Furuno GP-1640 User manual

GPS/PLOTTER
GP-1640

Your Local Agent/DealerYour Local Agent/Dealer
9-52 Ashihara-cho,9-52 Ashihara-cho,
Nishinomi
y
a, Ja
p
anNishinomi
y
a, Ja
p
an
Tele
p
hone :Tele
p
hone : 0798-65-21110798-65-2111
Telefax :Telefax : 0798-65-42000798-65-4200
FIRST EDITION :FIRST EDITION : JUN.JUN. 20022002
Printed in JapanPrinted in Japan
A
ll ri
g
hts reserved.
A
ll ri
g
hts reserved. B :B :
A
UG.
A
UG. 28,200228,2002
PUB.No.PUB.No. OME-44230OME-44230
*00080929200**00080929200*
*00080929200**00080929200*
(( HIMAHIMA )) GP-1640GP-1640 * 0 0 0 8 0 9 2 9 2 0 0 ** 0 0 0 8 0 9 2 9 2 0 0 *
*OME44230B00**OME44230B00*
*OME44230B00**OME44230B00*
* O M E 4 4 2 3 0 B 0 0 ** O M E 4 4 2 3 0 B 0 0 *

i
SAFETY INSTRUCTIONS
Do not disassemble or modify the
equipment.
Fire, electrical shock or serious injury
can result.
Turn off the power immediately if water
Do not open the equipment.
leaks into the equipment or the equip-
ment is emitting smoke or fire.
Continued use of the equipment can cause
fire or electrical shock.
Do not place liquid-filled containers on
the top of the equipment.
Fire or electrical shock can result if a
liquid spills into the equipment.
Do not operate the equipment with wet
hands.
Electrical shock can result.
Keep heater away from equipment.
Heat can alter equipment shape and melt
the power cord, which can cause fire or
electrical shock.
Hazardous voltage which can
cause electrical shock, burn or
serious injury exists inside the
equipment. Only qualified
personnel should work inside
the equipment.
WARNINGWARNING CAUTION
Do not use the equipment for other than
its intended purpose.
Use of the equipment as a stepping stool,
for example, can result in personal injury
or equipment damage.
No one navigation device should ever be
solely replied upon for the navigation of
a vessel.
Always confirm position against all available
aids to navigation, for safety of vessel and
crew.
GPS position and velocity accuracies
are controlled by the U.S. Department of
Defense. Position may be degraded
up to 100 meters.
A warning label is attached to the equip-
ment. Do not remove the label. If the
label is missing or illegible, contact
a FURUNO agent or dealer.
WARNING
To avoid electrical shock, do not
remove cover. No user-serviceable
parts inside.
Name:WarningLabel(1)
Type:86-003-1011-0
CodeNo.:100-236-230
Confirm that the power supply voltage
is compatible with the voltage rating
of the equipment.
Connection to the wrong power supply can
cause fire or equipment damage.

ii
NOTICE
Install the equipment in accordance with
the recommended procedures set
forth is this manual.
Intended performance cannot be expected
unless the equipment is installed properly.
Risk of explosion if battery is replaced
by an incorrect type.
Dispose of used batteries according to
the instructions.
The STN is constructed using the
latest STN techniques, and displays
99.99% of its pixels. The remaining 0.01%
of the pixels may drop out or blink, how-
ever this is not an indication of malfunc-
tion.
About the STN LCD

