Lowrance Electronic 310 Users Manual GlobalNav Owners

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2015-02-05

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GlobalNav 310

INSTALLATION AND
OPERATION INSTRUCTIONS

Copyright © 1997 Lowrance Electronics, Inc.
All rights reserved.
GlobalNav 310™ is a trademark of Lowrance Electronics, Inc.
Lowrance® is a registered trademark of Lowrance Electronics, Inc.
WARNING!
USE THIS UNIT ONLY AS AN AID TO NAVIGATION. A CAREFUL
NAVIGATOR NEVER RELIES ON ONLY ONE METHOD TO OBTAIN
POSITION INFORMATION.
Never use this product while operating a vehicle.

CAUTION
When showing navigation data to a position (waypoint), this unit will show
the shortest, most direct path to the waypoint. It provides navigation data
to the waypoint regardless of obstructions. Therefore, the prudent navigator will not only take advantage of all available navigation tools when travelling to a waypoint, but will also visually check to make certain a clear,
safe path to the waypoint is always available.
The storage temperature for your unit is from -4 degrees to +167 degrees
Fahrenheit (-20 to +75 degrees Celsius). Extended storage temperatures
higher or lower than specified will cause the liquid crystal display to fail.
Neither this type of failure nor its consequences are covered by the warranty. For more information, consult the factory customer service department.
All features and specifications subject to change without notice.
Lowrance Electronics may find it necessary to change or end our policies, regulations, and special offers at any time. We reserve the right to
do so without notice.
All screens in this manual are simulated.

INTRODUCTION .......................................................................................................... 1
INSTALLATION .............................................................................................................. 2
BRACKET INSTALLATION ....................................................................................... 2
POWER CABLE ....................................................................................................... 4
ANTENNA ................................................................................................................ 5
SURFACE MOUNT ............................................................................................. 5
MAGNET MOUNT .............................................................................................. 6
POLE MOUNT .................................................................................................... 6
KEYBOARD .................................................................................................................. 7
OPERATION ................................................................................................................. 8
TURNING POWER ON ............................................................................................ 8
MENUS .................................................................................................................... 8
FINDING YOUR POSITION ..................................................................................... 8
COLD START ...................................................................................................... 8
INITIALIZATION .................................................................................................. 9
POSITION/NAVIGATION DISPLAYS ....................................................................... 11
NAVIGATION SCREENS .................................................................................... 12
PLOTTER SCREENS .............................................................................................. 14
PLOTTER CURSOR ........................................................................................... 15
PLOTTER OPTIONS .......................................................................................... 15
PLOT TRAIL ................................................................................................... 16
PLOTTER ORIENTATION .............................................................................. 16
PLOTTER UPDATE RATE .............................................................................. 17
GRID LINES ................................................................................................... 18
ICONS ................................................................................................................ 18
PLACE ICON - CURSOR LOCATION ............................................................ 18
ERASE ICONS ............................................................................................... 19
WINDOWS ............................................................................................................... 20
SPECIAL WINDOWS .......................................................................................... 20
SATELLITE INFORMATION SCREEN ........................................................... 20
COURSE DEVIATION INDICATOR (CDI) ...................................................... 21
CLOCK ........................................................................................................... 22
CLOCK SET ................................................................................................... 22
CLOCK ALARM .............................................................................................. 22
TIMERS .......................................................................................................... 23
REPROGRAM BOXES ............................................................................................ 23
WAYPOINTS ............................................................................................................ 24
SAVING YOUR PRESENT POSITION (QUICK SAVE) ...................................... 24
SAVING CURSOR POSITION ............................................................................ 25
SAVING YOUR PRESENT POSITION ................................................................ 25
EDIT WAYPOINT LAT/LON ................................................................................. 26
EDIT WAYPOINT NAME ..................................................................................... 27
MOVE A WAYPOINT ........................................................................................... 27
DISTANCE BETWEEN WAYPONTS ................................................................... 28
WAYPOINT OPTIONS ........................................................................................ 29
DELETE A WAYPOINT ....................................................................................... 29
ROUTES .................................................................................................................. 30
CREATE A ROUTE ............................................................................................. 30
SELECT WAYPOINTS FOR ROUTE ............................................................. 31
FINISHING THE ROUTE ................................................................................ 32
DELETE A WAYPOINT FROM ROUTE .......................................................... 32
GLOBALNAV 310 WAYPOINT DETAIL .......................................................... 32
FOLLOW A ROUTE ............................................................................................ 32
SKIP A WAYPOINT IN A ROUTE ................................................................... 34
DELETE A ROUTE ............................................................................................. 34

NAVIGATION ................................................................................................................. 35
NAVIGATE TO A WAYPOINT ................................................................................... 35
NAVIGATE TO A CURSOR LOCATION ................................................................... 35
NAVIGATING TO A WAYPOINT USING THE PLOTTER ......................................... 36
CANCEL NAVIGATION ............................................................................................ 36
SYSTEM SETUP .......................................................................................................... 37
SPEAKER ON/OFF ................................................................................................. 37
CONTRAST ADJUST .............................................................................................. 37
UNITS OF MEASURE.............................................................................................. 37
POSITION FORMAT ................................................................................................ 38
NMEA/DGPS ........................................................................................................... 39
NMEA OUTPUT .................................................................................................. 40
DGPS .................................................................................................................. 40
SERIAL COMMUNICATION SETUP .................................................................. 42
RESET OPTIONS .................................................................................................... 42
SYSTEM INFO ......................................................................................................... 43
GPS SETUP ................................................................................................................. 43
EXECUTE GPS COLD START ................................................................................ 43
DATUM ..................................................................................................................... 44
PCF ....................................................................................................................... 45
POSITION PINNING ................................................................................................ 46
ALARMS ....................................................................................................................... 46
MESSAGES .................................................................................................................. 47
BACKLIGHT .................................................................................................................. 47
REPROGRAM WINDOW GROUPS ............................................................................. 48
RESET WINDOW GROUPS .................................................................................... 49
SIMULATOR .................................................................................................................. 50
STARTING POSITION ............................................................................................. 50
USER ARROW KEYS TO STEER ........................................................................... 50
DEFINITION OF TERMS/ABBREVIATIONS ................................................................. 51
WINDOW GROUPS ...................................................................................................... 52
UPS RETURN SERVICE .............................................................................................. 54
WARRANTY STATEMENT ............................................................................................ 56
ANTENNA MODULE TEMPLATE ................................................................................. 58
HOW TO OBTAIN SERVICE - INTERNATIONAL ............................. INSIDE BACK COVER
HOW TO OBTAIN SERVICE - U.S.A. ONLY .................................................. BACK COVER

Congratulations!
You have purchased one of the finest 12-channel GPS receivers Lowrance ® has ever made. With its large LCD screen, easy to use menus,
and outstanding performance, we think you’ll be happy with your GlobalNav
310™ for many years.
GPS works from satellites that transmit information to the world at very
high frequencies. One disadvantage to this frequency is that it’s “line-ofsight”. In other words, the signals don’t bounce around like your local
radio or television. If you don’t have a clear view of the sky, or if you’re
inside a metal boat dock or garage, the unit probably won’t be able to pick
up the signals from the satellites. This is common among all GPS receivers.
Like most GPS receivers, your GlobalNav 310 doesn’t have a compass
or any other navigation aid built into it. It relies solely on the signals from
the satellites to determine its position. Speed, direction of travel, and
distance are all calculated from position information. Therefore, in order
for it to determine the direction you’re travelling, you must be moving, and
the faster - the better. This is not to say the unit won’t work at walking
speeds - it will. But the faster you travel, the easier it is for the unit to
determine your direction.
Another factor that influences the GPS’ position and navigation capabilities is called selective availability or S/A. This is small errors purposefully
injected into the transmitted signal from the satellites. The government
does this to degrade the system’s accuracy to civilian and foreign users.
Even with S/A, GPS is the most accurate navigation system ever invented
on such a large scale. The Government’s accuracy specification is 100
meters horizontally and 150 meters vertically 95% of the time. In other
words, the position shown on your GlobalNav 310 could be up to 100
meters in any direction from your actual position, and the altitude could
be plus or minus 150 meters from what’s shown on the screen, 95% of
the time.
There are two ways around the S/A problem. One is to have the government simply turn it off. In fact, there is growing pressure on them to do
that, but it’s not likely to happen anytime soon. The other method is to
purchase a DGPS receiver and connect it to your GlobalNav 310. A DGPS
receiver (commonly called a beacon receiver), picks up correction signals broadcast from ground stations. The GlobalNav 310 takes these
corrections and applies them to the position and altitude screens, giving
you much better accuracy.

Even with S/A on, and without a DGPS receiver, your GlobalNav 310
gives you outstanding position and navigation information.
Please sit down with the unit and this manual and familiarize yourself with
them before using the GlobalNav 310 in the “real world”. A simulator is
built in, which lets you practice.

INSTALLATION
INSTALLATION - Bracket
You can install the GlobalNav 310 on the top of a dash or from an overhead
with the supplied bracket. It can also be installed in the dash with an
optional IDA-3 mounting kit. A swivel bracket is included that converts the
GlobaNav 310's gimbal bracket to a swivel mount. You can mount it in any
convenient location, provided there is clearance when it’s tilted for the best
viewing angle.
Bracket Installation - No Swivel
Holes in the bracket’s base allow wood screw or through bolt mounting.
It may be necessary to place a piece of plywood on the back side of thin
panels to reinforce the panel. Make certain there is enough room behind
the unit to attach the power and antenna cables.
Drill a hole in the dash for the power and antenna cables. The best location
for this hole is immediately under the gimbal bracket. This way, the bracket
covers the hole. The smallest hole the power and antenna cable connector
can pass through is 3/4". Route the cables to the unit by passing them
through the hole from under the dash. Slide the bracket over the hole, then
route the cables out the slot in the back of the bracket. Finally, fasten the
bracket to the dash.
Bracket Installation - With Swivel
1. Place the swivel bracket on the dash or console in the desired mounting
location. Make certain there is enough room for the unit to rotate. Using
the swivel bracket’s base as a template, mark the four mounting holes
for drilling. Remove the bracket and drill the holes in the mounting
surface for the #10 mounting screws.
2. Install the large locknut into the bottom of the swivel bracket. Place the
swivel bracket onto the mounting surface and attach it using the four
supplied #10 screws.
3. Pass the large screw through the gimbal bracket and the swivel
bracket. Thread it into the large locknut and tighten it. Don't tighten it
too tight, or the gimbal bracket won't swivel.
2

Attach the GlobalNav 310 to the gimbal bracket using the supplied gimbal
knobs and washers as shown below.

