j Nav500 Instr

INSTRUCTION MANUAL

GPS NAVIGATORNWZ-4551

For further information contact :

HEAD OFFICE &

SALES DEPT.

Akasaka Twin Tower(MAIN),

17-22, Akasaka 2-chome, Minato-ku,

Tokyo 107-8432 JAPAN

Phone

Fax

Telex

CODE No.7ZPNA0115

MODEL DC-50-NWZ-4551

Made in JAPAN

Mar. 1998 (First Edition)

May. 1998 KP (2500)

: +81-3-3584-8711

: +81-3-3584-8715

: 0242-5420 JRCTOK J

MAIN PLANT 1-1, Shimorenjaku 5-chome, Mitaka-shi,


Phone

Fax

Telex

: +81-422-45-9111

: +81-422-45-9110

02822-351 JRCMTK J

MODE

MENU

MOB

DIMCONT

CLR PWR

EVENT

GOTO

OFF OFF

PUSH

GPS NAVIGATOR

GPS Navigator J-NAV500

1

General Information

Thank you for purchasing the GPS Navigator J-NAV500. This navigator obtains position data

from a GPS/DGPS receiver and can shows all types of marine navigation displays.

• Before attempting to operate this unit, read this instruction manual thoroughly to correctly and safely

operate this unit in accordance with the warning instructions and operation procedures in this manual.

• Keep this instruction manual in an easily accessible location so that you can refer to it in the event of

a failure or other problem.


2

Before you begin

Related symbolsIn this manual, and on the equipment, there are several labels to call your attention to impor-

tant items that, if not handled correctly, could present danger to yourself or property. The

labels used and their meaning are described below.

Read through the safety instructions and make sure you fully understand them before you

read the rest of the manual.

Indicates a situation which, if not avoided, could result in

death or serious injury and is extremely likely to cause

minor injury or property damage.

Indicates a situation which, if not avoided or handled

correctly, may result in injury or property damage, but not

likely to lead to serious personal injuries.

Symbol examples

Dangerousvoltage

Disassemblyprohibited

Prohibition

Remove plug! Instruction

WARNING

CAUTION

Equilateral triangles alert the user to a possible danger (danger or warning) that

may be caused by wrongful operation or misuse of this product.

The symbol inside the triangle graphically represents the actual danger. (The

example on the left warns the user of the danger of electric shock.)

White circles with a 45¡ slash angled downward from upper left to lower right

notifies the user that specific actions are prohibited to prevent possible danger.

The symbol inside the circle is a graphical representation of the actual prohibited

action. (The example on the left notifies the user that disassembly is prohibited.)

Black filled-in circles instruct the user to carry out a specific obligatory action to

prevent possible danger.

The symbol inside the circle is a graphical representation of the actual action to

be carried out. (The example on the left instructs the user to remove the plug from

the outlet.)


3

Safety Precautions

Do not disassemble or modify this unit. Otherwise, a fire,

an electrical shock, or a failure may occur.

Do not remove or insert the power cable with wet hands.

Otherwise, you may suffer from an electrical shock.

Do not use voltage other than 12 VDC.

Otherwise, a fire, an electrical shock, or a failure may

occur.

Do not fray, damage or modify the power cable. When a

heavy object is placed on the cable or the cable is heated,

pulled, or forcibly bent, the cable will be broken resulting in

a fire or an electrical shock.

Do not operate this unit while you are also steering the ves-

sel as this may lead to an accident.

In the event that smoking or burning odors are detected,

immediately terminate operation of the set and contact

our company, branch, or local office. Continuing opera-

tion as is may cause a fire or electrical shock. Never

attempt to service the interior of this set.

WARNING


4

This unit does not automatically assess position informa-

tion. It is the user’s responsibility to judge position and navi-

gational information.

Do not drop this unit into water. When water enters the unit,

a failure may occur.

When removing the power cord, be sure to remove the

power cord terminal correctly. If the power cord is pulled,

the cord may be damaged resulting in a fire or an electrical

shock.

When cleaning the surface, do not use any organic

solvent such as thinner or benzine, Otherwise, the

painting on the surface may be damaged.

For cleaning the surface, remove the dust and grease

with clean dry cloth.

See “List of Offices” on the back cover of this instruction manual for information on addresses and

telephone numbers of sales departments, subsidiaries, branch offices and service centers of Japan Radio

Co., Ltd.

CAUTION


5

Outside View


6

ContentsGeneral Information .............................................................................. 1Before you Begin ................................................................................... 2Safety Precautions ................................................................................ 3Outside View ......................................................................................... 5Definition of Terms ................................................................................ 81. Overview ..................................................................................... 10

1.1 Functions ................................................................................................................ 101.2 Features .................................................................................................................. 111.3 Equipment supplied ................................................................................................ 11

1.4 Structure ................................................................................................................. 121.5 Equipment connections .......................................................................................... 12

2. Names and Functions of Parts ................................................... 132.1 Operation panel ...................................................................................................... 132.2 Rear panel ............................................................................................................... 15

3. Installation................................................................................... 163.1 Display installation ................................................................................................. 16

3.1.1 Choosing the location.................................................................................. 173.1.2 Mounting the unit ........................................................................................ 17

3.2 Cable connections .................................................................................................. 19

3.2.1 GPS/DGPS receiver connection ................................................................. 193.2.2 Power cable connection .............................................................................. 193.2.3 Ground connection ...................................................................................... 21

3.3 EMC Installation & service guidelines ................................................................... 223.3.1 Installation ................................................................................................... 223.3.2 Check Before Going to Sea ......................................................................... 22

3.3.3 Servicing and Safety ................................................................................... 22

4. Operation .................................................................................... 234.1 Overview ................................................................................................................ 23

4.2 Turning the unit on/off ............................................................................................ 244.3 Selecting display language ..................................................................................... 254.4 Switching between Main Display Modes ............................................................... 26

4.5 Main Display Modes .............................................................................................. 284.5.1 POSITION display mode ............................................................................ 284.5.2 NAVIGATION display mode ...................................................................... 32

4.5.3 CDI display mode ....................................................................................... 324.5.4 PLOT display mode and setting the plot scale ............................................ 334.5.5 WAYPOINT display mode .......................................................................... 34

4.5.6 ROUTE display mode ................................................................................. 344.5.7 STATUS/SF display mode .......................................................................... 35

4.6 Basic menu selection operations ............................................................................ 37


7

4.7 Adjusting Contrast and Backlighting ..................................................................... 394.8 Setting Alarms (Arrival/Anchor/Off-course/DGPS) .............................................. 39

4.9 Navigation using direct route (GOTO) ................................................................... 414.10 Navigation according to route plan ........................................................................ 424.11 Entering current position as a waypoint [EVENT] ................................................ 43

4.12 Man-Overboard Mode ............................................................................................ 444.13 Position Display Mode/Position Correction/Geodetic System Correction/

Magnetic Compass Correction ............................................................................... 44

4.14 Setting Navigation Display Modes and Units ........................................................ 464.15 Setting CDI range and Display Time Format ......................................................... 474.16 Setting Plotting Information ................................................................................... 47

4.17 Entering Waypoints ................................................................................................ 484.17.1 Editing Waypoint Lists ................................................................................ 484.17.2 Storing waypoints ........................................................................................ 50

4.17.3 Erasing, copying and measuring waypoints ................................................ 524.17.4 Sorting waypoint list ................................................................................... 54

4.18 Setting Route Plans ................................................................................................ 54

4.18.1 Making a route plan .................................................................................... 554.18.2 Editing route plan ........................................................................................ 564.18.3 Erasing route plans ...................................................................................... 57

4.19 Setting GPS information ......................................................................................... 584.19.1 Setting positioning mode and averaging time ............................................. 584.19.2 Initializing GPS/DGPS receiver .................................................................. 59

4.19.3 TD initializing ............................................................................................. 604.19.4 Setting DGPS beacon .................................................................................. 61

4.20 Setting Data Output and transmit memory data ...................................................... 62

4.21 Displaying the Simulator Mode.............................................................................. 644.22 Performing Master Reset ........................................................................................ 65

5. Maintenance and Inspection ....................................................... 666 After-sales Service ...................................................................... 677. Disposal ...................................................................................... 68

7.1 Disposal of Navigator ............................................................................................. 687.2 Handling Used Lithium Batteries ........................................................................... 68

8. Specifications.............................................................................. 69Appendices ......................................................................................... 71

Appendix A Message list .............................................................................................. 71Appendix B Geodetic system Table .............................................................................. 73

Appendix C NMEA0183 output sentence and data format ........................................... 75Appendix D Waypoint/Route Plan Data In/Output ....................................................... 80Appendix E Waypoint List ............................................................................................ 81

How to address inquiries List of Offices Back Cover


8

Definition of Terms

GPS satellite GPS stands for “Global Positioning System.” One of several

satellites launched by the US Department of Defense to estab-

lish a military navigational aid system.

DGPS The process of correcting the inaccuracies of GPS position data

from GPS satellites by receiving a beacon receiver (via a bea-

con station) in a base station whose exact position is known.

Position fixing The process of deriving the current location of a vessel using

GPS or DGPS receiver.

2D (two-dimensional) Position fixing using satellites and height information.

3D (three-dimensional) Position fixing using satellites information only from four or

more satellites

HDOP Indicates the accuracy of position fixing. The smaller the num-

ber shows the more accurate the position fixing.

When the satellites are grouped together, HDOP increases and

position fixing accuracy is poor; when the satellites are far apart,

HDOP decreases and position fixing accuracy is enhanced.

Loran C time difference Information for deriving current position by calculating the time

difference between a master station and secondary station of the

Loran C system. (Information designed for users experienced

in the use of the Loran C navigation system)

TD Time difference. The time difference between a master station

and secondary station of the Loran C system.

Route plan A plan that registers a series of waypoints in a navigational path.

CDI Course Deviation Indicator. Information that indicates the ex-

tent you have strayed from the route of deviation and the direc-

tion to steer.

Arrival alarm An alarm indicating that the vessel has come within the set dis-

tance of a waypoint.

Anchor alarm An alarm indicating that the vessel has deviated more than the

set distance from a waypoint.

Off-course alarm An alarm indicating that the vessel has deviated more than a set

distance from a predetermined course.


9

Automatic sequencing mode Function that automatically steps from one waypoint to the next

when the arrival perpendicular point has been detected.

Manual sequencing mode The unit sounds the arrival alarm and the operator will manually

press key to step to next leg in the route plan when it is safe to

do so.

Default value Factory set value

NMEA0183 National Marine Electrical Association 0183. Association es-

tablishing international standards for communications between

navigational equipment and the standard established by NMEA.

