Garmin 740 S Owners Manual

							GPSMAP 700 Series Owner’s Manual 47
Device Configuration 
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.
•  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.
Setting the Heading Reference
You can set the directional reference used in calculating heading information.
1. From the Home screen, select  Configure > Units > Heading.
2.  Complete an action:
• Select  Auto Mag Var (automatic magnetic variation) to set the magnetic declination for your location 
automatically.
•  Select  True to set true north as the heading reference.
•  Select  Grid to set grid north as the heading reference (000º).
•  Select  User Mag Var to set the magnetic variation value manually, enter the magnetic variation, and 
select  Done.
Coordinate Systems
Setting the Position Format or the Map Datum Coordinate Systems
You can set the position format in which a given location reading appears, and the coordinate system on which 
the map is structured. The default coordinate system is WGS 84. 
NoTe: Do not change the position format or the map datum coordinate system unless you are using a map or 
chart that specifies a different position format.
1. From the Home screen, select  Configure > Units.
2.  Complete an action:
• Select  Position Format  to set the position format in which a given location reading appears, and select 
a position format.
•  Select  Map Datum to set the coordinate system on which the map is structured, and select a coordinate 
system.
Configuring the Time
1.  From the Home screen, select  Configure > Units > Time.
2.  Complete an action:
• Select  Time Format  to set a time-keeping standard, and select  12 Hour, 24 Hour, or UTC (universal 
time coordinate).
•  Select  Time Zone > Auto Time Zone to allow the chartplotter to set the time zone automatically.
•  Select  Time Zone > Custom Time Zone to set the time zone manually, enter the time zone hour 
adjustment, and select  Done. 
						

							48 GPSMAP 700 Series Owner’s Manual
Device Configuration
Units of Measure
You can set the units of measure the chartplotter shows, using a standardized system of measurements or 
creating a customized system of measurements.
Selecting a Standardized System of Measurement 
1. From the Home screen, select  Configure > Units > System Units.
2.  Select  Statute (mh, ft, ºF), Metric  (kh, m, ºC), or Nautical (kt, ft, ºF).
Creating a Customized System of Measurement
You must be receiving NMEA Sonar depth data or using an “S” series chartplotter (such as a GPSMAP 720s) 
with a built-in sounder to view depth and temperature information. 
You can select individual units of measure to create a customized system of measurement for your chartplotter 
display. 
1. From the Home screen, select  Configure > Units > System Units > Custom.
2.  Complete an action:
• Select  Depth, and select  Feet, Fathoms, or Meters .
•  Select  Temperature, and select  Fahrenheit (ºF) or Celsius (ºC).
•  Select  Distance, and select  Miles, Kilometers , Nautical (nm, ft) or Nautical (nm, m).
•  Select  Speed > Vessel Speed, and select  Miles Per Hour, Kilometers Per Hour, or Knots.
•  Select  Speed > Wind Speed, and select  Miles Per Hour, Meters Per Sec, or Knots.
•  Select  elevation, and select  Feet or Meters.
•  Select  Volume, and select  Litres, US Gallons, or UK Gallons.
•  Select  Pressure > Gauge Pressure, and select  kPa or psi.
•  Select  Pressure > Atmospheric Pressure, and select  Millibars or Inches of Mercury.
About Chart Overlay Numbers
Overlay numbers with data fields ➊ can appear on specific charts, 3D charts, radar views
(page 66), and combination screens ( page 22). The data overlay for each chart or 3D chart view can be 
configured separately.
➊
Navigation Chart with Data Overlay
➊
Several data overlays are available. You can select the data fields to be shown within each data overlay.
When overlay numbers are displayed on the chart, the navigation inset is shown during navigation.  The 
compass tape can be shown or hidden in each overlay. 
						