GlobalNav 310
Gimbal Bracket
Washer

Gimbal Knob

POWER
The GlobalNav 310 will operate from a 12-volt DC system. (9 to 15 volts
DC.) You can connect the power cable to an accessory buss under the
dash, however, to keep electrical noise interference to a minimum, we
recommend you wire the power cable directly to the battery through the
supplied 2-amp fuse.
CAUTION!
Do not connect this product to a power source without using a fuse!
Failure to use the fuse can cause damage to your unit and will void the
warranty.
Follow the wiring diagram below. If the wires on the power cable are not
long enough to reach the battery, use 18 gauge wire to lengthen the
power cable.
The power cable’s green wire is used to receive data from a DGPS receiver. The white wire is used to transmit data to a DGPS receiver or
other electronic equipment. If you are not connecting the GlobalNav 310
to another device, tape the ends of these wires and secure them where
they will not short to one another. See the NMEA/DGPS section in this
manual for more information.
(Note: If your power cable has six wires, tape and secure the extra wires,
also. They are not used on this product.)
TO
GLOBALNAV 310

GLOBALNAV 310
RECEIVE
(NMEA)

RED

GREEN

GLOBALNAV 310
TRANSMIT
(NMEA)

2-AMP
FUSE

WHITE
BLACK

12-VOLT
BATTERY

ANTENNA
The GlobalNav 310’s antenna can be mounted on any flat surface, provided you have access behind the surface for the mounting screws. A
magnet is also supplied that can be epoxied to the bottom of the antenna, allowing it to be used on off-road vehicles. A pole mount adapter
lets you mount the antenna on a pole or swivel mount.
ANTENNA INSTALLATION
Surface Mount
The antenna can be easily installed on any flat surface that is at least 90
mm (3 1/2”) wide. Make certain that a clear view of the sky is available at
the selected location. Since the GPS signals travel “line-of-sight”, nearly
anything blocking the antenna can potentially obstruct the unit from finding a satellite.
Once you’ve determined the mounting location, use the template on page
51 in this manual to drill the holes for the screws. The screws, supplied
with the GlobalNav 310, are 4mm x 30mm. (about 1 1/8” long). Drill 4.75
mm (3/16”) holes for the mounting screws. If you route the cable through
the mounting surface, you’ll need to drill a 25 mm (1”) hole for the cable.
There is a notch in the antenna housing that allows the cable to pass
through to the outside, instead of routing it through the mounting surface.

After drilling the holes, pass the o-ring over the antenna cable and press
it into the groove on the bottom of the antenna housing. Now attach the
antenna to the mounting surface, using 4mm screws and the supplied
lock washers. Route the cable to the GlobalNav 310 and the antenna
installation is finished.
Magnet Mount
A magnet lets you temporarily mount the antenna on any ferrous metal
surface. (such as a car) To use the magnet, simply epoxy it to the bottom
of the antenna, using the epoxy supplied with your GlobalNav 310. Carefully follow the instructions on the epoxy package and apply it to the
magnet. Then carefully press the magnet to the bottom of the antenna
housing. After the epoxy cures (in about 30 minutes), the antenna is
ready for use.

MAGNET

Pole Mount
The antenna attaches to the pole mount
adapter with the supplied 4 mm screws.You
can route the antenna cable through the
slot in the side of the antenna, or pass it
down through the pole mount adapter. A
slot next to the threads in the pole mount
adapter places the cable next to the pole
where it can be easily routed down the pole
to the GlobalNav 310. The threads on the
pole mount adapter accept a standard
marine antenna mount.
POLE MOUNT
6

KEYBOARD
The keyboard has twelve keys. The arrow keys are tied to most of the
features, letting you easily move the plotter’s cursor, navigate through
the menus, make selections from menus, and other tasks.

Z-IN

MODE

WPT

ENT

Z-OUT

EXIT

PWR

The WPT key lets you create, save, and recall waypoints and routes. The
MODE key switches the unit between the three major displays: windows,
navigation, and plotter. To select different features, or to modify functions, press the MENU key. The Z-IN and Z-OUT keys zoom-in and zoomout your view on the plotter screen. The ENT and EXIT keys let you enter
or erase selections. The PWR key turns the GlobalNav 310 on and off.
Note: To prevent an accidental power shutdown, you must hold the PWR
key down for a few seconds in order to turn the unit off.

OPERATION
Turning Power On
To turn the GlobalNav 310 on, simply
press the PWR key. A screen similar to
the one at right appears. Read the message on the screen, then press the EXIT
key to erase it. The GlobalNav 310 is now
ready for use.

MENUS
Most of the Lowrance View’s adjustments and features are found on
“menus”. Pressing the MENU key lets you view the menus. Different menus
items are added to the basic list, depending on which mode (plotter, navigation,
or windows) the unit is in. This gives you
the features that are specific to the mode
you are in, but also has items that are
used on all modes.
Using the arrow keys moves the black
box to highlight different menus on the
list. Pressing the right arrow key selects
the menu.
To erase a menu, press the EXIT key.

Finding Your Position
Cold Start
When the GlobalNav 310 is turned on for the very first time, it doesn’t
know where it is, nor what the local time or date is. If you tell it your
position, time, and date, the unit will take much less time to lock-on to the
satellites and give you a fix or position.
However, if you don’t want to push buttons at this time, that’s fine. The
GlobalNav 310 will lock onto the satellites and give you a position without
any input from you. This is called a “cold-start”. It simply means that the
unit is searching without help for the satellites that are in orbit. A coldstart can take up to 2 minutes to acquire enough satellite data to determine your position, although it typically takes less time than that.

Once it locks on to the satellites and finds your position, it stores the
satellite data in its memory. The next time you use the unit, it should take
much less time to lock on.
To use your GlobalNav 310, first make certain you have a clear view of
the sky, free from any obstructions such as trees, carport, or a covered
boat dock.
Press the PWR key. Read the message
on the screen, then press the EXIT key
to erase the message. A screen similar
to the one at right appears.
This is windows group “A”. Your track
(TRK), or direction of travel is shown in
the upper right corner of this screen.
Bearing to a waypoint (BRG), Course
over ground (CRS), and cross track error (XTK) are all shown on this screen. You must recall a waypoint to use
the bearing, course, and cross track error windows. As you wait for it to
find your position, you’ll see numbers flashing on the display. Anytime
you see flashing numbers, it means the GlobalNav 310 does not have a
position! Do not rely on any data that is flashing! When the numbers stop
flashing, the unit has locked on to the satellites and the position is good.
That’s all you have to do to find your position. All time displays may not be
correct when the cold start method is used. See the initialization section
for details on changing the time.

Finding Your Position
Initialization
A cold-start as described above can take over 5 minutes to find your
position. A faster method is to initialize the GlobalNav 310 manually. To
do this, first press the PWR key. Next,
read the messages on the screen and
press the EXIT key to erase them. Now
press the MENU key.
Press the up or down arrow keys until
the “GPS SETUP” menu is highlighted
as shown at right. Now press the right
arrow key. The screen shown at the top
of the next page appears.
9

Using the down arrow key, highlight the
“Initialize GPS Receiver” menu, then
press the right arrow key. The screen
shown below appears.

This is the GPS initialization screen. The
position, altitude, time, and date the
GlobalNav 310 is currently using to find
the satellites is shown at the bottom of
this screen. Changing these values to
your local position and time will speed
the position lock.

To change the position, press the right
arrow key while the “EDIT LAT/LON” box
is highlighted. The screen shown at right
appears.
If your latitude is south, press the up or
down arrow key to change it. If it is north,
press the right arrow key to move the
change box to the first number in the latitude. Now press the up arrow
key to increase the number or the down arrow key to decrease it. Once
the first number in the latitude is set,
press the right arrow key once to move
to the next number in the latitude.
Keep pressing the arrow keys until the
latitude and longitude are set to your local position. (Note: This position does not
have to be very accurate. If you can get
it within one degree of your actual position, that will be fine.) When it’s set, press
the ENT key.The GlobalNav 310 accepts
your entry and returns to the GPS setup menu.
10

Now change the local time and date if
they’re incorrect on this screen. (Don’t
worry about altitude.) When everything
is acceptable, press the EXIT key repeatedly to return to a mode screen. The
GlobalNav 310 will instantly use the data
you entered to find the satellites in the
sky. (The unit knows which satellites will
be available at the position, date, and
time you entered. Therefore, it will only
look for those satellites, making the search time much shorter than a
cold start which looks for all of the satellites until it finds three.)
Once the GlobalNav 310 finds and locks on to three satellites, it stops
flashing the numbers on the display. (Note: Altitude will still flash until the
unit locks on to the fourth satellite. It takes four satellites to determine
altitude.)

IMPORTANT!
If the data shown in digital numbers on any screen is flashing, it
means that data is invalid. DO NOT RELY ON ANY NUMBERS THAT
ARE FLASHING! Usually, this happens when the GlobalNav 310
has lost its lock on the satellites. The data that is flashing was the
last known when the unit lost its navigational capability.

