From the Home screen, select Information > Other Vessels >
DSC List.
2. Select a position-report call.
3. Select Navigate To.
4. Select Go To or Route To.
Creating a Waypoint at the Position of a Tracked Vessel
1. From the Home screen, select Information > Other Vessels >
DSC List.
2. Select a position-report call.
3. Select Create Waypoint.
36
Editing Information in a Position Report
1. From the Home screen, select Information > Other Vessels >
DSC List.
2. Select a position-report call.
3. Select Edit.
4. Complete an action:
• Select Name. Enter the name of the vessel. Select Done.
• Select Symbol. Select a new symbol. Select Done.
NOTE: The symbol can not be changed if the position-report
call is a distress call.
• Select Comment. Enter the comment. Select Done.
• Select Trail > Show to show a trail line for the vessel, if your
radio is tracking the position of the vessel.
• Select Trail Line. Select a color for the trail line.
Deleting a Position-Report Call
1. From the Home screen, select Information > Other Vessels >
DSC List.
2. Select a position-report call.
3. Select Clear Report.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Managing Information From Other Vessels
Vessel Trails on the Navigation Chart
You can view trails for all tracked vessels on the Navigation chart,
the Fishing chart, and the Mariner’s Eye 3D chart view. By default,
a black dot appears for each previously reported position of a
tracked vessel, and a Blue Flag symbol indicates the last reported
position of the vessel. A black line indicating the path of the vessel
also appears.
Last reported
vessel position
Showing and Setting the Duration of Trails for All Tracked
Vessels
1. From the Home screen, select Charts.
2. Select Navigation Chart, Fishing Chart, Perspective 3D, or
Mariner’s Eye 3D.
3. Select Menu > Other Vessels > DSC Trails.
4. Select the number of hours to show tracked vessels on the
chart or 3D chart view.
For example, if you select 4 Hours, all trail points that are less
than four hours old appear for all tracked vessels.
Showing the Trail Line for a Tracked Vessel
Previously reported
vessel positions
Vessel Trail on the Navigation Chart
You must enable the DSC Trails setting in order to view trails for
tracked vessels.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
You can show the trail line for a specific tracked vessel.
1. From the Home screen, select Charts.
2. Select Navigation Chart, Fishing Chart, Perspective 3D, or
Mariner’s Eye 3D.
3. Select Menu > Other Vessels > DSC List.
4. Select a vessel.
5. Select Edit > Trail > Show.
37
Marine Mode: Advanced Configuration
Marine Mode: Advanced
Configuration
Use the Configure menu to configure general unit settings.
Use the Menu screen on various chart screens to configure chartspecific information.
Configuring System Settings
From the Home screen, touch Configure > System.
Simulator—turn Simulator Mode On or Off.
Touch Setup to set Simulator options.
• Speed—enter the speed of your boat in simulator mode, and
touch Done.
• Track Control—touch Auto Track to allow the chartplotter to
set the heading automatically, or touch User Track to set the
heading manually.
• Set Position—select the simulated position of your boat, and
touch Select.
• Set Time—enter the simulated time, and touch Done.
• Set Date—enter the simulated date, touch Done.
Language—touch the on-screen language.
38
Keyboard Layout—select QWERTY for a layout similar to a
computer keyboard, or select ABCDE for an alphabetical layout.
Beeper/Display—set beeper and display options.
• Beeper—touch Beeper to set when the unit makes audible
sounds. The settings are Off, Alarms Only, and On (Key and
Alarms) (default).
• Display—touch Display to open the display menu.
◦◦ Backlight Slider—adjust the intensity of the backlight.
◦◦ Color Mode—touch Color Mode to select Day Colors
or Night Colors, or touch Auto to allow the device to
automatically adjust the colors.
◦◦ Volume—adjust the volume levels.
• Screenshot Capture—toggle the screenshot capture feature on
and off. With the screenshot capture on, touch and hold Home
on any screen to take a screenshot. The screenshot is saved to an
inserted SD card.
• Audio Out—set to High-Z for best sound quality if your stereo
has a high-impedance input. If you are experiencing audio
distortion, try toggling this setting between Low-Z and High-Z
to improve audio performance.
• Calibrate Touch Screen—touch the dots as they appear to
calibrate the touchscreen.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Advanced Configuration
GPS—view GPS information and change GPS settings.
• Skyview—view the GPS satellite constellation.
• WAAS/EGNOS—toggle WAAS (in North America) or
EGNOS (in Europe) on or off. WAAS/EGNOS can provide
more-accurate GPS position information; however, when using
WAAS/EGNOS, the device takes longer to acquire satellites.
• Speed Filter—the speed filter averages the speed of your boat
over a short period of time for smoother speed values. On keeps
the speed filter on continuously. Auto allows the unit to provide
the optimal performance as required by your situation, such as
traveling at a constant speed or frequently changing speeds.
System Information—view system information, restore factory
settings, view the event log, and save system information.
• Factory Settings—erase all user settings and return the device
to factory default settings.
• Event Log—view a list of system events. Select an event to
view additional information.
• Save to Card—save system information to a memory card as a
troubleshooting tool. A Garmin Product Support representative
may ask you to use this information to retrieve data about the
network.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Speed Sources—specify if the calculated wind speed data comes
from a Water Speed sensor, if it is based on the GPS Speed, or
whether the chartplotter selects a speed data source automatically.
Water speed is the speed reading from a water-speed sensor, and
GPS speed is calculated from your GPS position.
Usage Mode—change to automotive mode.
Changing Units of Measure
From the Home screen, touch Configure > Units.
System Units—specify system-wide units of measure: Statute
(mh, ft, ºF), Metric (kh, m, ºC), Nautical (kt, ft, ºF), or Custom.
Touch Custom to individually define units of measure for:
• Depth—set the units of measure for depth to Feet, Fathoms, or
Meters.
• Temperature—set units of measure for temperature to
Fahrenheit (ºF) or Celsius (ºC).
• Distance—set the units of measure for distance readings (Miles,
Kilometers, or Nautical Miles).
• Speed—set the units of measure for Vessel Speed and for Wind
Speed readings (Miles Per Hour, Kilometers Per Hour, or
Knots).
39
Marine Mode: Advanced Configuration
• Elevation—set the units of measure for elevation readings
(Feet or Meters).
• Atmospheric Pressure—set the units of measure for
atmospheric (Millibars or Inches of Mercury) pressure
readings.
Heading—set the reference used in calculating heading
information.
• Auto Mag Var (Automatic Magnetic Variation)—automatically
set the magnetic declination for your location.
• True—set true north as the heading reference.
• Grid—set grid north as the heading reference (000º).
• User Mag Var—set a custom magnetic variation value.
Position Format—select the coordinate system in which a given
location reading appears. Do not change the position format unless
you are using a map or chart that specifies a different position
format.
Map Datum—select the coordinate system in which the map is
structured. The default setting is WGS 84. Do not change the map
datum unless you are using a map or chart that specifies a different
position format.
40
Time—change time settings.
• Time Format—set the time format (12 hour, 24 hour, or UTC)
for time readings.
• Time Zone—set the time zone displayed for time readings.
Configuring Communications Settings
From the Home screen, touch Configure > Communications.
NMEA Port 1 or NMEA Port 2—select the input/output format
(Garmin Data Transfer, NMEA Std. or NMEA High Speed)
for each port to use when connecting your unit to external NMEA
devices, to a computer, or to other Garmin devices.
• Garmin Data Transfer—a proprietary data transfer protocol
that is used to interface with Garmin computer programs.
• NMEA Std.—supports the input or output of standard NMEA
0183 data and DSC data for the DPT, MTW, and VHW
sentences.
• NMEA High Speed—supports the input or output of high
speed NMEA 0183 data for most AIS receivers.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Advanced Configuration
NMEA Setup—enable or disable NMEA 0183 output for route
sentences and system sentences, and adjust Garmin NMEA
settings.
• Posn. Precision—adjust the number of digits (Two Digits,
Three Digits, or Four Digits) to the right of the decimal point
for transmission of NMEA output.
• Waypoint IDs—select how the unit outputs waypoint identifiers
(Names or Numbers).
• Diagnostics—a tool used by installers to verify that
NMEA 0183 data is being sent across the system.
