Furuno 1724C User Manual

MODEL 1724C/1734C, GD-1720C OPERATOR'S MANUAL

OPERATOR'S MANUAL

Marine Radar

MODEL 1724C/1734C

Color Video Plotter

GD-1720C

C

9-52 Ashihara-cho,
Nishinomiya 662-8580, JAPAN

Telephone:[phone]
Fax: [phone]

All rights reserved. Printed in Japan

Pub. No. OME-35550

Your Local Agent/Dealer

FIRST EDITION : APR. 2005

(Elemental Chlorine Free)

The paper used in this manual
is

elemental chlorine free.

VX2

(HIMA ) M1704C SER & GD1720C

http://www.furuno.co.jp/

SAFETY INSTRUCTIONS

WARNING

ELECTRICAL SHOCK HAZARD

Do not open the equipment.

Only qualified personnel
should work inside the
equipment.

Do not disassemble or modify the
equipment.

Fire, electrical shock or serious injury can
result.

Immediately turn off the power at the
switchboard if the equipment is emitting
smoke or fire.

Continued use of the equipment can cause
fire or electrical shock. Contact a FURUNO
agent for service.

Keep heater away from equipment.

WARNING

Radio Frequency
Radiation Hazard

The radar antenna emits electromagnetic
radio frequency (RF) energy which can be
harmful, particularly to your eyes. Never
look directly into the antenna aperture from
a close distance while the radar is in
operation or expose yourself to the trans­mitting antenna at a close distance.

Distances at which RF radiation levels of
100 and 10 W/m
table below.

Note: If the antenna unit is installed at a
close distance in front of the wheel house,
your administration may require halt of
transmission within a certain sector of
antenna revolution. This is possible - Ask
your FURUNO representative or dealer to
provide this feature.

2

exist are given in the

A heater can melt the equipment's power
cord, which can cause fire or electrical
shock.

Use the proper fuse.

Fuse rating is shown on the equipment.
Use of a wrong fuse can result in damage
to the equipment.

CAUTION

A warning label is attached to the equip­ment. Do not remove the label. If the
label is missing or damaged, contact
a FURUNO agent or dealer about
replacement.

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

MODEL

1724C

1734C

Distance to

100 W/m

Nil

0.40 m

2

point

Distance to

2

10 W/m

Worst case 1.50 m

Worst case 4.00 m

point

CAUTION

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.

NOTICE

The brilliance of the LCD is adjustable
to match a wide variety of lighting
conditions. However, its maximum
setting may not be sufficiently bright
to permit viewing of the display with
polarized sunglasses.