DO NOT NAVIGATE WITH THIS UNIT UNTIL THE DATA STOPS
FLASHING!
POSITION/NAVIGATION DISPLAYS
The GlobalNav 310 has navigation, plotter, and windows group modes.
These screens were designed to show
data that is used most often.
The three default displays are shown on
the next page. To change displays, simply press the MODE key. A screen similar to the one at right appears. Now press
the up or down arrow keys to change
modes. (The windows display is shown
11

NAV-1

PLOT-1

GROUP A

as "GRP" (groups). For example, Group A is the first windows group on
the MODE menu.) Press the right arrow key to see more screens on
each mode. When the desired screen appears, press the EXIT key to
clear the menu.
Note: For a list of abbreviations used on the displays, see the back of this
manual.
Navigation Screens
There are two navigation screens. Nav screen number one shows a graphical view of your trip, the other screen shows all navigation details in large
digital numbers.You can customize the navigation screens to show different data than the ones chosen by Lowrance. See the “Customize Screen”
section for more details.
Nav Screen #1
This screen is dominated by a compass rose (See the screen at the top
of the next page.) Your position is in the center of the circle, designated
by an arrow that always points straight up. Your track (direction of travel)
is indicated by an arrow pointing down toward the compass rose at the
top center of the screen.Your track in digital numbers is also shown to the
right of the arrow. On the screen at the top of the next page, the track is
12

348°. The line extending behind the arrow in the center shows your track history, or path you’ve travelled.
Your speed over ground or Ground
Speed (GS) shows in the digital box to
the right of the circle.
The screen looks like this when you’re
not navigating to a waypoint. (See page
35 for information on waypoint navigation.) If you navigate to a waypoint, the
screen looks like the one below.
The bearing to the destination waypoint
is shown in the upper left corner of the
screen. Bearing is also shown by the
large arrow pointing up to the compass.
The lines on either side of the present
position arrow show the cross track error range. In other words, (using the
screen above as an example) if the arrow crosses the line on either side, you
are .10 miles to the left or right of the
desired course.
A circle depicting your destination appears on the screen as you approach the
waypoint.
The digital boxes on the screen’s right
side show (from top to bottom) your distance to go to the destination (DIS), ground speed (GS), estimated time
en route (ETE), and course (CRS).
Course (CRS) is the bearing from your starting location to your destination. (Remember, course has nothing to do with your present position,
except for your starting location.) It’s shown as a dotted line on the NAV
1 display. This is shown as a reminder so that if you deviate from your
original course, you can easily return to it. (A “course” is a proposed path
over the ground. A “track” is your actual path over ground.)

Nav Screen #2
The navigation screen shows navigation
information in large digital numbers. To
view this screen, press the MODE key,
then press the up arrow key until the
black box surrounds the “NAV 1” label.
Now press the right arrow key. A screen
similar to the one at right appears. Press
the EXIT key to erase the mode menu.
This screen is composed of eight digital display boxes, showing your
track (TRK), and ground speed (GS). The other boxes show navigation
data when a waypoint is recalled, including bearing to the waypoint (BRG),
course (CRS), Altitude (ALT), distance to waypoint (DIS), velocity made
good (VMG), and cross track error (XTK).
Plotter
The plotter lets you see your course and track from a “birds-eye” view. If
you’ve recalled a waypoint, the plotter show your staring location, present
position, and destination. However, you don’t have to recall a waypoint to
use the plotter.
To use the plotter, simply press the
MODE key, then press the up or down
arrow keys until the “Plot” label is
higlighted. Press the EXIT key to erase
the mode menu. A screen similar to the
one at right appears. This is plot-1. The
diamond flashing in the center of the
screen is your present position. The solid
line extending from the diamond is your
track, or path you’ve travelled. The
plotter’s range is shown in the lower left corner of the screen. In this
example, the plotter’s range is two miles from the left edge of the screen
to the right.
There are two different plotter screens
available. Map screen number 1 shows
by default. Your current position displays
at the center of the screen by a cross
surrounded by a flashing diamond.
To view the other plotter screen, press
the MODE key. Press the up or down ar14

row key to move the black box to the "PLOT" label. Now press the right
arrow or left arrow key to select plot 2. This screen (as shown at the
bottom of the previous page) has navigation data displayed on the right
side of the screen in digital numbers. This data is active whenever you’ve
recalled a waypoint. Press the EXIT key to erase the mode menu.
This screen shows ground speed (GS), track (TRK), course (CRS), and
cross track error (XTK).
Use the Z-IN and Z-OUT keys to enlarge or reduce the plotter area. This
changes the plotter’s range. The available ranges are: 0.1, 0.15, 0.2, 0.3,
0.4, 0.6, 0.8, 1, 1.5, 2, 3, 4, 5, 6, 8, 10, 15, 20, 30, 40, 60, 80, 100,150,
200, 300, 400, 600, 800, 1000, 1500, 2000, 3000, and 4000 miles.
Cursor
Pressing an arrow key while the plotter
is on shows two dotted lines that intersect at your present position. These dotted lines are called a “cursor” and have
a variety of uses.
You can move the cursor around the display by pressing the arrow keys in the
direction you want it to move. This lets
you view different areas of the plotter,
away from your present position. When
it’s turned on, the zoom-in and zoom-out keys work from the cursor’s
position - not the present position, so you can zoom in on any detail,
anywhere while navigating. The latitude/longitude of the cursor shows in
the box at the top of the plot-1 screen whenever the cursor is activated.
The cursor is also used to place and erase icons and waypoints.
Press the EXIT key to erase the cursor.

PLOTTER OPTIONS
The GlobalNav 310 lets you customize
the plotter using the “plotter options”
menu. To use this menu, first press the
MENU key, then use the up or down arrow keys to highlight the “Plotter Opts”
label. Finally, press the right arrow key.
The screen shown at right appears.

Record Trail On / Off
The line extending from the present position diamond on the plotter is call the
plot trail. As each dot on the trail is
placed on the screen, it’s also saved in
memory. The plot trail recording can be
turned off, if desired. To turn it off, press
the up or down arrow key until the
“Record Trail” menu is highlighted and
press the left arrow key. Press the EXIT
key to return to the main menu.
Clear Current Plot Trail
To erase the plot trail extending from your present position, highlight the
“ClearPlot Trail” menu, then press the right arrow key. A message box
appears, asking you if you really want to erase the plot trail. Follow the
directions on this message box. The GlobalNav 310 returns to the plotter
screen after the message box clears.
Plotter Orientation
Normally, the GlobalNav 310 shows the plotter with north always at the
top of the screen. This is the way most maps and charts are printed on
paper. This is fine if you’re always travelling due north. Waypoints you see
to your left corresponds to the left side of the plotter, to your right is
shown on the right side of the plotter, and so on.
However, if you travel any other direction, the plotter doesn’t line up with
your view of the world.
To correct this problem, this unit has a track-up mode that rotates the
plotter as you turn. Thus, what you see on the left side of the screen
should always be to your left, and so on. It also has a course-up mode
that keeps the plotter at the same orientation as your initial bearing to the
waypoint.
In the examples shown at right and on
the next page, we're travelling southeast
(about 210° magnetic). In the north-up
view (at right), the present position indicator appears to move towards the lower
left corner of the screen. The anchor icon
shown on the left side of the screen is
actually on our right. North is always at
the top center of this screen.
16

NORTH-UP MODE

In the track-up view at right, the present
position moves straight towards the top
of the display. As you can see, the anchor icon is now shown in its proper orientation - to our right. A "N" shows to
help you see which direction is north
when the track-up mode is on. Remember, in the track-up mode, the screen rotates as you change direction. It always
keeps your direction of travel (track)
heading towards the top of the screen.

TRACK-UP MODE

In the course-up mode shown at right,
the screen is locked into your original
bearing to the recalled waypoint, regardless of your track.
To select the desired mode, highlight the
“ORIENTATION” label on the “Plotter
Options” menu, then press the left or right
arrow keys until the desired mode appears. Press the EXIT key to leave this menu

COURSE-UP MODE

Plotter Update
The plotter places a dot on your trail as you move. It determines when to
place a dot depending on either time or distance. By default, it places a
dot every three seconds.
To change the update method from time
to distance, highlight the “Update By”
label, then press the right arrow key. This
moves the label from “TIME” to “DIST”.
If you want to change the update time
or distance, simply highlight the desired
menu, then press the left or right arrow
keys until the desired setting appears.
Press the EXIT key to return to a navigation, plotter, or windows screen.

Grid Lines
The GlobalNav 310 can place grid lines
on the plotter to help you see your position, or the position of waypoints and
icons.
To do this, highlight the “Grid Lines” label on the “Plotter Opts” menu, then
press the right arrow key to turn them
on. Press the EXIT key to exit this menu.
A plotter screen similar to the one at right
appears. The grid lines appear as vertical and horizontal dashed lines.
ICONS
The GlobalNav 310 has fifteen symbols or “icons” available. These icons
can be placed anywhere on the plotter screens. These can be used to
mark fishing spots, boat ramps, rest stops, or whatever. You can place an
icon at your present position, or at the cursor location.
Place Icon - Present Position
To place an icon at your present position, simply press the ENT key. The
screen shown at right appears. Use the arrow keys to move the black box
to the desired icon. Now press the ENT key. The plotter screen appears
with the icon you selected placed at your position when you first pressed
the ENT key, not your present position.

Place Icon - Cursor Location
To place an icon at cursor's location, first
use the arrow keys to move the cursor to
the position that you want to place the
icon, as shown at right. Next, press the
ENT key. Now select the desired icon using the arrow keys. When it's selected,
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press the ENT key. The plotter screen
reappears with the icon at the cursor's
location. Press the EXIT key to erase the
cursor. On the screen shown at right, the
large fish icon was selected and placed
at the cursor location.