Enabling or Disabling NMEA 0183 Output
Sentences
1. From the Home screen, touch Configure > Communications >
NMEA Setup.
2. Touch a setting (Route, System, or Garmin).
3. Touch the NMEA output sentence.
4. Touch Off to disable, or touch On to enable, the NMEA 0183
output sentence.
Configuring Alarm Settings
You can configure your device to alert you when certain events
occur.
Setting Navigation Alarms
From the Home screen, touch Configure > Alarms > Navigation.
Arrival—set an alarm to sound when you arrive at a predetermined
point.
• Type—set the alarm to sound either at the Destination Only
or at the Destination and Turns (when navigating a route with
turns).
• Activation—set the criteria for the alarm. The Distance setting
sounds the alarm when you are a specified distance from the
point. The Time setting sounds the alarm when you are a
specified time from the point.
• Change Distance/Change Time—specify the distance or time
from the point at which the alarm will sound.
Anchor Drag—set an alarm to sound when you drift a specified
distance from your current location.
Off Course—set an alarm to sound when you steer a specified
distance from your current course.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
41
Marine Mode: Advanced Configuration
Setting System Alarms
Configuring My Boat
Clock—set an alarm using the system (GPS) clock. The unit must
be on for the clock alarm to work.
Keel Offset—offset the surface reading for the depth of a keel,
making it possible to measure depth from the bottom of the keel
instead of from the transducer location. Enter a positive number to
offset for a keel. Enter a negative number to compensate for a large
vessel that may draw several feet of water.
From the Home screen, touch Configure > Alarms > System.
GPS Accuracy—set an alarm to sound when the GPS location
accuracy falls outside the specified value.
Setting Sonar Alarms
From the Home screen, touch Configure > Alarms > Sonar.
Shallow Water/Deep Water—set an alarm to sound when the
depth according to a NMEA 0183 water-depth sensor is less than or
greater than the specified value.
Water Temp—set an alarm to sound when temperature received
via a NMEA 0183 sensor reports a temperature that is 2°F (1.1°C)
above or below the specified temperature.
42
From the Home screen, touch Configure > My Boat.
To adjust the Keel Offset:
1. From the Home screen, touch Configure > My Boat > Keel
Offset.
2. Use the on-screen keyboard to specify the offset.
• If you are measuring down to the keel (transducer installed
at the water line), enter a (+) positive number.
• If you are measuring up to the water line (transducer
installed on the keel), enter a (-) negative number.
3. Touch Done to accept the number.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Advanced Configuration
Configuring Other Vessels
Configuring Navigation Settings
NOTE: To configure AIS or DSC information for other boats, your
unit must be connected to an external AIS or DSC device.
Route Labels—for saved routes, this determines whether route
turns are indicated by number (Turn 1, Turn 2, and so on), by
waypoint name, or whether the description of turns is hidden.
From the Home screen, touch Configure > Other Vessels.
AIS—turn AIS on or off. AIS alerts you to area traffic by providing
the boat IDs, the position, the course, and the speed for boats that
are within range and equipped with a transponder.
DSC—turn DSC on or off.
AIS Alarm (AIS only)—a message banner appears and an alarm
sounds when an AIS-activated vessel enters the safe-zone ring
around your boat. The object is also labeled as dangerous on the
screen. The Off setting disables the message banner and the audible
alarm, but the object is still labeled as dangerous on the screen.
• Range—change the measured radius of the Safe Zone ring to a
specified distance from 500 ft. to 2.0 nm (or 150 m to 3 km, or
500 ft. to 2.0 mi.).
• Time To—sounds an alarm if AIS determines that a target will
intersect the safe zone within the defined time interval (ranging
from 1 to 24 minutes).
Note: Additional AIS and DSC configuration options are
available from the Navigation chart options. See page 45.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
From the Home screen, touch Configure > Navigation.
Auto Guidance—Set the parameters the chartplotter uses when
calculating an Auto Guidance line.
 CAUTION
The Safe Depth and Safe Height settings influence how the
chartplotter calculates an Auto Guidance line. If an area has an
unknown water depth or an unknown obstacle height, the Auto
Guidance line is not calculated in that area. If an area at the
beginning or the end of an Auto Guidance line is shallower than the
safe water depth or lower than the safe obstacle height, the Auto
Guidance line is not calculated in that area. On the chart, the course
through those areas appears as a gray line. When your boat enters
one of those areas, a warning message appears.
• Safe Depth—set the minimum depth (using chart depth data)
allowed when calculating an auto-guidance path. A safe depth of
less than one meter is not allowed when using Auto Guidance.
• Safe Height—set the minimum height (using chart height data)
of a bridge that your boat can safely travel under.
43
Marine Mode: Advanced Configuration
• Shoreline Distance—set how close you want to travel near the
shore: Nearest, Near, Normal, Far, or Farthest. The Shoreline
Distance setting indicates how close to the shore you want the
Auto Guidance line to be placed. The Auto Guidance line may
move if you change this setting while navigating.
Setting the Distance from Shore
The available values for the Shoreline Distance setting (Nearest,
Near, Normal, Far, or Farthest) are relative, not absolute. To place
the Auto Guidance line the appropriate distance from shore, you
can assess the placement of the Auto Guidance line using one or
more familiar destinations that require navigation through a narrow
waterway.
1. Dock your boat or drop anchor.
2. From the Home screen, select Configure > Navigation > Auto
Guidance > Shoreline Distance > Normal.
3. From the Home screen, select Charts > Navigation Chart.
4. Select a destination that you have navigated to previously.
5. Select Navigate To > Guide To.
6. Review the placement of the Auto Guidance line. Determine
whether the line safely avoids known obstacles, and whether
the turns enable efficient travel.
7. Complete an action:
44
• If the placement of the Auto Guidance line is satisfactory,
select Menu > Stop Navigation. Proceed to step 11.
• If the Auto Guidance line is too close to known obstacles,
from the Home screen, select Configure > Navigation >
Auto Guidance > Shoreline Distance > Far.
• If the turns in the Auto Guidance line are too wide, from
the Home screen, select Configure > Navigation > Auto
Guidance > Shoreline Distance > Near.
8. If you selected Near or Far in step 7, review the placement
of the Auto Guidance line. Determine whether the line safely
avoids known obstacles, and whether the turns enable efficient
travel.
Auto Guidance maintains a wide clearance from obstacles in
open water, even if you set the Shoreline Distance setting to
Near or Nearest. As a result, the chartplotter may not reposition
the Auto Guidance line, unless the destination selected in step 3
requires navigation through a narrow waterway.
9. Complete an action:
• If the placement of the Auto Guidance line is satisfactory,
select Menu > Stop Navigation. Proceed to step 11.
• If the Auto Guidance line is too close to known obstacles,
from the Home screen, select Configure > Navigation >
Auto Guidance > Shoreline Distance > Farthest.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Advanced Configuration
• If the turns in the Auto Guidance line are too wide, from
the Home screen, select Configure > Navigation > Auto
Guidance > Shoreline Distance > Nearest.
10.If you selected Farthest or Nearest in step 9, review the
placement of the Auto Guidance line. Determine whether the
line safely avoids known obstacles, and whether the turns
enable efficient travel.
Auto Guidance maintains a wide clearance from obstacles in
open water, even if you set the Shoreline Distance setting to
Near or Nearest. As a result, the chartplotter may not reposition
the Auto Guidance line, unless the destination selected in step 4
requires navigation through a narrow waterway.
11.Repeat steps 1–10 at least once more, using a different
destination each time, until you are familiar with the functionality
of the Shoreline Distance setting.
Configuring Route Turn Transitions
You can set how much time, or how far, before a turn in a route that
you transition to the next leg. Raising this value can help improve
the accuracy of the autopilot when navigating a route or an Auto
Guidance line with many frequent turns, or at higher speeds. For
straighter routes or slower speeds, lowering this value can improve
autopilot accuracy.
2. Complete an action:
• Select Time > Turn Transition Time, and enter the time.
• Select Distance > Turn Transition Distance, and enter the
distance.
3. Select Done.
Configuring Navigation Chart Options
From the Navigation chart, touch Menu.
Waypoints and Tracks—access shortcuts to waypoint and track
information. For more information on waypoints and tracks,
see page 21.
Tracks—toggle tracks on or off.
Waypoints List—view a list of all saved waypoints.