i

TABLE OF CONTENTS

FOREWORD ...................................vii

SYSTEM CONFIGURATIONS .........ix

1. OPERATIONAL OVERVIEW.. 1-1

1.1 Operating Controls ..................................1-1

1.1.1 Display unit controls........................ 1-1

1.1.2 Remote controller............................ 1-3

1.2 Inserting a Chart Card.............................1-4

1.3 Turning the Unit On/Off ...........................1-5

1.4 Display Brilliance, Panel Brilliance, Hue.1-6

1.4.1 Display brilliance, panel brilliance.... 1-6

1.4.2 Hue ..................................... 1-7

1.5 Selecting a Display..................................1-8

1.5.1 Display modes ................................ 1-8

1.5.2 Selecting a display .......................... 1-9

1.5.3 Switching control in combination and

overlay screens ................................... 1-10

1.5.4 Selecting image source..................1-11

1.6 Cursor pad, Cursor................................1-12

1.7 Entering the MOB Mark, Setting MOB as

Destination...................................................1-13

1.8 Data Boxes............................................1-14

1.8.1 Showing, hiding data boxes with soft

key ................................... 1-14

1.8.2 Rearranging data boxes................ 1-14

1.8.3 Temporarily erasing a data box ..... 1-14

1.9 Function Keys........................................1-15

1.10 Simulation Display...............................1-16

2. RADAR OPERATION ............. 2-1

2.1 Radar Display..........................................2-1

2.2 Transmitting, Stand-by ............................2-2

2.3 Tuning......................................................2-2

2.4 Adjusting the Gain...................................2-2

2.5 Reducing Sea Clutter ..............................2-3

2.5.1 How the A/C SEA works.................. 2-3

2.5.2 Adjusting the A/C SEA..................... 2-4

2.6 Reducing Precipitation Clutter.................2-4

2.7 Range Scale............................................2-5

2.8 Pulselength..............................................2-6

2.9 Presentation Mode ..................................2-7

2.9.1 Selecting a presentation mode........ 2-7

2.9.2 Description of presentation modes.. 2-8

2.10 Measuring the Range............................2-9

2.10.1 Measuring range by range rings ....2-9

2.10.2 Measuring range by cursor ............2-9

2.10.3 Measuring range by VRM ............2-10

2.10.4 Various VRM operations..............2-10

2.11 Measuring the Bearing ........................2-11

2.11.1 Measuring bearing by cursor........ 2-11

2.11.2 Measuring bearing by EBL........... 2-11

2.11.3 Various EBL operations................ 2-11

2.12 Erasing the Heading Line, North Marker....

.................................................2-12

2.13 Reducing Noise Interference...............2-12

2.14 Rejecting Radar Interference..............2-13

2.15 Zoom .................................................2-14

2.15.1 Zooming radar targets..................2-14

2.15.2 Zooming ARP, TTM targets ..........2-14

2.16 Shifting the Picture ..............................2-15

2.16.1 Manual shift.................................2-15

2.16.2 Automatic shift .............................2-15

2.17 Using the Offset EBL...........................2-16

2.17.1 Predicting collision course ...........2-16

2.17.2 Measuring range & bearing between

two targets .................................2-17

2.18 Echo Trails...........................................2-18

2.18.1 Trail time .................................2-18

2.18.2 Starting echo trails .......................2-19

2.18.3 Trail gradation..............................2-20

2.18.4 Trail color .................................2-20

2.19 Echo Stretch........................................2-21

2.20 Echo Averaging ...................................2-22

2.21 Outputting TLL Data ............................2-23

2.22 Guard Alarm ........................................2-24

2.22.1 Setting a guard alarm zone..........2-24

2.22.2 When the alarm is violated….......2-25

2.22.3 Cancelling the guard alarm..........2-25

2.23 Watchman............................................2-25

2.23.1 How watchman works..................2-25

2.23.2 Turning on/off watchman..............2-26

2.23.3 Setting watchman stand-by interval ....

.................................2-26

2.24 Waypoint Marker .................................2-27

2.25 ARP, TTM Operation ...........................2-28

2.25.1 Activating/deactivating ARP, TTM 2-29

ii

2.25.2 Acquiring and tracking targets (ARP)..

.................................2-29

2.25.3 Displaying target number (ARP, TTM).

.................................2-31

2.25.4 Terminating tracking of ARP targets....

.................................2-31

2.25.5 Setting vector attributes (ARP) .... 2-32

2.25.6 Displaying past position (ARP) ....2-33

2.25.7 ARP, TTM target data ..................2-34

2.25.8 CPA/TCPA alarm (ARP)............... 2-35

2.25.9 Lost target alarm (ARP)...............2-36

2.25.10 Showing, hiding ARP target tracks....

....................................2-36

2.26 Interpreting the Radar Display ............2-37

2.26.1 False echoes ............................... 2-37

2.26.2 SART (Search and Rescue

Transponder) .................................2-38

2.26.3 Racon (Radar Beacon)................ 2-39

3. PLOTTER OPERATION ......... 3-1

3.1 Plotter Displays .......................................3-1

3.1.1 Full-screen plotter display................ 3-1

3.1.2 Nav graphic display .........................3-3

3.1.3 Highway display...............................3-6

3.1.4 Nav data display..............................3-7

3.2 Presentation Mode ..................................3-8

3.3 Shifting the Display..................................3-9

3.4 Chart Scale..............................................3-9

3.5 Chart Cards .............................................3-9

3.5.1 Chart card overview......................... 3-9

3.5.2 Indices and chart enlargement....... 3-10

3.5.3 Navionics charts............................ 3-11

3.5.4 C-MAP charts ................................ 3-14

3.6 Working with Track................................3-18

3.6.1 Displaying track ............................. 3-18

3.6.2 Stopping, restarting plotting of own ship

track ....................................3-19

3.6.3 Changing track color...................... 3-19

3.6.4 Track plotting method and interval for

own ship track ....................................3-20

3.6.5 Changing own ship track/mark

distribution setting ..................................3-21

3.6.6 Erasing track .................................3-22

3.7 Marks, Lines ..........................................3-24

3.7.1 Entering a mark, line...................... 3-24

3.7.2 Changing mark attributes...............3-24

3.7.3 Selecting line type .........................3-25

3.7.4 Erasing marks, lines ......................3-26

3.8 Waypoints............................................. 3-27

3.8.1 Entering waypoints........................ 3-27

3.8.2 Editing waypoint data.................... 3-30

3.8.3 Erasing waypoints......................... 3-32

3.8.4 Changing waypoint mark size

(Navionics GOLD).................................. 3-33

3.8.5 Searching waypoints..................... 3-34

3.9 Routes .................................................. 3-35

3.9.1 Creating routes.............................. 3-35

3.9.2 Connecting routes......................... 3-38

3.9.3 Inserting waypoints........................ 3-39

3.9.4 Removing waypoints from a route. 3-40

3.9.5 Erasing routes............................... 3-41

3.10 Navigation........................................... 3-41

3.10.1 Navigating to a “quick point”........ 3-41

3.10.2 Navigating to waypoints............... 3-42

3.10.3 Navigating to ports, port services 3-43

3.10.4 Following a route......................... 3-45

3.10.5 Canceling route navigation.......... 3-48

3.11 Alarms ................................................ 3-49

