Furuno GP-1640F Operator's Manual

GPS/PLOTTER/SOUNDER

GP-1640F

Your Local Agent/DealerYour Local Agent/Dealer

9-52 Ashihara-cho,9-52 Ashihara-cho,
Nishinomiya, JapanNishinomiya, Japan

Telephone :Telephone : [phone]-65-2111
Telefax :Telefax : 0798-65-42000798-65-4200

FIRST EDITION :FIRST EDITION : JUN.JUN. 20022002

Printed in JapanPrinted in Japan

A

ll rights reserved.

A

ll rights reserved.

B :B :AUG.AUG. 28,200228,2002

PUB.No.PUB.No. OME-44231OME-44231

*00080930100**00080930100*

*00080930100**00080930100*

(( HIMAHIMA ))

GP-1640FGP-1640F

* 0 0 0 8 0 9 3 0 1 0 0 ** 0 0 0 8 0 9 3 0 1 0 0 *

*OME44231B00**OME44231B00*

*OME44231B00**OME44231B00*

* O M E 4 4 2 3 1 B 0 0 ** O M E 4 4 2 3 1 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 equip­ment 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 equip­ment. 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: Warning Label (1)
Type: 86-003-1011-0
Code No.: 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, how­ever this is not an indication of malfunc­tion.

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 Pow e r On /Off..............1-2