Master reset A function for clearing all settings and returning to the factory

set values (default values). Two types of master resets are pro-

vided. A soft reset clears all data except for waypoint and route

plan data. A hard reset clears all data.

Initialization It takes up to 20 minutes to GPS position fixing when it is used

for the first time or after a master reset has been performed.

This time can be reduced by entering initialization values such

as estimate position, time and antenna height.


10

1. Overview

1.1 Functions

Attaching an optional GPS/DGPS receiver (GPS 100 or DGPS 200) makes it possible to turn the GPS

Navigator J-NAV500 into a GPS/DGPS navigational system. This navigational system uses GPS satel-

lites to calculate accurate positions anywhere in the world and under any weather conditions 24 hours

a day. This navigator displays navigational paths to entered waypoints using position data. There are

the following four navigation displays:

• POSITION Displays the latitude and longitude of the current position. It also dis-

plays the bearing and distance to a waypoint, course, speed, etc. and

the Loran C time difference.

• NAVIGATION Displays the bearing and distance to a waypoint, deviation and correct

steering direction to the route, and time to arrival to a destination.

Selections can be made to display the desired information.

• CDI Displays a graphic representation of course deviation. It also displays

correct steering direction, course and speed.

• PLOT Displays a graphic representation of the route line, the tracked line and

waypoints. Waypoints are indicated by symbols or alphabetic charac-

ters.

There is also a [STATUS] display showing status information such as satellite number, beacon fre-

quency and receiving level.

A total of 499 waypoints and 20 route plans can be entered in the navigator. A single press of the

key can turn any current location into a waypoint. Someone should fall overboard, press the

key for an instant graphic representation of that position and the route to return to this position.


11

1.2 Features

This navigator is equipped with the following features.

• Large backlit dot matrix liquid crystal display

The large display makes it easy to view the information provided by the many display modes. The

backlit keyboard keys facilitate night operation.

• Graphic representation

The CDI display mode allows you to get the direction to steer at a glance, supports safe navigation

and saves fuel.

The plot display mode displays the symbols registering the route and each waypoint.

• Menu driven easy operation

The display menus facilitate operation by showing what to do next. Menu selections and data

entry are performed with an easy-to-use dial.

• Customize

The great number of features provided makes it possible to customize functions and build your

own navigation system.

• One-touch removal and installation

The display can easily be removed or installed by pressing the button on the rear panel.

• Support for seven display languages is provided.

1.3 Equipment supplied

The table below lists items that are included with your J-NAV500. If an item is missing, contact your

JRC dealer for assistance.

The following optional accessories are also available.

Flush mount kit: MPTG30432

DGPS receiver: DGPS200

GPS receiver: GPS100

24 VDC power supply unit: NBG-121

AC power supply unit: NBG-122

Item Description Q'ty Remarks

Display unit NWZ-4551 1

Bracket MPBX35850 1 Included with the navigator

Power cable CFQ-8410 1 Length 1.8 m, with a fuse (2 A)

Fuse MF60NR-2A 1 Spare fuse (2A)

Tapping screws MPTG30149 1 4 pcs.

Instruction manual DC50-NWZ-4551 1 English


12

1.4 Structure

The outside view of the display unit is shown below.

Figure 1-1

1.5 Equipment connections

Equipment connections are shown below.

GPS/DGPS receiver (optional GPS 100 or DGPS 200)

12 VDC power/input Data I/O(Power cable supplied)

To vessel ground

MODE

MENU

MOB EVENT

GOTO

CONTDIM CLR

OFFPWROFF

PUSH

Figure 1-2

MODE

MENU

MOB EVENT

GOTO

CONTDIM

CLROFF

PWROFF

PUSH

138 11

721

46.5 104

197

46.5

124

74

28 96

UNIT : mm

WEIGHT : Less than 0.9kg


13

2. Names and Functions of Parts

2.1 Operation panel

The illustration shows the keys on the operation panel and their functions.

Figure 2-1

MODE

MENU

MOB EVENT

GOTO

CONTDIM

CLROFF

PWROFF

PUSH

1

23

4

567

9 8

No. Name Function

• Press this key in mode exept [ MOB ] to select main display mode.

• Press this key in the [ Select Mode ] display to return to previous

display mode.

Mode

• Turn to select menu. (Turn dial counterclockwise to scroll down-

ward and turn it clockwise to scroll upward.)

• Selects menu items.

• Sets numeric values when menu items are numeric entry. (The

numbers change faster, when the dial is turned faster.)

• Press the dial to select a menu or to enter a setting.

• When following a route sequence manually, use the dial to step

the next waypoint.

This function is available in the following display modes:

[POSITION]. [NAVIGATION]. [CD] displays

Dial

Down Up

ENT (Press dial)

1

2


14

No. Name Function

Displays the menus for each display mode.Menu

Use this key to select to destination (see Section 4.9, “Navigation

using direct routes (GOTO).” This key function is available in the

following display modes:

[ POSITION ] , [ NAVIGATION ] , [ CDI ] and [ PLOT ] displays

GOTO

Registers the current position (buoy or fishing point) as a waypoint.

This key function is available in the following major display modes:

[ POSITION ] , [ NAVIGATION ] , [ CDI ] , [ PLOT ] and [ MOB ]

displays.

Event

Turns on the power.

• Press this key and the key to turn off the power.

• Press this key while holding down the key to perform a

soft reset.

Soft reset: All registered data except waypoints and

route plan are set to the default Values (factory

settings).

Power

• Resets items before the dial was pressed.

• In the Select Mode display, press this key to return to the previous

display.

Clear

Adjusts contrast and brightness of the backlight. This key function

is available in all display modes.

Contrast

Man overboard (position where a person fell overboard). This key

function is available in all display modes. (To return to previous

display mode, press this key for 3 seconds.)

MOB

3

4

5

6

7

8

9


15

2.2 Rear panel

Figure 2-2

No. Name Function

Press this button to remove the display unit from the bracket.Release button

Connector for GPS or DGPS receiver (GPS 100 or DGPS 200)

Connects supplied power cable.

(Includes data I/O lines)

GPS/DGPS

DC PWR/DATA

Terminal for connecting to vessel ground.E terminal

GPS/DGPS

DC PWR/DATA

E

10

11

12

13

10

11

12

13


16

3. Installation

3.1 Display installation

Figure 3-1

Make sure that these space requirements are met.

Tabletop

3.1.1 Choosing the location

When choosing a location to mount this unit, please consider the following two criteria for the site.

• The best location to provide ease of operation and viewing of the unit.

• The best location to provide protection from environmental elements. Avoid locations exposed

to direct sunlight and salt spray. Also avoid improperly ventilated locations and places exposed

to high temperatures.

The unit can be screw-mounted on a chart tabletop. Figure 3-1 shows the mount of free space required

around the unit.

CAUTIONInstall this unit at least 1 meter away from a magnetic compass. Otherwise, the unit

may cause the compass to indicate unreliably.

UNIT : mm1010


17

3.1.2 Mounting the unit

When installing this unit on a tabletop, use the designated screws to secure the bracket

to a stable wooden surface. Otherwise, the unit could fall and it may cause human

injury or property damage.

Mount the unit according to the following steps.

(1) Determine the mounting location of the unit and mark the holes of the four screws. Figure 3-2

shows the distance between the holes.

(2) Press the release button to remove the unit from the bracket. (See fig. 3-3)

(3) Secure the bracket to the mounting location with the four supplied tapping screws.

(4) Mount the display unit to the bracket. Make sure that the display unit is firmly attached to the

bracket.

(5) Adjust the unit to the best viewing angle. (See fig. 3-4)

Figure 3-2 Bracket dimensions

84

74.2

CAUTION

Figure 3-3

UNIT : mm


18

As shown below, an optional flush mount kit can be used to wallmount the navigator. For information

on mounting, refer to the instruction manual supplied with the kit.

Figure 3-4


19

3.2 Cable connections

The connectors on the rear panel are shown in Figure 2-2.

When the equipment is used with a “floating” battery, do not touch the ground connec-

tor on this unit and vessel ground simultaneously. Otherwise, you may suffer from a

electrical shock.

WARNING

When the GPS/DGPS receiver has been installed, route the surplus cable from the

receiver at a distance of 30 cm or more from this unit to prevent interference from

occurring in other communication devices.

CAUTION

3.2.1 GPS/DGPS receiver connection

The unit provides with a 12 VDC power supply for a GPS/DGPS receiver (GPS 100 or DGPS 200).

The GPS/DGPS receiver operates when the unit is turned on, and it displays current position and other

GPS status informations received from satellite signals.

Connection procedure:

Connect the GPS/DGPS receiver cable to the GPS/DGPS connector on the rear panel of the unit.

3.2.2 Power cable connection


20

Figure 3-5 is a power cable wiring diagram. The power cable include the following wires: +12 VDC,

-12 VDC, DATA COM, DATA OUT+ and DATA IN+. Each wire is labeled.

Figure 3-5

Connect the red cable to the plus terminal and the black cable to the negative terminal

of the 12 VDC power supply. Note that reversing the cables could lead to equipment

damage.

Use only a fuse with the designated rating. Use of other fuses could lead to fire or

breakdown.

Model ; MF60NR-2A

Do not connect this unit and the GPS/DGPS receiver to ground when used with a

“floating” battery. Should they be connected to ground, large current will flow from this

unit or the GPS/DGPS receiver to ground and could cause fire or equipment break-

down.

When the data signal cables are not to be used, insulate the cable ends using

insulation tape to prevent cable short-circuit. Otherwise, the equipment may be

damaged.

CAUTION

The unit is intended for use on vessels with 12 VDC power systems and can operate as long as the DC

supply is maintained between 10.8 and 16 volts. The DC power system can be negative ground or can

be used without a ground connection in a ÔfloatingÓ power supply.

5

Make indicating pin 1 location

White DATA IN+

DATA OUT+

+12 VDC

–12VDC

DATA COM

Red

Black

Green

Yellow

Fuse 2A

1

2

3

4


21

However, the unit cannot be used on positive ground vessels.

Power lead connections

1. Connect the black -12 VDC power cable to the negative pole of the vessel battery.

2. Connect the red +12 VDC power cable to the positive pole of the vessel battery.

3. Firmly connect the power cables in the DC PWR/DATA connector on the rear panel of the unit.

• On a large ship, connect the power cable leads to the DC distribution board. Since a 2 A fuse is

used in the unit, connect it to a circuit breaker with 3 A or greater capacity.

• On a small ship, connect the power cables directly to the main battery insulation switch or breaker.