3.11.1 Audio alarm on/off ....................... 3-49

3.11.2 Arrival alarm ................................ 3-50

3.11.3 Anchor watch alarm..................... 3-51

3.11.4 XTE (Cross-Track Error) alarm .... 3-52

3.11.5 Speed alarm................................ 3-52

3.11.6 Proximity alarm............................ 3-53

3.11.7 Trip alarm ................................. 3-53

3.11.8 Grounding alarm (C-MAP

specification) .................................... 3-54

3.11.9 Alarm information........................ 3-55

3.12 Resetting Trip Distance ...................... 3-57

4. VIDEO SOUNDER OPERATION ..

........................................... 4-1

4.1 Sounder Displays ....................................4-1

4.1.1 Selecting a sounder display............. 4-1

4.1.2 Description of sounder displays....... 4-2

4.1.3 Selecting screen split method in

combination displays................................ 4-6

4.2 Automatic Sounder Operation.................4-6

4.2.1 How the automatic sounder works... 4-6

4.2.2 Types of automatic sounder modes. 4-6

4.2.3 How to enable automatic sounder

operation ...................................... 4-7

4.3 Manual Sounder Operation .....................4-7

4.3.1 Selecting the manual mode............. 4-7

4.3.2 Selecting display range................... 4-7

4.3.3 Adjusting the gain............................ 4-8

iii

4.3.4 Shifting the range............................ 4-8

4.4 Measuring Depth, Time...........................4-9

4.5 Reducing Interference.............................4-9

4.6 Reducing Low Level Noise....................4-10

4.7 Erasing Weak Echoes...........................4-11

4.8 White Marker .........................................4-12

4.9 Picture Advance Speed.........................4-12

4.9.1 Advancement independent of ship’s

speed ................................... 4-12

4.9.2 Advancement synchronized with ship’s

speed ................................... 4-13

4.10 Display Colors .....................................4-14

4.11 Alarms .................................................4-15

4.11.1 Audio alarm on/off ....................... 4-15

4.11.2 Bottom alarm............................... 4-16

4.11.3 Fish alarm ................................. 4-16

4.11.4 Fish alarm (B/L)........................... 4-17

4.11.5 Water temperature alarm............. 4-17

4.11.6 When an alarm setting is violated... .....

................................... 4-18

4.12 Water Temperature Graph...................4-19

4.13 Changing Pulse Repetition Rate.........4-19

4.14 Saving Sounder Picture to an SD Card .....

.................................................4-20

4.15 Interpreting the Sounder Display ........4-20

4.15.1 Zero line ................................. 4-20

4.15.2 Bottom echo................................ 4-21

4.15.3 Fish school echoes ..................... 4-22

4.15.4 urface noise/Aeration .................. 4-22

5. ................................................ 5-1

6. DATA TRANSFER .................. 6-1

6.1 Memory Card Operations........................6-1

6.1.1 Deleting all data from memory cards

(other than chart data).............................. 6-1

6.1.2 Saving data to a memory card......... 6-2

6.1.3 Playing back data from a memory card

..................................... 6-3

6.2 Uploading, Downloading Data.................6-4

6.2.1 Setting communication software on the

PC ..................................... 6-4

6.2.2 Uploading or downloading data....... 6-4

6.3 Loading Waypoint Data from Yeoman.....6-7

6.4 Receiving Data Via Network Equipment.6-8

6.5 Outputting Data Through the Network ....6-9

7. CUSTOMIZING YOUR UNIT .. 7-1

7.1 General Setup.................................7-1

7.2 Radar Setup ............................................7-4

7.2.1 Radar display setup .........................7-4

7.2.2 Radar range setup...........................7-7

7.2.3 Function key setup...........................7-8

7.3 Plotter Setup..........................................7-10

7.3.1 Navigation options .........................7-10

7.3.2 Function key setup......................... 7-11

7.4 Chart Setup ...........................................7-14

7.4.1 Chart offset....................................7-14

7.4.2 Navionics GOLD chart attributes....7-15

7.4.3 C-MAP chart attributes...................7-16

7.5 Data Boxes Setup..................................7-22

7.6 Hot Page Setup.....................................7-23

7.7 Navigator Setup.....................................7-24

7.7.1 Navigation data source..................7-24

7.7.2 GPS receiver setup (Set equipped with

GP-310B/320B) ....................................7-26

7.7.3 TD display setup............................7-29

7.8 Nav Data Display Setup ........................7-32

7.9 Sounder Setup.......................................7-33

7.9.1 System setup.................................7-33

7.9.2 Sensor setup .................................7-36

7.9.3 Sounding range, zoom range, bottom

lock range ....................................7-37

7.9.4 Function key setup.........................7-38

7.10 Nav Graphic Display Setup.................7-40

8. MAINTENANCE,

TROUBLESHOOTING .................. 8-1

8.1 Preventive Maintenance..........................8-1

8.2 Replacement of Batteries........................8-2

8.3 Replacement of Fuse ..............................8-2

8.4 Replacing the Magnetron........................8-3

8.5 Simple Troubleshooting...........................8-3

8.5.1 General ......................................8-3

8.5.2 Radar ......................................8-4

8.5.3 Plotter ......................................8-4

8.5.4 Sounder ......................................8-5

8.6 Diagnostics..............................................8-6

8.6.1 Memory I/O test ...............................8-6

8.6.2 Test pattern......................................8-8

8.6.3 Keyboard, remote controller test ....8-10

8.7 GPS Status Display...............................8-11

8.8 Clearing Memories ................................8-12

8.9 Error Messages .....................................8-13

APPENDIX ................................. AP-1

Menu Overview ................................... AP-1

ALARM key ........................................... AP-9

iv

Geodetic Chart List...................................AP-10

Icons ......................................................... AP-11

SPECIFICATIONS........................SP1

INDEX...........................................IN-1

v

COMPLIANCE WITH R&TTE DI RECTIVE 1999/5 /EC

vi

This radar complies with the R&TTE Directive 1999/5/EC. In accordance with Article 6-3 of this
directive, FURUNO intends to put this radar on the market of the following countries in EU as
well other markets.

Austria, Belgium, Cyprus, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Ireland, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Slovenia, Spain, Sweden, The
Netherlands, United Kingdom, Iceland, Norway

FOREWORD

A Word to the Owner of the Model 1724C/1734C Series
Marine Radar, GD-1720C Color Video Plotter

FURUNO Electric Company thanks you for purchasing the Model 1724C/1734C Series
Marine Radar, GD-1720C Color Video Plotter. We are confident you will discover why the
FURUNO name has become synonymous with quality and reliability.

For over 50 years FURUNO Electric Company has enjoyed an enviable reputation for
quality and reliability throughout the world. This dedication to excellence is furthered by our
extensive global network of agents and dealers.

Your equipment is designed and constructed to meet the rigorous demands of the marine
environment. However, no machine can perform its intended function unless properly
installed and maintained. Please carefully read and follow the operation and maintenance
procedures set forth in this manual.

We would appreciate feedback from you, the end-user, about whether we are achieving our
purposes.

Thank you for considering and purchasing FURUNO.