iii
TABLE OF CONTENTS
FOREWORD ...................................v
SYSTEM CONFIGURATION ........vi
WHAT IS WAAS?..........................vii
1. OPERATIONAL OVERVIEW
1.1 Display Unit Controls.....................1-1
1.2 Inserting Mini Chart Card...............1-2
1.3 Turning the Power On/Off..............1-2
1.4 Adjusting Tone and Brilliance ........1-3
1.5 Plotter Displays.............................1-3
1.6 Menu Operation, Soft Keys ...........1-4
1.7 Demonstration Display..................1-5
2. PLOTTER DISPLAYS
2.1 Presentation Modes ......................2-1
2.2 Cursor...........................................2-2
2.3 Shifting the Display........................2-2
2.4 Selecting Chart Scale/Range ........2-2
2.5 Mini Chart Cards...........................2-2
2.6 Navigation Data Display................2-5
2.7 Steering Display............................2-6
2.8 Highway Display............................2-7
2.9 Changing Operation Mode ............2-8
2.10 Navigation Trip Distance ...............2-8
3. TRACK
3.1 Displaying Track............................3-1
3.2 Stopping/Restarting Plotting
of Track.........................................3-2
3.3 Track Plotting Method, Interval......3-2
3.4 Changing Track Memory Capacity.3-3
3.5 Erasing Track................................3-3
4. MARK
4.1 Entering Marks..............................4-1
4.2 Changing Mark Attributes..............4-2
4.3 Changing Mark Size......................4-2
4.4 Erasing Marks...............................4-3
4.5 Displaying Track and Mark Points .4-3
5. WAYPOINTS
5.1 Entering Waypoints........................5-1
5.2 Erasing Individual Waypoints.........5-4
5.3 Changing Waypoint Data...............5-4
5.4 Waypoint Mark Size.......................5-5
5.5 Changing Waypoint Position on the
Plotter Display................................5-5
5.6 Searching Waypoints.....................5-5
6. ROUTES
6.1 Entering Routes.............................6-1
6.2 Connecting Routes........................6-2
6.3 Inserting, Removing Waypoints......6-3
6.4 Creating Track-based Routes........6-4
6.5 Erasing Routes..............................6-5
7. NAVIGATION
7.1 Navigating to “Quick Points”...........7-1
7.2 Navigating to Waypoints
(waypoint list).................................7-2
7.3 Navigating to Ports, Port Services..7-2
7.4 Following a Route..........................7-4
7.5 Canceling Navigation.....................7-5
8. PLOTTER ALARMS
8.1 Introduction....................................8-1
8.2 Audio Alarm On/Off........................8-1
8.3 Arrival Alarm..................................8-1
8.4 Anchor Watch Alarm......................8-2
8.5 XTE (Cross Track Error) Alarm......8-2
8.6 Speed Alarm..................................8-3
8.7 Proximity Alarm..............................8-3
8.8 Alarm Information ..........................8-4
9. SAVING AND LOADING DATA
TO/FROM MEMORY CARD
9.1 Formatting Memory Cards .............9-1
9.2 Saving Data to Memory Card.........9-2
9.3 Loading Data from Memory Card...9-3

iv
10. CUSTOMIZING YOUR UNIT
10.1 CHART SETUP OPTIONS menu 10-1
10.2 DISPLAY OPTIONS menu...........10-2
10.3 GPS/DGPS/TD OPTIONS menu..10-4
10.4 CONFIGURATION menu.............10-7
11. USING C-MAP NT MODEL
11.1 Inserting Chart Card ....................11-1
11.2 Cursor and Data Display ..............11-1
11.3 Tidal Information............................11-2
11.4 Navigating to Ports, Port Services.11-3
11.5 Setting Chart Setup Options..........11-5
11.6 Selecting Chart Scale/Range.........11-6
11.7 Displaying Program Number..........11-7
12. MAINTENANCE &
TROUBLESHOOTING
12.1 Maintenance................................12-1
12.2 Replacement of Fuse, Battery......12-2
12.3 Simple Troubleshooting ...............12-2
12.4 Error Messages ...........................12-3
12.5 Diagnostic Tests...........................12-3
12.6 Clearing Memories.......................12-5
APPENDIX
Menu Tree .............................................A-1
Loran C Chains......................................A-3
Decca Chains ........................................A-4
World Time.............................................A-5
Geodetic Chart List................................A-6
SPECIFICATIONS.....................SP-1
INDEX......................................... IN-1
DECLARATION OF CONFORMITY