New Waypoint—mark a new waypoint.
Active Tracks—change active track options, clear the active
track, follow the active track, or save the active track.
• Saved Tracks—view the saved tracks list.
• Tracks Display—show or hide tracks on the chart according to
color.
•
•
•
•
1. From the Home screen, select Configure > Navigation > Turn
Transition Activation.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
45
Marine Mode: Advanced Configuration
• Waypoint Display—select whether to show labels for
waypoints of a particular symbol with the waypoint name,
a comment, or a symbol only. You can also select to hide a
waypoint on charts by symbol. This allows the waypoints on the
map to be quickly limited to those most relevant to your current
activity.
Other Vessels—access AIS and DSC shortcuts, as well as chartspecific AIS display settings.
• AIS List—view the AIS list. See page 34.
• DSC List—view the DSC list. See page 34.
• AIS Display Setup—configure chart-specific AIS display
settings.
◦◦ AIS Display Range—on the navigation chart, specify the
distance from your boat within which AIS icons are visible.
◦◦ Projected Heading—specify the amount of time ahead of
an AIS target to project the heading of the AIS target.
◦◦ Details—toggle AIS details on the Navigation chart on or
off.
◦◦ Trails—show trails behind AIS icons on the Navigation
chart for a position history of other vessels. Specify the
amount of time behind each AIS icon you want to maintain
a trail.
46
◦◦ DSC Trails—select the number of hours to show tracked
vessels on the Navigation chart. For example, if you select
4 Hours, all trail points less than four hours old for tracked
vessels are displayed. The Navigation chart displays a black
line indicating the path of the vessel, a black dot for each
reported position, and a  Blue Flag symbol indicating
the last reported position. Touch Off to turn trails off for all
vessels.
• AIS Alarm—set the AIS alarm. See page 43.
Stop Navigation—stop active navigation.
Configuring Navigation Chart Setup and
Appearance
From the Navigation chart, touch Menu > Navigation Chart
Setup.
Photos—enable and configure BlueChart g2 Vision high-resolution
satellite imagery. See page 12.
Tides/Currents—toggle the tide station icons and current station
icons on or off.
Service Points—toggle the marine services icons on or off.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Advanced Configuration
Roses—indicate compass direction, true wind direction, or
apparent wind direction oriented to the heading of the boat.
True wind direction or apparent wind direction appears if the
chartplotter is connected to a compatible marine wind sensor.
True wind shows wind direction data based on the flow of air
experienced while on a stationary boat. Apparent wind shows wind
direction data based on the flow of air experienced while on a boat
in motion.
Touch None if you do not want a rose to appear on the chart.
Note: You must connect an optional NMEA 0183 wind sensor to
view the True Wind and Apparent Wind roses.
Data Bars—control how charting numbers appear on the screen.
Choose to show or hide the numbers by category. When set to
Auto, the overlay numbers appear only when that category is
active.
• Cruising: GPS speed and GPS heading.
◦◦ Data Bar Setup—specify the position of the data bar on the
Navigation chart, and specify the contents of the fields.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
• Navigation: GPS speed, distance to destination, arrival (time),
off course, bearing (to destination), and GPS heading. When
set to Auto, these numbers appear only when navigating to a
destination.
◦◦ Data Bar Setup—toggle the Route Leg data field (shows
additional route information) and specify how each
data field provides navigation information (by time or
by distance).
• Fishing: Depth, water temperature, and water speed are
available if an appropriate NMEA 0183 sensor is attached.
• Sailing: Water speed, wind speed, wind angle, and Wind
Velocity Made Good (VMG). Wind speed, angle and VMG
are only available when connected to an optional NMEA 0183
wind sensor. See page 49 for more information on how the
chartplotter displays Wind VMG and Waypoint VMG.
◦◦ Wind—choose the type of wind data used in the sailing data
fields (apparent or true).
47
Marine Mode: Advanced Configuration
• Compass Tape: Displays the current heading. An indicator
that shows the bearing to the desired course is displayed while
navigating.
When you are off course, the distance between your current
heading and the corrected course is called the Course to Steer,
and is shaded orange on the compass tape.
Bearing
indicator
Heading
indicator
Compass Tape – Off Course
Chart Appearance—customize the appearance of the Navigation
chart.
• Orientation—change the perspective of the map display:
◦◦ North Up—set the top of the map display to a north
heading.
◦◦ Head Up—set the top of the map display according to your
GPS heading. The heading line appears vertically on the
screen if it is shown. If the device is connected to a
NMEA 0183 heading sensor, the map remains oriented
according to GPS heading (course over ground), but the
vessel icon rotates according to magnetic heading from the
sensor.
◦◦ Course Up—set the map so the direction of navigation is
always up.
• Detail—adjust the amount of detail shown on the map.
• Heading Line—draw an extension from the bow of the boat in
the direction of travel.
◦◦ Off—turn off the heading line.
◦◦ Distance—set the distance to the end of the heading line.
◦◦ Time—set the amount of time until you reach the end of the
heading line.
Compass Tape – On Course
48
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Advanced Configuration
• World Map—toggle the world map (basemap) between a basic
world map and a full world map.
◦◦ The basic world map shows coastal outlines of the world,
with land indicated in yellow.
◦◦ The full world map shows the coastal outlines of the world
with the land covered in a low-resolution photo image.
• Spot Depths—turn on spot soundings and set a dangerous
depth.
• Safety Shading (with compatible BlueChart g2 Vision cards)—
areas with depths shallower than the specified value are shaded
in blue, while areas with depths greater than the specified value
are shaded in white. The contour is always drawn at, or deeper
than, the selected depth. Select Manual to enter the depth.
Select Auto to use the depth from the g2 Vision chart.
• Symbols—customize the symbols that appear on the Navigation
chart.
◦◦ Navaid Size—adjust the size of the symbols shown on the
map.
◦◦ Navaid Type—set the navaid symbol set: National Oceanic
and Atmospheric Administration (NOAA) or International
Association of Lighthouse Authorities (IALA).
GPSMAP 620 and GPSMAP 640 Owner’s Manual
◦◦ Land POIs—toggle Points of Interest (POI) icons shown on
land (this option is only available when using a BlueChart
g2 Vision SD card).
◦◦ Light Sectors—show the sector in which a navigational
light is visible. Select On to show light sectors at all times,
or select Auto to allow the chartplotter to automatically
filter out light sectors depending on the zoom level.
◦◦ Chart Borders—show what area the maps cover when
using a BlueChart g2 Vision data card.
Understanding How Wind VMG and Waypoint
VMG Are Displayed in the Data Bars
The chartplotter automatically switches between displaying Wind
Velocity Made Good (VMG) and Waypoint VMG in the data bars.
Waypoint VMG is displayed under the following conditions:
• The Route Leg data bar displays Waypoint VMG when you are
navigating a route or an Auto Guidance line.
• The Sailing data bar displays Waypoint VMG when you are
navigating a route or an Auto Guidance line, and you turn the
Route Leg data bar off.
49
Marine Mode: Advanced Configuration
Wind VMG is displayed under the following conditions:
• The Sailing data bar displays Wind VMG when you are not
navigating a route or an Auto Guidance line.
• The Sailing data bar displays Wind VMG when the Route Leg
data bar is on and you are navigating a route.
Configuring Perspective 3D Options and
Mariner’s Eye 3D Options
From the Perspective 3D screen or the Mariner’s Eye 3D screen,
touch Menu.
Waypoints and Tracks—provides access to waypoint and track
information shortcuts, as on the Navigation chart. See page 45.
Note: The Tracks Display configuration option is not available
on the Perspective 3D screen. You need a BlueChart g2 Vision SD
card to use this feature.
Other Vessels—provide access to AIS and DSC shortcuts, as well
as chart-specific AIS display settings, as on the Navigation chart.
See page 45.
Chart Appearance—customize the appearance of the Perspective
3D or Mariner’s Eye 3D screen.
• Style—(Mariner’s Eye 3D only) select how chart data is
displayed over 3D terrain.
• Hazard Colors—(Mariner’s Eye 3D only) turn hazard colors
on or off.
◦◦ On setting indicates shallow water and land with a color
scale. Blue indicates deep water, yellow is shallow water,
and red is very shallow water.
◦◦ Off setting shows the land as seen from the water.