1.4 Adjusting Tone and Brilliance ........ 1-3

1.5 Plotter Displays.............................1-3

1.6 Sounder Display............................1-4

1.7 Menu Operation, Soft Keys ...........1-4

1.8 Demonstration Display.................. 1-5

2. VIDEO SOUNDER OPERATION

2.1 Principle of Operation....................2-1

2.2 Sounder Display Description......... 2-2

2.3 Plotter/Sounder Display................. 2-4

2.4 Dual-frequency Display................. 2-4

2.5 Automatic Sounder Operation ....... 2-5

2.6 Manual Sounder Operation ...........2-5

2.7 Measuring Depth........................... 2-6

2.8 Suppressing Interference ..............2-7

2.9 Suppressing Low Level Noise ....... 2-7

2.10 Erasing Weak Echoes...................2-8

2.11 Selecting Picture Advance Speed .2- 8

2.12 Alarms...........................................2-9

3. PLOTTER DISPLAYS

3.1 Presentation Modes ...................... 3-1

3.2 Cursor........................................... 3-2

3.3 Shifting the Display........................3-2

3.4 Selecting Chart Scale/Range........ 3-2

3.5 Mini Chart Cards...........................3-2

3.6 Navigation Data Display................ 3-5

3.7 Steering Display............................3-6

3.8 Highway Display............................ 3-7

3.9 Changing Operation Mode ............3-8

3.10 Navigation Trip Distance ............... 3-8

4. TRACK

4.1 Displaying Track............................4-1

4.2 Stopping/Restarting Plotting

of Trac k..........................................4-2

4.3 Track Plotting Method, Interval.......4-2

4.4 Changing Track Memory Capacity.4-3

4.5 Erasing Track.................................4-3

5. MARK

5.1 Entering Marks...............................5-1

5.2 Changing Mark Attributes ..............5-2

5.3 Changing Mark Size.......................5-2

5.4 Erasing Marks................................5-3

5.5 Displaying Track and Mark Points. .5-3

6. WAYPOINTS

6.1 Entering Waypoints........................6-1

6.2 Erasing Individual Waypoints.........6-4

6.3 Changing Waypoint Data...............6-4

6.4 Waypoint Mark Size.......................6-5

6.5 Changing Waypoint Position on the

Plotter Display................................6-5

6.6 Searching Waypoints.....................6-5

7. ROUTES

7.1 Entering Routes.............................7-1

7.2 Connecting Routes ........................7-2

7.3 Inserting, Removing Waypoints......7-3

7.4 Creating Track-based Routes........7-4

7.5 Erasing Routes..............................7-5

8. NAVIGATION

8.1 Navigating to “Quick Points”...........8-1

8.2 Navigat ing to Waypoints

(waypoint list).................................8-2

8.3 Navigating to Ports, Port Services..8-2

8.4 Following a Route..........................8-4

8.5 Canceling Navigation.....................8-6

9. PLOTTER ALARMS

9.1 Introduction....................................9-1

9.2 Audio Alarm On/Off........................9-1

9.3 Arrival Alarm..................................9-1

9.4 Anchor Watch Alarm......................9-2

iv

9.5 XTE (Cross Track Error) A l a rm......9-2

9.6 Speed Alarm..................................9-3

9.7 Proximity Alarm..............................9-3

9.8 Alarm Information..........................9-4

10. SAVING AND LOADING DATA
TO/FROM MEMORY CARD

10.1 Formatting Memory Cards ...........10-1

10.2 Saving Data to Memory Card.......10-2

10.3 Loading Data from Memory Card.10-3

11. CUSTOMIZING YOUR UNIT

11.1 CHART SETUP OPTIONS menu 11-1

11.2 DISPLAY OPTIONS menu...........11-2

11.3 GPS/DGPS/TD OPTIONS menu..11-5

11.4 SOUNDER SETUP OPTIONS menu

....................................................11-8

11.5 CONFIGURATION menu...........11-10

12. USING C-MAP NT MODEL

12.1 Inserting Chart Card ....................12-1

12.2 Cursor and Data Display .............12-1

12.3 Tid a l Information...........................12-2

12.4 Navigating to Ports, Port Services.12-3

12.5 Setting Chart Setup Options..........12-5

12.6 Selecting Chart Scale/Range........12-6

12.7 Displaying Program Number.........12-7

13. MAINTENANCE &

TROUBLESHOOTING

13.1 Maintenance................................13-1

13.2 Replacement of Fuse, Battery......13-2

13.3 Simple Troubleshooting...............13-2

13.4 Error Messages ...........................13-3

13.5 Diagnostic Tests...........................13-4

13.6 Clearing Memories.......................13-6

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-1640F Owners

Congratulations on your choice of the
FURUNO GP-1640F GPS
PLOTTER/SOUNDER. We are confident you
will see why the FURUNO name has become
synonymous with qualit y and reliability.

For over 50 years FURUNO Electric Company
has enjoyed an enviable r eputation 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 design ed and constructed to
meet the rigorous demands of the marine
environment. However, no machine can
perform its intended funct ion 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-164 0F are

• Comprehensive navigation data disp lays.

• Bright 5.6-inch LCD with temperature

compensated tone and brilliance control.

• Automatic coastline chart loading.

• Position display in latitude and lon git ude ,

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, Proximit y.

• Man overboard feature records latitude and

longitude coordinates at time of man
overboard.

• “Highway” display provides gr aph ic

presentation of ship’s track and is useful for
monitoring cross track error.

• WAAS capability

• Automatic or manual video sounder opera tion

.

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-1640F

Ship's mains
100/110/115/220/230 VAC
1 , 50/60 Hz

Rectifier

PR-62

Transducer

vii

WHAT IS WAAS?

WAAS, available in North America, is a provider in t he worldwide SBAS (Satellite Based
Augmentation System) navigation system. SBAS pr ovides 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 (Mult i-Functional Satellite Augment ation Syst em) 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

178°E

131

134

122

120

Initial operation time
WAAS: 2003

EGNOS: 2004
MSAS: 2005

At the time of this software release, SBAS is st ill 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 r esponsibility for the use of the signal for other
than the above stated purpose. It is t he user 's re sponsibilit y 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

ABC1DEF2GHI

3

JKL

4

MNO

5

PQR

6

STU

7

VWX

8

YZ&

9

CLEAR

_'#

0

MENU

HIDE

SHOW

WPT
RTE

SNDR

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.

Selects video sounder display.