• Connect the unit to it’s own circuit breaker. Do not connect it to a circuit breaker also used for radar

and other equipment.

• To avoid electromagnetic interference, route the wiring of the unit as much as possible away from

other equipment.

• The power consumption of the unit is 6 watts when a GPS/DGPS receiver is connected; since line

loss becomes a problem at lengths of 3 meters or more, thicker cable has to be used. Use #12

AWG for cable length between 6 to 12 meters.

Data signal cable connections

The DATA OUT+, DATA IN+ and DATA COM signal cables can be used to connect to external

equipment using serial data connections. NMEA0183 sentences are output at all time.

Data signal cable connections

• Connect the DATA OUT+ (yellow), DATA IN+ (white) and DATA COM (green) cables to the

serial port of external equipment.

3.2.3 Ground connection

To connect to a beacon receiver with a whip antenna, a ground connection is required to improve

receiving performance. If the ship’s battery is a connected to negative ground, you can ground the

equipment using the hull of the vessel. If the ship’s battery is not connected to ground, use an insulating

DC-DC converter between the battery and the navigator before making a ground connection.

(Use an NBG-121 insulating converter for a 24 VDC battery.)

• Connect the E terminal on the back of the unit to the nearest vessel ground. Use #10 AWG or

thicker cable.


22

3.3 EMC INSTALLATION & SERVICE GUIDELlNES

IMPORTANT NOTE

All JRC equipment and accessories are designed to the best industry standards for use in the marine

environment. Their design and manufacture conforms to the appropriate Electromagnetic Compatibil-

ity (EMC) standards, but good installation is required to ensure that performance is not compromised.

Although every effort has been taken to ensure that they will perform under all conditions, it is impor-

tant to understand what factors could affect the operation of the product. Complete installation instruc-

tions are provided in Section 3 of this manual. Some preliminary suggestions are made below.

3.3.1 Installation

To avoid the risk of operating problems, all JRC equipment and cables connected to it should be:

• At least 1 m (3 feet) from any equipment transmitting or cables carrying radio signals e.g. VHF

transceivers, cables and antennas. In the case of SSB transceivers, the distance should be in-

creased 2m (7 ft).

• More than 2m (7 ft) from the path of a radar beam. A radar beam can normally be assumed to

spread 30 degrees above and below the radiating element.

• The equipment should be supplied from a battery other than that used to start the engine. Voltage

drops below 10.8 V in the power supply to our products can cause the equipment to reset. Al-

though this will not damage the equipment, it will cause loss of information and could change the

operating mode.

• Use JRC designated cables at all times. Cutting and rejoining these cables can compromise EMC

performance and should therefore be avoided unless specifically suggested in the installation

manual.

3.3.2 Check Before Going to Sea

• Always check the installation before going to sea to make sure that it is not affected by radio

transmission, engine starting, low battery voltage, or other problems.

• In some installations, it may not be possible to prevent the equipment from being affected by

external influences. In general this will not damage the equipment, but it can lead to it resetting, or

may momentarily result in faulty operation.

3.3.3 Servicing and Safety

• JRC equipment should be serviced only by authorized JRC service engineers. They will ensure

that service procedures and replacement parts used will not affect performance, There are no user

serviceable parts in any JRC product.

• The unit generates high voltages, so do not touch the cables or connectors when the power is on.

• Always report any EMC related problem to your nearest JRC dealer. We will use such information

to improve our quality standards.


23

4. Operation

4.1 Overview

When the setup operations described in Chapter 3 have been completed, turn on the power to start

operation. This chapter describes the basic flow of operations. The bold line boxes indicate user opera-

tions.

For information on messages output during operation, see Message Table in Appendix A.


24

4.2 Turning the unit on/off

• Press to turn on the unit.

• Press and simultaneously to turn off the unit.

Display changes when the unit is turned on

When the unit is turned on, the displays are shown in the order given below: When position fixing is

completed, the [POSITION] display is shown.

• Position fixing the first time the navigator is used or after a master reset takes about 20

minutes. (Subsequent position fixing takes about 1 minute.) To shorten this time, perform

the operation described in Section 4.19.2, Initializing GPS/DGPS receiver.

• For information on data error display, see the message list in Appendix A .

Master reset

This navigator is equipped with the following reset functions. For example, if the internal battery or the

ROM IC is replaced, a master reset would have to be performed.

When resetting the navigator, perform Initializing GPS/DGPS receiver as described in section 4.19.2

when correcting for local time.

1. Soft reset

This reset clears all data except registered waypoints and route plans.

• Key operated soft reset

Press the key while holding down the key.

• Menu selected soft reset

See Section 4.22, “To perform a master reset.”

2. Hard reset

This reset clears all data including registered waypoints and route plans.

• Menu selected hard reset

See Section 4.22, “To perform a master reset.”

[Self-test result][Version]GPS status information

After position fixing


25

4.3 Selecting display language

The display language is set to English at the factory before shipment and reverts to this setting after a

master reset. Use the following steps to set it to desired language. One of the following seven language

can be set.

LANGUAGE: English (default)/Deutsch/Francais/Espanol/Norsk/Italiano/‘

Display example

(1) After position fixing, the [ POSITION ] display mode appears.

Press to display the Select Mode.

(2) Turn to select [ NAVIGATION ] and press to confirm it. This action displays the

[ NAVIGATION ] display mode.

(3) Press to display the [ NAVIGATION MENU ] .

(4) Turn to select [ LANGUAGE ] and press . [ ENGLISH ] is now highlighted.

(5) Turn to select desired language and press . Check that the selected language is

displayed.

(6) Press to return to [ NAVIGATION ] display mode.

[Select Mode] [Navigation] [Navigation Menu]


26

4.4 Switching between Main Display ModesThis section describes how to switch between the Main display modes, then what display modes can beselected from which main display mode. There are seven Main display modes. When the unit isturned on and GPS position fixing is performed, the [ POSITION ] display mode.

• POSITION : Displays current position and navigation information• NAVIGATION : Displays bearing, distance, course deviation and other navigation information• CDI : Shows a graphic representation of course deviation• PLOT : Shows a graphic representation of track line and route line to waypoints• WAYPOINT : Mode for displaying and setting waypoints• ROUTE : Displays route plan numbers• STATUS S/F : Displays a variety of GPS satelite information including beacon information

1. Switching between Main display modesThe example given below shows how to switch from the [ POSITION ] display mode to the[ NAVIGATION ] display mode.

(The numbers in the text correspond to numbers in the illustration.)

Press to display the [ Select Mode ] display mode.

Turn to select the [ NAVIGATION ] display mode. [ NAVIGATION ] is highlighted.

Press (Dial). (In descriptions given below, pressing will be used to mean pressing

.) The [ NAVIGATION ] display mode appears.

All seven main display modes can be displayed in the same manner.

2. Screens that can be selected from the main display modesAs shown in the figure, the keys that can be used in each display mode are shown. As you get used tooperating the navigator, a glance at the figure will be all you need to know how to operate the navigator.

The following is a brief description of keys used in main display mode operations.

• : Displays the [ Select Mode ] . This key is available in all modes except [ MOB ] .

• : Emergency key function used to mark a spot someone fell overboard. (This

key is available in all modes.)

• : Selects the menus of each Main display mode.

• / : Sets the [ DIRECT ROUTE ] and [ EVENT ] . (These keys are available in the

[ POSITION ] , [ NAVIGATION ] , [ CDI ] and [ PLOT ] display modes.)

• : Adjust contrast and backlighting brightness. (This key is available in all displays)

• in the [ PLOT ] display mode: Plot scale can be selected.

3. Selectable display mode from the Select Mode displayAs shown in the figure, the [ Select Mode ] display shows the display mode and detailed menus after.The following operations can be performed in these two modes.

• : Selects (highlights) Main display mode.

• or : Displays previous Main display mode.

1

3

2


27

Display Changes

0.5 sec

0.5 sec

[Select Mode display mode]

To previous display mode

[[STATUS] display mode]

[[ROUTE] display mode]

[[WAYPOUNT] display mode][Plot scale] display mode

[[PLOT] display mode]

[[CDI] display mode]

[[NAVIGATION] display mode]

[[POSITION] display mode]

[Main display modes]

2

31


28

4.5 Main Display Modes

This section describes how to interpret the seven main display modes.

• Display modes where waypoints and route plans have already been set are used in the examples.

• For information on items shared by each display mode, see Section 4.5.1, “Position display mode.”

4.5.1 POSITION display mode

This display mode shows current position and navigation informations. The following items are dis-

played in the [Position] display mode.

The data displayed in this display mode can be changed in the menus.

Display mode name

Indicates that the [ POSITION ] display mode is shown.

Time (hour: min)

Displays the current time derived from GPS data.

The character L (default value) indicates local time and U indicates universal time.

(For more information, see Section 4.15, “Setting CDI range and Display Time Format.”)

Route plan number

Displays the currently selected route plan number (R01 to R20). The symbol A indicates that route

plan are automatically stepped. No symbol is displayed for manual step. (See Section 4.10, “Navigation

according to route plans.”)

The message “WPT NO DEST” is showed when no waypoint has been selected in a route plan or direct

route selection.

[Latitude/Longitude] display mode [Loran C Time Difference] display mode

Display mode name

Route plan number

Current position

Navigationinformation

Position fix status Navigation alarm

Waypoint number Time

Waypoint name

1

2

3


29

Waypoint number

Displays the number of currently selected waypoint for destination.

Example: WPT 001 WPT: waypoint

001: waypoint number

When waypoints are registered through events, a “D” or “G” is appended to the waypoint number to

indicate the position fixing of GPS or DGPS, respectively.

Waypoint name

Displays the name registered for a waypoint.

Current position

The position is displayed in the following two ways.

1. Latitude and longitude (default)

2. Loran C time differences

The time difference display is designed for users of the Loran C navigation system.

(See Section 4.13, Position Display Mode/Position Correction/Geodetic System Correction/Magnetic

Compass Correction.)

Navigation information

Displays one of the following data

1. BRG/DTG/COG/SOG (default)

2. BRG/DTG/XTE/TTG

3. CMG/VTD/COG/SOG

• BRG : Bearing to destination (unit: )

• DTG : Distance to go to destination

Unit : nautical miles (nm) (default), sm, km

• COG : course over ground (unit: )

• SOG : average speed of ship (speed over ground )

Unit : kt (knots) (default) (when the distance unit is nm), mh (when the distance

unit is sm), kh (km/hour) (when the distance unit is km)

• XTE : Cross track error. Deviation from course and direction to steer (unit: 0.01 nauti-

cal miles)

Steering required to return to the planned course is indicated by L (left) and R

(right).