Features

The 1724C/1734C Radar Series and the GD-1720C Video Plotter work within our network
system called the “NavNet.” Each product has an IP address to communicate with NavNet
compatible products within the network, using TCP/IP protocol through an Ethernet
10BASE-T network.

The main features are as follows:

•

Bright 7” screen visible even under direct sunlight.

•

User friendly operation with combination of discrete keys, soft keys, and cursor pad.

•

Accepts the following SD chart cards: NAVIONICS GOLD or C-MAP NT MAX charts,
depending on specification. All names mentioned above are registered trademarks of
their respective companies.

•

Fast chart redraw.

•

Built-in NavNet interface circuit board.

•

12-channel GPS Receiver GP-310B with highly accurate position fixing optionally
available, GP-310B and 320B (WAAS capability).

•

User programmable function keys.

•

Video sounder picture available with connection of the optional Network Sounder.

•

ARP function (when connecting with MODEL 1824C series)

vii

Notice

•

No part of this manual may be copied or reproduced without written permission.

•

If this manual is lost or worn, contact your dealer about replacement.

•

The contents of this manual and equipment specifications are subject to change without
notice.

•

The example screens (or illustrations) shown in this manual may not match the screens
you see on your display. The screen you see depends on your system configuration and
equipment settings.

•

This manual is intended for use by native speakers of English.

•

FURUNO will assume no responsibility for the damage caused by improper use or
modification of the equipment or claims of loss of profit by a third party.

viii

SYSTEM CONFIGURATIONS

All NavNet products incorporate a “network circuit board” to integrate each NavNet product
on board through an optional LAN cable (Ethernet 10BASE-T). Each NavNet product is
assigned an IP address to enable transfer of images between other NavNet products. For
example, video plotter pictures can be transferred to a radar and vice versa. Pictures
received via the NavNet may be adjusted at the receiving end.

The number of display units which may be installed depends on the number of network
sounder connected. For a system incorporating three or more products, a “hub” is required
to process data.

For one network sounder: one radar and three plotters, or four plotters
For two network sounder: one radar and two plotters, or four plotters

NavNet system (Model 1724C/1734C)

Display Unit

Remote
Controller
RMC-100

(ex. MODEL 1724C)

RDP-148

Antenna Unit

GPS receiver

GP-310B/320B

E/S

Navigator

External buzzer

PC

Echo sounder

Heading

sensor

Other NavNet unit

(GD-1720 etc.)

Network sounder

ETR-6/10N

12-24 VDC

100/110/115/220/230 VAC

NavNet system (Model 1724C/1734C)

Rectifier

PR-62

1φ, 50/60 Hz

ix

Single-unit NavNet system (GD-1720C)

GP-310B/320B

GPS receiver

Other NavNet unit

(MODEL 1724C etc.)

Display Unit

RDP-148

Remote
Controller
RMC-100

Network sounder

ETR-6/10N

12-24 VDC

Single-unit NavNet system (GD-1720C)

External buzzer

Echo sounder

Heading sensor

Rectifier

PR-62

100/110/115/220/230 VAC

1φ, 50/60 Hz

x

Two-unit NavNet system

Antenna Unit

Radar data

GP-310B/320B

Plotter data

Two-unit NavNet system

xi

Three-or-more-unit NavNet system (Max. 4 display units)

Antenna Unit

Radar data

GP-310B/320B

Plotter data

HUB

Sounder data

Note: The picture disappears
10 seconds after the NavNet

Network sounder

ETR-6/10N

Three-or-more-unit NavNet system

cable is disconnected from a
"sub" NavNet display unit.

xii

1. OPERATIONAL OVERVIEW

This chapter provides the basic information needed to get you started using your radar,
video plotter.

1.1 Operating Controls

1.1.1 Display unit controls

Display unit controls

The radar, video plotter, sounder and chart systems are operated with the controls of the
display unit (and the remote controller). Ten keys are labeled and they provide the function
shown on their labels. The five soft keys provide various functions according to current
operating mode. The ENTER knob mainly functions to register selections on the menu and
adjust the EBL, VRM and gain. The Cursor pad’s main function is to move the cursor
across the screen. When you correctly execute an operation, the unit generates a beep.
Invalid operation causes the unit to emit three beeps.

Selects display mode.

Momentary press:

Registers own ship’s
position as a waypoint.

Press three seconds:

Marks man overboard
position.

Soft keys

Shows or hides the soft
keys, function keys,
nav data alternately.

Cursor pad
Selects menu items and options;
shifts cursor. Press, release and
press again to change setting
consecutively.

Opens/closes the alarm menu.
Clears data; erases selected mark.

Opens/closes the main menu.

Selects a range.
ENTER knob

Push: Registers options on menus.
Rotate: Selects character; adjusts sensitivity

(sounder, radar); chooses menu items and options.
Displays the soft keys for EBL/VRM.
Radar: Displays the soft keys for adjustment of
gain, A/C SEA, A/C RAIN and FTC.

Sounder: Adjusts gain.

Long press: Turns power on/off.
Momentary press: Opens the

display for adjustment of brilliance,
etc. For radar, switches STBY and TX.

Chart slot

1-1

1. OPERATIONAL OVERVIEW

Soft keys

The function of the five soft keys changes according to the operation. Their labels for their
current functions are shown on the screen to the left of the keys. To hide or show the soft
keys, press the HIDE/SHOW key. Each press of the key shows preset soft keys, user
function keys or turns off navigation information (at the top of the screen).

SOFT
KEYS

Display unit

Some soft keys show the current setting of a soft key in reverse video as shown below.