• Range Rings—toggle the range rings on or off.
• Safe Depth—(Mariner’s Eye 3D only) adjust the depth at which
red indicates shallow water.
• Lane Width—adjust the width of the course line drawn when
navigating. This setting affects direct navigation (Go To) and
routes (Route To), but does not affect Auto Guidance (Guide
To).
Data Bars—control how charting numbers appear on the screen, as
on the Navigation chart. See page 46.
50
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Advanced Configuration
Fish Eye 3D Settings
From the Fish Eye 3D screen, touch Menu.
Roses—enable information roses around the boat icon, as on the
Navigation chart. See page 46.
View—change the viewpoint. Choose the direction you want the
camera to point. For example, if you touch Port, the view places
the camera to starboard, looking across the boat to port.
Data Bars—control how charting numbers appear on the screen,
as on the Navigation chart. See page 47. You can also turn the
compass tape on or off (page 48).
Tracks—toggle tracks on or off.
Chart Appearance—customize the appearance of the Fishing
chart.
Data Bars—control how charting numbers appear on the screen, as
on the Navigation chart. See page 47.
Fishing Chart Settings
From the Fishing chart, touch Menu.
Waypoint and Tracks—access shortcuts to waypoint and track
information, as on the Navigation chart. See page 45.
Other Vessels—access AIS and DSC shortcuts, as well as chartspecific AIS display settings, as on the Navigation chart. See
page 46.
• Orientation—changes the perspective of the map display, as on
the Navigation chart. See page 48.
• Detail—adjusts the amount of detail shown on the map.
• Heading Line—draws an extension from the bow of the boat in
the direction of travel, as on the Navigation chart. See page 48.
• Navaid Size—adjusts the size of the symbols shown on the
map.
• Navaid Type—sets the navaid symbol set (NOAA or IALA).
Navaids—toggle all navaids, such as lights and buoys, on or off.
Configuring Fishing Chart Setup and Appearance
From the Fishing chart, touch Menu > Fishing Chart Setup.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
51
Marine Mode: Advanced Configuration
Configuring the Active Track Options
From the Home screen, touch Information > User Data > Tracks
> Active Track Options.
Record Mode—select Off, Fill, or Wrap.
• Off—does not record a track log.
• Fill—records a track log until the track memory is full.
• Wrap—continuously records the track log, replacing the oldest
track data with new data.
Interval—define the frequency at which the track is recorded.
Recording more-frequent plots is more accurate, but fills the track
log faster.
• Interval—set whether the interval is determined by distance,
time, or resolution. (Touch Change to set the quantity.)
◦◦ Distance—record the track based on a distance between
points.
◦◦ Time—record the track based on a time interval.
◦◦ Resolution—record the track based on a variance from
your course. This setting is recommended for the most
efficient use of memory. The distance value (Change) is
the maximum error allowed from the true course before
recording a track point.
52
• Change—set the value of the interval.
Track Color—set the color of the track.
Configuring the Numbers Screen
From the Home screen, touch Dashboard > Numbers > Menu >
Configure.
1. Select the number of data fields you want to show on
the Numbers screen. The Numbers screen appears with
changeable data fields.
2. Touch the data field you want to change.
3. Touch the data type you want to appear in the selected data
field.
4. Repeat steps 3 and 4 until all the data fields contain the
information you want.
5. Touch Done.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Automotive Mode: Getting Started
Automotive Mode: Getting Started
Step 1: Mount Your GPSMAP 620 or
GPSMAP 640
1. Place the automotive dashboard mount on the dashboard of
your vehicle.
2. Snap the mounting bracket onto the automotive dashboard
mount arm, and place the GPSMAP 620 or GPSMAP 640 in the
mounting bracket (page 2).
3. Plug the speaker/vehicle power cable into a power outlet in your
vehicle. Your unit should turn on automatically, in automotive
mode, if it is plugged in and the vehicle is running.
Step 3: Acquire Satellites
Go outdoors to an open area, away from tall buildings and trees
and turn on your GPSMAP 620 or GPSMAP 640.
Acquiring satellite signals can take a few minutes. The
bars indicate satellite strength. When at least one of the bars is
green,your device has acquired satellite signals. Now you can
select a destination and navigate to it.
Step 4: Use Your Device
➊
➋
➎
Note: The GPSMAP 620 can be used in the automotive mode
only if optional City Navigator NT maps are purchased and loaded
onto the device.
If your device does not power on automatically, press and hold
until the device turns on. Follow the on-screen instructions. Press
and hold to turn off your device.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
➏
➐
Step 2: Configure Your Device
➌ ➍
➑
Automotive Mode: Menu Page
➊
➋
➌
➍
GPS satellite strength.
Usage mode. Touch this icon to change modes.
Battery status.
Local time. Touch to change time settings.
53
Automotive Mode: Getting Started
➎ Touch to find a destination.
➏ Touch to view the map.
➐ Touch to adjust the volume.
➑ Touch to use the tools such as Settings and Custom Routes.
Finding Your Destination
The Where To? menu provides several different categories for you
to use when searching for addresses, cities, and other locations. The
detailed maps loaded in your device contain millions of points of
interest, such as restaurants, hotels, and auto services.
1. Touch Where To?.
2. Select a category.
3. Select a subcategory.
4. Select a destination.
Tip: Touch
54
and
Adding a Stop
You can add a stop (called a Via Point) to your route. The
GPSMAP 620 or GPSMAP 640 gives you directions to the Via
Point and then to your final destination.
1. With a route active, touch Menu > Where To?.
2. Search for the extra stop.
3. Touch Go!.
4. Touch Add as Via Point to add this stop before your
destination. Touch Set as New Destination to make this your
final destination.
Taking a Detour
1. With a route active, touch Menu.
2. Touch Detour.
The GPSMAP 620 or GPSMAP 640 attempts to get you back on
your original route as quickly as possible. If the route you are
currently taking is the only reasonable option, the device might not
calculate a detour.
5. Touch Go!.
to see more choices.
Stopping the Route
1. With a route active, touch Menu.
2. Touch Stop.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Automotive Mode: Where to?
Automotive Mode: Where To?
The Where To? menu provides several different categories you
can use to search for locations. To learn how to perform a simple
search, see page 54.
Finding an Address
note: Depending on the version of the maps loaded on your
device, the button names can change and some steps could be
ordered differently.
1. Touch Where To? > Address.
2. Change the state, the country, or the province, if necessary.
3. Touch Spell City, enter the city/postal code, and touch Done.
Select the city/postal code in the list. (Not all map data provides
postal code searching.) If you are unsure of the city, touch
Search All.
4. Enter the number of the address, and touch Done.
5. Enter the street name, and touch Done.
6. Select the correct street in the list, if necessary.
7. Touch the address, if necessary.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Setting a Home Location
Set your home location for the place you return to most often.
1. Touch Where To? > Go Home.
2. Select an option:
• Enter your address.
• Use your current location.
• Choose from a list of recently found locations.
Going Home
To navigate home after you have set your home location, touch
Where To? > Go Home.
Changing Your Home Location
To set a different home location:
1. Touch Tools > My Data > Set Home Location.
2. Select an option:
• Enter your address.
• Use your current location.
• Choose from a list of recently found locations.
To edit your home location:
1. Touch Where To? > Favorites > All Favorites > Home.
2. Touch Edit, enter your changes, and touch Done.
55
Automotive Mode: Where to?
Go! Page Options
Using the On-Screen Keyboard
When an on-screen keyboard appears, touch a letter or number to
enter it.
➊
➋
Touch to add a space. Touch and to move the cursor.
Touch to delete a character. Touch and hold
to erase the
entire entry.
➌
➍
Touch &?% to enter special characters, such as punctuation marks.
Go! Page
➊
➋
➌
➍
Touch to view a turn-by-turn map to this location.
Touch to create a turn-by-turn route to this location.
Touch to view this location on the map.
Touch to save this location to your Favorites.
Finding a Place by Spelling the Name
If you know the name of the destination you are looking for, you
can spell it using the on-screen keyboard. You can also enter letters
contained in the name to narrow the search.
1. Touch Where To? > Points of Interest > Spell Name.
2. Using the on-screen keyboard, enter letters of the name of your
destination. Touch Done.