• TTG : Time to go until arrival at destination (unit: hour, minute)

• CMG : Bearing (unit: ¡) to the current position as viewed from the origin

• VTD : Velocity toward destination

Unit : kt (knots) (default) (when the distance unit is nm), mh (when the distance

unit is sm), kh (km/hour) (when the distance unit is km)

(See Section 4.14, “Setting Navigation Display Modes and Units.”)

4

5

6

7


30

Position fix status

This position is displayed GPS position fix status.

When a problem has occurred in position fixing, HDOP, NO FIX or DGPS alarm is displayed.

For information on alarms, see Appendix A, “Message list.”

• When a GPS/DGPS receiver cannot calculate the position after one position fix, the message

[ No Fix ] is displayed and the alarm sounds. The alarm sounds can be canceled by pressing

.

• The alarm sounds once when the DGPS receiver switches from DGPS position fixing to

GPS position fixing. (When DGPS alarm set.)

Navigation alarm

Displays alarms by selecting.

• ARV (arrival alarm)

The alarm sounds and the characters ARV flash when the ship comes inside a set distance from a

waypoint.

• ANC (anchor alarm)

When the ship drifts beyond the set distance from a waypoint, the alarm sounds and the characters

ANC flash.

• XTE (off-course alarm)

When the ship strays off course by more than the set distance, the alarm sounds and the characters

XTE flash.

(See Section 4.8, “Setting Alarms (Arrival/Anchor/Off-course/DGPS).”)

Canceling alarms

• Press to cancel the alarm sounds.

• To disable the alarm display, set 0.00 as the alarm range. (See Section 4.8, “Setting Alarms (Ar-

rival/Anchor/Off-course/DGPS).”)

A “t” after the figure for BRG, COG and CMG indicates true bearing, while “m” indicates that

magnetic compass correction has been made.)

8

9


31

Set distance

Waypoint

Alarm range

ARV (arrival alarm)

The alarm goes off when the ship comes inside a

set distance of a waypoint.

ANC (anchor alarm)

The alarm goes off when the ship goes beyond a

set distance.

XTE (Off-course alarm)

The alarm goes off when the ship strays more than a

set distance beyond its course.

Alarm range

WaypointPosition

Set distance

Waypoint

Set distance

Planned course

Origin

Alarm range

The operation of each alarm is described in the figures shown below.


32

4.5.2 NAVIGATION display mode

This display mode shows the following navigation information.

The type of data displayed in this display mode can be selected in the menus.

[NAVIGATION ] display mode is the type of information indicated in , “Navigation information”

described in Section 4.5.1, “POSITION display mode.” For details, see Section 4.5.1, “POSITION

display mode.”

1. BRG/DTG/COG/SOG (default)

2. BRG/DTG/XTE/TTG

3. CMG/VTD/COG/SOG

The above display mode appears when 1. is selected.

4.5.3 CDI display mode

This display mode offers a graphic representation of course deviation. It displays the data shown below.

The data displayed in this display mode can be changed in the menus.

Course deviation

Shows the deviation from the set course and the direction to steer. (unit: 0.01 nm). The ( ) symbol

indicates that the ship should be turned left and the ( ) symbol indicates that it should turn right to

return to the set course. When the display indicates a deviation of 0.00, the ship will reach its destina-

tion by the shortest route.

Navigation information

Course deviation Waypoint symbol

Ship symbol

Track line

@SOGCOG

Range of CDI

7

1


33

COG

Course over ground (unit: )

“t” indicates true bearing and “m” indicates magnetic compass corrected value.

SOG

Displays the average speed (speed over ground) in kt (knots), mh, kh

CDI Range

Displays 0.1 (default), 0.3, 0.5 nm depending on setting.

(See Section 4.15, “Setting CDI range and Display Time Format.”)

4.5.4 PLOT display mode and setting the plot scale

1. PLOT display mode

This display mode offers a graphic representation of track line and the direct route from the vessel to a

waypoint.

The data displayed in the different display modes can be changed in the menus.

Plot scale

Waypoint symbol

Current position mark

Waypoint and direct route of ship

Ship track line

Waypoint symbol

Displays the first character in the registered waypoint name. The waypoint symbol can be turned on

(default value) or off.

(See Section 4.16, “Setting Plotting Information.”)

Current position mark

A “+” mark shows the current position of the ship.

Plot scale

The plot scale can be set in 10 steps between 0.125 nm to 100 nm. Scale refers to the size of the

horizontal area that the display shows.

2. Setting plot scale

(1) Press in the [ PLOT ] display mode.

This action displays the [ PLOT SCALE ] selecting mode.

(2) Turn to select plot scale and press .

This action returns to the [ PLOT ] display.

Setting scale: 0.125 (default), 0.25, 0.5, 1, 2, 5, 10, 20, 50, 100 nm

Plot scale

2

3

4

1

2

3


34

4.5.5 WAYPOINT display mode

This display mode shows a list of registered waypoints.

Turn to scroll waypoint numbers and display each waypoint.

The waypoints registered in this display can be edited. (See Section, 4.17.1, Editing waypoints.)

4.5.6 ROUTE display mode

This display mode shows a list of registered route plan numbers.

The number of the route that is used is highlighted.

For information on how to execute route plans, see Section 4.10, Navigation according to route

plans.

Waypoint name

Waypoint number

Bearing to current position

Date (date entered waypoint)

Waypoint position

Distance to current position

D: registered DGPS positionG: registered GPS positionNo indication: registration other

than EVENT

Number of route plan being used

Number of registered route plan


35

4.5.7 STATUS display mode

The [STATUS] display mode shows all relevant satellite data.

Satellite number

Displays numbers for the receiving satellites (8 of 01 to 32)

Azimuth angle

Displays the azimuth angle: N, NE, E, SE, S, SW, W, NW

Elevation angle

Displays the elevation angle to each satellite.

Receiving level

Displays the receiving level of each satellite. The greater the number, the higher is the level.

Beacon status

Displays the frequency, Baud rate and RSSI of DGPS beacon receiving signal.

RSSI: Receiving Signal Strength Indication

Date

Displays date derived from position fix. (month/day/year)

HDOP value

Indicates HDOP value. Position becomes more accurate as the HDOP value decreases. When the

HDOP value exceeds 4, the HDOP indicator flashes to notify that the positioning accuracy is poor.

Antenna height

In 3D mode, the height of the GPS/DGPS receiver obtained from position fixing is displayed.

Initial value are displayed when initialization is performed in 2D mode. (For details, see Section 4.19.2,

“Initializing GPS/DGPS receiver”). Initial values or the height obtained in previous 3D measurements

are displayed in an automatic mode.

Satellite number

Azimuth angle

Elevation angle

Receiving level

Beacon status

Date

HDOP value

Antenna height

1

2

3

4

5

6

7

8


36

Tip HDOP level

A standard for assessing accuracy of position fixing. HDOP is based on the shape formed by the

positions of satellites and the receiver; a good shape yields a low HDOP level and an accurate

position fix value. A poor shape produces a high HDOP level and an inaccurate position value.

Satellites

A poor geometrical shape produces a high

HDOP level

A good geometrical shape produces a low

HDOP level


37

4.6 Basic menu selection operations

The use of the has already been described in sections 4.3, “Selecting display language” and

4.4, “Switching between Main Display Modes.” This section will describe menu selections in detail.

The can be turned and pressed to select and confirm selected menus; familiarize yourself with

it and you will be able to speedily select menus and confirm selections.

Read through this section carefully since what follows assumes a knowledge of what is described

here.

Keys used to select and set menus

• Turn : selects menu or menu items.

• Press (Press is used to mean press ): Menus and menu items that have been

selected by turning. are entered.

• Press :

• When pressed before a menu item has been set or entered, it cancels that selection and returns

you to the previous menu.

• When pressed after a menu item has been set or entered, it returns you to the previous menu.

• The next menu to be selected is highlighted when a menu has been selected and confirmed.

Thus select and confirm items as they are highlighted to complete all the settings in a menu.

• Brief key instructions are given along the bottom of the screen to help you with entries.

Example: (DIAL/ENT/CLR EXIT) in the figure below means: Turn to select /press

to confirm/press to return to previous menu).

Operation examples

Detailed descriptions for setting in the position display type and position correction in the [POSITION

MENU].

Press the key in the [ POSITION ] display mode to display this menu.

[Position] display mode

Menu Selection item

L/L TD

N 00.000' W 00.000'

S E

Select All(Items cannot be displayed due to lack of space appear when selected.)


38

1. Setting position display type

(1) Turn in the [POSITION MEN] display mode to select the [L/L OR TD] menu.

[L/L OR TD] is highlighted and currently selected item [L/L] is displayed.

(2) Press to confirm [L/L OR TD] selection.

All selected items are displayed and currently selected item [L/L] is highlighted.

(3) To change to [TD], turn to select [TD] and press to confirm.

(When [L/L] is the selection you wish to make, press to cancel the last selection.)

This action returns you to the [L/L OR TD] menu and [L/L OR TD] is highlighted.

2. Position Correction (latitude, longitude) menu setting

(1) Turn in the [POSITION MENU] display and press to select the [POS CORR]

menu. [POS CORR] is highlighted and the currently set value is displayed.

(2) Press to confirm [POS CORR].

The next item, [N] is highlighted.

(3) If [N] is the selection you wish to make, press . If you wish to select [S], turn to

select [S] and press to confirm the selection.

[00] is now highlighted.

(4) Turn to select the desired value and press to confirm the selection.

[000] is highlighted.

(5) Turn to select the desired value and press to confirm the selection. This action

corrects the latitude setting.

The next item to be set, [W] is highlighted.

(6) Repeat steps (3) to (5) to set longitude.

The [POS CORR] menu is displayed and [POS CORR] is highlighted.

(7) Press to return to the previous display.

• Use the key to amend number entries during settings.

Example: Amending a number entry made in step (3) above

When [00] has been confirmed, [000] is highlighted. Before confirming [000], press .

This action causes [00] to be highlighted and allows you to amend the [00] setting.

• Turning rapidly, changes the figures at high speed.


39

4.7 Adjusting Contrast and Backlighting

This function adjusts contrast and backlighting in all displays.

(1) Press .

This action displays the display for changing the contrast and back-

lighting.

(2) Turn to select the desired contrast.

Range of contrast selection: 00 to 15(default value: 07)

(3) Press . Each press of the key toggles the setting between High and Low.

Backlight setting: HI/LOW (default)

(4) Press or wait for 5 seconds to return to the previous display mode.