34° 22. 3456'N 359.9°M
080° 22. 3456'E

19.9 kt 99.9 nm

16.0nm

TRIP

NU

MARK

ENTRY

MODE

NTH UP

NAV

POS

Current option
shown in reverse video

D.BOX

WPT 002

FISH

BRIDGE

ON/OFF

Plotter displays

1-2

1.1.2 Remote controller

ABC

RANGE

1

DEF

DISP

2

Operating distance
90°: Up to 5 m
±45°: Up to 3 m

SAVE

Replace the batteries (AA) when the

MOB

distance from which the display
unit can be operated shortens.

3

GHI

1. OPERATIONAL OVERVIEW

JKL

4

MNO

Note: The remote controller may

65

PQR

become damaged if dropped.
Mishandling of the remote

STU

7

VWX

98

YZ&

controller is not covered by
the warranty.

0

MENU

TX /STBY

ALARM

SK4 SK5

GAIN

CENTER

CNTL

ACQ

HIDE /SHOW

EBL / VRM

MARK
ENT

BRILL

WPT

’#

ENT

CLEAR

TONE

SK3SK1 SK2

Remote controller

.

Key Function Key Function

RANGE Same as RANGE key on

display unit.

DISP Same as DISP key on

display unit.

SAVE MOB Same as SAVE/MOB key on

display unit.
Ten keys Enter alphanumerics. BRILL Adjusts display brilliance.
EBL/VRM Same as EBL/VRM key on

display unit.
GAIN Same as GAIN key on

display unit.
WPT Displays “alphabet” WPT list

on plotter display.

MARK ENT Same as MARK ENTRY soft

key.
CENTER Returns own ship to screen

center on plotter display.
CNTL Switches control between

displays on combination

displays.

ENT Same as ENTER knob on

display unit.

CLEAR Same as CLEAR key on

display unit.

MENU Same as MENU key on

display unit.

TONE Not used.

TX/STBY Toggles radar between

standby and transmit.

ACQ Acquires radar target.

(Requires radar source
equipped with ARP.)

ALARM Same as ALARM key on the

display unit.

HIDE/SHOW Same as HIDE/SHOW key

on display unit.
SK1 – SK5
(soft keys)

Same as soft keys on display

unit.

1-3

1. OPERATIONAL OVERVIEW

1.2 Inserting a Chart Card

Your unit reads SD cards, in the following formats: Navionics GOLD Chart cards or C-MAP
NT MAX chart cards, depending on the type of display unit you have. Insert the appropriate
chart card for your area as follows:

1. Open the chart drive.

Chart slot

Display unit

2. Insert chart card label side up.

3. Close the lid.

To remove chart card, push the card once and then pull it out.

Note 1: Do not remove a card while the chart is being drawn. This may cause the
equipment to freeze.

Note 2: Do not insert or remove a card while the power is on. This may cause the
equipment to freeze.

Note 3: For multiple display units, do not use the same chart card type in more than one
display unit.

Note 4: Remove the card with care; rough handling can damage the card and destroy its
contents.

1-4

1. OPERATIONAL OVERVIEW

1.3 Turning the Unit On/Off

Press the POWER/BRILL key to turn the unit on. A beep sounds and then the equipment
shows the startup NavNet screen (about 20 seconds), the product information screen,
startup test results and chart usage disclaimer. During this period the equipment is
inoperative. The startup test checks the ROM, RAM, internal battery and backup data for
proper operation, displaying the results for each as OK or NG (No Good). If NG appears an
appropriate message appears on the screen. For any NG, try to press any key to go to the
chart disclaimer screen, then perform the diagnostic test as shown in the paragraph “8.6
Diagnostics.”

For start up with the radar display, the magnetron takes from 60 seconds to 90seconds
(depending on radar model) to warm up before the radar can be operated. The time
remaining for warming up of the magnetron is counted down at the center of the display.

You may press any key at the chart disclaimer screen to show the last-used display, or wait
several seconds to let the equipment do it for you.

To turn the unit off, press and hold down the POWER/BRILL key until the screen goes dark
(approx. 3 sec.). To protect the LCD attach the hard cover. Note that the network sounder
will be turned off approx. three minutes after turning off the power. This is due to the
system’s electrical characteristics.

Note: The first time you turn on the power (or any time the power is applied after a memory
reset), you are asked if you want to start the simulation mode, which provides simulated
operation of the equipment after the installation mode selection. Push the ENTER knob to
start the simulation mode, or press the CLEAR key to start normal operation. For further
details about the simulation mode, see the paragraph “1.10 Simulation Display.”

1-5

1. OPERATIONAL OVERVIEW

1.4 Display Brilliance, Panel Brilliance, Hue

You can adjust display brilliance, panel brilliance and hue as shown below.

1.4.1 Display brilliance, panel brilliance

1. Press the POWER/BRILL key momentarily. A set of soft keys for adjustment of

brilliance and hue appear.

Current selection is higtlighted.

.125nm
SP

.250/ 319.9

H-UP

DISPLAY BRILLIANCE

M

°

8

BRILL
CONTST

DISPLY
BRILL

PANEL
BRILL

HUE

RADAR

STBY

RETURN

Brilliance adjustment soft keys

2. Press the DISPLY BRILL or PANEL BRILL soft key as appropriate. An adjustment
window appears at the bottom of the screen. This window shows the name of the item
selected for adjustment plus current brilliance level, by bar graph.

DISPLAY BRILLIANCE

8

Display brilliance Panel brilliance

PANEL BRILLIANCE

8

Display brilliance and panel brilliance windows

3. Adjust the ENTER knob, clockwise to raise the setting or counterclockwise to decrease
it. You may also use the soft key pressed at step 2. Eight levels of display brilliance and
panel brilliance are available.