v
FOREWORD
A Word to GP-1640 Owners
Congratulations on your choice of the
FURUNO GP-1640 GPS PLOTTER. We are
confident you will see why the FURUNO name
has become synonymous with quality and
reliability.
For over 50 years FURUNO Electric Company
has enjoyed an enviable reputation for
innovative and dependable marine electronics
equipment. This dedication to excellence is
furthered by our extensive global network of
agents and dealers.
This equipment is designed and constructed to
meet the rigorous demands of the marine
environment. However, no machine can
perform its intended function unless installed,
operated and maintained properly. Please
carefully read and follow the recommended
procedures for operation and maintenance.
We would appreciate hearing from you, the
end user, about whether we are achieving our
purposes.
Thank you for considering and purchasing
FURUNO equipment.
Features
The main features of the GP-1640 are
• Comprehensive navigation data displays.
• Bright 5.6-inch LCD with temperature
compensated tone and brilliance control.
• Automatic coastline chart loading.
• Position display in latitude and longitude,
Loran C or Decca TDs.
• Accepts both FURUNO and NAVIONICS or
C-MAP NT mini chart cards.
• Alarms: Arrival, Anchor Watch, Cross-track
Error, Speed, Proximity.
• Man overboard feature records latitude and
longitude coordinates at time of man
overboard.
• “Highway” display provides graphic
presentation of ship’s track and is useful for
monitoring cross track error.
• WAAS capability
.

vi
SYSTEM CONFIGURATION
Ship's mains
12-24 VDC
External equipment
(Autopilot, etc.)
DGPS beacon receiver
GR-80
ANTENNA UNIT
DISPLAY UNIT
GPA-017
GP-1640
Ship's mains
100/110/115/220/230 VAC
1 , 50/60 Hz
Rectifier
PR-62

vii
WHAT IS WAAS?
WAAS, available in North America, is a provider in the worldwide SBAS (Satellite Based
Augmentation System) navigation system. SBAS provides GPS signal corrections to SBAS users,
for even better position accuracy, typically better than three meters. Two more SBAS providers are
also currently under development, MSAS (Multi-Functional Satellite Augmentation System) for Japan
and EGNOS (Euro Geostationary Navigation Overlay Service) for Europe. All providers will be
compatible with one another, thus providing “seamless” position fixes to SBAS users.
150°W 120°W 90°W 60°W 30°W 0 30°E 60°E 90°E 120°E 150°E
150°W 120°W 90°W 60°W 30°W 0 30°E 60°E 90°E 120°E 150°E
0
20°S
40°S
60°S
20°N
40°N
60°N
0
20°S
40°S
60°S
20°N
40°N
60°N
WAAS
EGNOS MSAS
Satellite, Region Position
120, AOR-E
15.5°W
122, AOR-W
54°W
131, IOR 64.5°E
134, POR 17 °E
131 134
122 120
Initial operation time
WAAS: 2003
EGNOS: 2004
MSAS: 2005
At the time of this software release, SBAS is still under development (Providers are expected to
have initial operations capability from the times shown above.) During this developmental period,
which may last for several years, there is no guarantee of the accuracy, integrity, continuity, or
availability of the SBAS signal. Furuno will accept no responsibility for the use of the signal for other
than the above stated purpose. It is the user's responsibility to exercise common prudence and
navigational judgment while using the SBAS signal.
Note: This manual uses “WAAS” when referring to any SBAS provider.

viii
This page is intentionally left blank.

1-1
1. OPERATIONAL OVERVIEW
This chapter acquaints you with the basics of your unit - from turning on the power to the soft key
menu operation.
1.1 Display Unit Controls
SAVE
MOB
ENTER
ABC
1DEF 2GHI 3
JKL
4MNO
5PQR
6
STU
7VWX
8YZ&
9
CLEAR
_'#
0
MENU
HIDE
SHOW
WPT
RTE
XTE
HIWAY
PLOT
ALARM
POWER
BRILL
• Registers own ship's positions.
• Marks man overboard position, event position.
Registers items
on menus.
Soft key's functions change
depending on the display.
Alternately displays Steering Display,
Highway Display.
Displays the waypoint & route
menu.
Mini chart card slot.
• Long press: Turns power off.
• Touch and release: Turns power on.
Opens the display for adjustment of tone and brilliance.
Displays the alarm menu.
Cursor pad
• Shifts cursor and display.
• Selects items on menus.
Enter alphanumeric data.
Opens/closes
the main menu.
• Clears data.
• Erases selected waypoint.
• Silences audible alarm.
Displays/hides the soft key menu,
nav data, mode indication.
Alternately displays Plot Display,
Nav Data Display.
Display unit