Erase Icons
To erase an icon from the screen, first
press the MENU key, then select the
“WPT/Icon Opts” menu. A screen similar to the one at right appears.
There are three methods used to erase
icons from the screen. You can delete all
of the icons, regardless of their position
on the display, delete all of the icons of
a certain type, or selectively erase individual icons.
To erase all of the icons, highlight the “Delete All Icons” menu, then
press the right arrow key. A message appears, asking you if you want to
delete all icons. Press the right arrow key to erase them. The unit returns
to the plotter screen with all icons deleted.
To remove only icons of a certain type, highlight the “Delete Icons By
Type” label. Press the right arrow key. The icon selection menu appears.
Use the arrow keys to highlight the icon style that you wish to erase.
Press the ENT key when you’re ready to erase the icons. A message
appears, asking you if you want to delete the icons of that type. Press the
left arrow key to erase them. The unit returns to the plotter screen with all
icons of the type you selected erased.
To remove only certain icons, highlight
the “Delete Icons From Plotter” label.
Press the right arrow key. The unit returns to the plotter screen with the cursor centered on your present position as
shown at right. Use the arrow keys to
move the cursor to the icon on the map
that you wish to erase. Press the ENT
19

key to erase the icon. If you wish to delete another icon, move the cursor
over it and press the ENT key. When you’re finished, press the EXIT key
to erase the cursor.
WINDOWS
This feature gives you 15 different groups of windows so you can use the
best navigation display for your situation.
To use the windows feature, press the MODE key, then highlight the
“GROUP A” label as shown below. Group “A” is visible in the background
when you switch to the windows groups. To view each group, simply press
the right or left arrow key while the mode menu is showing. Each group
shows in the background as you press the arrow keys. When you see the
group you want to use, simply press the EXIT key to erase the mode
menu.
Special Windows
Although most of the windows used in the GlobalNav 310 are self-explanatory, there are several windows that have special features or can be
used in unique ways. The following section describes these windows.
Satellite Information Screen (Group A)
This screen shows technical information about the status of the GPS
receiver.The receiver has twelve channels. Data for each channel is shown
as bar graphs on the right side of the display. Every satellite in the constellation has a number assigned to it, called the PRN. The bar graph is
above each satellite’s number. The higher the bar on the graph, the better
the signal is being received from the satellite.
Each satellite is also shown on the circular graph on the left side of the
screen. This shows you not only which satellites are in your area, but also
their direction from your position, and their elevation (distance above the
horizon.) The small inner circle represents 45° above the horizon and the
large outer circle represents the horizon. A satellite is straight above you
when it is at the intersection of the horizontal and vertical lines that pass
through the circles.

The FIX number in the lower left corner
of the screen show the quality of fix. If
the FIX is 9, then it's the best you can
get. A FIX of 1 is the worst.

COURSE DEVIATION INDICATOR
(CDI)
The CDI shows your distance to the left
or right of the desired course. You must
recall a waypoint or run a route to use
the CDI. The arrow in the center of the
box shows the direction to the destination. For example, if you’re travelling
straight towards the destination, the arrow points straight up. If you turn to the
right, the arrow points to the left, showing that the destination is to your left.The smaller arrows pointing down
on each side show the CDI’s range. The default is 0.25 mile. The small
vertical bar beneath the arrow shows the
distance off course and represents the
course line. If the bar moves to the left,
then you are too far to the right of the
desired course line, and vice-versa. On
the indicator shown at right, we are about
0.1 mile to the right of the desired course.
(Each dotted vertical line represents
0.175 mile.) You can adjust the CDI’s
range through the “ALARMS/CDI” menu.
Using the CDI with a map helps you visualize your position in relation to the course. The CDI is on several of the
310’s windows and can be programmed to show on any window group.

CLOCK
Whenever a clock, timer, or alarm is showing on a display, new items
appear in the list when you press the MENU key. These items let you set
the clock’s time, alarms, or the timers.
Clock Set
If the time shown on the clock display is
not your local time, change it using the
“Clock Set” function. To do this, press the
MENU key, then highlight the “Set Clock”
label. Press the right arrow key. The
screen at right appears.
Using the right and left arrow keys, move
the black box to the first number in the
time that you want to change. Now press
the up or down arrow keys until the desired number shows. Continue until
the time shown in the display is correct, then press the ENT key. This
enters the new time and clears the set clock menu.
Clock Alarm
You can set the alarm on group “J” (that
works just like an alarm clock), by using
the “Clock Alarm” menu. To set this alarm,
press the MENU key while group “J” is
showing, then highlight the “Clk Alm Set”
label. Press the right arrow key. The
screen at right appears. Using the right
and left arrow keys, move the black box
to the first number in the time that you
want to set. Now press the up or down
arrow keys until the desired number shows. Continue until the time shown
in the display is correct, then press the ENT key. The alarm is now set.
To turn the alarm on, press the MENU key, then highlight the “CLK ALM”
menu. Press the right arrow key. The alarm is now activated.
When the alarm goes off, an audible tone sounds along with a flashing
message on the screen. Press the EXIT key to turn the alarm off.
Note: The GlobalNav 310 must be on in order for the alarms to work. In
other words, if you set the alarm to go off at 7:00 a.m., then the GlobalNav
310 will have to be on at 7:00 a.m., also.

Timers
The GlobalNav 310 has two timers built in. One is a countdown timer and
the other is a count-up timer. The countdown timer counts down from the
time you put in to zero. The count-up timer starts at zero and counts up to
the time you entered.
To set either timer, first switch to a window group with a timer. Next, press the
MENU key, then highlight the desired
timer set menu. In this example, we’re
setting the countdown timer. Now press
the right arrow key. A screen similar to
the one at right appears.
Using the right and left arrow keys, move
the black box to the first number in the
time that you want to set. (The time is in hours, minutes, and seconds)
Now press the up or down arrow keys until the desired number shows.
Continue until the time shown in the display is correct, then press the
ENT key.
To start the timer, press the MENU key, then move the black box to the
“Dn Tmr Off On” label. Press the right arrow key to start the timer. The
timer continues counting until you stop it. If you turn the up timer’s alarm
on (press the right arrow key when the black box is on the (Up ALM...Off/
On label), it will sound a tone when it reaches the time you entered in the
up timer set menu. Press the EXIT key to silence the alarm.
You can reset either alarm to the time you originally set by pressing the
MENU key, then moving the black box to either the “Up Tmr Reset” or
“DN Tmr Reset” label, then press the right arrow key.
REPROGRAM BOXES
The digital boxes on the PLOT-2 and both NAV screens can be reprogrammed. The changes you make to the screen will remain in memory,
even if all power is removed from the unit. You can, however, return the
boxes to the factory settings from the “Preset Groups” item in the “System Setup” menu.
To customize a screen, first switch to the screen that you want to customize. Next, press the MENU key, then highlight the “Reprgrm Boxes”
menu. Press the right arrow key. The screen shown at the top of the next
page appears. In this example, we’ll change Plot-2.

This is the plot-2 edit screen. The “BRG”
box in the upper right corner flashes,
which means it’s ready for change. If you
don’t want to change this box, simply
press the up or down arrow key to move
to the box that you do want to change.
In this example, we will change the BRG
box to ground speed, or GS. To do this,
simply press the left or right arrow key
while the box is flashing. The box
changes each time the arrow key is
pressed. When the desired box appears,
then you can change another box or
save your changes by pressing the ENT
key. If you want to leave this screen without saving the changes, simply press the
EXIT key. In this example, we simply
changed the BRG to GS, then pressed
the ENT key. The screen at right is the
final version. Use this same method to
change the NAV screens.
WAYPOINTS
The GlobalNav 310 gives you the capability of creating your own database of locations, called “waypoints”.. You can save your present position, cursor position, or enter a latitude/longitude and save it as a waypoint. It can store up to 250 waypoints.
Saving Your Present Position as a Waypoint (Quick Save Method)
To save your present position, simply press the WPT key twice. This puts
your current position into the first available waypoint number on the list. A message appears on the display telling you
the waypoint number it just used. This
also momentarily places you in the database menu. Anytime a database menu
is showing, simply press the WPT key
once and the unit will store your present
position in the waypoint list.
Every time you save a waypoint, the date
and time are logged along with the position data. It’s also placed on the
plotter as shown above. In this case, waypoint number one was assigned
when we quick-saved our position.
24

Saving The Cursor Position as a Waypoint
When the cursor is showing on the plotter and you press the WPT key
twice, the GlobalNav 310 puts the cursor’s position into the first available
waypoint number. A message appears on the display telling you the waypoint number it just used. Wait a few seconds and the menu will clear
automatically or press the EXIT key to erase the waypoint menu.

Saving Your Present Position as a Waypoint
(Select Number Method)
The method shown above doesn’t let you
choose the waypoint number. You can
pick the waypoint number, then save
your present position. To do this, first
press the WPT key once. A screen similar to the one at right appears.
Now press the up arrow key once. This
is the waypoint number selection menu.
Press the left or right arrow keys until
the waypoint number appears that you
wish to store your present position. In
this example, we’re going to store a position as waypoint number 6.
Now press the down arrow key until the
“WPT Options” label is highlighted. Press
the right arrow key. A screen similar to
the one shown at the top of the next page
appears.

Highlight the “Save Position As” label as shown below left and press the
right arrow key when you’re at the location you wish to save. This saves
your present position under the waypoint number you selected on the
first page.