4. Hit the RETURN soft key to finish.

Note 1: If the unit is turned off with minimum brilliance, the screen will be dark at the next
power-up. Press the POWER/BRILL key consecutively to adjust the brilliance.

Note 2: This equipment does not have a contrast control.

1-6

1. OPERATIONAL OVERVIEW

1.4.2 Hue

You may select the colors for the radar, plotter and overlay displays as below.

1. Press the POWER/BRILL key momentarily.

2. Press the HUE soft key to show the hue setting window.

HUE

▲

¡

DAY

¡

NIGHT

¡

TWILIGHT

¤

MANUAL SET

▼

Hue window

3. Operate the Cursor pad to select hue desired, referring to the table below. MANUAL

SET follows the color settings on the CHART DETAILS menu for the plotter and the
RADAR DISPLAY SETUP menu for the radar.

Night Day Twilight

Characters Red Black Green
Radar ring Red Green Green
Radar echo Orange Multi Orange
Background Black White Blue**
Landmass (plotter) Orange* Light-orange Orange

* = Beige and light-beige on C-MAP display unit.

**= Black for Overlay screen

4. Hit the RETURN soft key to finish.

Note: When using the overlay screen, the own ship track will be hidden if the radar
background and own ship track are blue and the “MANUAL SET” hue setting is used. In this
case, set HUE to other position and then return to “MANUAL” to show the own ship track in
black.

1-7

1. OPERATIONAL OVERVIEW

1.5 Selecting a Display

1.5.1 Display modes

If you have a radar, navigator and network sounder five full-screen displays are available:
radar, plotter, echo sounder, nav data and overlay. In addition to the full-screen display, you
can divide the screen into halves and thirds to show two and three sets of images on a
combination display.

Full screen

(Ex. radar)

Combination screen

(Ex. radar + sounder)

Overlay screen

(Radar and plotter,

color model only.

Requires L/L data)

Display screens

The table below shows the displays available with each screen type.

Screen type and available display screen

Full screen Combination scr e en options

(half- or thirds-screen)

Plotter, radar, sounder,
nav data, overlay

Plotter, radar, sounder,
compass (or wind), highway,
compass (or wind)/highway,
nav data, overlay

Overlay screen
options

Radar + plotter

1-8

1. OPERATIONAL OVERVIEW

1.5.2 Selecting a display

1. Press the DISP key to show the display screen selection window. The icons of modes

not available are shaded. HOTPAGE 1-HOTPAGE 5 are user-arrangeable displays
called “hot pages,” which you can configure as you like. For further details, see the
paragraph “7.6 Hot Page Setup.”

Basic display

RADAR PLOTTER SOUNDER NAV DATA OVRLAY

HOTPAGE1 HOTPAGE2 HOTPAGE3HOTPAGE4 HOTPAGE5

screens

Hot pages

· TURN KNOB TO SELECT MODE
AND PUSH KNOB TO ENTER.

· PUSH ANY SOFT KEY TO
SELECT IMAGE SOURCE.

Display screen selection window

2. Rotate the ENTER knob to select a basic display screen or a hot page screen.

3. Push the ENTER knob.

4. If you select a basic display screen, a group of appropriate combination displays appear.
In the example below, the radar combination screens are shown.

PUSH ENTER KNOB.

Radar combination screen selection window

5. Rotate the ENTER knob to select display desired.

6. Push the ENTER knob to finish.

1-9

1. OPERATIONAL OVERVIEW

1.5.3 Switching control in combination and overlay screens

A soft key is provided in relevant combination and overlay screens to switch control
between displays. In the example below, the CNTRL PLOTTR and CNTRL RADAR soft
keys enable switching control between the plotter and sounder screens in the
plotter/sounder combination display.

3nm

12

LP

H-UP

ST-BY

34° 22. 3456'N 359.9°M TRIP NU
080° 22. 3456'E

16.0nm

19.9 kt 99.9 nm

SIGNAL
PROC.

RADAR
DISPLY

NAV

359.9

+

FUNC

11.7nm

TARGET

CNTRL

RADAR

CNTL

CNTRL

RADAR

RADAR

To adjust
plotter

°

R

CNTRL

PLOTTR

To adjust

3nm

12

LP

H-UP

ST-BY

34° 22. 3456'N 359.9°M TRIP NU
080° 22. 3456'E

16.0nm

19.9 kt 99.9 nm

MARK
ENTRY

MODE

NTH UP

NAV

359.9

+

POS

11.7nm

CNTRL

PLOTTR

radar

WP-002

FISH

WP-002

FISH

Radar display selected Plotter display selected

How to switch control between modes in the plotter/sounder combination display

°

R

1-10

1. OPERATIONAL OVERVIEW

1.5.4 Selecting image source

When more than one network radar or network sounder is connected to the equipment, you
may select an image source for each as shown below. This is not necessary when only one
network radar or network sounder is connected.

1. Press the DISP key.

2. Press any soft key to show the following display.

▲

RADAR SOURCE
1 (HOST NAME: NAVNET1)
SOUNDER SOURCE*
SOUNDER _

IP ADDRESS

172.031.003.003

DEVICE NUMBER
2 (HOST NAME: NAVNET2)

IF THERE IS MORE THAN
ONE NETWORK RADAR OR
ECHO SOUNDER, YOU MAY
SELECT THE IMAGE
SOURCES FOR DISPLAY.

*: Do not change this setting.