4.8 Setting Alarms

(Arrival/Anchor/Off-course/DGPS)

The navigator is provided with four types of alarms that can be set to inform you of important changes

during navigation.

Note that set alarms will go off whether you have selected a route plan or when you use the

function (see Section 4.9, “Navigation using direct routes (GOTO).” ).

Before reading the following sections, read Section 4.6, “Basic menu selection operations.”

1. Selecting displays

(1) Press in the [ROUTE] display mode.

(2) Turn to select [Alarm] and press . This action displays the •uAlarm•v setting

mode.

(3) To return to the [ROUTE] display mode, press twice.

Display example

[Route] display mode


40

2. Setting

1) Arrival alarm

The arrival alarm can be set to alert you when

you are within a specified distance from your

waypoint. The arrival alarm can be set within a

range of 0.00 to 9.99 nm .

• A setting of 0.00 turns off the alarm.

• This alarm is also valid in direct route naviga-

tion.

• When following a route plan, the arrival alarm

selected in setting up the route plan takes prior-

ity. (See Section, 4.10 “Navigation according

to route plans.”)

2) Anchor alarm

The anchor alarm is intended to be used to moni-

tor your ship’s position while at anchor. The alarm

goes off when the ship drifts beyond the entered

distance. This distance beyond which the alarm

will be triggered can be set in a range of 0.00 to9.99 nm .


Since the settings of the arrival alarm and

anchor alarm conflict, you can only set an

arrival alarm or an anchor alarm, but not both

together.

When both alarms are set, the last made

setting is valid.

3) Off-course alarm

This alarm sounds when you stray more than a

set distance off a set course. A distance in a range

of 0.00 to 9.99 nm can be set.


4) DGPS alarm

This alarm sounds once to notify that GPS posi-

tion fix values will be used instead of DGPS po-

sition fix values.

DGPS alarm on (default)/off

Alarm range

WaypointPosition

Set distance

Waypoint

Set distance

Planned course

Origin

Alarm range

Set distance

Waypoint

Alarm range


41

4.9 Navigation using direct route [GOTO]

A registered waypoint number can be selected as a direct destination by pressing and entering

a waypoint number. The function is available in the following four main display modes:

• [POSITION], [NAVIGATION ], [CDI] and [PLOT] display modes

The procedure to make direct route selection is the same in four display modes. In the example

below, shows how to do this from the [CDI] display mode.

(1) Press .

The [DIRECT ROUTE] display mode appears and [GOTO

WPT_ _ _] on the second line is highlighted.

(2) Select the number of the desired waypoint in registerd waypoints.

Example: To set 050

Turn until 050 is displayed and press to confirm the

selection.

You can now use the [CDI] display mode to steer you towards the selected waypoint.

Canceling a direct route

To cancel a direct route (or a route plan in operation), press and enter waypoint number [000].

To enter a new direct route, perform steps (1) to (2) above.

When a direct route is used in the plot display mode, press the to display the waypoint

numbers beside the waypoint symbols.


42

(1) Press in the [ROUTE] display mode to display the [Route Menu].

(2) Turn to select [FOLLOW ROUTE] and press to confirm the selection. This action

displays the [FOLLOW ROUTE] display.

(3) Turn to select desired route plan number (04 for the example) and press .

(4) This action selects [SEQUENCE MODE].

(5) Turn to select one of the following and press .

• Auto : automatic step of waypoints

• Manual : manual step of waypoints

• Off : no route plan is set

(6) [DIRECTION] is now selected.

(7) Turn to select one of the following and press .

• Forward : Displays waypoints of the route plan in the order they were set

• Reverse : Displays waypoints of the route plan in the reverse order

(8) Turn to select values for [SET ARRIVAL DISTANCE] and press .

Setting range: 0.00 to 9.99 nm

The [Position] display mode is now displayed automatically.

4.10 Navigation according to route plans

Select the number of the route plan you wish to follow. When the number of the route plan has been

selected, perform the settings in the displays that appear.

For information on route plans, see Section 4.18, "Setting Route Plans."

Display example[Route Plan] display mode


43

4.11 Entering current position as a waypoint

[EVENT]

The current position (buoy or fishing ground) can be turned into a waypoint

simply by pressing . The function is available in the follow-

ing five main display modes.

• [POSITION], [NAVIGATION], CDI, [PLOT] and [MOB] display modes.

The procedure to enter the current position as a waypoint is the same in five display modes. The

example below shows how to do this from the [ POSITION ] display mode.

(1) Press at the position you wish to add as a waypoint. The [ EVENT ] display appears in

place of the [ POSITION ] display.

After [ EVENT ] , the lowest unregistered number is displayed on the second line.

(2) The current position is now registered to the desired number.

• When you wish to register the waypoint to the number that is first displayed, press . Or

just wait 5 seconds until the [ EVENT ] display disappears.

• Use the following procedure to register the waypoint to a different number.

Press and turn to select a number. Then press .

• Number of registration: 001 to 499

• When a number where a registration has already been made is selected for registration, the

message, “NOW USING”, “IN ROUTE”, “DEST PT” are indicated and no registration is made.

• Events cannot be registered when the GPS/DGPS receiver is not position fixing.

When events are registered during GPS/DGPS position fixing, the following symbols are appended

to the waypoint list:

DGPS position fixing: D

GPS position fixing: G

The alarm setting made in Section, “4.8 Setting Alarms (Arrival/Anchor/Off-course/DGPS)” are

replaced by the arrival alarm distance made here.

The route plan numbers entered here are highlighted in the [Route] display mode. An automatic stepcannot be performed by selecting [Auto] in step (5) when [0.00] is set in [Set Arrival Distance]. To

make an step, press , like in manual step, to step the waypoint. When a value between 0.01

to 9.99 is entered, the alarm sounds when the vessel enters within the set arrival alarm zone fromthe waypoint.

Auto step: Function that automatically steps from one waypoint to the next when the arrivalperpedicular point has been deleted.

Manual step: The next waypoint is stepped by pressing . When is pressed as the

vessel enters the set arrival alarm zone to step to the next waypoint, the alarm is canceled. If is not pressed to perform an step when the vessel enters the set arrival alarm zone, the alarm will

ring until turned off by pressing . (Manual stepping is valid in [ POSITION ], [ NAVIGATION], [ CDI ] display modes.)


44

4.12 Man-Overboard Mode

The MOB function (Man-overboard) is useful if something or someone falls overboard. Press

and the navigator shows a graphic display of the position allowing you to steer back to the position

where the event occurred.

The function is available in all display modes.

(1) Press . This action enters the display mode. The ship

and the MOB position are connected by a dotted line. (The alarm can

be canceled by pressing .)

(2) The display shows the bearing, distance and elapsed time (minutes and

seconds) from the MOB position.

You can now steer back to the MOB position using the display information.

• The plot scale is automatically set to 0.5 nm. An arrival alarm sounds when the ship is inside 0.1

nm of the MOB position. (The alarm can be canceled by pressing .)

(3) The MOB function can be canceled and the previous display mode can be redisplayed by press-

ing for 3 seconds.

Pressing does not store the MOB position in memory. To store the MOB position in memory,

press and register the MOB position to desired number. (For details, see Section 4.11,

“Entering current position as a waypoint [EVENT].”

4.13 Position Display Mode/Position Correction/Geodetic System

Correction/Magnetic Compass Correction

Make it a rule to check the geodetic system marine chart and this unit setting before

going to sea. If both geodetic systems are wrong, the displayed latitude and longitude

indications will differ from those of the actual position of the ship, which could lead to a

marine accident.

The automatically corrected compass value is an approximate value. For this reason,

manually enter the correct value when you wish to steer the ship on a correct course

according to corrected magnetic compass values.

See Section 4.6, "Basic menu selection operations" for information on setting procedures.

CAUTION


45

1. Display operations

• Press in the [POSITION] display mode.

• To return to the [POSITION] display mode, press .

Display example

2. Setting

(1) Display format

The [POSITION] display mode can be set to one of the following display formats.

L/L OR TD L/L : latitude, longitude display (default)

TD : Time Difference display

(2) Position correction

Use this function to adjust the positioning GPS/DGPS sensor to marine chart.

POS CORR N 00.000’ for latitude correction (in L/L display format)

SPOS CORR W 00.000’ for longitude correction (in L/L display format)

ETD correction TD1 + 0.0 for TD1 correction (in TD display format)

TD2 + 0.0 for TD2 correction (in TD display format)

(3) Geodetic system correction

The latitude and longitude of the positioning data can be converted to latitude and longitude data

of another geodetic system. There are a total of 46 geodetic systems. The names of the first nine

systems are displayed by name and the rest are displayed by number. The names of the other

geodetic systems are listed in Appendix B, “Geodetic System Table.”

GEODETIC See Appendix B, “Geodetic System Table.”

(4) Magnetic compass correction

Magnetic compass correction

AUTO (Automatic magnetic compass correction)

MANU E 00 (Manual magnetic compass correction)

W

In a manual setting, it is possible to read the magnetic compass variation from the compass chart of

a marine chart. Example: When the magnetic compass shows a reading of 60 and the navigator

indicates 40 , the (W) 20 difference can be used to correct the navigator setting.

[Latitude, Longitude display] [Time Difference Display]


46

4.14 Setting Navigation Display Modes and Units


• Press in the [NAVIGATION] display mode.

• To return to the [NAVIGATION] display mode, press .

2. Setting

(1) The navigation information can be displayed in one of the following

type.

DSP TYPE BRG/DTG/COG/SOG (default format)

BRG/DTG/XTE/TTG

CMG/VTD/COG/SOG

CMG and VTD are described in the figure below.

CMG : Bearing of the current position as viewed from origin of route

VTD : Velocity toward destination

(2) Unit

The following navigation information units can be set.

UNIT : NM/KT SM/MH KM/KH

(3) Display language

One of the following seven languages can be set.

LANGUAGE: English (default)/ Deutsch/Francais/Espanol/Norsk/Italiano/‘

NorthNorth

Origin

Planned route

VTD

Waypoint

Current position

b

V (velocity)

a

VTD = V cos aCMG = b

The correction value may differ with the sea area. If so, correct as required.


47

4.15 Setting CDI range and Display Time Format


• Press in the [CDI] display mode.

• To return to the [CDI] display mode, press .

2. Setting

(1) CDI range

The CDI range can be set as follows:

CDI RANGE: 0.1 (default), 0.3, 0.5 nm

(2) Display time format

Time can be displayed according to the following formats:

TIME DSP: Local (default) UTC (universal time)

4.16 Setting Plotting Information


• Press in the [PLOT] display mode.