1-2
1.2 Inserting Mini Chart
Card
Insert appropriate mini chart card before
turning on the power.
1. Push down the lid catch to open the mini
chart card slot cover.
Card slot
Location of mini chart
card slot cover
2. Insert appropriate mini chart card groove
side up.
3. Close the slot cover to protect the chart
drive. (Keep the slot cover closed at all
times.)
Note: Turn off power before inserting or
ejecting the mini chart card.
1.3 Turning the Power
On/Off
Press the [POWER/BRILL] key at bottom
left-hand side of the display unit to turn on the
power. When the unit is turned on, it proceeds
in the sequence shown below, after displaying
the FURUNO information display.
Displayed for about five seconds.
Displayed for about 30 seconds,
or press any key to escape.
The last-used display appears.
NO NATIONAL HYDROGRAPHIC OFFICE
HAS VERIFIED THE INFORMATION
IN THIS COASTLINE DATA CARD AND
NONE ACCEPT LIABILITY FOR THE
ACCURACY OF REPRODUCTION OR ANY
MODIFICATIONS MADE THEREAFTER.
THIS PRODUCT WITH THIS COASTLINE
DATA CARD DOES NOT REPLACE THE
REQUIREMENT TO USE THE
APPROPRIATE PRODUCTS FOR
NAVIGATION ACCORDING TO NATIONAL
AND INTERNATIONAL REGULATONS.
– – WARNING – –
FURUNO ELECTRIC CO., LTD.
PROGRAM OK
RAM OK
BACKUP DATA OK
INTERNAL BATTERY OK
GPS OK
START UP TEST
Start-up sequence
Your equipment takes about 90 seconds to find
its position when turned on for the very first
time. This is because the equipment has no
satellite data, called the Almanac, in its
database. If you want to lessen the time
needed to find position you may enter your
position manually (default position: San
Francisco, USA) on the GPS SETUP
OPTIONS menu.
Thereafter it takes about 12 seconds to find
position each time the power is turned on.
When the satellite signal is being received
normally, the equipment displays various
abbreviations at the bottom left-hand corner of
the display which show GPS receiver status.
The following table shows these abbreviations
and their meanings.
Display abbreviations
Indication Meaning
GPS 2D Normal 2D (dimension) GPS
position fix
GPS 3D Normal 3D GPS position fix
NO FIX Position can not be found.
DEMO Simulation mode
DOP DOP error
DGPS 2D* Normal 2D differential GPS
position fix
DGPS 3D* Normal 2D differential GPS
position fix
GPS W2D 2D WAAS position fix
GPS W3D 3D WAAS position fix
*: Only when connecting with the external DGPS
beacon receiver.
Turning the power off
Press and hold down the [POWER/BRILL] key
until the screen goes blank. The time
remaining until the power is turned off is shown
on the screen.

1-3
1.4 Adjusting Tone and
Brilliance
1. Press the [POWER/BRILL] key with a
touch-and-release action. The tone and
brilliance window appears.
TONE
BRILL
TONE
TONE
BRILL
BRILL
RETURN
Tone and display brilliance setting menu
Functions
Soft keys
Tone and brill window
2. Press ◄or ►to adjust display tone.
3. Press ▲or ▼to adjust display brilliance.
Note that tone and brilliance can also be
adjusted by soft keys. After pressing the
[POWER/BRILL] key, use the appropriate soft
key to adjust tone or brilliance. You can adjust
TONE by pressing the [POWER/BRILL] key
continuously.
Note: Tone or brilliance must be adjusted
within 10 seconds after pressing the
[POWER/BRILL] key or the tone and
brilliance adjustment screen will be
erased.
1.5 Plotter Displays
There are four types of plotter displays: Plotter
display, Navigation data display, Steering
display and Highway display. For details, refer
to Chapter 2.
Plotter display, Navigation data
display
Press the [PLOT] key to display the Plotter
display and Navigation data display alternately.
[Plotter Display]
GPS 3D NAV
POS
COURSE
UP
ZOOM
OUT
ZOOMIN
NORTH
UP
BRIDGE
FISH
WP-002
[Nav Data Display]
GPS 3D
BEACON
INFO
SATINFO
ZOOM
TD
LAT/LON
DATE: MAY 24 2002 TIME 23:59:59
POSITION
34°56.789' N
135°56.789' E
RNG nm
27.2
BRG
245.0°
SPD kt
16.3
CSE
245.8°
DATUM: WGS-84
LAT
LON
TMP 68.8°F DEP 20.8ft
TRIP:123nm
Display modes (plotter, navigation data)