							GPSMAP 700 Series Owner’s Manual 49
Device Configuration 
Selecting a Data Overlay
1. From the Home screen, select  Charts.
2.  Select a chart or a 3D chart view.
3.  Select  Menu.
4.  Complete an action:
• Select  Navigation Chart Setup > overlay Numbers.
•  Select  Fishing Chart Setup > overlay Numbers.
•  Select  overlay Numbers.
5.  Select 
 or  to select a data overlay.
Configuring Data Fields on a Chart
You can select the type of data shown within a data field.
1. From the Home screen, select  Charts.
2.  Select a chart or a 3D chart view.
3.  Select  Menu.
4.  Complete an action:
• Select  Navigation Chart Setup > overlay Numbers.
•  Select  Fishing Chart Setup > overlay Numbers.
•  Select  overlay Numbers.
5.  Select 
 or  to select a data overlay.
6.  Touch a data field.
7.  Select a category of data.
8.  Select the data that will be displayed.
Configuring the Navigation Inset on a Chart
The navigation inset is shown only when the boat is navigating to a destination.
1. From the Home screen, select  Charts.
2.  Select a chart or a 3D chart view.
3.  Select  Menu.
4.  Complete an action:
• Select  Navigation Chart Setup > overlay Numbers.
•  Select  Fishing Chart Setup > overlay Numbers.
•  Select  overlay Numbers.
5.  Select 
 or  to select a data overlay.
6.  Select  Navigation Inset > Nav. Inset Config.
7.  Complete an action:
• Select  Route Leg Details > on to show waypoint velocity made good (VMG) when navigating a route 
with more than one leg.
•  Select  Next Turn > Distance to show next-turn data based on distance.
•  Select  Next Turn > Time to show next-turn data based on time.
•  Select  Destination, and select  Distance, Time to Destination, or Arrival  to indicate how the 
destination data appears.
Showing the Compass Tape on a Chart
The compass tape appears in a row across the top of a chart or a 3D chart view . It shows the present heading, 
and an indicator that shows the bearing to the desired course appears while navigating.
1.  From the Home screen, select  Charts.
2.  Select a chart or a 3D chart view.
3.  Select  Menu. 
						

							50 GPSMAP 700 Series Owner’s Manual
Device Configuration
4. Complete an action:
• Select  Navigation Chart Setup > overlay Numbers.
•  Select  Fishing Chart Setup > overlay Numbers.
•  Select  overlay Numbers.
5.  Select  Show Compass Tape.
Using the  Speed Filter
The speed filter averages the speed of your boat over a short period of time for smoother speed values.
1. From the Home screen, select  Configure > System > GPS.
2.  Complete an action:
• Select  Speed Filter  > on to keep the speed filter on continuously, enter the speed filter time duration 
and select  Done.
•  Select  Speed Filter  > Auto to allow the unit to provide the optimal performance as required by your 
situation, such as traveling at a constant speed or frequently changing speeds.
Other Vessels
You can show and configure information about other vessels for the Navigation chart, the Fishing chart, 
Perspective 3D, or Mariner’s Eye 3D.
NoTe: To configure Automatic Identification System (AIS) information for other vessels, your chartplotter 
must be connected to an external AIS device.
Viewing a List of AIS Targets
See “Viewing a List of AIS Targets” (page 15).
Configuring the Appearance of Other Vessels
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 List to view a list of AIS targets (page 12).
•  Select  DSC List to view a log of the most-recent DSC calls and other DSC contacts you have entered 
(page 79).
•  Select  AIS Display Setup  to configure how AIS vessels are shown on a chart (page 14).
•  Select  DSC Trails to show the tracks of DSC vessels, and select the length of the track that appears 
using a trail ( page 82).
•  Select  AIS Alarm to set up a safe-zone collision alarm for AIS vessels (page 15).
Information about Your Boat
Calibrating a Water Speed Device
If you have a speed-sensing transducer, you can calibrate that speed-sensing device. 
1. From the Home screen, select  Configure > My Boat > Calibrate Water Speed.
2.  Follow the on-screen instructions.
NoTe: If the boat is not moving fast enough or the  speed sensor is not registering a speed, a “Speed too 
low” message appears. Select  oK, and safely increase the boat speed. If the message appears again, stop 
the boat, and ensure that the speed-sensor wheel is not stuck. If the wheel turns freely , check the cable 
connections. If you continue to get the message, contact Garmin Product Support. 
						