• To return to the [PLOT] display mode, press .

2. Setting

(1) Track storage interval

The navigator can be record the track line by time or distance. A total of 499 points can be

recorded and the memory is updated as new data is received.

TRACK INTERVAL .5/1/3/5/10 minutes (approx. 250 min to 83 hours)

.2/.5 nm (approx. 100/250 nautical miles)/off (no data is stored) (default)

Setting a shorter storage interval, increases the accuracy of the track line, but uses up the total of

499 points in a shorter time. Longer intervals increase storage time but reduces accuracy of the

track line.

(2) Erasing track line

TRACK ERASE

This function cancels track line displayed in the [PLOT] display mode.

(3) Displaying track line

The track line display can be turned on and off.

TRACK LINE on (default)/off


48

4.17 Entering Waypoints

Waypoints can be entered in one of the following four ways:

• Using to store a waypoint

Press when you pass a fishing point or buoy and enter the desired waypoint number. (See

Section 4.11, “Entering current position as a waypoint [EVENT].”)

• Entry of latitude/longitude (When the [L/L] is selected.)

Direct entry of latitude/longitude coordinates from marine charts or other navigation informa-

tion.

• Entry of Loran C time difference(When the [T/D] is selected.)

Direct entry of Loran C time difference TD1 and TD2. (For those who are used to time difference

data)

• Entry of bearing and distance

Direct entry of bearing and distance from current position of the ship can be calculated.

Up to 499 waypoints can be entered which are numbered from 001 to 499.

To store new numbers and to recall old ones, a number must be entered.

Thus it is a good idea to record the waypoint number and waypoint name in the waypoint list in Appendix

E. (Or in a copy of this list.)

The following function can be used to look for a registered waypoint.

• Sorting the waypoint list in number order (default) or in alphabetic order.

(4) Waypoint symbol

It is possible to display the first letter of the waypoint name as a waypoint mark on the display.

This display function can be turned on and off.

MARKS on (default)/off


49

For information on entry procedures, see Section 4.6, “Basic menu selection operations.”

4.17.1 Editing Waypoint Lists

Registered waypoints can be displayed in the [WAYPOINT] display mode and edited them.

(1) Scroll the list in the [WAYPOINT] display mode and select the number to be edited and press

. This action displays the [WAYPOINT LIST EDIT] display.

(2) Edit the waypoint and enter it again. This returns you to the [WAYPOINT] display mode.

WAYPOINT display mode and waypoint menu

• The [WAYPOINT] display mode is used for displaying and editing waypoints. (See Section

4.17.1.)

• The following settings can be made in the [WAYPOINT MENU] displayed by pressing

in the [WAYPOINT] display mode.

• Waypoint setting (latitude, longitude/TD/bearing, distance) (See Section 4.17.2.)

• Erasing, copying and measuring waypoints (See Section 4.17.3.)

• Sorting waypoint lists (See Section 4.17.4)

Display example

[WAYPOINT] display mode [Latitude, longitude display format] [TD display format]

[WAYPOINT Menu] display

or

[WAYPOINT] display mode [WAYPOINT LIST EDIT] display


50

(3) Select waypoint number and press . If the displayed number is the right one, just press

(4) Enter the name of the waypoint in up to 8 characters.

The alphabet (26 characters), numbers (0 to 9), symbols (6) and spaces can be used for name

entries.

Symbol: ( )

Example: Fish 3

• Turn to select symbol [ ] and press .

•Turn to select space and press .

•Enter up to 8 characters using this procedure.

Since the first character of a waypoint name is displayed as a symbol of the waypoint in [PLOT]

display mode. It is a good idea to select a symbol or alphabetic character for the first letter.

(5) Set latitude and longitude in stated order.

N XX XX. XXX' W XX XX. XXX'

S E

When the entry has been made, the message “CALCULATING” is displayed indicating that the

bearing and distance from current position is being calculated. The calculation result is displayed

at the bottom of the screen.

4.17.2 Storing waypoints

1. Storing by LAT/LON (When the [L/L] is selected.)

Use the following procedure to enter waypoint by latitude and longitude.

(1) Press in the [WAYPOINT] display mode. This displays the [WAYPOINT MENU] .

(2) Press to select [ENTER NEW WPT BY L/L] and press . The lowest number that

can be entered is displayed. (For the example 001 has been registered.)

Display example

[First Display]

[WAYPOINTMENU]

[WAYPOINTMENU]

[Display showing made entries] [Bearing, distance calculation results]


51

2. Storing by TDs (TD1, TD2) (When the [TD] is selected.)

Use the following procedure to enter the position of a waypoint using time differences.


(2) Turn to select [ENTER NEW WPT BY TD] and press .

Display example

(3) As in 1, select waypoint number and name, and press .

(4) Enter TD1 and TD2. (When the [TD] is selected.)

[GRI] displayed in the [TD conversion input] is [ESTIMATED TD] made in [STATUS/SF MENU] (See

Section 4.19.3, “TD initializing”)

3. Storing by bearing and distance

Use the following procedure to enter bearing and distance to be used in calculating waypoint position.

(1) Press in the [WAYPOINT] display mode. This displays the [WAYPOINT POINT] .

(2) Turn to select [ENTER NEW WPT BY B/R] and press .

Display example

(3) As in 1, enter waypoint number and name, and press .

(4) The bearing and distance from current position is entered.

When the entry is complete, the message “CALCULATING” is displayed.

[First Display]

[WAYPOINT MENU]

[WAYPOINT MENU]

[Display showing made entries]

[First Display]

[Waypoint Menu]

[Waypoint Menu]

[Display showing made entries]


52

4.17.3 Erasing, copying and measuring waypoints

The following three functions are described below.

• Erasing waypoints: Erasing waypoints no longer required.

• Copying waypoints: Copies registered waypoints. For information on how to edit copied waypoints,

see Section 4.17.1, “Editing Waypoints.”

• Measuring between waypoints: Bearing and distance between any two registered waypoints can

be measured.

Display example

1. Erasing waypoints

(1) Press in the [WAYPOINT] display mode.

(2) Turn to select [ERASE/COPY/MEASURE] and press .

(3) Turn to select [ERASE WAYPOINT] and press .

(4) Turn to select the number of the waypoint to erase and press .

The message [ARE YOU SURE? ENT] appears.

¥ Press to erase.

¥ Press to cancel erasure.

[ERASE/COPY/MEASURE] display [ERASE] display

[WAYPOINTNEMU]

[MEASURE] display [COPY] display


53

2. Copying waypoints



(3) Turn to select [COPY WAYPOINT] and press .

(4) Enter the number of the waypoint to be copied in the [FROM] field.

(5) Enter the number of the destination of the waypoint in the [TO] field. The waypoint has been

copied.

If the number of an already registered waypoint is selected as the destination, it will be overwritten by

the copied waypoint.

2. Measuring between waypoints



(3) Turn to select [MEASURE WAYPOINT] and press .

(4) Enter the number of the waypoint to be used as the origin in the [FROM] field.

(5) Enter the number of the waypoint to be used as the end point in the [TO] field.

The bearing and the distance between the waypoints is calculated and the result is displayed at the

bottom of the screen.


54

Harbor AA(waypoint number 010)

Fishing point (waypoint number 011)

Fishing point (waypoint number 012)

Harbor BB(waypoint number 013)

4.17.4 Sorting waypoint list

The waypoint list can be sorted either in number order or in the alphabetic order of the waypoint names.

In alphabetic order, characters are sorted in the following order: symbols, alphabetic characters, numbers

and spaces.


(2) Turn to select [WPT SORT] and press .

(3) Turn to select 123 or ABC and press .

123 (default): sorts the waypoints in number order

ABC: sorts the waypoints in alphabetic order.

Display example

This route plan thus consists of harbor AA and the destinations which are the two fishing points (waypoint

numbers 011 and 012) and harbor BB (waypoint 013). In following a set route plan, the navigator

switches from one waypoint to another when it comes within a certain distance from the first waypoint

(automatic stepping of waypoints). In automatic stepping, when the ship comes in the range set for the

waypoint arrival alarm, the waypoints are stepping.

• For information on entry operations given below, see Section 4.6, “Basic menu selection

operations.”

• For information on how to follow route plans, see Section 4.10, “Navigation according to route

plans.”

4.18 Setting Route Plans

A route consisting of several connected waypoints is called a route plan. For example, say that you go

from a harbor (waypoint number 010), to a fishing point (waypoint number 011), to another fishing

point (waypoint number 012) and then return to a different harbor (waypoint number 013).

[Waypoint display for ABC sort]

[WAYPOINT MENU]


55

4.18.1 Making route plan

The following displays are used for making route plans.

Display examples

(1) Press in the [ROUTE] display mode. This displays the [ROUTE MENU] .

(2) Turn to select [MAKE ROUTE] and press .

This displays the [ROUTE MENU] .

This displays the [MAKE ROUTE] display and the numbers that can be used for a new route

plan. (The display above shows that 02 and 04 are already taken.)

(3) Turn to select desired route plan number (01 in the example) and press .

The display title changes to [MAKE ROUTE #01] .

(4) Enter the origin of waypoint number 001 in the [FROM] field for the first route (LEG 001) of

route plan #01. (The name of route number 001 is shown in the display.)

(5) Enter the number of the next waypoint in the [TO] field.

The entries made for route (LEG 001) and the calculated bearing and distance between the two

waypoints are displayed.

• Press to end a route plan.

• To enter the next route (LEG 002 to), repeat steps (4) and (5).

You can use steps (4) and (5) to enter up to 20 routes consisting of up to 199 waypoints.

[Route Plan] display mode

Rep

eat


56

[Made Route] [Erase waypoint 003] [Insert waypoint 005]

Leg 001Leg 002

Leg 001 Leg 001Leg 002

Leg 003

Leg 003

Leg 004Leg 002

001

002

003

012

001

002

003

012

001

002

005

003

012

4.18.2 Editing route plan

Routes can be inserted to or deleted from registered route plans as you wish.

Use and in the [Edit Route] display mode as shown below.

• : Key for inserting waypoint numbers

• : Key for deleting waypoint numbers

Display examples


(2) Turn to select [EDIT ROUTE] and press .

(3) Turn to select desired route plan number (02 for the example) and press . The

display mode title changes to [EDIT ROUTE #02].

[ROUTE] display mode

[Delete]

[Insert]


57

4.18.3 Erasing route plans

Registered Route plans can be erased using the procedure described below.

Display example


(2) Turn to select [ERASE ROUTE] and press .