1-4
Steering display, Highway display
Press the [XTE/HIWAY] key to display the
Steering display, Highway display alternately.
[Steering Display]
[Highway Display]
GPS 3D EDIT
XT- LMT
XTE 000.02nm 0.1nm0.1nm
BRG
245.0°
CSE
TTG
RNG
SPD nm
kt
ETA
1h 59m 29th 14:50
234.5°27.2 13.6
260250240230
CROSS
TRACK
QP<01>
GPS 3D EDIT
XT-LMT
XTE 000.02nm 0.1nm0.1nm
HIGHWAY
001WPT
CSE
BRG
RNG
SPD
87.8°
94.6°
1.88nm
001WPT
YUUKI FISH01
10.0kt
Display mode (steering, highway)
1.6 Menu Operation, Soft
Keys
Most operations are carried out through the
menu. The menu is opened and closed with
the [MENU] key. Menus may be selected with
the five soft keys to the right of menus. Options
are selected with the cursor pad.
1. Press the [MENU] key to display the main
menu.
MENU
GPS 3D
CHART SETUP OPTIONS
GPS/DGPS/TD OPTIONS
DISPLAY OPTIONS
CONFIGURATION
Soft
keys
Main menu
2. Press appropriate soft key to display
desired menu. For example, press the
CHART SETUP OPTIONS soft key. The
menu in use appears at the top right corner
of the display.
CHART
SETUP
GPS 3D
CHART OFFSET
CHART DETAILS
TRACK CONTROL
RETURN
Chart setup menu
3. Select menu with the soft keys. For
examples press the TRACK CONTROL
soft key to display the TRACK CONTROL
menu.
GPS 3D
TRACK
CONTROL
DISPLAY TRACK ON
PLOT TIME
TIME INTERVAL 00m10s
DIST INTERVAL 00.10 nm
TRACK MEMORY 2000 POINTS
(MARK MEMORY) (3000) POINTS
TRACK : 0 / 2000 PTS used
MARK : 0 / 3000 PTS used
EDIT
ERASE
T & M
RETURN
TRACKING
TRACK STATUS
STOP
TRACK
Track control menu

1-5
4. Use the cursor pad to select item, and then
press the EDIT soft key. For example,
select PLOT. The plot window appears.
PLOT
TIME
DISTANCE
Plot window
5. Use the cursor pad to select option, and
then press the ENTER soft key.
6. Press the [MENU] key to finish.
1.7 Demonstration Display
The demonstration display provides simulated
operation of this unit. On the plotter display,
own ship tracks, at the speed selected, a figure
eight course or any course you enter, starting
from position entered. All controls are
operative; you may set destination, enter
waypoints, etc.
1. Press the [MENU] key, followed by the
CONFIGURATION and SYSTEM MENU
soft keys to open the system menu.
2. Press the DEMONSTRATION MODE key
to open the DEMO MODE menu.
GPS 3D RETURN
DEMO
MODE
EDIT
DEMO MODE
DEMO SPEED
DEMO COURSE
DEMO START LAT
DEMO START LON
OFF
00.0kt
000.0
34 44.000'N
135 21.000'E
Demo setting screen
3. Press ▲or ▼to select DEMO MODE.
4. Press the EDIT soft key to show the demo
mode window.
DEMO MODE
ON
OFF
Demo mode window
5. Press ▲to select ON.
6. Press the ENTER soft key or the [ENTER]
key.
7. Select DEMO SPEED and press the EDIT
soft key. Enter speed. Select digit with
◄/►and enter value with numeric key.
8. Press the ENTER soft key or the [ENTER]
key.
9. Select DEMO COURSE and press the
EDIT soft key. Select how you want the
courseline to be traced; by FIGURE 8 or
DIR.(direction). For DIR., enter course.
10. Press the ENTER soft key or the [ENTER]
key.
11. Select DEMO START LAT., and press the
EDIT soft key. Enter any latitude.
12. Press the ENTER soft key or the [ENTER]
key.
13. Select DEMO START LONG., and press
the soft key EDIT. Enter any longitude.
14. Press the ENTER soft key or the [ENTER]
key.
15. Press the [MENU] key.
16. Press the [PLOT] key to finish.
To cancel the demonstration display, set
DEMO MODE to OFF.