Displays the waypoint & route
menu.

Selects plot display.

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.

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 seq uence

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 brill
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. Tone can be
adjusted 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 3.

Selecting display

Press the [PLOT] key. Each time this key is
pressed, the display mode changes in the
sequence shown below.

[Plotter Display]

GPS 3D

NAV
POS

COURSE

UP

ZOOM

OUT

ZOOM

IN

NORTH

UP

BRIDGE

FISH

WP-002

[Nav Data Display]

GPS 3D

BEACON

INFO

SA T

INFO

ZOOM

TD

LA T/LON

DATE: MAY 23 2001 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

LA T

LON

TMP 68.8°F DEP 20.8ft

TRIP:123nm

[Steering Display]

[Highway Display]

GPS 3D

EDIT
XT - LMT

XTE 000.02nm

0.1nm0.1nm

BRG

245.0°

CSE
TTG

RNG
SPD

nm
kt

ET A

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

HIGHWA Y

001WPT

CSE

BRG
RNG
SPD

87.8°

94.6°

1.88nm

001WPT

YUUKI

FISH01

10.0kt

Display modes (plotter)

1-4

1.6 Sounder Display

Three sounder displays are available: Normal,
Dual-frequency display and Plotter/Sounder
display. You may select a sounder display with
the [SNDR] key.

GPS 3D

PLOT

COURSE

UP

ZOOM

OUT

ZOOM

IN

NORTH

UP

0

50

100

150

SNDRSNDR

PLOT

GPS 3D

PLOT

SNDR
FUNC

GAIN

RANGE

SOUNDER

50

100

150

SNDR

MODE/
FREQ

SHIFT

0

50k

0.0

[Plotter/Sounder Display]

[Normal Sounder Display]

GPS 3D

PLOT

MODE

GAIN
200kHz

RANGE

SOUNDER

DUAL

50

100

150

SNDR

SHIFT

0

50k

0.0

50

100

150

GAIN
50kHz

[Dual-frequency Display]

200k

Display mode (Sounder displ ay)

1.7 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

SOUNDER SETUP OPTIONS

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

DGPS 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.

1-5

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

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.

1.8 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. VIDEO SOUNDER OPERATION

2.1 Principle of Operation

The video sounder determines the distance
between its transducer and underwater objects
such as fish, lake bottom or seabed and
displays the results on screen. It does this by
utilizing the fact that an ultrasonic wave
transmitted through water travels at a nearly
constant speed of 4800 feet (1500 meters) per
second. When a sound wave strikes an
underwater object such as fish or sea bottom,
part of the sound wave is reflected back toward
the source (transducer). Thus by calculating
the time difference between the transmission
of a sound wave and the reception of the
reflected sound wave, the depth to the object
can be determined. The entire process begins
in the display unit. Transmitter power is sent to
the transducer as a short pulse of electrical
energy. The electrical signal produced by the

transmitter is converted into the water. Any
returning signals from intervening objects
(such as a fish school) are received by the
transducer and converted into an electrical
signal. The signals are then amplified in the
amplifier section, and finally, displayed on
screen.

The picture displayed is made up of a series of
vertical scan lines, one for each transmission.
Each line represents a snapshot of what has
occurred beneath the boat. A series of
snapshots are accumulated side by side
across the screen, and the resulting contours
of the bottom and fish between the bottom and
surface are displayed.

Underwater conditions and video sounder displ ay

2-2

2.2 Sounder Display
Description

The figure below shows all indications and
marks which may appear on the normal
sounder display.

SOUNDER

GAIN

RANGE

SNDR
FUNC

SHIFT

MODE/
FREQ

Level
bar

Functions for

soft keys
Variable
Range
Marker

Depth scale

Tx frequency

GPS status

Depth

20

30

40

50

30

20

10

0

Temp.
scale

Water
temp.
Graph

Water
temp.
display

15.0

50k

GPS 3D

54.0

Indications on the norm al sounder display

Note: The water temperature graph can be set

on or off. The temperature scale is fixed
between 20-80°F (0 to 30°C).