Saving Cursor Position as a Waypoint
(Select Number Method)
To save the cursor position under a specific waypoint number, first position the cursor at the desired position. Then follow the previous instructions for saving your present position as a waypoint using the select number method. Remember, the method of saving your present position and
the cursor’s position is identical.
Edit Lat/Lon
The GlobalNav 310 lets you enter any
latitude/longitude using the keyboard
and save it under any waypoint number,
from 1 to 250. You can also change any
waypoint’s position using this method. To
do this, first select the waypoint number
that you want to save a position under
from the waypoint menu. In this example, we’ll use waypoint number 10.
Next, highlight the “WPT-Options” menu
and press the right arrow key. Now highlight the “Edit Lat-Lon” menu and
press the right arrow key. The screen shown above appears. Using the
left and right arrow keys, highlight each number in the position and change
it using the up and down arrow keys. When you’re ready to save this
position and return to the waypoint screen, press the ENT key. The location you entered shows at the bottom of the screen under the waypoint
number you selected. Note: You can also use this method to change the
position of an existing waypoint.
26

WAYPOINT NAMES
The GlobalNav 310 automatically assigns the waypoint number as a name
when the waypoint position is saved.You
can find a waypoint by highlighting the
“Name” label on the waypoint menu as
shown at right. Now press the right or
left arrow keys to scroll through the
saved waypoints. Only waypoints that
have a position will show using this
method.
Edit Name
The GlobalNav 310 also lets you assign a name to each waypoint. The
name can have up to eight characters.
To name a waypoint, first select the waypoint number that you wish to name.
(Note: A waypoint must have a position
stored before you can name it.) Now
highlight the “WPT Options” label and
press the right arrow key. Finally, highlight the “EDIT NAME” label and press
the right arrow key. A screen similar to
the one at right appears.
Press the up or down arrow keys to select the first letter in the name.
Press the right arrow key to move the black box to the next position in the
name. Repeat this sequence until you’ve entered all of the letters in the
waypoint name. Press the ENT key to accept this name, the WPT key to
erase all characters in the name, or the EXIT key to leave this screen
without saving any changes.
MOVE A WAYPOINT
You can move all information from one waypoint number to another. In
this example, we’ll move all of the information in waypoint number 2 to
waypoint number 10. To do this, highlight the waypoint options menu and
press the right arrow key. Now highlight
the “Move WPT” label. Press the right
arrow key. The screen shown at right appears. The black box is resting on the
“Select From” label. Now press the down
arrow key until the number 2 appears
beneath the “FROM” label. Now press
27

the up arrow key, then the right arrow
key. This highlights the “TO” label, as
shown at right. Press the down arrow
key, then press the right arrow key until
the desired waypoint number shows in
the box. When everything on this page
is correct, press the ENT key.
Note:The names in the “From” and “To”
boxes are not the waypoint numbers they are the waypoint names. When a waypoint is moved from one number to another, the new waypoint number gets the old waypoint name.
For example, moving waypoint number 2 to waypoint number 10 deposits the name “WPT 2” in waypoint 10’s name field.
DISTANCE BETWEEN WAYPOINTS
The GlobalNav 310 can easily give you
the distance between two user
waypoints. To do this, first press the WPT
key, highlight the “Wpt Options” menu
and press the right arrow key, then highlight the “Dist Btwn WPTS” label and
press the right arrow key. The screen at
right appears.
The black box is resting on the “Select WPT B” label. Now press the down
arrow key to highlight the waypoint number label.
Once you have the first waypoint showing on the screen, then you need
to choose the other waypoint that you’re
going to measure. Move the black box
back to the “Select” label at the top of
the screen, then press the left arrow key
to select “A”. Now choose the waypoint
that you wish measure. The distance and
bearing from the first waypoint “A” to the
second waypoint “B” shows at the bottom of the screen. You can select more
waypoints to measure at this time or
press the EXIT key to erase this screen.

WAYPOINT OPTIONS
You can customize the look of the
waypoints on the plotter, or even turn
them off. To do this, first press the MENU
key, then highlight the “WPT/Icon Opts”
label. Press the right arrow key. The
screen shown at right appears.
To keep the waypoints from showing on
the plotter, simply press the right arrow
key when the “Waypoints” label is highlighted as shown above.
To change the method waypoints show on the plotter, highlight the “Display WPT” label. The default is numbers. In other words, when the waypoint shows on the plotter, it’s number appears in a box, showing both it’s
identity and location. You can change this
from number to name, or simply an empty
box (position) showing no identifiable name
or number.
Change the waypoint’s display by highlighting the “Display WPT” label, then press the
right or left arrow key until the desired display appears. When it does, press the EXIT
key. This erases the menu and returns to
the plotter with your selection.

WAYPOINT NAMES

WAYPOINT NUMBERS

WAYPOINT POSITION

Delete a Waypoint
To erase all of the information in a waypoint, simply press the WPT key,
then select the waypoint you want to delete. Now highlight the “WptOptions” label and press the right arrow key. Finally, highlight the “Delete
WPT” label and press the right arrow key. A message appears, asking if
you really want to delete this waypoint. Press the right arrow key to delete
it, the left to exit without deleting the waypoint.
29

ROUTES
You can connect several user waypoints together to form a route. When
you recall the route, the GlobalNav 310 will show you navigation information to the first waypoint in the route, then when you reach that waypoint,
it switches to the next waypoint, and so on until you reach the last waypoint in the route.
To create a route, first press the MENU
key, highlight the “ROUTES” label, and
press the right arrow key. A new menu
appears with the “Plan Route” label already highlighted. Press the right arrow
key. The screen shown at right appears.
This unit can store up to twenty different routes. Route number one shows on
this page. If you wish to create a route using a different number, simply
press the left or right arrow keys until the desired route number appears.
In this example, however, we’ll use route number one.
At the bottom of this menu is the “Edit Name” label. If you wish to name
the route, highlight that label, then press the right arrow key. Use the
arrow keys to name the route, (you can use up to eight characters in the
name) then press the ENT key when you’re finished.
Now highlight the “Edit Route” label and
press the right arrow key. The screen
shown at right appears. This is the waypoint list screen. This shows all of the
waypoints that form the route. To select
the first waypoint in the route, press the
right arrow key. A new menu appears as
shown at the top of the next page.

This menu lets you go to the waypoint
selection menu, delete a waypoint from
the route, or see details about any waypoint in the route. Since we want to add
a waypoint to the route, press the right
arrow key on the “Insert From WPTS”
label. The screen shown below appears.

Select Waypoints
Select the first waypoint either by using
the waypoint name or waypoint number
menus. As you move through the list of
saved waypoints, their date and time
saved, position, and distance and bearing from your present position show at
the bottom of the screen. When the desired waypoint appears that you want to
use as the first waypoint on the route,
move the black box to the “Add WPT To
Route” label, then press the right arrow
key. The unit returns to the route planning screen with this waypoint placed in
the first location on the list as shown at
right.
To add more waypoints to the route, simply press the down arrow key to the next
position on the list and press the right
arrow key. Continue until all of the
waypoints have been added to the route.
As you add waypoints to the list, their
bearing and distance from each other is
shown to the right of the waypoint name.
On the screen at right, waypoint 6 is on
a bearing of 215° and 7.27 miles from
waypoint 3. The total route distance is
shown at the bottom of this screen.

Finishing the Route
When you’ve selected all of the waypoints for the route, simply press the
EXIT key until you return to the navigation, plotter, or windows screen.
Your route is saved in memory.
Delete a Waypoint
To delete a waypoint from a route, first
select the route from the “Route Planning” or “Run Route” menus, then highlight the waypoint that you want to remove from the route’s list. Now press
the right arrow key. The screen shown
at right appears. Highlight the “Delete”
label on this menu and press the right
arrow key. The unit returns to the route
list with the waypoint removed from the
list. (Note: This doesn’t delete the waypoint from the database, it only
removes it from the route.)
Waypoint Detail
To view the position, bearing, distance, and other information about a
waypoint saved in a route, first select the route from the “Route Planning”
or “Run Route” menus, then highlight the
desired waypoint from the route’s list.
Now press the right arrow key. The
screen shown above appears. Move the
black box to the “Detail” label and press
the right arrow key. The screen at right
appears.
This screen shows the waypoint’s name,
number creation time and date, icon,
position, distance, and bearing from your
present position. When you’re finished viewing this information, press the
EXIT key to erase it.

Following a Route
To follow a route, first recall it by pressing the MENU key, highlighting the
“ROUTES” label, pressing the right arrow key, then highlighting the “RUN
ROUTE” label and press the right arrow
key. The screen shown at right appears.
32

The black box is on the “Route # 1” label. If this isn’t the route you want to
use, press the right or left arrow keys to switch to another one. Before
starting the route, you’ll need to decide if you want to start at the beginning and travel forward or start at the last waypoint in the route and travel
backwards (reverse) to the first waypoint. The default is forward. Next,
highlight the “Start Route” label and press the right arrow key. The screen
shown below appears.
Once you determine which direction in
the route you want to go, you’ll need to
determine the first waypoint in the list
you want to start the route. Usually, it’s
the first waypoint, however the
GlobalNav 310 gives you several options.
The default starting waypoint is the first
one in the list. However, by pressing the
right arrow key, the word “AUTO” appears in the “Select First WPT” list. This
starts the route with the waypoint that’s closest to your present position.
You can start at any waypoint in the route. As you change the number,
the selected starting waypoint is highlighted on the list.
If you want to see details about the highlighted waypoint, press the WPT
key.
When you have everything on this
screen set as desired, press the ENT
key to start the GlobalNav 310 navigating to the first waypoint on the route.
As you travel to the first waypoint, the
unit shows navigation data to the waypoint. If you use the plotter, as shown at
right, the unit draws a dotted line from
your starting position (shown by the “S”),
and a dashed line from the first waypoint to each of the other waypoints
in the route. When you enter the radius set by the arrival alarm, the
GlobalNav 310 automatically switches to the next waypoint on the list,
showing navigation data to that waypoint, and so on until the last waypoint on the route list has been reached. (Note: The arrival alarm does
not have to be turned on in order to use the route feature.)

Skip Waypoint
The GlobalNav 310 lets you skip a waypoint in a route without stopping the
route. To do this, first press the MENU
key, then highlight the “Routes” menu and
press the right arrow key, then highlight
the “Skip WPT” label and press the right
arrow key. The unit returns to the navigation, plotter, or windows screen with
navigation data showing to the next waypoint on the list.
Delete a Route
To erase a route, first press the MENU
key, then highlight the “Routes” menu
and press the right arrow key, highlight
the “Plan Route” label and press the right
arrow key. The screen shown at right
appears. Now select the route you want
to erase by pressing the right or left arrow keys. When the desired route number appears, then highlight the “Delete
Route” label and press the right arrow
key. A message appears, asking if you really want to erase the route. If
you press the right arrow key, the route will be erased.

NAVIGATION
Navigate To a Waypoint
The GlobalNav 310 makes it easy to
navigate to any waypoint. First, press the
WPT key, then press the right or left arrow keys until the desired waypoint appears. Now highlight the “Go To WPT#”
label and press the right arrow key. The
unit immediately returns to the navigation, plotter, or windows screen and
shows navigation information to the selected location.
In this example, we recalled waypoint
number 2. Switching to a plotter screen
(shown at the top of the next page)
shows our starting location “S”, the recalled waypoint “2”, and our present position.