(3) Turn to select the desired route plan number (02 for the example) and press . This

displays the message [ARE YOU SURE? ENT].

(4) Press once more to erase the selected route plan after which the [ROUTE MENU] ap-

pears.

• To cancel deletion, press .

[Route Menu]

[ROUTE] display mode

(4) This example will show how to delete waypoint 003 from LEG 002 and to insert a new waypoint

005.

• Deleting waypoint #003

As shown above, turn to select LEG002 and press to confirm LEG002.

Press to delete #003 of LEG002. This deletes waypoint #003 and the number of leg are

decremented.

• Insert waypoint #005

As shown above, turn to select LEG002 and press to confirm LEG002.

Press , enter #003 for #005 and press .

Waypoint #005 is inserted and the number of leg are incremented.

Tip You cannot edit a route plan that is being executed.


58

4.19 Setting GPS information

For information on entry operations given below, see Section 4.6, “Basic menu selection operations.”

Display examples

4.19.1 Setting position fix mode and averaging for GPS

1. Setting position fix mode

(1) Press in the [STATUS] mode display.

This action displays the [STATUS/SF MENU] .

(2) Turn to select [FIX MODE] and press .

(3) Enter 2D or Auto (default)

• 2D• Auto (2D or 3D are automatically selected)

During GPS position fixing When the correct antenna height is entered, [2D] becomes more accurate

than [3D].

• During DGPS position fixing, “auto” is used regardless of selection in [FIX MODE].

2. Setting Averaging Time

This navigator calculates position, ship speed and course using signals sent from GPS satellites. The

problem with this data is the dispersion introduced by satellite location and receiving conditions. To

average this dispersion, you can set the desired averaging time from 01 to 99 seconds.

Large values reduces dispersion. Small values increases dispersion, but you can more speedily track

the conditions of the ship.

(1) Press in the [STATUS] mode display.


(2) Turn to select [AVERAGING] and press .

(3) Enter averaging time (01 to 99 seconds). (default value: 10 seconds)

[STATUS] Display Mode [STATUS/SF Menu]


59

4.19.2 Initializing GPS/DGPS receiver

The following benefits are provided by initializing GPS/DGPS receiver.

• Position fixing the first time the navigator is used or after a master reset takes about 20 minutes.

Initializing reduces this time.

Display example

(1) Press in the [STATUS] display mode.


(2) Turn to select [ESTIMATED L/L] and press .

The [ENTER YOUR LATITUDE] is highlighted.

(3) Enter the estimate a position of the ship. (within a deviation range of 1¡).

[ANT HT] is now highlighted.

(4) Enter the height of the shipÕs antenna.

[DATE] is now highlighted.

(5) Enter local time (date). (month/day/year)

[TIME] is now highlighted.

(6) Enter local time (time). (hour /minute/second)

Second is no need to enter the value, only press .

[STATUS/SF Menu] [ESTIMATED L/L] [ESTIMATED L/L]


60

4.19.3 TD initializing

The first time the navigator is used or after a master reset, the position display format is set to latitude

and longitude (L/L) and the name of the menu in the [STATUS/SF MENU] is not [ESTIMATED TD]

but [ESTIMATED L/L] . (See Section 4.19.2, “Initializing, GPS/DGPS receiver”.) Thus set the [TD]

in the [L/L OR TD] menu.

Display Example

(1) The [POSITION] display mode opens after powering up.

(2) Press and select [L/L OR TD] .

(3) Enter [TD] as the [L/L OR TD].

(4) Press to return to the [POSITION] display mode.

(5) The [STATUS] display mode opens.

(6) Press to select [STATUS/SF MENU] .

(7) Select [ESTIMATED TD] and press .

(8) Enter the relevant GRI NO.

(9) Enter S1 and S2 Enter the two most significant TD digits in S1 and S2.

[STATUS/SF MENU] [ESTIMATED TD]


61

4.19.4 Setting DGPS beacon

The frequency and Baud rate of the received beacon station can be set.

Display example



(2) Turn to select [DGPS Beacon] and press .

When a DGPS beacon receiver or DGPS receiver (DGPS200) is not connected, the message [No

CONNECT].

(3) Setting Receive mode

Turn to select mode and press .

When [Auto ] is selected, the display return to [STATUS/SF Menu].

(4) Enter the frequency and Baud rate.

When [Manual ] is set, enter the values in [FREQUENCY] and [BAUD RATE].

[STATUS/SF Menu] display mode [STATUS/SF MENU DGPS] display mode


62

When a PC (Personal Computer) is connected to this unit, the output level must be

set to TTL when data is input from the PC since an RS-422 setting could damage the

PC and this unit.

4.20 Setting Data Output and transmit memory data

CAUTION

Data transmissions with external equipment can be performed using the data input and output connec-

tions of the power cable.

• Output level

The output level when data is exchanged with external equipment (NMEA0183 data output,

memory I/O) can be set to TTL or RS-422.

The output level must be set before data is exchanged with external equipment.

The following two types of data are supported in communications with external equipment.

• Output data

GPS data conforming to the NMEA183 format and navigation data (version 1.5/2.1 switching

function) are output (For details, see Appendix C, “NMEA0183 Output Sentence and Data

Format.”)

• Memory data I/O

The J-NAV500 is to transfer the waypoint and route memory contents of the internal memory to

external equipment and to re-load the memory from the equipment. (See Appendix D, “Waypoint/

Route Plan Data In/Output.”)

Display example

[STATUS S/F MENU] display mode [Special Function] display mode [Special Function Data Output] display mode

[Special Function Memory In/Out] display Mode


63

1. Output level setting



(2) Turn to select [SPECIAL FUNCTION] and press .

The [SF MENU] display mode appears.

(3) Turn to select [DATA OUTPUT] and press .

The [SF MENU DATA OUTPUT] display mode appears.

(4) Turn to select [OUTPUT LEVEL] and press .

(5) Set [OUTPUT LEVEL] (RS-422/TTL (default))

2. Output data setting




The [SF MENU] display mode appears.

(3) Turn to select [DATA OUTPUT] and press .

The [SF MENU DATA OUTPUT] display mode appears.

(4) Turn to select [NMEA0183] and press .

(5) Set the version of NMEA0183 (1.5 (default)/2.1).

3. Transmitting Memory Data




The [SPECIAL FUNCTION] display mode appears.

(3) Turn to select [MEMORY IN/OUT] and press .

This displays the [SPECIAL FUNCTION MEMORY IN/OUT] display mode.

(4) Memory Data Output

Waypoint and route plan data can be uploaded separately to external equipment such as a PC.

This data can be saved and edited on external equipment.

During the upload the message [UPLOADING] is displayed. The time required for the transfer

depends on the amount of data transferred.

• Waypoint data output

Select [OUTPUT WPT DATA] and press .

• Route plan data output

Select [OUTPUT ROUTE DATA] and press .


64




(3) Turn to select [SIMULATOR] and press .

(4) Set to on or off (default value).

The [SIM] indicator goes on when the simulator is on. Actual navigation cannot be performed during

simulation. The simulator must be turned off before navigation.

4.21 Displaying the Simulator Mode

The simulator function allows you to view approaches to waypoints and following route plans on the

various navigation displays when the ship is not actually moving.

Display example

(5) Memory data input

Waypoint and route plan data can be downloaded separately from external equipment such as a

PC.

During the download the message [DOWNLOADING] is displayed. When the message

ÒDOWNLOADINGÓ is displayed, inputs are received from external equipment. The time

required for the transfer depends on the amount of data transferred.

• Waypoint data input

Select [INPUT WPT DATA] and press .

• Route plan data input

Select [INPUT ROUTE DATA] and press .

The transfer rate is one memory per second.

[STATUS/SF MENU] display mode [SF MENU] display mode


65

4.22 Performing Master Reset

• A master reset clears registered date. Use this function with care.

• When resetting the navigator, perform Initializing GPS/DGPS receiver as described in section

4.19.2 when correcting for local time.

There are a soft and hard reset functions. A soft reset clears all data except waypoint and route plan

data. Thus items set or selected through operation are all returned to their default values. A hard reset

clears all data including waypoints and route plans.

Display example[STATUS/SF Menu] display mode [SF Menu] display mode





(3) Turn to select [MASTER RESET] and press .

(4) Select soft or hard reset and press .

A soft or hard reset is performed.


66

Daily maintenance and inspections will keep your navigator in good working order and prolong its

service life. Perform the following simple inspections before going to use and when occurring unit

trouble.

Is the unit properly secured or is it loose? Secure as necessary.

Are the connecting cables loose? Connect them firmly.

Is the fuse blown? Replace with a designated fuse.

Is the unit damaged? If the unit is not operating properly, have it

serviced by our agent or your dealer.

Are any of the connecting cables damaged. Damaged cables could cause electric shock,

fire or equipment damage. Do not continue

using under such conditions but take it to our

agent or your dealer for service.

The user must not perform internal inspections or repairs. Inspections and repairs

carried out by unauthorized personnel can cause fire or electric shock. Refer such

repairs and inspections to subsidiaries, branch offices sales departments or repre-

sentatives of Japan Radio Co., Ltd.

Use designated fuses. Use of other fuses may cause fire or breakdown.

Model:MF60NR-2A

Do not use other than designated batteries as this could lead to breakdown or mal-

function. The navigator is equipped with a lithium battery to back up RAM in the event

of a power outage. The life of the battery is more than five years. However, to ensure

proper operation of the receiver, replace it before it has been completely depleted. Let

JRC, our agents or dealers replace the battery for you when it is time to replace it.

Lithium battery

Model:CR2032-THD JRC code:5ZBBJ00006

WARNING

CAUTION

5. Maintenance and Inspection


67

6. After-sales Service

When asking for service

When you think the navigator is not operating normally, consult your dealer, our agent, branch, sales

department or subsidiary for advice.

Repair during warranty period

Should a malfunction occur when the navigator has been operated according to descriptions and

instructions in the instruction manual, it will be repaired free of charge. However, breakdowns

resulting from abuse, negligence, natural disaster, fire or other unforeseeable incident will be

charged.

Repair after warranty period

Repairs that restore normal operation made after the warranty period have to be paid in full by the

client.

Product data that should be provided when you ask for service

Name of product, model and serial number

Description of malfunction (as detailed as possible)

Company address or name of organization, address and telephone number

Checks and inspection

Product performance gradually declines with long use resulting in inaccurate measurements, although

the rate of this decline varies with frequency of use. To prevent this, periodic maintenance is required

in addition to regular inspections. For information on maintenance, contact your dealer. Note that

maintenance is charged for.