56
Searching near Another Location
1. Touch Where To? > Near….
2. Select an option:
• Where I Am Now—search near your current location.
• A Different City—search near the city you enter.
• My Current Route—search along your active route.
• My Destination—search near your current destination.
Finding Recently Found Places
Your device stores the last 50 of your recent finds in the Recently
Found list. The most-recently viewed places appear at the top
of the list. Touch Where To? > Recently Found to view your
recently found items.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Automotive Mode: Where to?
Deleting Recently Found Places
To remove all places from the Recently Found list, touch Clear >
Yes.
Note: When you touch Clear, all items in the list are removed.
This process does not delete the actual place from your device.
Favorites
You can save places in your Favorites so you can quickly find
them and create routes to them. Your home location is also stored
in Favorites.
Saving Your Current Location
From the Map page, touch the vehicle icon (
Location to save your current location.
). Touch Save
Saving Places You Find
1. From the Go! page, touch Save.
2. Touch OK. The place is saved in Favorites.
Editing Saved Places
1. Touch Where To? > Favorites.
2. Select the category and the location you want to edit.
3. Touch Edit.
4. Touch an item to edit:
• Change Name—enter a new name, and touch Done.
• Attach Photo—select a picture that you have loaded on
your device or on an SD card to assign to the location.
• Change Map Symbol—touch a new symbol used to mark
this location on the map.
• Change Phone Number—enter a phone number, and touch
Done.
• Change Categories—select another category for the
location.
• Delete—touch Yes to remove this item from the Favorites
list.
Finding Saved Places
1. Touch Where To?.
2. Touch Favorites. Your saved locations are listed.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
57
Automotive Mode: Where to?
Finding a Place Using the Map
Using Custom Routes
Use the Browse Map page to view different parts of the map. Touch
Where To? > Browse Map.
Touch Where To? > Custom Routes. Select the route you want to
take, and touch Go!.
Tips for Browsing the Map
Creating a Custom Route
• Touch the map, and drag to view different parts of the map.
• Touch and to zoom in and out.
• Touch any object on the map. An arrow appears pointing at the
object. Touch Save to save this location.
• Touch Go! to navigate to the location.
• If the GPS mode is off, touch Set Loc to set your simulated
location to the selected location (see page 65).
58
Use your device to create and save routes before your next trip.
You can save up to 10 routes.
1. Touch Where To? (or Tools) > Custom Routes > New.
2. Touch Add New Start Point.
3. Find a location for your start point, and touch Select.
4. Touch Add New End Point.
5. Find a location for your end point, and touch Select.
6. Touch
to add another location to your route. Touch
to
remove a location.
7. Touch Next to calculate your route and view it on the map.
8. Touch Save to save the route and exit.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Automotive Mode: Where to?
Editing Custom Routes
1. Touch Where To? (or Tools) > Custom Routes.
2. Select the route you want to edit.
3. Touch Edit.
4. Touch an option to edit the route:
• Change Name—enter a new name, and touch Done.
• Add/Remove Points—add or remove points from the route.
• Manually Reorder Points—change the order of points
along your route.
• Optimally Reorder Points—automatically order the points.
• Recalculate—change the route preference to calculate by
faster time, shorter distance, or off road.
• Delete—remove this route.
• Your changes are automatically saved when you exit any of
the route edit pages.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Entering Coordinates
If you know the geographic coordinates of your destination, you
can use your device to navigate to your destination using the
latitude and longitude coordinates (or other coordinate formats).
This can be especially helpful when geocaching.
1. Touch Where To? > Coordinates.
2. Touch Format to select the correct coordinate format for the
type of map you are using.
3. Touch a direction field to select a new direction.
4. Touch a numeric field to enter the coordinates, and touch Done.
5. After you have entered the proper coordinates, touch Next.
Navigating Off Road
If you are not following roadways as you navigate, use Off Road
mode. Touch Tools > Settings > Navigation > Route Preference
> Off Road > OK.
59
Automotive Mode: Using the Map
Automotive Mode: Using the Map
Your route is marked with a magenta line. As you travel, your
GPSMAP 620 or GPSMAP 640 guides you to your destination
with voice prompts, arrows on the map, and directions at the top
of the map. A checkered flag marks your destination. If you depart
from the original route, your device recalculates the route and
provides new directions.
➊
Next Turn
➋
➌
➍
➎
Automotive Mode: Map Page
Tip: A speed limit icon could appear as you travel on major
roadways. This icon displays the current speed limit of the
roadway.
60
➊ Touch to view the next turn.
➋ Touch to view the turn list.
➌ Touch to zoom in and zoom out.
➍ Touch the vehicle icon to view the Where Am I? page.
➎ Touch to view the Trip Computer.
When you are navigating a route, the next turn shows the turn on
the map and the distance and time left before you reach the turn.
To view an upcoming turn on the map, touch the turn indicator on
the map, or touch any turn from the turn list.
Turn List
When you are navigating a route, the turn list displays turn-by-turn
instructions for your entire route and the distance between turns.
Touch the text bar on the top of the map to open the turn list. Touch
a turn on the list to view the instructions for that turn. Touch Show
Map to view the entire route on the Browse Map page.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Automotive Mode: Using the Map
Trip Computer
The trip computer displays your current speed and provides helpful
statistics about your trip. To view the trip computer, touch the
Speed field on the map.
If you make frequent stops, leave the device turned on so it can
accurately measure elapsed time during the trip.
Resetting the Trip Computer
Reset the trip computer before beginning a trip. From the map,
touch the Speed field. Touch Reset Trip to reset the information on
the trip computer. Touch Reset Max to reset the maximum speed.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
61
Automotive Mode: Managing Files
Automotive Mode: Managing Files
You can store files, such as JPEG image files, in the internal
memory on the GPSMAP 620 or GPSMAP 640 or on an SD card.
Note: The GPSMAP 620 and GPSMAP 640 are not compatible
with Windows® 95, 98, Me, or Windows NT®. It is also not
compatible with Mac® OS 10.3 and earlier. This is a common
limitation of most USB mass storage devices.
The GPSMAP 620 and GPSMAP 640 support the following file
types:
• JPEG and JPG image files.
• Maps and GPX waypoint files from MapSource: see page 70.
NOTE: User data (waypoints, routes, and tracks) is not shared
between marine mode and automotive mode.
62
Copying Files to the Unit
1. Insert an SD card in the GPSMAP 620 or GPSMAP 640
(optional).
2. Connect a mini-USB connector to the back of the device.
3. Connect the larger end of the cable to an available USB port
on your computer. Your device and memory card appear as
removable drives in My Computer on Windows computers and
as mounted volumes on Mac computers.
NOTE: Some operating systems or computers with
multiple network drives cannot display the GPSMAP 620 or
GPSMAP 640 drives. See your operating system Help file to
learn how to map the drives.
4. Browse your computer for the file you want to copy. You can
copy JPEG and JPG image files or maps and GPX waypoint
files from MapSource.
5. Highlight the file, and click Edit > Copy.
6. Open the “Garmin” or memory card drive/volume.
7. Click Edit > Paste. The file appears in the list of files in the
device memory or on the memory card.
8. When you are finished transferring files, click the Safely
Remove Hardware icon in your toolbar (system tray), or drag
the volume icon to the Trash on Mac computers.
9. Unplug your GPSMAP 620 or GPSMAP 640 from your
computer.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Automotive Mode: Managing Files
Copying Automotive Data to the Unit
Using MapSource
1. Check your MapSource version on your computer by clicking
Help > About MapSource. If the version is older than 6.12.2,
update to the most-current version by clicking Help > Check for
Software Updates or check the Garmin Web site at www
.garmin.com.
2. Connect a mini-USB connector to the back of the GPSMAP 620
or GPSMAP 640.
3. Connect the larger end of the cable to an available USB port
on your computer. Your device and memory card appear as
removable drives in My Computer on Windows computers and
as mounted volumes on Mac computers.
NOTE: Some operating systems or computers with
multiple network drives cannot display the GPSMAP 620 or
GPSMAP 640 drives. See your operating system Help file to
learn how to map the drives.
4. From MapSource, click on Transfer > Send to Device.
5. From the Send to Device window, select the drive for the
GPSMAP 620 or GPSMAP 640, and the types of data you want
to copy to your device.