1-6
This page is intentionally left blank.

2-1
2. PLOTTER DISPLAYS
2.1 Presentation Modes
The plotter display mainly shows chart, ship’s
track, waypoints, and navigation data.
Three types of display presentations are
provided for the normal plotter display:
north-up, course-up and auto course-up. To
change the mode, use the presentation mode
selection soft key, which is the 3rd soft key
from the top on the plotter display. This soft key
changes NORTH UP, COURSE UP and AUTO
C. U.
North-up
Press the NORTH UP soft key to show the
north-up display. North (zero degree) is at the
top of the display and own ship is at the center
of the screen. Own ship marker is a filled circle.
This mode is useful for long-range navigation.
GPS 3D NAV
WPT
COURSE
UP
ZOOM
OUT
ZOOMIN
NORTH
UP
135°12.345' E
34°12.345' N SPD
CSE 16.3kt 245.8°
BRIDGE
FISH
002WP
Nav information
window
Course bar Functions for
soft key
Track
Own ship
marker
Current display mode
(north-up)
Icon (chart)
GPS status
Waypoint name
Waypoint mark
Plotter display, north-up mode
Course-up
Press the COURSE UP soft key to show the
course-up display. When destination which is
at the top of the screen is set, the north mark
appears at the upper left side of the screen
and points to north. A filled triangle marks own
ship’s position.
When destination is not set, the course or
heading is upward on the screen at the
moment the course-up mode is selected.
GPS 3D NAV
WPT
AUTO
C.U.
ZOOM
OUT
ZOOMIN
COURSE
UP
QP<01>
135°12.345' E
34°12.345' N SPD
CSE 16.3kt 245.8°
North Mark
Plotter display, course-up mode
Auto course-up
Press the AUTO C.U. soft key to show the
automatic course-up display. The course is at
the top of screen at the moment the course-up
mode is selected. When own ship is off its
intended course by 22.5° or more, it is
automatically brought back to perpendicular.
GPS 3D NAV
WPT
NORTH
UP
ZOOM
OUT
ZOOMIN
AUTO
C-UP
135°12.345' E
34°12.345' N SPD
CSE 16.3kt 245.8°
Auto course-up mode