Navigating to a cursor location
The GlobalNav 310 lets you navigation
to a location without storing it in the waypoint database by using the plotter and
cursor. To do this, first switch to the plotter screen. Now move the cursor to the
location that you want to navigate to.
Next, press the MENU key. A new menu
appears on the list: “Go To Cursor”.
Press the right arrow key. The GlobalNav
310 shows nav data to the cursor location (shown as “D” on the plotter). See
the screen at the top of the next page.

Navigating to a Waypoint using the
Plotter
The unique “birds-eye” view used by the
plotter gives you an easy way to navigate to a waypoint. On the screen shown
at right, the diamond with a cross in it is
your present position. The box with the
“S” in it was your starting location when
you recalled the waypoint. The dotted line is called a track line and is the
shortest path from the starting location to the destination. The “D” is the
cursor destination, the number with a box around it is the waypoint. If you
follow the track line, you’ll reach the destination, covering the shortest
distance in the least time.

CAUTION!
The GlobalNav 310 does NOT take land features, altitudes, restricted
or prohibited areas, or any other feature into account when it projects
the track line on the screen. Therefore, you must use care when navigating on the track line and avoid any object that may be in your path to
the destination.

CANCEL NAVIGATION
The GlobalNav 310 continues to navigate to a recalled waypoint, the last
waypoint in a route, or the cursor position until you stop it.
To stop the navigation function, press
the MENU key, then press the up or
down arrow keys until the “Cancel Navigation” label is highlighted. Press the
right arrow key. The unit stops showing
navigation information.

SYSTEM SETUP
The GlobalNav 310 has several menus
and commands listed under the “System Setup” label on the main menu.
These commands affect the basic operation of the unit. To use them, press
the MENU key, then highlight the “System Setup” label. Press the right arrow
key. The screen shown at right appears.

SPEAKER
You can turn the speaker off. Turning the speaker off also turns off the
audible portion of the alarms.
To turn the speaker off, highlight the “Sound” label on the “System Setup”
menu as shown above. Now press the left arrow key to turn the speaker
off. Repeat these steps to turn the speaker on. Press the EXIT key to
erase this screen.
CONTRAST
To adjust the display’s contrast, highlight the “Cont” label on the “System
Setup” menu as shown above. Press the right or left arrow keys until the
screen’s contrast is best for the lighting conditions. Press the EXIT key to
erase this screen.
Units of Measure
The GlobalNav 310 can show its data in many different formats. For example, distance can be displayed in statute miles (MI), nautical miles
(NM), or kilometers (KM).
The following can be changed on the Units of Measure menu: (Defaults
shown in bold)
Distance .................. miles, nautical miles, kilometers
Speed ..................... miles per hour, knots, kilometers per hour
Bearing ................... magnetic, true
Altitude .................... feet, meters
Clock ....................... 12-hour (a.m.-p.m.), 24 hour
Position Format ....... degrees, minutes, and thousands of a minute
degrees, minutes, seconds
UTM
standard military grid reference system
alternate military grid reference system
37

To change a unit of measure, first select
the “Set Units” from the “System Setup”
menu. The screen shown at right appears. Highlight the desired selection,
then press the left or right arrow key.You
can change one or all of the settings on
this page. When you’re finished, press
the EXIT key.

Position Format
To change the position format, highlight
the “Position Format” label on the Units
of Measure menu, (shown above) then
press the right arrow key. A screen similar to the one at right appears.
The GlobalNav 310 can show the position in degrees, minutes, and thousandths of a minute (36 28.700') or degrees, minutes, seconds, and tenths of
a second (36 28' 40.9". It can also show position in UTM’s (Universal
Transverse Mercator) projection, British, Irish, and Military Grid systems.
UTM’s are marked on USGS topographic charts. This system divides the
Earth into 60 zones, each approximately
6 degrees wide in longitude. Their unit
of measure is in meters. For example,
30 N means that the position shown to
the left of the “N” is in grid 30, and it’s
north of the equator.

British and Irish grid systems are the
national coordinate system used only in
their respective countries.
Note: In order to use either the British or
Irish grid systems, you must be in the
U.K.

The GlobalNav 310 can use the military
grid reference system (MGRS). It uses
two grid lettering schemes, which are
referred to as standard and alternate
MGRS on the GlobalNav 310. Your position and datum in use determines
which one to use. In general, if the datum you’re using is valid for your present
position, then use the standard MGRS,
otherwise use the alternate MGRS.
Press the up or down arrow keys to highlight the desired position format. Press
the EXIT key to both select the format
and erase the position format menu.

NMEA / DGPS
The GlobalNav 310 transmits data through the data port in the back of
the unit using NMEA 0183 format, version 1.5 or 2.0. This data is used by
other electronic devices such as marine autopilots for position and steering information.
DGPS on the other hand, is a data input. DGPS is an acronym for Differential Global Positioning System. Currently, it relies on a system of groundbased transmitters that send correction signals to small DGPS receivers.
DGPS gives you more accurate positions than is otherwise possible.
39

All wiring connections to the GlobalNav 310 are made to it’s power cable.
See the sample wiring diagrams on the next page for general wiring procedures. Read your other product’s owner’s manual for more wiring information.
Once the cables are wired, turn the
GlobalNav 310 on, press the menu key,
and select NMEA / DGPS from the System Setup menu. A screen similar to the
one at right appears.
NMEA OUTPUT
To turn the NMEA output on, highlight
the “NMEA OUTPUT” menu, then press
the right arrow key. If your other equipment works, then no setup will need to be performed. If your other equipment doesn’t recognize the NMEA data being sent by the GlobalNav 310
and the wiring is correct, then you may need to change the NMEA or the
serial communication settings.
Configure NMEA Output
Highlight the “Configure NMEA Output”
menu, then press the right arrow key. A
screen similar to the one at right appears.
NMEA 0183 Version
There are two versions of the NMEA
data, 1.5 and 2.0. If your other equipment requires 2.0, press the right arrow
key to select it.
RMC/RMB, GLL, APB, GGA, GSA/GSV Sentences
Some equipment requires different sentence. The GlobalNav 310’s default setting for these sentences is on. In other words, it automatically
sends these sentences when NMEA is turned on. To turn any of these
off, move the black box to the desired menu and press the left arrow key.
Press the EXIT key when you’re finished with this screen.
DGPS
The GlobalNav 310 will recognize Starlink® and Magnavox® DGPS automatic receivers. If you have either one of these receivers, simply highlight
the “Starlink DGPS” or “Magnavox DGPS” on the NMEA / DGPS menu
and press the right arrow key to turn it on. (Note: If you have a Magnavox
40

GLOBALNAV 310
TRANSMITTING NMEA
DATA TO ANOTHER DEVICE

TO GLOBALNAV 310

GLOBALNAV 310’S
WIRES
WHITE WIRE
RED WIRE
TO +12V
BLACK WIRE

GROUND WIRES

OTHER DEVICE’S
WIRES
OTHER
DEVICE’S
RECEIVE
DATA WIRE

12 VDC
BATTERY

OTHER
DEVICE

TO GLOBALNAV 310

GLOBALNAV 310
RECEIVING DATA FROM
A DGPS RECEIVER

GLOBALNAV 310’S
GREEN WIRE
WIRES
WHITE WIRE
RED WIRE
TO +12V
BLACK WIRE

GROUND WIRES

DGPS
RECEIVER’S
TRANSMIT
DATA WIRE

DGPS
RECEIVER’S
RECEIVE DATA
WIRE
(IF NEEDED)

12 VDC
BATTERY

DGPS
RECEIVER

DGPS receiver connected, the GlobalNav 310 can’t send NMEA data.)
With the exception of serial communications, typically no other setup
needs to be made with these receivers.
If you have any other Magnavox or
Starlink compatible DGPS receiver connected to the GlobalNav 310, you may
need to change the settings. To do this,
move the black box to the “Configure
DGPS Beacon Receiver” label and press
the right arrow key. A screen similar to
the one at right appears.
These menus select the beacon receiver’s frequency and bit rate (in bits
per second). If you are using a Starlink receiver, turning the auto mode
on causes the GlobalNav 310 to auto-detect the frequency and bit rate.
To change one of these settings, simply highlight the menu item you wish
to change, then press the right or left arrow key until the desired number
appears. Press the EXIT key when you’re finished.
SERIAL COMMUNICATIONS SETUP
To set the data port, move the black box
to the “Setup Com” on the System Setup
menu. Press the right arrow key. The
screen shown at right appears.
Check your DGPS receiver’s manual for
the proper data settings. Highlight the
menu item you need to change. Press
the left or right arrow keys to change
them. The serial port defaults are 4800
baud, no parity, and 8 data bits. Press the EXIT key to erase this menu.
RESET OPTIONS
To return the GlobalNav 310 to its original factory settings, highlight the “Preset Options” menu on the System Setup
screen. Now press the right arrow key.
A message appears, asking if you want
to restore the original options. Press the
right arrow key if you do, the left arrow
key to quit.