The normal sounder display shows either the
50 kHz picture or 200 kHz picture. To switch
between these pictures, do the following:

1. Press the [SNDR] key several times to
show the normal sounder display.

SOUNDER

GAIN

RANGE

SNDR
FUNC

SHIFT

MODE/
FREQ

20

30

40

50

30

20

0

50k

GPS 3D

Normal sounder display

2. Press the MODE/FREQ soft key.

The display changes as shown in the right

column.

RETURN

SELECT

50kHz

SELECT

200kHz

SOUNDER

20

30

40

50

30

20

0

50k

GPS 3D

MODE/FREQ

AUTO CRUISING
AUTO FISHING
MANUAL

Mode/freq window

3. Press the SELECT 200kHz (or SELECT
50kHz) soft key.

4. Press the RETURN soft key to manually
close the window, or wait 10 seconds and
the window automatically closes.

50 kHz picture

The sounder uses ultrasonic pulses to detect
bottom conditions. The lower the frequency of
the pulse, the wider the detection area.
Therefore, the 50 kHz frequency is useful for
general detection and judging bottom
condition.

200 kHz picture

The higher the frequency of the ultrasonic
pulse the better the resolution. Therefore, the
200 kHz frequency is ideal for detailed
observation of fish school.

50 kHz

200 kHz

Comparisons of

transducer frequencies

2-3

Selecting sounder display mode

There are five display modes from which to
choose: normal, marker zoom, bottom zoom,
bottom lock and A-scope. To select a display,
press the soft key SNDR FUNC on the normal
sounder display to show the sounder function
window, and press ▲ or ▼ to select the display.
Press the RETURN soft key to close the
window.

SOUNDER FUNCTION

NORMAL
MARKER ZOOM
BOTTOM ZOOM
BOTTOM LOCK
A-SCOPE

Sounder function window

Marker zoom display

This mode expands a selected area of the
normal sounder picture to full vertical size of
the screen on the left-half window. You may
specify the portion to expand by operating the
VRM (Variable Range Marker), which you can
shift with ▲ or ▼. The area between the VRM
and zoom marker is expanded. The length of
the segment is equal to one division of the
depth scale.

200k

162

0

50

100

150

200

90.0

100

200

150

Marker zoom
display

Fish school

Normal
sounder
display

Fish
school

This part
is zoomed.

Zoom marker

VRM

GPS3D

Marker-zoom displa y

plus normal sounder display

Bottom-zoom display

This mode expands bottom and bottom fish
echoes two to five times to vertical size of the
screen, and is useful for determining bottom
hardness. A bottom displayed with a short echo
tail usually means it is a soft, sandy bottom. A
long echo tail means a hard bottom.

200k

0

50

100

150

40.0

160

100

120

140

180

Bottom zoom
display

Bottom

Normal
sounder
display

Zoom
marker

DGPS3D

162

200

Bottom-zoom display p lus normal sounder

display

Bottom-lock display

The bottom-lock display provides a
compressed normal picture on the right half of
the screen and a 5 or 10 meter (10 or 20 feet)
wide layer in contact with the bottom is
expanded onto the left half of the screen. This
mode is useful for bottom discrimination.

200k

162

0

50

100

150

200

68.3

0

10

20

30

40

50

This part
is zoomed.

Fish
school

Bottom-lock
display

Fish
school

Zoom
marker

Normal
sounder
display

GPS3D

Bottom
display flat

Bottom-lock display

plus normal sounder display

Note: The zoom marker is not displayed in the

default setting. It may be turned on in
the DISPLAY SETUP2 menu.

2-4

A-scope display

This display shows echoes at each
transmission with amplitudes and tone
proportional to their intensities, on the right 1/3
of the screen. It is useful for estimating the kind
of fish school and seabed composition.