6. Click Send. MapSource transfers a file named Temp.gpx file to
the Garmin\GPX directory.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
7. Click the Safely Remove Hardware icon in your toolbar (system
tray), or drag the volume icon to the Trash on Mac computers.
8. Unplug your GPSMAP 620 or GPSMAP 640 from your
computer.
Deleting Automotive Files
Connect the GPSMAP 620 or GPSMAP 640 to your computer, and
open the device or SD card drive/volume. Highlight the file you
want to delete, and press the Delete key on the computer keyboard.
Notice
If you do not know the purpose of a file, do not delete it. Your
device memory contains important system files that should not be
deleted.
63
Automotive Mode: Using the Tools
Automotive Mode: Using the Tools
The Tools menu provides many features that are helpful when you
are traveling. From the Menu page, touch Tools to access the Tools
menu.
Settings
For information about the settings, see page 65.
Where Am I?
Touch Where Am I? to view current location information,
including hospitals, police stations, and fuel. This feature is helpful
if you need to tell emergency personnel your location. Touch Save
Location to save your current location.
Viewing a Slide Show
Touch Slide Show to start a slide show, which displays each image
for a few moments and then displays the next image.
Touch anywhere on the screen to stop the slide show. Touch Stop
to return to the list of pictures. Touch Resume to resume the slide
show. Touch and to zoom in and to zoom out.
Navigating to a Picture
If a picture contains location information, touch Info, and then
touch Go! to create a route to it.
My Data
Touch Tools > My Data to manage and delete your saved data,
such as your Favorites.
Picture Viewer
Use the picture viewer to view pictures that you have stored in your
device or on an SD card.
See page 62 for more information about loading pictures to your
device.
1. Touch Tools > Picture Viewer.
2. Touch a picture to view a larger image of it.
3. Touch the arrows to view all the images.
64
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Automotive Mode: Advanced Configuration
Automotive Mode: Advanced
Configuration
1. Touch Tools > Settings.
2. Touch the setting you want to change.
3. Touch the button under the setting name to change it.
Changing the Navigation Settings
Touch Tools > Settings > Navigation.
Route Preference—select a preference for calculating your route:
GPS Simulator—turn on the simulator to turn off the GPS mode
and simulate navigation, and to save battery power.
• Faster Time—to calculate routes that are faster to drive but can
be longer in distance.
• Shorter Distance—to calculate routes that are shorter in
distance but can take more time to drive.
• Off Road—to calculate point-to-point routes (without roads).
Avoidances—select the road types you want to avoid on your
routes.
Usage Mode—change to marine mode.
Restore—restore the original navigation settings.
Changing the System Settings
Touch Tools > Settings > System.
Units—change units of measure to Kilometers or Miles.
Keyboard—touch QWERTY for a layout similar to a computer
keyboard, or touch ABC for an alphabetical layout.
About—display the device software version number, the unit ID
number, and the audio version number. You need this information
when you update the system software or purchase additional map
data (see page 70).
Restore—restore the original system settings.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Adjusting the Display Settings
Touch Tools > Settings > Display.
Color Mode—select Daytime for a light background, Nighttime
for a dark background, or Auto to automatically switch between
the two.
Screen Shot—turn on Screen Shot mode. Touch to take
a screen shot. The picture bitmap file is saved in the Garmin\
Screenshot folder on the GPSMAP 620 or GPSMAP 640 drive.
65
Automotive Mode: Advanced Configuration
Brightness—adjust the backlight brightness level. Reducing the
backlight brightness increases your battery life.
Setting the Languages
Tip: You can also adjust the brightness level from any screen by
pressing and quickly releasing .
Voice—change the language for voice prompts.
Restore—restore the original display settings.
Adjusting the Volume
Touch Tools > Settings > Language.
Text—change all on-screen text to the selected language. Changing
the text language does not change the language of user-entered data
or map data, such as street names.
From the Menu page, touch Volume. Touch and to adjust the
volume. Touch the box next to Mute to mute all audio.
Keyboard—select the keyboard for your language. You can
also change the keyboard language mode from any keyboard by
touching the Mode button.
Adjusting the Backlight
Restore—restore the original language settings.
1. From any screen, press and quickly release
2. Touch and to adjust the backlight.
.
Updating the Time Settings
Touch Tools > Settings > Time.
Time Format—select a 12-hour, 24-hour, or UTC time format.
Current Time—manually set the time on your device. Select
Automatic to have the GPSMAP 620 or GPSMAP 640 set the time
based on your location.
Restore—restore the original time settings.
66
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Automotive Mode: Advanced Configuration
Changing the Map Settings
Changing Security Settings
Map Detail—adjust the amount of detail shown on the map.
Showing more detail can cause the map to redraw slower.
Safe Mode—turn the safe mode on or off. When your vehicle is
moving, Safe mode disables all functions that require significant
operator attention and could become a distraction while driving.
Touch Tools > Settings > Map.
Map View—select a map perspective.
• Track Up—display the map in two dimensions (2D) with your
direction of travel at the top.
• North Up—display the map in 2D with North at the top.
• 3D—display the map in three dimensions (3D) with your
direction of travel at the top.
Vehicle—touch Change to change the icon used to display your
position on the map. Touch the icon you want to use, and then
touch OK. Download additional vehicle icons at
www.garmingarage.com.
Touch Tools > Settings > Security.
Restore—restore the original security settings.
Restoring All Settings
1. Touch Tools > Settings.
2. Touch Restore.
3. Touch Yes.
Trip Log—show or hide the log of your travels. To clear your trip
log, touch Tools > My Data > Clear Trip Log.
Map Info—view the maps and the version of each map loaded on
your device. Touch a map to enable (check mark) or disable (no
check mark) that map.
Restore—restore the original map settings.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
67
Appendix
Appendix
Calibrating the Screen
Power the unit on in marine mode, or switch to marine mode.
See page 38 for calibration instructions.
Resetting Your GPSMAP 620 or
GPSMAP 640
If your GPSMAP 620 GPSMAP 640 stops responding, turn off the
device, and then turn it back on. If this does not help, reset your
device by removing and reconnecting the battery.
Updating the Software
1. Go to www.garmin.com/products/webupdater, and download
WebUpdater to your computer.
2. Connect the GPSMAP 620 or GPSMAP 640 to your computer
using the mini-USB cable.
3. Run WebUpdater, and follow the on-screen instructions.
After confirming that you want to perform an update, WebUpdater
automatically downloads the update and installs it on your device.
68
Clearing User Data
IMPORTANT: This deletes all user-entered information.
1. Hold your finger on the lower-right corner of the screen while
turning on the GPSMAP 620 or GPSMAP 640.
2. Keep your finger pressed on the screen until the pop-up window
appears.
3. Touch Yes to clear all user data.
All original settings are restored. Any items that you have saved are
erased.
Battery Information
To maximize the life of the battery, do not leave your
GPSMAP 620 or GPSMAP 640 in direct sunlight, and avoid
prolonged exposure to excessive heat.
The battery icon in the corner of the Menu page and the Home
screen indicates the status of the GPSMAP 620 or GPSMAP 640
battery. To increase the accuracy of the battery gauge, fully
discharge the battery and then fully charge it. Do not unplug the
GPSMAP 620 or GPSMAP 640 until it is totally charged.
Note: If the device will not used for an extended period of time
(longer than one week), remove the battery pack.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Appendix
Charging Your GPSMAP 620 or
GPSMAP 640
• Before using the device for the first time, charge the battery for
at least six hours.
• Place the device in the mounting bracket with the bracket
connected to power. The vehicle or vessel key may need to be
turned to ON/ACC for the GPSMAP 620 or GPSMAP 640 to
charge.
Changing the Fuse on the Automotive
Mount
Notice
When replacing the fuse, do not lose any of the small pieces, and
put them back in the proper place.
If your unit will not charge in your vehicle, you might need to
replace the fuse located at the tip of the vehicle adapter.
Caring for the Unit
The case is constructed of high-quality materials and does not
require user maintenance, except cleaning.
Cleaning the Case
Clean the unit’s outer casing (except for the screen) using a cloth
dampened with a mild detergent solution and then wipe dry.
Avoid chemical cleaners and solvents that may damage plastic
components.