If you restore the unit to the factory settings, all options such as contrast,
alarms, and other system choices are returned to their default values.
However, no waypoints, routes, or icons are erased.
RESET GROUPS
To return all groups to their factory defaults, highlight the “RESET
GROUPS” label on the “System Setup” menu. Finally, press the right
arrow key. All digital boxes on the navigation plotter screens are reset to
their factory settings.
SYSTEM INFO
The system information screen shows
the release date and the version number of the code stored inside the
GlobalNav 310. To view this screen, highlight the “System Info” label on the “System Setup” menu. Now press the right
arrow key. A screen similar to the one at
right appears. Press the EXIT key when
you’re finished reading this screen.
GPS SETUP
The GPS Setup menu has sub-menus
that affect the GPS receiver. From these
menus you can turn the simulator on or
off, set the update rate, initialize the GPS
receiver, do a self-test on the receiver,
and do a cold-start. (Note: The “Initialize
GPS receiver” is covered in the “Finding
Your Position” section in the front of this
manual.
To view these menu items, press the MENU key, then highlight the “GPS
Setup” menu. Press the right arrow key. The screen shown above appears.
Execute GPS Cold Start
When the GlobalNav 310 is turned on for the first time “out of the box”, it
automatically sends a “cold-start” message to the GPS receiver. You can
also send a cold start message to the receiver at any time.
If the unit can’t lock on to the satellites using the data you’ve given it, or
if it has trouble finding the satellites, perhaps it is using the wrong data.
This can happen if you’ve entered the wrong data by accident when ini43

tializing the receiver. For example, if you
entered east longitude instead of west.
Or if you’ve moved a long distance with
the unit turned off.
To send a cold start message to the receiver, highlight the “Execute GPS Cold
Start” label, then press the right arrow
key. A message appears, asking you if
you really want to do a cold start. Follow
the instructions on this message page.
The unit will begin searching for the satellites. It can take as long as 5
minutes for it to lock on to the necessary satellites. Remember, when it
does, your local time and possibly date can be wrong. Use the method
shown in the initialization section at the front of this manual to change
them, if needed. Once this is done, an internal clock will keep the correct
time, even when the unit is turned off. The GPS system updates this
clock when the unit is locked on to the satellites.
DATUM
Maps and charts are based on a survey of the area that’s covered by the
map or chart. These surveys are called “Datums”. Maps that are created
using different datums will show the same latitude/longitude in slightly
different locations.
All datums are named. The GPS system is based on the WGS-84 datum,
which covers the entire world. Other datums may also cover the entire
world, or just a small portion. By default, the GlobalNav 310 shows your
position on the map using the WGS-84 datum. However, it can show your
position using one of 189 different datums.
To change the datum, first press the
MENU key, then highlight the “GPS
Setup” label and press the right arrow
key. Now highlight the “Select Datum”
label. Finally, press the right arrow key
again. A screen similar to the one at right
appears.
The WGS-84 label is highlighted. To change it, simply press the up or
down arrow keys to highlight the desired datum, then press the ENT key.
This selects the datum and erases the select datum menu.
44

PCF (Position Correction Factor)
Another method used to make your display match a chart or map is
called “PCF” or Position Correction Factor. This unit gives you the capability to move or offset the position shown on the display to match one on
the chart. The unit will add this offset to all position and navigation displays at all times.
Remember, the position error on any radio navigation system is very
dynamic and the PCF offset should never be used in an attempt to cancel the error.
In general terms, PCF should only be used if your map indicates what
the possible error is. PCF should always be reset to zero when you’re
finished with the chart.
For example, suppose you are stopped at a location that is accurately
marked on a chart. Your unit shows a longitude position that is .244 minutes east of the one on the chart and .047 minutes north latitude. Using
the PCF feature, you can make the GlobalNav 310 match the chart you’re
using. If you move, the unit will continuously add the change to all position, navigation, and mapping displays. This makes it more closely match
the datum used by the chart. For this reason, you should be careful when
entering the PCF offset. It’s saved in memory and doesn’t change when
the unit is turned off. However, resetting
the unit does erase the PCF offset.
To change the PCF offset, first press the
MENU key, then highlight the “GPS
Setup” label and press the right arrow
key. Now highlight the “Set PCF Offset”
label. Finally, press the right arrow key
again. A screen similar to the one at right
appears.
Now enter the correction for your location. Remember, this is the difference
between the location shown on the
present position display and the position
shown on the chart. In this example, we
entered 0 degrees, 0.047 minutes north
latitude and 0 degrees, 0.244 minutes
east longitude. That is the difference between the present position shown by the
GlobalNav 310 and the one on our chart.
45

After you’ve entered the latitude/longitude correction, press the ENT key
to accept it. The GlobalNav 310 erases the PCF entry screen and returns
to the navigation or mapping screens with the correction factor applied.
POSITION PINING
When using a GPS receiver at extremely low speeds, it can have trouble
determining your course over ground, or direction you’re travelling. This is
due in large part to SA, or selective availability. SA is small inaccuracies
purposefully put into the GPS satellite’s signal by the government. This
cause wide variations in the track display and other navigation displays
when using the unit at slow speeds.
If you’re using the GlobalNav 310 without DGPS and stop, the position
pinning feature locks the present position indicator on the plotter until
you’ve moved a short distance or exceed a very slow speed. This prevents the “wandering” plot trail seen when you’re stopped with position
pinning turned off. This also affects the navigational displays.
The easiest way to see the effects of S/A is to stand still with the GlobalNav
310 turned on and watch your plot trail with position pinning turned off.
You’ll see the present position change, speed increase and decrease,
and a random plot trail on the plotter’s screen.
To turn the position pining feature off, press the MENU key, then highlight
the “GPS Setup” label and press the right arrow key. Now highlight the
“Pos Pinning” label. Finally, press the left arrow key.
ALARMS
This unit has several alarms. You can set an arrival alarm to sound a
warning tone when you cross a preset distance from a waypoint. For
example, if you have the arrival alarm set to .1 mile, then the alarm will
sound when you come within .1 mile of the recalled waypoint. The course
deviation indicator alarm (CDI) can sound a warning when your track
drifts too far to the right or left of the line to the waypoint. For example, if
the alarm is set to .1 mile, then the alarm will sound if you drift .1 of a mile
or more to the right or left of the line to
the waypoint. The anchor alarm sounds
a warning when you drift outside of a
preset radius. Again, using the .1 mile
as an example, if you’re anchored and
your boat moves more than .1 of a mile,
the alarm will sound.
To use any of these alarms, first press
46

the MENU key, then select the “ALARMS/CDI” menu. A screen similar to
the one shown at right appears. Press the up or down arrow key to move
the black box to the desired alarm, then press the right arrow key to turn
it on.
To adjust an alarm’s distance, move the black box to the alarm’s “DIST”
menu item, then press the right or left arrow keys to increase or decrease
the alarm’s distance.
When you’re finished adjusting the alarms, press the EXIT key to erase
this menu.
Important Alarm Notes:
Anchor Alarm - Since civilian users don’t receive the accuracy given to
military users, the anchor alarm may sound even when you’re sitting
still. This typically happens when using small (less than .05 mile) anchor alarm ranges. If you have a DGPS beacon receiver connected to
the GlobalNav 310, smaller ranges may be usable.
Arrival Alarm - If you set the arrival alarm’s distance to zero (0), and
you run a route (see the routes section), the GlobalNav 310 may not
show navigation data to the next waypoint, once you arrive at the first
one. If you use the routes feature, never set the arrival alarm to zero.

MESSAGES
On the GPS Alarms menu are the position and DGPS message selections. When turned on, the position message appears for a few seconds
whenever the GlobalNav 310 locks onto the satellites and shows a position. It also appears when the unit loses the lock onto the satellites and
cannot navigate. Pressing the EXIT key erases these messages.
The DGPS message appears whenever the unit begins or stops using
DGPS data to help determine your position.
The default setting for these messages is “on”. To turn either message
off, select the “GPS Alarms” menu from the main menu, then move the
black box to the desired message and press the left arrow key. Press the
EXIT key to erase this screen.
BACKLIGHT
The AirMap’s display and keyboard have lights that can be turned on for
night use. To turn the lights on, simply press the PWR key. To turn them
off, press the PWR key again.
47

REPROGRAM WINDOW GROUPS
You can customize the window groups to meet your own needs. The
GlobalNav 310 gives you 35 different
windows that can be rearranged into
many combinations.
To reprogram a group, first go to the
modes menu and select the group that
you wish to change. In this example,
we’re reprogramming group “A”.

Next, press the MENU key, highlight the
"Reprogram Groups" label and press the
right arrow key. A screen similar to the
one shown at right appears.
The altitude window appears in the upper
left corner. To view a different window,
press the left or right arrow key. When
the desired window appears, press the
down arrow key to select it. In this example, we selected the digital clock.The
GlobalNav 310 will add this window to
the selected group. It then shows the
selected window’s position, as shown at
right.
If you want to delete a window from a
group, simply press the up arrow key.
Continue selecting windows in this manner until all of the desired windows
have been added to the group. When the
last window has been added, the
GlobalNav 310 returns to normal operation with your reprogrammed group showing on the screen, as shown at right.

RESET GROUPS
To restore all windows groups to their factory settings, first press the
MENU key, then highlight the “System Setup” label and press the right
arrow key. Now highlight the “Reset Groups” label on this menu. Press
the right arrow key. A message appears, asking if you really want to do
this. Press the right arrow key to continue, or the left arrow key to exit
without resetting the groups.

SIMULATOR
A simulator is built into the GlobalNav 310 that has several options. You
can use nearly all of the unit’s features - even save and recall waypoints.
This is useful for trip planning.
To use the simulator, press the MENU
key, then press the up or down arrow
keys until the “Simulator Setup” menu is
surrounded by the black box. Now press
the right arrow key. The screen shown
at right appears.
If you simply press the right arrow key,
turning the simulator on, the GlobalNav
310 will start from your present position and follow a track of 355° at 100
miles per hour.
To change either the track or speed, highlight the one you want to change,
then press the right or left arrow key. When the numbers are correct,
press the EXIT key.
Starting Position
Normally, the starting position for the
simulator is your present position. If you
want to change the starting position,
highlight the “Set Starting Waypoint” label on the Simulator Setup menu, then
press the right arrow key. The screen
shown at right appears.
You can select any waypoint as the
simulator’s starting point. Select the starting point by pressing the right
arrow key on the “WPT#” label until the desired starting waypoint number
appears. Now highlight the “Start At” label and press the right arrow key.
The GlobalNav 310 returns to the Simulator Setup menu.
Use Arrow Keys to Steer
This option lets you change both the
course and speed on the screen as the
simulator is running. To do this, highlight
the “User Arrows to Steer” label on the
Simulator Setup screen, then press the
right arrow key. The screen shown at right
appears. Use the up and down arrow
50

keys to increase or decrease the speed. Use the right and left arrow keys
to change the track. Press the EXIT key to erase these menus.
When you’re finished changing the track and speed, press the EXIT key
to erase the menus.
To turn the simulator off, press the MENU key, then move the black box to
the “Simulator Setup” label. Finally, press the left arrow key.
Note: Your plot trail will be erased when you turn the simulator on or off.
DEFINITION OF TERMS/ABBREVIATIONS
Due to space considerations, the digital displays use abbreviations for
some names. They are as follows:
ALT ............... Altitude - Your height above sea level.
BRG ............. Bearing - The direction from your present position to a
waypoint.
CLOCK ......... Your local time.
TRK .............. Track - The direction you’re travelling.
DIS ............... Distance - Distance remaining between your present position and a waypoint.
DNT/UPT ...... Countdown timer (DNT) and Count up timer (UPT)
ETE .............. Estimated Time En route
FIX ............... A measure of your receiver’s position quality. A fix of 1 is
bad, 9 is the best.
ICON ............ A symbol you can place on the map, representing a landmark.
POSITION .... Your present position.
GS ................ Ground Speed - Your actual speed.
TTG .............. Time To Go - Time remaining at your present speed until
you reach a waypoint.
VOLTS .......... Electrical system voltage.
VMG ............. Velocity Made Good - Your ground speed towards a recalled waypoint, airport, etc.
XTK .............. Cross Track Error - Shows your distance to the side of the
desired course line.