							GPSMAP 700 Series Owner’s Manual 51
Device Configuration 
Setting the Fuel Capacity of Your Boat
1. From the Home screen, select  Configure > My Boat > Fuel Capacity.
2.  Enter the combined fuel capacity of all the engines on your boat.
3.  Select  Done.
Alarms
By default, all alarms are turned off, except the destination and weather alarms. The chartplotter must be on for 
the alarms to work.
NoTe: See the  GPSMAP 700 Series XM WX Satellite Weather
® and XM Satellite Radio Supplement  (North 
America only) for information concerning weather alarms.
Navigation Alarms
Setting an Arrival Alarm
You can set an alarm to sound when you are within a specified distance or time from a turn or a destination 
waypoint.
1.  From the Home screen, select  Configure > Alarms > Navigation > Arrival .
2.  Complete an action:
• Select  Type, and indicate whether you want arrival alarms to sound only when nearing  Destinations, or 
when nearing Destinations and Turns.
•  Select  Activation, and indicate whether the arrival alarm triggers based on  Time to arrival or based on 
Distance to arrival. 
•  Select  Change Time (if Activation is set to  Time) or Change Distance (if Activation is set to 
Distance) to indicate how long before arrival (in minutes) or how far before arrival (in units of 
distance) the alarm should sound. Enter the time or distance, and select  Done.
Setting the Anchor Drag Alarm
You can set an alarm to sound when you exceed a specified drift distance while anchored.
1. From the Home screen, select  Configure > Alarms > Navigation > Anchor Drag > on.
2.  Enter the drift distance that triggers the alarm.
3.  Select  Done.
Setting the Off Course Alarm
You can set an alarm to sound when you are off course by a specified distance.
1. From the Home screen, select  Configure > Alarms > Navigation > off Course > on.
2.  Enter the off-course distance that triggers the alarm.
3.  Select  Done.
System Alarms
Setting the Clock Alarm
You can set an alarm using the system (GPS) clock. 
1. From the Home screen, select  Configure > Alarms > System > Clock > on.
2.  Enter the time that triggers the alarm.
3.  Select  Done.
Setting the Unit Voltage Alarm
You can set an alarm to sound when the battery reaches a specified low voltage.
1. From the Home screen, select  Configure > Alarms > System > Unit Voltage > on.
2.  Enter the voltage that triggers the alarm.
3.  Select  Done. 
						

							52 GPSMAP 700 Series Owner’s Manual
Device Configuration
Setting the GPS Accuracy Error Alarm
You can set an alarm to sound when the GPS location accuracy falls outside the user-defined value.
1. From the Home screen, select  Configure > Alarms > System > GPS Accuracy > on.
2.  Enter the GPS location accuracy that triggers the alarm.
3.  Select  Done.
Setting the Total Fuel Onboard Alarm
The chartplotter must be connected to an external fuel sensor to capture fuel data.
You can set an alarm to sound when the total amount of remaining onboard fuel reaches the level you specify.
1. From the Home screen, select  Configure > Alarms > Fuel > Total Fuel onboard > on.
2.  Enter the amount of fuel that triggers the alarm.
3.  Select  Done.
Collision Alarm
See “Setting the Safe-zone Collision Alarm” (page 15).
Setting Sonar Alarms
See “Sonar Alarms” (page 77).
Setting Weather Alarms
See the  GPSMAP 700 Series XM WX Satellite Weather® and XM Satellite Radio Supplement  (North America 
only).
Chartplotter Data Management
Copying Waypoints, Routes, and Tracks to a Chartplotter
Before you copy MapSource® or HomePort data to a chartplotter, you must complete the following actions:
•  The first time that you use a memory card to copy HomePort or MapSource
® data to a chartplotter, you 
must prepare the memory card by inserting it into the chartplotter and allowing the chartplotter to place a 
file on it. This file provides information to HomePort or to MapSource to format the data.
•  Check the MapSource version on your computer by clicking  Help > About MapSource. If the software 
version is older than 6.12.2, update to the current version by clicking  Help > Check for Software 
Updates.
1.  Complete an action:
• Copy the data from HomePort to the prepared memory card (using an SD card reader attached to the 
computer) according to the process described in the HomePort Help system.
•  Copy the data from MapSource to the prepared memory card (using an SD card reader attached to the 
computer) according to the process described in the MapSource Help system.
2.  Copy the data from the data card to the chartplotter. See “Copying Data from a Data Card”   
(page 52).
Copying Data from a Data Card
1.  Insert a data card into the SD card slot on the chartplotter.
2.  From the Home screen, select  Information > User Data > Data Transfer > Card.
3.  Complete an action:
• Select  Merge From Card to transfer data from the data card to the chartplotter and combine it with 
existing user data.
•  Select  Replace From Card to transfer data from the data card to the chartplotter and overwrite existing 
user data on the chartplotter.
4.  Select the file name from the list if multiple files are listed. 
						