200k

0

50

100

150

200

68.3

Normal
sounder
display

A-scope
display

DGPS3D

160

A-scope display plus norm al

sounder display

2.3 Plotter/Sounder Display

This display provides the plotter display on the
left part of the screen and the normal sounder
display on the right part. It is useful for
searching fish schools at cruising speed.
The width of the sounder display can be
selected between standard (approx. 20 mm)
and wide (approx. 40 mm).

1. Press the [MENU] key and the SOUNDER
SETUP OPTIONS soft key. The sounder
setup menu appears.

2. Press ▼ to select E/S WINDOW.

3. Press the EDIT soft key to show the E/S
WINDOW window.

E/S WINDOW

STD
WIDE

E/S window

4. Press ▲ or ▼ to select STD or WIDE.
STD: The width of the sounder display is

approx. 20 mm (Default setting).

WIDE: The width is approx. 40 mm.

5. Press the [ENTER] key or the ENTER soft
key.

GPS 3D

PLOT

COURSE

UP

ZOOM

OUT

ZOOM

IN

NORTH

UP

0

50

100

150

SNDRSNDR

PLOT

Plotter Display

Sounder

Display

Plotter/Sounder display

2.4 Dual-frequency Display

The 50 kHz picture appears on the left; the 200
kHz picture on the right. This display is useful
for comparing the same picture with two
different sounding frequencies.

GPS 3D

MODE

GAIN
200kHz

RANGE

SOUNDER

DUAL

100

SNDR

50k

0.0

200k

20

40

60

GAIN
50kHz

20

40

60
80

SHIFT

Dual-frequency display

2-5

2.5 Automatic Sounder
Operation

Automatic sounder operation is useful when
you are preoccupied with other tasks and do
not have time to adjust the display.

How the automatic sounder works

The automatic sounder function automatically
selects the proper gain, range scale and clutter
suppression level according to depth. It works
as follows:

•

Range changes automatically to locate the
bottom on the lower half of screen. It jumps
to one step shallower range when bottom
echoes reach a half way point of the full
scale from top and to one step deeper range
when they come to the lower edge of scale.

•

The gain is automatically adjusted to display
the bottom echo in the color in the darkest
tone.

•

Clutter, which suppresses low level noise, is
automatically adjusted.

Two types of automatic modes

Two types of automatic sounder modes are
available: CRUISING and FISHING.
CRUISING is for tracking the bottom, and
FISHING is for searching fish schools.
CRUISING uses a higher clutter rejection
setting than FISHING therefore it is not
recommended for fish detection - weak fish
echoes may be erased by the clutter
suppression circuit.

How to enable automatic operation

1. To show the mode/freq window:

Normal sounder display:

Press the

MODE/FREQ soft key.

Plotter/sounder display:

Press the SNDR,

MODE/FREQ soft keys in order.

Dual-frequency display

: Press the MODE

soft key.

MODE/FREQ

AUTO CRUISING
AUTO FISHING
MANUAL

Mode/frequency window

2. Press ▲ or ▼ to select AUTO CRUISING
or AUTO FISHING.

3. Press the RETURN soft key to close the

window automatically, or wait 10 seconds
and the window closes automatically.

2.6 Manual Sounder

Operation

Manual operation is useful for observing fish
schools and bottom using fixed gain setting.
The gain, range and range shifting functions
used together give you the means to select the
depth you can see on screen. The basic range
can be thought of as providing a “window” into
the water column and range shifting as moving
the “window” to the desired depth.

Selecting the manual mode

1. Press the appropriate soft key to show the
mode/freq window.

2. Select MANUAL.

3. Press the RETURN soft key.

Selecting display range

Press the RANG soft key to show the range
window, and select range by the cursor. Press
the RETURN soft key to finish.

RANGE

15 ft
30 ft

60 ft
120 ft
200 ft
400 ft

1000 ft
2500 ft

Range window

2-6

Adjusting the gain

Press the GAIN soft key to show the gain
window, and press ▲ or ▼ to set the gain.
Current level is shown above the bar. Press
the RETURN soft key to finish.