WINDOWS
The following is a listing of windows groups A through O.

GROUP “A”

GROUP “B”

GROUP “C”

GROUP “D”

GROUP “E”

GROUP “F”

GROUP “G”

GROUP “H”
52

GROUP “I”

GROUP “J”

GROUP “K”

GROUP “L”

GROUP “M”

GROUP “N”

GROUP “O”

Lowrance's UPS Return Service - U.S.A. Only
Lowrance Electronics and United Parcel Service (UPS) are proud to offer all of our customers free shipping for all units sent to us for repair or
service. If you have to send this unit to the factory, and you are in the
continental United States, use the enclosed UPS shipping label for easy,
free shipping to our factory customer service department. There are six
easy steps:
1. Call Lowrance at the toll-free number on the back of this manual for a
Return Authorization (RA) number and instructions about what accessories to return. Do not return a product to the factory without a
Return Authorization (RA) Number!
2. Pack your unit and any accessories in the original shipping container,
if possible. Be sure to include proof of purchase for warranty verification!
3. Write a brief note detailing the problem you're having with the unit.
Please include your name, address, and daytime telephone number.
4. Please include payment for non-warranty repairs. Check, money order,
Visa, or MasterCard may be used.
5. Fill in your name, address, zip code, date, and RA number in the blanks
provided on the UPS form included with your unit.
6. Attach the label to the shipping box, tear off the tab for your receipt
and give the package to any UPS driver or take the package to any
UPS Customer Center. You will not be charged for this shipment.
That's it! Your unit will be shipped to Lowrance's customer service department at no charge to you. Units under warranty will be returned to
you at no charge.
NOTE!
Lowrance will pay UPS surface shipping charges both to and from the
factory for this unit in the event it needs repair.Your unit is insured against
loss or shipping damage when you use the enclosed UPS label.

This UPS shipping offer is good only in the continental United States (excludes Alaska and Hawaii).

KEEP THIS LABEL!
YOU WILL NEED IT IF YOU EVER NEED TO RETURN YOUR UNIT
TO THE FACTORY FOR REPAIR.

Accessory Ordering Information
To order accessories such as power cables, please contact:
1) Your local marine dealer. Most quality dealers that handle marine electronic equipment should be able to assist you with these items. Consult
your local telephone directory for listings.
2) LEI Extras, Inc. P.O. Box 129 Catoosa, OK 74015-0129
or call
800-324-0045
(USA orders only.)
Lowrance Electronics may find it necessary to change or end our shipping policies, regulations, and special offers at any time. We reserve the
right to do so without notice.
55

LOWRANCE ELECTRONICS
FULL ONE-YEAR WARRANTY
“We", “our”, or “us” refers to LOWRANCE ELECTRONICS,INC., the manufacturer of this
product. “You” or “your” refers to the first person who purchases this product as a consumer
item for personal, family, or household use.
We warrant this product against defects or malfunctions in materials and workmanship,
and against failure to conform to this product’s written specifications, all for one year (1)
from the date of original purchase by you. WE MAKE NO OTHER EXPRESS WARRANTY
OR REPRESENTATION OF ANY KIND WHATSOEVER CONCERNING THIS PRODUCT.
Your remedies under this warranty will be available so long as you can show in a reasonable manner that any defect or malfunction in materials or workmanship, or any non-conformity with the product’s written specifications, occurred within one year from the date of
your original purchase, which must be substantiated by a dated sales receipt or sales slip.
Any such defect, malfunction, or non-conformity which occurs within one year from your
original purchase date will either be repaired without charge or be replaced with a new
product identical or reasonably equivalent to this product, at our option, within a reasonable time after our receipt of the product. If such defect, malfunction, or non-conformity
remains after a reasonable number of attempts to repair by us, you may elect to obtain
without charge a replacement of the product or a refund for the product. THIS REPAIR,
REPLACEMENT, OR REFUND (AS JUST DESCRIBED) IS THE EXCLUSIVE REMEDY
AVAILABLE TO YOU AGAINST US FOR ANY DEFECT, MALFUNCTION, OR NON-CONFORMITY CONCERNING THE PRODUCT OR FOR ANY LOSS OR DAMAGE RESULTING FROM ANY OTHER CAUSE WHATSOEVER. WE WILL NOT UNDER ANY CIRCUMSTANCES BE LIABLE TO ANYONE FOR ANY SPECIAL, CONSEQUENTIAL, INCIDENTAL, OR OTHER INDIRECT DAMAGE OF ANY KIND.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply to you.
This warranty does NOT apply in the following circumstances: (1) when the product has
been serviced or repaired by anyone other than us, (2) when the product has been connected, installed, combined, altered, adjusted, or handled in a manner other than according to the instructions furnished with the product, (3) when any serial number has been
effaced, altered, or removed, or (4) when any defect, problem, loss, or damage has resulted from any accident, misuse, negligence, or carelessness, or from any failure to provide reasonable and necessary maintenance in accordance with the instructions of the
owner’s manual for the product.
We reserve the right to make changes or improvements in our products from time to time
without incurring the obligation to install such improvements or changes on equipment or
items previously manufactured.
This warranty gives you specific legal rights and you may also have other rights which may
vary from state to state.
REMINDER: You must retain the sales slip or sales receipt proving the date of your original purchase in case warranty service is ever required.

LOWRANCE ELECTRONICS
PO BOX 669 CATOOSA, OK 74015
(800) 324-1354
56

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4.75MM (3/16”)
4 PLACES

25MM (1”)
(If Necessary)

ANTENNA MODULE TEMPLATE

How to Obtain Service
(Canadian Customers Only)
We back your investment in quality products with quick, expert service and genuine Lowrance replacement parts. If you need service or repairs, contact the Lowrance Factory
Customer Service Department at the toll-free number listed below. A technician may be
able to solve the problem and save you the inconvenience of returning your unit. You will
be asked for your unit's serial number.

800-324-1354
Canada Only. Monday through Friday 8:00 A.M. - 8:00 P.M. Central Time.
When sending a product for repair, please do the following:
1. Always use the original shipping container and filler material the product was packed
in when shipping your product.
2

Always insure the parcel against damage or loss during shipment. Lowrance does not
assume responsibility for goods lost or damaged in transit.

For proper testing, repair, and service, send a brief note with the product describing
the problem. Be sure to include your name, return shipping address, and a daytime
telephone number.

How to Obtain Service
(International Customers Only - Except Canada)
If you need service or repairs, contact the dealer in the country you purchased your
unit.

WARRANTY REPAIR WILL BE HONORED ONLY IN THE
COUNTRY UNIT WAS PURCHASED.
Please follow the shipping instructions shown below on this page if you have to mail
your unit to the dealer. For proper testing, repair, and service, send a brief note with the
product describing the problem. Be sure to include your name, return shipping address, and a daytime telephone number.

Accessory Ordering Information - All Countries
To order accessories such as power cables or transducers, please contact:
1. Your local dealer. Most quality dealers that handle GPS navigation equipment should
be able to assist you with these items. Consult your local telephone directory for
listings.
2. Canadian customers only can write:
Lowrance/Lowrance Canada, 919 Matheson Blvd., E. Mississauga, Ontario
L4W2R7
or fax 416-629-3118

How to Obtain Service - U.S.A. Only
We back your investment in quality products with quick, expert service
and genuine Lowrance® replacement parts. If you're in the United States
and you have questions, please contact the Factory Customer Service
Department using our toll-free number listed below. You must send the
unit to the factory for warranty service or repair. Please call the factory
before sending the unit. You will be asked for your unit's serial number.
Use the following toll-free number:

800-324-1354
U.S.A.only. Monday through Friday 8:00 A.M. - 8:00 P.M. Central time, except holidays.

Your unit is covered by a full one-year warranty. (See page 56 inside this
manual for complete warranty details.) If your unit fails and the failure is
not covered by the original warranty, Lowrance has a flat-rate repair policy
that covers your unit and accessories packed with the unit at the factory.
There is a 180-day warranty on all non-warranty repairs from the factory,
which is similar to the original warranty, but is for 180 days rather than one
year. For further details, please call us at the above number.
Lowrance also gives you free UPS shipping from anywhere in the continental United States both to and from the factory for all warranty repairs.
You can also use the enclosed UPS shipping label for non-warranty shipments. See page 54 for more information. Remember, non-warranty repairs are subject to Lowrance's published flat-rate charges and 180-day
warranty.

LITHO IN U.S.A.

988-0129-63

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Modify Date                     : 2006:07:11 16:44:56-05:00
Metadata Date                   : 2006:07:11 16:44:56-05:00
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Description                     : 
Creator                         : Lowrance Electronics, Inc.
Title                           : GlobalNav 310 Owners Manual
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Author                          : Lowrance Electronics, Inc.

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Lowrance Electronic 310 Users Manual GlobalNav Owners

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