							GPSMAP 700 Series Owner’s Manual 53
Device Configuration 
Copying Waypoints, Routes, and Tracks to a Memory Card
1. Insert a memory card into the SD card slot on the chartplotter.
2.  From the Home screen, select  Information > User Data > Data Transfer > Card > Save To Card.
3.  Select an action to indicate the name of the new file:
• Select a file name from the list.
•  Select  Add New File to create a new file enter the file name, and select  Done.
4.  Select  Save To Card. 
The file name is saved with a .ADM extension.
Copying Built-in Maps to a Memory Card
You can copy maps from the chartplotter to a memory card for use with HomePort.
1.  Insert a memory card into the SD card slot on the chartplotter.
2.  From the Home screen, select  Information > User Data > Data Transfer > Card.
3.  Select  Copy Built-In Map to copy the maps loaded onto your chartplotter to the memory card.
Copying Waypoints, Routes, and Tracks to or from all Chartplotters on a NMEA 2000 
Network
You can transfer information for waypoints, routes, and tracks from one chartplotter connected to a NMEA 
2000 network to every other chartplotter connected to the network.  The transfer may take a long time, 
depending on the number of waypoints being transferred.
1.  From the Home screen, select  Information > User Data > Data Transfer > NMeA 2000.
2.  Complete an action:
• Select  Clone User Data to transfer data from the chartplotter to the other chartplotters connected to the 
network. Existing data is overwritten on those chartplotters.
•  Select  Merge User Data to transfer data between all the chartplotters connected to the network. Unique 
data is combined with existing data on every chartplotter.
Backing Up Data to a Computer
1.  Insert a memory card into the SD card slot on the chartplotter.
2.  From the Home screen, select  Information > User Data > Data Transfer > Card > Save to Card.
3.  Complete one of the following actions to indicate the name of the file to be backed up:
• Select a file name from the list.
•  Select  Add New File to create a new file, enter the file name, and select  Done.
4.  Select  Save To Card. 
The file name is saved with a .ADM extension.
5.  Remove the memory card from the chartplotter and insert it into an SD card reader attached to a computer .
6.  From Windows
® Explorer, open the Garmin\UserData folder on the memory card.
7.  Copy the backup file on the card and paste it to any location on the computer .
Restoring Backup Data to a Chartplotter
1. Insert a memory card into an SD card reader that is attached to the computer . 
2.  Copy a backup file from the computer to the memory card, into a folder named Garmin\UserData.
3.  Insert the memory card into the SD card slot on the chartplotter .
4.  From the Home screen, select  Information > User Data > Data Transfer > Card > Replace From Card. 
						