GAIN

57

HIGH

LOW

Gain window

Note: On the dual-frequency display, the gain

can be independently set for 50 kHz and
200 kHz. This can be done with the
GAIN 50kHz and GAIN 200kHz soft
keys.

Normally, set the gain to the point where
excessive noise does not appear on screen.
Use a higher gain setting for greater depths
and a lower setting for shallow waters.

Gain too high Gain proper Gain too low

Examples of proper and improper gai n

Range shifting

The basic range may be shifted up or down as
desired.
Press the SHIFT soft key, and press ▲ or ▼ to
shift the basic range. Press the RETURN soft
key to finish.

Display

Shift

Shift concept

2.7 Measuring Depth

The VRM functions to measure the depth to
fish schools, etc., and it is always displayed.

1. Press ▲ or ▼ to shift the VRM.

2. Depth is shown just above the VRM.

SNDR
FUNC

SHIFT

GAIN

RANGE

SOUNDER

MODE/
FREQ

50k

GPS 3D

VRM

20

30

40

50

30

20

10

0

54.0

15.0

Depth to VRM

How to use the VRM

2-7

2.8 Suppressing
Interference

Interference from other acoustic equipment
operating nearby or other electronic equipment
on your boat may show itself on the display as
shown below.
To suppress interference, do the following:

1. Press the [MENU] key and the SOUNDER

SETUP OPTIONS soft key.

2. Select NOISE LIMITER and press the EDIT

soft key to show the noise limiter window.

NOISE LIMITER

OFF
NL1
NL2
NL3

Noise limiter windo w

3. Press ▲ or ▼ to select degree of

suppression desired; OFF, NL1, NL2 or
NL3. The higher number the greater the
degree of suppression.

4. Press the RETURN soft key and the

[SNDR] key to finish.

Interference from
other sounder

Electrical interference

Types of interference

Turn the noise limiter circuit off when no
interference exists, otherwise weak echoes
may be missed.

2.9 Suppressing Low Level
Noise

Dots may appear over most of screen. This is
mainly due to dirty water or noise. This noise
can be suppressed by adjusting CLUTTER on
the SOUNDER SETUP OPTIONS menu.

When the sounder mode is Auto, the clutter
suppression setting is fixed at AUTO. To
suppress low level noise in manual sounder
operation do the following:

1. Press the [MENU] key and the SOUNDER

SETUP OPTIONS soft key.

2. Select CLUTTER and press the EDIT soft

key to show the clutter window.

CLUTTER

3

Clutter window

3. Press ▲ or ▼ to select clutter rejection

level desired; 0 (OFF) through 9. The
higher the number the higher the degree of
suppression. Note that weak echoes may
not be displayed when the clutter circuit is
on.

4. Press the RETURN soft key and the

[SNDR] key to finish.

2-8

2.10 Erasing Weak Echoes

Dirty water or reflections from plankton may be
appeared on the display with small dots. These
weak echoes may be erased as follows:

1. Press the [MENU] key and the SOUNDER
SETUP OPTIONS soft key.

2. Select SIGNAL LEVEL, and press the EDIT
soft key to show the signal level window.

SIG LVL

OFF
SL1
SL2

Signal level window

3. Press ▲ or ▼ to select level of erasure;
OFF or signal level SL1 or SL3. The higher
the number the stronger the echo will be
erased.

4. Press the RETURN soft key and the

[SNDR] key to finish.

2.11 Selecting Picture
Advance Speed

The picture advance speed determines how
quickly the vertical scan lines run across the
screen. When selecting a picture advance
speed, keep in mind that a fast advance speed
will expand the size of the fish school
horizontally on the screen and a slow advance
speed will contract it.

1. Press the [MENU] key and the SOUNDER

SETUP OPTIONS soft key.

2. Select PICTURE ADVANCE, and press the

EDIT soft key to open the picture advance
window.