Cleaning the Screen
The unit’s lens is coated with a special anti-reflective coating that
is sensitive to skin oils, waxes and abrasive cleaners. Cleaners
containing ammonia, alcohol, abrasives, or anti-grease detergents
will harm the anti-reflective coating. It is important to clean the
lens using an eyeglass lens cleaner (that is specified as safe for antireflective coatings) and a clean, lint-free cloth.
1. Unscrew the black, round end piece, and remove it.
2. Remove the fuse (glass and silver cylinder), and replace it with
a 1.5 A fast-blow fuse.
3. Place the silver tip in the black end piece. Screw on the black
end piece.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
69
Appendix
Water Immersion
The unit is waterproof to IEC Standard 60529 IPX7. It can
withstand immersion in 1 meter of water for 30 minutes. Prolonged
submersion can cause damage to the unit. After submersion, be
certain to wipe and air dry the unit before reuse.
Avoiding Theft
• To avoid theft, remove the unit and mount from sight when not
in use.
• Do not keep your unit in the glove compartment.
• Register your product at http://my.garmin.com.
Additional Maps
You can purchase additional MapSource map data from Garmin
and load the maps in your GPSMAP 620 or GPSMAP 640 internal
memory or on an optional memory card.
To determine the versions of the maps that are loaded on your
device, open the Menu page. Touch Tools > Settings > Map >
Map Info. Check www.garmin.com/unlock/update.jsp to see if
an update for your map software is available. To enable additional
maps, you need your unit ID (page 65) and serial number (located
near the power connector).
70
To load maps or waypoints in your device memory or on
your memory card, select the name for your GPSMAP 620 or
GPSMAP 640 drive or memory card drive. Refer to the MapSource
Help file for more information.
About GPS Satellite Signals
Your GPSMAP 620 or GPSMAP 640 must acquire GPS satellite
signals in order to navigate. If you are indoors, near tall buildings
or trees, or in a parking garage, your device may not acquire
satellites. Go outside to an area free from tall obstructions to use
your device.
When your GPSMAP 620 or GPSMAP 640 has acquired satellite
signals, the signal strength bars on the Home screen (or Menu
page) are green. When it loses satellite signals, the bars turn red or
clear.
For more information about GPS, go to www.garmin.com
/aboutGPS.
Extras and Optional Accessories
For more information about optional accessories, go to http://buy
.garmin.com or www.garmin.com/extras, or contact your Garmin
dealer.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Appendix
Specifications
Physical size: W × H × D: 6 × 4 × 1 7/8 in.
(151 × 102.49 × 47.25 mm)
Weight: 17.3 oz. (490.4 g)
Display: 5 3/16 in. (132 mm) diagonal, 800 × 480 pixels; bright
WVGA landscape display; white backlight; touchscreen
Case: Waterproof to IEC 529-IPX-7
Operating temperature range: From 5°F to 131°F (from -15°C
to 55°C)
Charging temperature range: From 32°F to 113°F (from 0°C to
45°C)
Data storage: Internal memory and optional removable SD card.
Data stored indefinitely.
Computer interface: USB 2.0 high-speed and full-speed mass
storage
Operating system: Garmin
Charge time: Approximately 6 hours
Power input: 11–32 Vdc, vehicle power using vehicle power cable
Usage: 12 W max.
Battery life: Up to 9 hours with minimum backlight, and up to 5
hours with maximum backlight.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Battery type: User-replaceable rechargeable lithium-ion battery
GPS receiver: High-sensitivity
Acquisition times*:
Warm: <1 sec.
Cold: <33 sec.
Factory Reset: <36 sec.
*Average acquisition times for a stationary receiver with a clear
view of the sky.
Compass-safe distance: 17 in. (43.18 cm)
Declaration of Conformity
Hereby, Garmin, declares that this product is in compliance
with the essential requirements and other relevant provisions of
Directive 1999/5/EC. To view the full Declaration of Conformity,
go to www.garmin.com/compliance.
Software License Agreement
BY USING THE GPSMAP 620 OR GPSMAP 640, YOU AGREE
TO BE BOUND BY THE TERMS AND CONDITIONS OF THE
FOLLOWING SOFTWARE LICENSE AGREEMENT. PLEASE
READ THIS AGREEMENT CAREFULLY.
71
Appendix
Garmin Ltd. and its subsidiaries (“Garmin”) grant you a
limited license to use the software embedded in this device (the
“Software”) in binary executable form in the normal operation of
the product. Title, ownership rights, and intellectual property rights
in and to the Software remain in Garmin and/or its third-party
providers.
You acknowledge that the Software is the property of Garmin and/
or its third-party providers and is protected under the United States
of America copyright laws and international copyright treaties.
You further acknowledge that the structure, organization, and
code of the Software, for which source code is not provided, are
valuable trade secrets of Garmin and/or its third-party providers
and that the Software in source code form remains a valuable
trade secret of Garmin and/or its third-party providers. You agree
not to decompile, disassemble, modify, reverse assemble, reverse
engineer, or reduce to human readable form the Software or any
part thereof or create any derivative works based on the Software.
You agree not to export or re-export the Software to any country in
violation of the export control laws of the United States of America
or the export control laws of any other applicable country.
72
Troubleshooting
Problem/Question
Solution/Answer
My device never gets
satellite signals.
Take your GPSMAP 620 or GPSMAP 640 out
of parking garages and away from tall buildings
and trees. Remain stationary for several
minutes.
My GPSMAP 620 or
GPSMAP 640 does
not charge in my
vehicle.
Check the fuse in the vehicle power cable
(page 69).
Ensure the vehicle is turned on and is supplying
power to the power outlet.
Your device can only charge between 32°F and
113°F (between 0°C and 45°C). If the device is
placed in direct sunlight or in a hot environment,
it cannot charge.
How do I clear all my
user data?
Hold your finger on the lower‑right corner of the
GPSMAP 620 or GPSMAP 640 screen while it
is turning on. Keep your finger pressed until the
message appears. Touch Yes to clear all user
data.
My battery gauge
does not seem
accurate.
Allow the device to fully discharge, and fully
charge it (without interrupting the charge cycle).
The touchscreen is
not responding to my
touches.
Calibrate the touchscreen as described on
page 38.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Appendix
Messages and Alarms (Marine Mode)
Problem/Question
Solution/Answer
How do I know my
GPSMAP 620 or
GPSMAP 640 is in
USB mass storage
mode?
When your device is in USB mass storage
mode, a picture of a GPSMAP 620 or
GPSMAP 640 connected to a computer
is shown. Also, you should see two new
removable disk drives listed in My Computer.
Boat is not Moving Fast Enough to Calibrate—(speed sensor)
appears during water speed calibration. Check the speed wheel for
blockage and calibrate again. If the wheel is clear, calibrate again
and increase speed.
My computer
never detects the
GPSMAP 620 or
GPSMAP 640 when I
connect it.
1. Unplug the USB cable from your computer.
2. Turn off the GPSMAP 620 or GPSMAP 640.
3. Plug the USB cable into a USB port on
your computer and into your device.
The GPSMAP 620 or GPSMAP 640
automatically turns on and goes into
USB mass storage mode. Ensure your
GPSMAP 640 is connected to a USB port
and not a USB hub.
Can’t Read User Card—cannot read card when attempting a user
data transfer.
I cannot see any new
removable drives in
my list of drives.
How can I find
restaurants near the
hotel I will be staying
at in the future?
If you have several network drives mapped
on your computer, Windows can have trouble
assigning drive letters to your GPSMAP 620
or GPSMAP 640 drives. See your operating
system Help file to learn how to map or assign
drive letters.
1. Touch Where To? > Near > A Different
City.
2. Find the hotel, and touch Go!.
3. Touch Menu > Where To? > Near > My
Destination.
4. Search for a restaurant. Restaurants
nearest your hotel are listed first.
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Can’t Unlock Maps—maps are locked and cannot be used on this
unit.
Can’t Write User Card—cannot write card when attempting a
user data transfer.
Database Error—general database error. Contact product support.
Lost Satellite Reception—the unit has lost satellite reception.
Make sure you have a clear view of the sky.
Maps Fit, Some Maps Will Not Be Drawn—there are more maps
present on the SD card than what the unit can support. Some of the
maps on the card will not be drawn or used to find map features.