SELECT
SOURCE

EDIT

RETURN

Select source menu

3. Use the Cursor pad to select RADAR SOURCE, SOUNDER SOURCE or AUX
SOURCE as appropriate, then press the EDIT key.

RADAR SOURCE

▲

¤

1 (NAVNET1)

¡

2 (NAVNET2)

¡

3 (NAVNET3)

¡

4 (NAVNET4)

▼

Radar source

Radar source and sounder source windows

4. Use the Cursor pad to choose source.

5. Push the ENTER knob to set.

6. Press the DISP key to finish.

7. Turn the power off and on again.

SOUNDER SOURCE

▲

¤

ETR0 (SOUNDER)

¡

ETR1 (SOUNDER1)

¡

ETR2 (SOUNDER2)

¡

ETR3 (SOUNDER3)

¡

ETR4 (SOUNDER4)

¡

ETR5 (SOUNDER5)

¡

ETR6 (SOUNDER6)

¡

ETR7 (SOUNDER7)

¡

ETR8 (SOUNDER8)

¡

ETR9 (SOUNDER9)

▼

Sounder source

1-11

1. OPERATIONAL OVERVIEW

1.6 Cursor pad, Cursor

The Cursor pad functions to shift the cursor, for measurement of range and bearing to a
location (radar) and latitude and longitude position (plotter). Roll the Cursor pad to shift the
cursor. The cursor moves in the direction of Cursor pad rotation.

Cursor

.125nm
SP

.250/ 319.9

M

°

H-UP

SIGNAL
PROC

RADAR
DISPLY

NAV
FUNC

TARGET

ZOOM &
D. BOX

359.9°R

+

0.24nm

Radar display

Cursor, cursor data

Cursor data
L/L position,
Range and
bearing from
own ship to
cursor

Cursor

34° 22. 3456'N 272.4°M

+

080° 22. 3456'E

16.0nm

Plotter display

TRIP

15.9 nm 99.9 nm

NU

MARK

ENTRY

MODE

NTH UP

CENTER

GOTO
CURSOR

D. BOX
ON/ OFF

1-12

1. OPERATIONAL OVERVIEW

1.7 Entering the MOB Mark, Setting MOB as

Destination

The MOB mark functions to mark man
overboard position. You can inscribe the
mark from any mode except nav data,
when playing back data or conducting
any test. Note that this function requires
position data.

Range, bearing

Note: The function of the SAVE/MOB
key depends on the setting of SAVE

Man
overboard

Current
position

MOB KEY FUNCTION in the GENERAL
SETUP menu. The description below
shows the procedure using the default
setting. For further details, see Save

MOB concept

MOB Key Function on page 7-2.

1. Press and hold down the SAVE/MOB key for about three seconds when someone falls
overboard. The display shows the waypoint number being saved (youngest empty
waypoint number, 001-999) followed by the MOB confirmation window.
Time remaining is counted down while pressing the SAVE/MOB key.

MOB
mark

M

162.5°

O

0.49 nm

B

MOB Data Box
Bearing and range
to MOB position

M

(MOB)

M

WAYPOINT SAVED!

XXXWPT
CONTINUE PUSHING
FOR MOB!

XXX = Waypoint number

CONTINUE PUSHING
FOR MOB!

XX SEC

XX = Time remaining is counted down.

MAN OVER BOARD!
GO TO MOB?
YES ... PUSH ENTER KNOB
NO ... PUSH CLEAR KEY

MOB mark messages

2. Push the ENTER knob to select the MOB position as the destination, or press the
CLEAR key to only mark current ship’s position as a waypoint. If you select the MOB

position as destination;

•

A full-screen radar, plotter or overlay appears depending on the display in use, with
the range set to 0.5 nm. Further, the waypoint marker appears on the radar display.

•

The MOB mark “MOB” appears at the MOB position and a light-blue line runs
between it and current position. This line shows the shortest course to the MOB
position.

•

Range and bearing to the MOB position are shown in the MOB data box.

To erase an MOB mark from the plotter display, you must first erase its corresponding
waypoint. Place the cursor on the MOB mark, then press the CLEAR key followed by
pushing the ENTER knob to erase the waypoint. Then, repeat to erase the MOB mark.

1-13

1. OPERATIONAL OVERVIEW

1.8 Data Boxes

Data boxes, providing navigation data, may be shown on any full-screen display. Up to six
data boxes (two in case of large characters) may be shown, and the default data boxes are
position (in latitude and longitude), course over ground, speed over ground and trip log. The
user may choose which data to display, where to locate it, and show or hide it as desired. In
addition, data boxes may be set independently for each display mode (plotter, radar,
sounder). For how to select data for the data boxes, see the paragraph “7.5 Data Boxes
Setup.”

.125nm
SP

.250/ 319.9

M

°

H-UP

MARK

ENTRY

MODE

NTH UP

NAV

POS

TRIP LOG

177nm

POSITION
47

°

58.535'N

122

°

36.496'W

COG

323.6

°

M

SOG

20.0

D.BOX

ON /OFF

kt

350.4

°

0.000 nm

M

Data boxes

Data boxes

1.8.1 Showing, hiding data boxes with soft key

Plotter: D. BOX ON/OFF

→

Radar: ZOOM & D. BOX

D. BOX ON/OFF (EBL/VRM data box, cursor data

box also shown/hidden)

→

Sounder: AUTO/D. BOX

D. BOX ON/OFF

1.8.2 Rearranging data boxes

You may select the location for data boxes as follows:

1. Using the Cursor pad, place the cursor inside the data box you wish to move. As the
cursor enters the box it changes to a “hand”. Push the ENTER knob, and the hand
changes to a fist, meaning the box is correctly selected.

2. Use the Cursor pad to move the data box to the location desired, then push the ENTER
knob.

1.8.3 Temporarily erasing a data box

If a data box is obscuring a desired object, you may temporarily erase the box. Use the

Cursor pad to place the cursor inside the data box you wish to erase, then press the
CLEAR key. To redisplay the box, press the D. BOX soft key twice to display it.