PICTURE ADVANCE

2/1
1/1
1/2
1/4
1/8
STOP

Picture advance window

The fractions in the window denote number of
scan lines produced per transmission. For
example, 1/8 means one scan line is produced
every eight transmissions. STOP freezes the
display and it is convenient for observing an
echo.

3. Press ▲ or ▼ to select speed desired.

4. Press the RETURN soft key and the

[SNDR] key to finish.

2-9

2.12 Alarm s

Bottom alarm

The bottom alarm sounds when the bottom
echo is within the alarm range set. To activate
the bottom alarm the depth must be displayed.

Fish (B/L) alarm

The bottom-lock fish alarm sounds when a fish
echo is within a predetermined distance from
the bottom.

Fish (normal) alarm

The normal fish alarm sounds when a fish
echo is within the preset alarm range.

Note: The sensitivity of the fish alarm can be

set on the SOUNDER SYSTEM SETUP
menu.

Water temperature alarm

There are two types of water temperature
alarms: WITHIN and WITHOUT. The WITHIN
alarm sounds when the water temperature is
within the range set; the WITHOUT alarm
sounds when the water temperature is higher
or lower than the range set. This alarm
requires water temperature data.

Activating/deactivating an al arm

1. Press the [ALARM] key to open the alarm
menu.

2. Press the NEXT PAGE soft key to show the
ALARM2 menu.

GPS 3D

ALARM2

EDIT

CLEAR
ALARM

ALARM INFORMATION

BOTTOM ALARM
FISH (B/L) ALARM
FISH (NORMAL)
TEMP. ALARM

OFF
OFF
OFF
OFF

NO ALARM

RETURN

Alarm2 menu

3. Select the menu item, and press the EDIT
soft key.

4. Select ON or OFF. For ON, use the cursor
pad and the numeric keys to set range.

5. Press the ENTER soft key.

When an alarm setting is violated…

When an alarm setting is violated the buzzer
sounds, and the speaker icon appears at the
bottom of the screen. You can silence the
buzzer with the [CLEAR] key. (However, the
buzzer will sound whenever the alarm setting
is violated.) Press the [ALARM] key to find out
which alarm has been violated. The offending
alarm is displayed in the ALARM
INFORMATION window. Press the CLEAR
ALARM soft key to erase the alarm indication.
The alarm icon remains displayed until all
violated alarms have been acknowledged.

2-10

This page is intentionally left blank.

3-1

3. PLOTTER DISPLAYS

3.1 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

ZOOM

IN

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 is
upward on the screen at the moment the
course-up mode is selected.

GPS 3D

NAV
WPT

AUTO

C.U.

ZOOM

OUT

ZOOM

IN

COURSE

UP

QP<01>

135° 12.345' E

34° 12.345' N

SPD

CSE

16.3kt

245.8°

Plotter display, course-up mode

Auto course-up

Press the AUTO C.U. soft key to show the
automatic course-up display. The course or
heading 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

ZOOM

IN

AUTO
C-UP

135° 12.345' E

34° 12.345' N

SPD

CSE

16.3kt

245.8°

Auto course-up mode

3-2

3.2 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.

DGPS 3D

CENTER

GO TO
CURSOR

COURSE

UP

ZOOM

OUT

ZOOM

IN

NORTH

UP

135° 12.345' E

34° 12.345' NOSFROM

276.9°

16.45nm

Data displayed on the plot t er

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.

3.3 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.

3.4 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.

3.5 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 meanin gs

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.

3-3

Indices and chart enlargement

When the soft key ZOOM OUT 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 Sout h 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

3-4

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...2,1

mn

tfelsaemaS

tesffotrahC

yrtneatad

SEYSEY

gniretneCSEY2*

*1 Nav-Charts

TM

chart may not center the

cursor perfectly.

*2 Nav-Charts

TM

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-Charts

TM

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.

GPS 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-Charts

TM

port service display