							54 GPSMAP 700 Series Owner’s Manual
Radar
Radar
 WARNING
The marine radar transmits microwave energy that has the potential to be harmful to humans and animals. 
Before beginning radar transmission, verify that the area around the radar is clear. The radar transmits a beam 
approximately 12° above and below a line extending horizontally from the center of the radar . Avoid looking 
directly at the radar, because the eyes are the most-susceptible parts of the body.
When you connect your chartplotter to an optional Garmin marine radar such as a GMR
™ 404/406 or a GMR 
18/24, you can view more information about your surroundings.
The GMR transmits a narrow beam of microwave energy as it rotates in a 360° pattern. When the transmitted 
energy contacts a target, some of that energy is reflected back to the radar.
Transmitting Radar Signals
1.  With the chartplotter off, connect your radar as described in the radar installation instructions.
2.  Turn on the chartplotter. 
The radar warms up and a countdown is provided to alert you when the radar is ready .
NoTe: As a safety feature, the radar enters standby mode after it warms up. This gives you an opportunity 
to verify that the area around the radar is clear before beginning radar transmission. 
3.  From the Home screen, select  Radar.
4.  Select  Cruising, Harbor, offshore, or Sentry. 
A countdown message appears while the radar is starting up, and the “Ready to Transmit” message appears.
5.  Select  Transmit.
A “Spinning Up” message appears for a few moments, and the radar begins painting an image.
Stopping the Transmission of Radar Signals
From the Radar screen, select  To Standby.
Transmitting Radar Signals from any Screen
1. Press and release  to open the display screen.
2.  Complete an action:
• Select  Transmit Radar.
•  Select  Radar to Standby . 
Adjusting the Zoom Scale on the Radar Screen
The zoom scale, also called the radar range, represents the distance from your position (the center) to the 
outermost ring. Each ring represents an even division of the zoom scale. For example, if the zoom scale is set 
at three miles, each ring represents one mile from the center out. 
Touch 
 and  to zoom out and zoom in. 
						

							GPSMAP 700 Series Owner’s Manual 55
Radar 
Radar Display Modes
The Radar screen has four standard operating modes. Each mode is available for use only with a compatible 
radar.
• Cruising mode—shows a full-screen image of the gathered radar information.
•  Harbor mode—intended for use in inland waters, this mode works best with short-range radar signals (2 
nm or less). 
•  offshore mode—intended for use in open waters, this mode works best with long-range radar signals. 
•  Sentry mode—allows you to put the radar into timed-transmit mode, in which you can configure a radar 
transmit and standby cycle to conserve power. You can also enable a guard zone in Sentry mode, which 
identifies a safe zone around your boat.
Radar Mode Compatible Radar
GMR 20, 21, 40, 41 GMR 18, 18 HD, 
24, 24 HDGMR 404, 406
GMR 604 xHD, 606 xHD, 
1204 xHD, 1206 xHD
Cruising X XX
Harbor X
Offshore X
Sentry X XXX
Cruising Mode
Cruising mode is the standard radar operation for the GMR 20, 21, 40, 41, 18, 18 HD, 24, 24 HD, 404, and 
406 radar. 
NoTe: If you switch from Sentry mode to Cruising mode, the radar switches to full-time transmission and 
disables all guard zones.
Showing Cruising Mode
From the Home screen, select  Radar > Cruising.
A full-screen image of the gathered radar information appears. Your position is in the center of the screen, 
and the range rings 
➊ provide distance measurements. The distance between rings ➋ and the radar range ➌ 
are shown on the bottom of the screen.
Cruising Mode
➋➌
➊ 
						

							56 GPSMAP 700 Series Owner’s Manual
Radar
Harbor Mode
Harbor mode is the standard radar operation for use in inland waters, with a GMR 604 xHD, 606 xHD, 1204 
xHD, or 1206 xHD radar. Harbor mode works best with short-range radar signals (2 nm or less).
NoTe: If you switch from Sentry mode to Harbor mode, the radar switches to full-time transmission and 
disables all guard zones.
Showing Harbor Mode
From the Home screen, select Radar > Harbor.
Harbor Mode
Offshore Mode
Offshore mode is the standard radar operation for use in open waters, with a GMR 604 xHD, 606 xHD, 1204 
xHD, or 1206 xHD radar. 
NoTe: If you switch from Sentry mode to Offshore mode, the radar switches to full-time transmission and 
disables all guard zones.
Showing Offshore Mode
From the Home screen, select Radar > offshore.
Offshore Mode