1-14

1. OPERATIONAL OVERVIEW

1.9 Function Keys

The function keys provide for one-touch execution of a desired function. The default
function key settings are as shown in the table below.

Default Setting, Key Label Function

Key

#1 Heading line on/off, HL Track on/off, TRK TLL output, TLL
#2 Rings on/off, RNG Edit mark/line, EML Clutter, CLT
#3 Echo trail, TRL Ruler, RUL Signal level, SLV

Radar Plotter Sounder

#4 Offcenter, OFC Add new waypoint,

Noise limiter, NL

ADD

#5 STBY/TX, TX Waypoint

Picture advance, PA

alphanumeric list, ALP

1. Press the HIDE/SHOW key to replace the preset soft key labels with the function key

labels.

.125nm
SP

.250/ 319.9

°M

TARGET

H-UP

H
L

R
N

G

T

R

L

S
F
T

D

B
X

Function
keys

34° 22. 3456'N 359.9°M

080° 22. 3456'E

19.9 kt 99.9 nm

16.0nm

002WP

FISH

BRIDGE

TRIP

NU

T
R
K

E

M

L

R
U

L

A
D
D

A
L
p

Function
keys

359.9°R

+

0.24nm

Radar

Plotter

Function keys

2. Press function key desired.

Note: Function keys can be individually programmed for the plotter, radar and sounder
displays. For further details see the following:

Radar: paragraph 7.2.3
Plotter: paragraph 7.3.2
Sounder: paragraph 7.9.4

1-15

1. OPERATIONAL OVERVIEW

1.10 Simulation Display

The simulation display, for use by service technicians for demonstration purposes, provides
simulated operation to help acquaint you with the many features your unit has to offer. It
allows you to view and control a simulated plotter, radar and sounder picture, without
position-fixing equipment, network radar or a network sounder. Most controls are operative,
thus you may practice setting destination, enter waypoints, measure range and bearing to a
target, etc. Three simulation displays are provided for both the radar and echo sounder.

The simulation icon (SIM) appears when any simulation mode is active.

To start the simulation display;

1. Press the MENU key.

2. Press the SYSTEM CONFIGURATION, SYSTEM SETUP and SIMULATION SETUP
soft keys in that order.

SIM

RADAR

LIVE

PLOTTER

LIVE

SOUNDER

LIVE

SPEED

00.0kt

COURSE

000.0°

LATITUDE

45°35.000’N

LONGITUDE

123°00.000’W

START DATE & TIME

00:00 01.APR.01

GET RADAR SIMULATION DATA

NO

SETUP

EDIT

RETURN

Simulation setup menu

3. Follow appropriate procedure on the next several pages. To stop the simulation mode
and return to normal operation, choose LIVE for radar, sounder or plotter.

Radar

NavNet display unit-generated ech oes or user data

1. Select RADAR, then press the EDIT soft key.

RADAR

▲

¡

BUILT IN DATA 1

¡

BUILT IN DATA 2

¡

USER DATA

¤

LIVE

▼

2. Select BUILT IN DATA 1 or 2 for internally generated echoes or USER DATA for
user-saved radar data. Push the ENTER knob.

3. Press the MENU key to close the menu.

1-16

1. OPERATIONAL OVERVIEW

PLOTTER

▲

¡

SIMULATION

¤

LIVE

▼

¡

NavNet radar antenna-generated echoes (not available with the GD-1720C)

1. Select GET RADAR SIMULATION DATA, then press the EDIT soft key.

2. Select YES, then push the ENTER knob to erase simulation data and get new data. The

message “NOW GETTING SIMULATION DATA. Do not turn off display unit.” appears
while the unit is receiving radar data.

Note: If the network radar could not be found “Radar source is not found. Cannot get
demo data.” appears. And if the radar is not active, the message “Radar is not active.
Cannot get demo data.” is displayed. Check that the radar is plugged in and its signal
cable is firmly fastened.

3. Select RADAR, then press the EDIT soft key.

4. Select BUILT IN DATA 2, then push the ENTER knob.

5. Press the MENU key to close the menu.

Plotter

1. Select PLOTTER, then press the EDIT soft key.

2. Select SIMULATION, then push the ENTER knob.

3. Select SPEED, then press the EDIT soft key.

4. Enter speed (setting range, 0-99 kt, default speed, 0 kt) with

the alphanumeric keys, then push the ENTER knob.

5. Select COURSE, then press the EDIT soft key.

6. Select “8 FIGURE” to trace the simulated ship’s track in a
figure-eight course, or enter your own course at DIRECTION. To enter course, use the
Cursor pad to select digit, and enter value with the alphanumeric keys.

7. Press the ENTER soft key.

8. Select LATITUDE, then press the EDIT soft key.

°

9. Enter latitude (setting range, 85

N-85°S, default setting, 45°35.000’N), then push the

ENTER knob.

10. Select LONGITUDE, then press the EDIT soft key.

°

11. Enter longitude (setting range, 180

E-180°W, default setting, 125°00.000’W), then push

the ENTER knob.

12. Select START DATE & TIME, then press the EDIT soft key.

13. Enter start date and time, then push the ENTER knob.

14. Press the MENU key to close the menu.

Sounder

1. Select SOUNDER, then press the EDIT soft key.

2. Select BUILT IN DATA (internally generated echoes) or
ETR (network sounder-generated echoes), then push the

ENTER knob.

Note: The depth, shift, bottom-zoom, bottom-lock and

bottom discrimination cannot be shown in the BUILT IN

SOUNDER

▲

¡

BUILT IN DATA

¡

ETR

¤

LIVE

▼

DATA mode.

3. Press the MENU key to close the menu.

1-17