73
Index
Index
Symbols
2-D, 3-D map view 67
A
accessories 70
active tracks 45
add contact (DSC) 35
additional maps 70
addresses 55
add turn 15
AIS 30, 43
targeting 30
AIS display range 32
alarms 73
anchor drag 41
arrival 41
clock 42
collision 30
deep water 42
fish 42
GPS accuracy 42
off course 41
shallow water 42
system 42
water temp 42
anchor drag alarm 41
apparent wind 47
74
attaching a photo to a location 57
audio out 1, 38
audio version 65
Auto Guidance 10, 17, 43
auto mag var 40
avoiding
road types 65
theft 70
B
background color
automotive 65
marine 7
backing up data 28
backlight, Marine 7
battery 68
locking ring 1
replacing 3
status 5, 72
battery information 68
beeper options 38
blend 12
BlueChart g2 Vision 10
brightness, screen
automotive 66
marine 7
browsing the map 58
C
calibrating, touchscreen 38
celestial information 27
charging device 69, 72
chart appearance
fishing chart 51
Mariner’s Eye 3D 50
navigation chart 48
Perspective 3D 50
chart borders, BlueChart 49
charts
fishing 8, 10
navigation 8
cleaning 69
clear report 35
clear user data 28
clock alarm 42
collision alarm 30
color mode
automotive 65
marine 7
colors, hazard 50
communications settings 40
compass 24
safe distance 71
compass tape 48, 51
configuring 5, 53
coordinates 59
copy built-in map 28
course up 48
cruising 47
current location, save 57
current stations 26
D
dangerous target, AIS 31
dashboard 24
data bars
Mariner’s Eye 3D 50
navigation chart 47
perspective 3D 50
VMG 49
data transfer 28
Declaration of Conformity 71
deep water alarm 42
deleting
all user data 68
character 56
Favorites 57, 59
files 63
recent finds list 57
route 59
depth 39
detail maps 67
detour 54
diagnostics, NMEA 0183 41
digital selective calling 34, 43
display range, AIS 32
display settings 38, 65
distress call
incoming 35
navigating to 35
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Index
driving directions 60
DSC 34, 43
editing the list 35
navigating to 35
trails 37
DSC contact 35
DSC list 34
deleting 35
sorting 34
E
elevation unit settings 40
event log 39
extras 70–71
F
factory settings 39
Favorites 57
files 62–63
deleting 63
supported types 62
finding places 6, 54
by address 55
by name 56
by postal code 55
near another location 56
recent selections 56
saved places (Favorites) 57
Fish Eye 3D 11
fishing 47
fishing chart 11
fuse, changing 69
G
Garmin data transfer 40
geocaching 59
Go! page options 56
go home 55
GPS 39
about GPS 5, 70
off/on 65
grid north 40
Guide To 17
H
hazard colors 50
heading 40
heading line 48
head up 48
high resolution satellite imagery 10
home screen 5
home, setting a location 55
I
ID number
waypoints 41
J
JPEG image files 62
GPSMAP 620 and GPSMAP 640 Owner’s Manual
K
keel offset, adjusting 42
keyboard
automotive 56, 65
language mode 66
marine 38
kilometers 65
L
land only 12
land POIs 49
lane width 50
language, changing 38
language settings 66
light sectors 49
lithium-ion battery 68, 71
lost target, AIS 30
M
man overboard (MOB) 21
deleting 22
manually reorder points 59
map
adding 70
browsing 58
detail level 67
enabling detail maps 67
Map Info button 67
settings 67
updating 70
version 67
viewing 67
zooming 58
map datum 40
MapSource 62, 70
MapSource data 29
Mariner’s Eye 3D 11
mark button 6, 21
max speed, reset 61
measurement units 39
menu page 5, 53
merge from card 28
messages 73
miles 65
moon phase 27
moon rise/set 27
mounting bracket 1
mounting the device 2
automotive 53
marine 5
mute, audio 66
my boat 42
my data 64
N
navigation 47, 60
mode 65
settings 65
navigation chart 8
navigation chart setup 46
75
Index
nearby stations 26
next turn 60
NMEA high speed 40
NMEA setup 41
NMEA STD. 40
north up 48
numbers, dashboard 25
position icon 67
position reports, DSC 36
posn precision 41
power button 1
pressure unit settings 40
projected heading, AIS 33, 46
O
QWERTY keyboard 38, 65
off road, routing 59, 65
on-screen keyboard 56
optimally reorder points 59
orientation 48
other boats 43
output, audio 66
overlay numbers 39, 47
P
panning 8
Perspective 3D 10
photos
aerial 10
attaching to locations 57
copying to device 62
picture viewer 64
satellite imagery 12, 46
picture viewer 64
points of interest 56
port types 40
position 40
76
Q
R
range rings 50
recalculate 59
recently found locations 56
registering 70
replace from card 28
resetting
device 68
the max speed 61
the trip data 61
restoring backup marine data 29
rings 50
roses 47
route labels 43
route leg data field 47
routes, automotive
adding a stop 54
custom 58–59
editing 59
off road 65
preferences 65
simulating 65
stopping 54, 66
routes, marine
cancelling 16
creating 15
displaying saved 28
following 16
saving 16
stopping 7
viewing 28
S
safe depth 43, 50
safe height 43
safe mode 67
safety shading 49
safe zone 43
sailing data bar 47
satellite imagery 10, 12
satellite signals 70
saved tracks 45
save to card 28, 39
saving
places you find 57
your current location 57, 58, 64
screen, brightness
automotive 66
marine 7
screenshot capture
automotive 65
marine 38
SD cards
inserting and replacing 4
using 28
search area 56
security settings 67
service points 46
settings, restoring 67
setting your location 58
shallow water alarm 42
shoreline distance 44
show report 26
simulating a route 65
simulator mode
automotive 65
marine 38
software
license agreement 71
updating 68
version 65
sorting the DSC list 34
specifications 71
speed filter 39
speed limit icon 60
speed unit settings 39
spot depths 49
stop navigation 7, 46
style, Mariner’s Eye 3D 50
sunrise/sunset 27
GPSMAP 620 and GPSMAP 640 Owner’s Manual
Index
supported file types 62
symbols
AIS targeting 30
automotive map 57
DSC trails 46
DSC vessels 36
MOB 21
on navigation chart 49
waypoint 46
system information, marine 39
system settings 65
system units 39
T
temperature 39
text language 66
tides/currents 46
tide station 26
time 40
time settings 66
Time To 43
time zone 40, 66
tools 64
touchscreen
calibrating 38, 72
settings 66
tracks
editing or deleting 23
saving 23
using 22
tracks display 45
trails
AIS 33, 46
DSC 37, 46
transferring data 28
trip computer, automotive 61
trip data, reset 61
trip log 67
trip screen, marine 25
troubleshooting 72
true north 40
true wind 47
turn-by-turn directions 60
turn list 60
turn transitions, routes 45
U
unit ID 65
units of measure
changing 39
updating
maps 70
software 68
usage mode 5, 39, 65
USB 1, 73
mass-storage mode 62
user data
clearing 28
deleting 68
user mag var 40
GPSMAP 620 and GPSMAP 640 Owner’s Manual
V
vehicle icon 67
vessel trails 37
via point, adding 54
viewing
currents 26
user data 28
Vision
BlueChart g2 10
VMG 47
voice language 66
volume, adjusting 7, 38, 54, 66
true 47
world map 49
Z
zoom 8, 10, 11, 58
W
WAAS/EGNOS 39
water temperature alarm 42
waypoints
creating 9, 22
deleting 21, 22
labels 46
list 45
viewing 28
WebUpdater 68
Where Am I? 64
Where To?
automotive 55–59
marine 13, 19
wind
apparent 47
speed 47
77
For the latest free software updates (excluding map data) throughout the life of your
Garmin products, visit the Garmin Web site at www.garmin.com.
TA-2012/1565
© 2008–2013 Garmin Ltd. or its subsidiaries
Garmin International, Inc.
1200 East 151st Street, Olathe, Kansas 66062, USA
Garmin (Europe) Ltd.
Liberty House, Hounsdown Business Park, Southampton, Hampshire, SO40 9LR UK
Garmin Corporation
No. 68, Zhangshu 2nd Road,
Xizhi Dist., New Taipei City, 221, Taiwan (R.O.C.)
www.garmin.com
September 2013
190-01006-10_0A Printed in Taiwan
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