2-2
2.2 Cursor
Turning on the cursor, shifting the
cursor
Press the cursor pad to turn the cursor on, and
the cursor appears at the own ship’s position.
Operate the cursor pad to shift the cursor. The
cursor moves in the direction of the arrow or
diagonal pressed on the cursor pad.
Cursor state determines what data is shown on
the display. Cursor position is displayed in
latitude and longitude or Loran or Decca TDs
(depending on menu setting) at the top of the
plotter display when the cursor is on.
GPS 3D CENTER
GOTO
CURSOR
COURSE
UP
ZOOM
OUT
ZOOMIN
NORTH
UP
135°12.345' E
34°12.345' N OS FROM 276.9° 16.45nm
Data displayed on the plotter
display when the cursor is on
Turning off the cursor, returning own
ship marker to screen center
The CENTER soft key turns off the cursor and
returns own ship marker to screen center.
2.3 Shifting the Display
The display can be shifted on the plotter
display.
1. Press the cursor pad to display the cursor.
2. Locate the cursor at a screen edge. The
screen shifts in the direction opposite of
cursor location.
2.4 Selecting Chart
Scale/Range
Chart scale (range) may be selected with the
soft key ZOOM IN or ZOOM OUT. ZOOM IN
expands the chart; ZOOM OUT shrinks it.
Note: When the display is expanded or shrunk
beyond the range of the chart card in
use NO CHART appears, along with the
appropriate chart icon. See the table in
below.
2.5 Mini Chart Cards
The mini chart cards contain nautical charts.
When you insert a suitable mini chart card in
the slot and your boat is near land, a chart
appears.
When a wrong card is inserted or a wrong
chart scale is selected, the land will be hollow.
Insert the proper card and select a suitable
chart scale. Chart icons appear to help you
select a suitable chart scale. The following
table shows the chart icons and their
meanings.
Chart icons and their meanings
Icon Meaning
Proper card is not inserted or
chart scale is too small. Press
the soft key ZOOM IN to
adjust chart scale.
Chart scale is too large. Press
the soft key ZOOM OUT to
adjust chart scale.
Suitable chart scale is
selected.

2-3
Indices and chart enlargement
When the ZOOM OUT soft key is used, you will
see several frames appear on the chart. These
frames are called indices and they show you
what parts of the chart can be enlarged in the
current picture range. The areas circumscribed
with smaller frames can be enlarged, but the
area enclosed by the largest frame cannot.
Sample chart (Japan and South Korea)
showing indices
Remarks on chart display
A chart will not be displayed in the following
conditions:
• When the chart scale is too large or too small.
• When scrolling the chart outside the indices.
When this happens, select proper chart scale.
Chart symbols
FURUNO mini chart card
The table below shows FURUNO mini chart
symbols and their meanings.
FURUNO chart symbols
Symbol Description
Summit
Wreck
Lighthouse
Lighted Buoy
Buoy
Radio Station
Position of Sounding
Obstruction
Fishing Reef
Platform
Anchorage

2-4
Comparison of FURUNO and Nav-ChartsTM
chart cards
metIONURUF™strahC-vaN
gnillorcstoD ytilibapac SEYSEY
pu-esruoC yalpsid SEYSEY
atadesuohthgiL noitatneserp 3*SEYSEY
rosructamooZ noitisop SEY1*
taegnaR rotauqE ,5.0,521.0 8402...2,1mn tfelsaemaS
tesffotrahC yrtneatad SEYSEY
gniretneCSEY2*
*1 Nav-ChartsTM chart may not center the
cursor perfectly.
*2 Nav-ChartsTM chart may not center own
ship's position perfectly.
*3 Newly designed chart cards containing
lighthouse data. Chart cards for North
America area are completed, and others
are in production.
*4 Nav-ChartsTM is the resistered trademark of
NAVIONICS INC.
Aid to navigation data
Selected FURUNO and Nav-ChartsTM mini
chart cards can show buoy and lighthouse data.
Simply place the cursor on the lighthouse or
buoy mark.
Place the cursor on
a lighthouse or buoy mark.
Placing the cursor on the mark
NAVAID: /FL 6S 12M
FROM OS 52.38nm 48.0°
Period (ex.: 6 seconds)
Visibility in nautical
mile (ex.: 12 miles)
FL : Flashing
F : Fixed light
F FL : Fixed and Flashing light
MO : Morse code light
Oc : Occulting light
Example of data displayed
Range and bearing
from own ship
Example of buoy, lighthouse data
Port service icons (Nav-ChartsTM
cards)
Selected Nav-ChartsTM mini chart cards show
by icons services available at ports. Use the
cursor pad to place the cursor on the sailboat
icon (denotes a port or harbor), and then press
the [ENTER] key. The services available
appear at the top of the display.
DGPS 3D CANCEL
NORTH
UP
FIRST AID
Sailboat mark (Port)
Detailed information of service
selected
List of services
at the port selected
Plotter display showing
Nav-ChartsTM port service display