Inquiries should be directed to JRC. Addresses and telephone numbers are listed on the back cover of

this manual.


68

7. Disposal

Before you dispose of a lithium battery, place a piece of adhesive tape across the plus

an minus terminals to prevent electric shorts that could result in fire, explosions or

other hazards.

WARNING

7.1 Disposal of Navigator

Observe all national laws and regulations when you dispose of the navigator.

7.2 Handling Used Lithium Batteries

The navigator contains a lithium battery for battery backup.

Dispose of used lithium batteries as non-combustible garbage.

Insulate the + and - terminals by placing a piece of adhesive tape over them before disposal.

Observe all local regulations concerning the disposal of batteries.

For details, consult your dealer, our agent or sales department, or local authority.


69

8. SpecificationsDisplay

LCD Blue (neutral mode) STN type

Dot Materix: 128 x 100 dots

Size: 79 mm W x 61 mm H

LCD contrast adjustment Automatic adjustment by using temperature sensor and manual

adjust

Backlighting EL panel for LCD, LED for key switches

Brightness adjustment 2 step keyboard setting, high/low

Key switches 9 including 1 rotary encoder

Waypoints Max. 499

Entered as latitude/longitude, time difference or bearing/dis-

tance data

Route plans 20 plans, 199 waypoints max

Event Marks Max. 499 including waypoint memory

ShipÕs Track Max. 499 point memory

Position correction Automatic (46 geodetic systems registered)/manual

Alarms Waypoint arrival, anchor, off-course, No fix, non-connected

state, HDOP

Magnetic compass correction Automatic or manual correction

Unit Distance/speed: NM/KTS, SM/MPH, KM/PH (selectable)

Current position: 0.001Õ min

Plot function Scale: 0.125 nm to 100 nm

Track interval: 0.5, 1, 3, 5, 10 min, 0.2, 0.5 nm, OFF

GPS function Averaging: 1 to 99 sec settable (default value: 10 sec)

position fix mode: 2D/auto

Special functions •MOB function

• Simulator function (indicated as SIM)

•Loran C time difference

• 7 languages (English, German, Norwegian, French,

Spanish, Japanese, Italian)

•DGPS alarm

• Upload/download function of waypoint/route data

Data output • Output level: RS-422, TTL selectable

• NMEA0183 (version 1.5/2.1 selectable)

• Output sentences: GLL, VTG, APB, BWC, GGA, RMC, RMB


70

Memory backup Internal lithium battery

Power supply Input voltage: 12 VDC (10.8 to 16.0 VDC)

Power consumption: 6 W or less (with GPS/DGPS receiver)

OWeight less than 0.9kg.

Operating environment Ð15 C to +55 C

Storage environment Ð40 C to +80 C

Operating humidity +40 C, 93%


71

Appendices

Appendix A Message list

Error messages

Message Description

RAM NG Display RAM failure. Contact JRC sales department or local branch.

ROM NG Display ROM failure. Contact JRC sales department or local branch.

RCV NG GPS/DGPS receiver is not connected or is malfunctioning.

Connect GPS/DGPS receiver properly. If the message still persists, contact

JRC sales department or local branch.

Alarms

Message Description

ARV Arrival alarm. The ship has come inside set arrival range.

Press to silence alarm. The display goes blank when the distance is set

to 0.00 m.

ANC Anchor alarm. The ship has drifted outside the set distance range.


to 0.00 m.

XTE Off-course alarm. The ship has drifted more than the set distance off course.


to 0.00 m.

HDOP Indicates poor HDOP value. The HDOP indicator flashes when HDOP ex-

ceeds 4. Since HDOP is poor, GPS and DGPS receiver position accuracy is

poor. The alarm goes off when HDOP improves.

NO FIX GPS or DGPS receiver is not position fixing. Press to silence alarm.

Install GPS or DGPS receiver in location with better reception.

GPS DGPS alarm. When a DGPS alarm is set to on and the GPS or DGPS receiver

goes from DGPS to GPS position fixing, the buzzer sounds once.

MOB MOB function (displayed in the title area). The MOB function iscanceled when MOB is pressed for 3 seconds or longer.


72

Operation messages

Message Description

EVENT FULL Too many events (waypoints) registered. This message is displayed when an

attempt is made registered a new event.

Delete old data before making new registration.

WPT FULL Too many waypoints registered. Delete old data before making new registra-

tion.

This message is displayed when an attempt is made to set a waypoint by enter-

ing positions, bearings or distance.

NO WAYPOINT No waypoint has been registered.

Register a waypoint.

ROUTE FULL Too many routes registered. Delete old data before making new registration.

NO ROUTE No route has been registered.

Register a route.

A registered waypoint number has been specified in the registration of an event.

Register the event in a free waypoint number.

Confirmation message asking if a waypoint or route plan should be deleted.

Press to delete. To cancel deletion, press .

CALCULATING The program is calculating distance or position of waypoint or route plan.

Please wait.

DOWNLOADING The unit is downloading data from external equipment. Please wait.

UPLOADING The unit is uploading data to external equipment. Please wait.

SIM The simulator mode is on. To exit simulator mode, turn it off.

WPT NO DEST No waypoint was set in a route plan or in direct route.

NOW USING,

IN ROUTE,

DEST PT

ARE YOU SURE?

ENT


73

Appendix B Geodetic System Table

The navigator displays the names of geodetic system 1 to 9, but only the numbers are given for

datums 11 and beyond. Tables 1 and 2 list all the 46 geodetic system that are used.

Table 1


74

Geodetic system 11 to 47

Table 2


75

Appendix C NMEA0183 output sentence and data format

1. Output sentences

RMC : Recommended Minimum Specific GPS/Transit Data.

RMB : Recommended Minimum Navigation Information.

APB : Autopilot Sentence “B”.

BWC : Bearing & Distance to Waypoint.

GLL : Geographic position - Latitude/Longitude,

GGA : Global Position System Fix data.

VTG : Course Over Ground and Ground Speed.

2. Output timing

GGA/RMC/RMB/GLL : 2 seconds interval

APB/BWC/VTG : 2 seconds interval

3. Serial format

Baud rate : 4800 bps

Data bits : 8 bits

Parity : None

Start bit : 1 bit

Stop bit : 1 bit

4. Data format

<Version 1.5>

RMC sentences

$GPRMC,hhmmss,A,ddmm.mm,a,dddmm.mm,a,xx.x,xxx,xxxxxx,xx,a*hh<CR><LF>

1 : UTC of position fix (Hour, Minute, Second)

2 : Data status A: valid V: invalid

3, 4 : Latitude (Degree, Minute), N/S

5, 6 : Longitude (Degree, Minute), E/W

7 : Speed over ground (knot)

8 : Course over ground, degrees True

9 : Date : Day, Month, Year (UTC)

10, 11 : Magnetic variation, E/W

12 : Checksum

1 2 3 4 5 6 7 8 9 10 11 12


76

RMB sentences

$GPRMB,A,x.xx,a,cccc,cccc,llll.ll,a,yyyyy.yy,a,xxx.x,xxx,uxx.x,A*hh<CR><LF>


2 : Cross track error (NM)

3 : Direction to steer L = left, R = right

4 : Origin waypoint ID

5 : Destination waypoint ID

6, 7 : Destination waypoint latitude, N/S

8, 9 : Destination waypoint longitude, E/W

10 : Range to destination (NM)

11 : Bearing to destination, degree true

12 : Destination closing velocity (knot)

13 : Arrival status : A = Arrival circle entered, V = not entered/passed

14 : Checksum

APB sentences

$GPAPB,A,,x.xx,a,N,A,,xxx,a,cccc,xxx,a,,<CR><LF>


2 : Magnitude of XTE (cross-track-error)

3 : Direction to steer, L=left, R=right

4 : XTE units (NM)

5 : Arrival status A = Arrival circle entered, V = not entered/passed

6, 7 : Bearing origin to distination, M = Magnetic, T = True


9, 10 : Bearing, present position to destination, M = Magnetic, T = True

BWC sentences

$GPBWC,hhmmss,llll.ll,a,yyyyy.yy,a,xxx,T,xxx,M,xxx.x,N,cccc<CR><LF>

1 : UTC of observation (Hour, Minute, Second)

2, 3 : Waypoint latitude, N/S

4, 5 : Waypoint longitude, E/W

6, 7 : Bearing, degrees true

8, 9 : Bearing degrees magnetic

10, 11 : Distance (NM)

12 : Waypoint ID

1 2 3 4 5 6 7 8 9 10 11 12 13 14

1 2 3 4 5 6 7 8 9 10

1 2 3 4 5 6 7 8 9 10 11 12


77

GLL sentences

$GPGLL,ddmm.mm,a,dddmm.mm,a<CR><LF>



GGA sentences

$GPGGA,hhmmss,ddmm.mmm,a,dddmm.mmm,a,x,x,xx,uxxxx,M,,M,,<CR><LF>

1 : UTC of position (Hour, Minute, Second)



6 : GPS quality indicator 0 = GPS No Fix, 1= GPS Fix, 2 = Differential GPS Fix

7 : Number of statellites in use for position fix

8 : Horizontal dilution of precision (HDOP)

9, 10 : Antenna height above/below mean-sea-level (m), u:sign

VTG sentences

$GPVTG,xxx,T,xxx,M,xx.x,N,,<CR><LF>

1, 2 : Course, degree true

3, 4 : Course, degree Magnetic

5, 6 : Speed (knots)

<Version 2.1>

RMC sentences

$GPRMC,hhmmss,A,ddmm.mmm,a,dddmm.mmm,a,xx.x,xxx,xxxxxx,xx,a*hh<CR><LF>

1 : UTC of position fix (Hour, Minute, Second)




7 : Speed over ground (knot)

8 : Course over fround, degrees True

9 : Date : Day, Month, Year (UTC)

10, 11 : Magnetic variation, E/W

12 : Checksum

1 2 3 4 5 6

1 2 3 4

1 2 3 4 5 6 7 8 9 10

1 2 3 4 5 6 7 8 9 10 11 12


78

RMB sentences

$GPRMB,A,x.xx,a,cccc,cccc,llll.ll,a,yyyyy.yy,a,xxx.x,xxx,uxx.x,A*hh<CR><LF>


2 : Cross track error (NM)

3 : Direction to steer L = left, R = right

4 : Origin waypoint ID


6, 7 : Destination waypoint latitude, N/S

8, 9 : Destination waypoint latitude, E/W

10 : Range to destination (NM)

11 : Bearing to destination, degree true

12 : Destination closing velocity (knot)

13 : Arrival status : A = Arrival circle entered, V = not entered/passed

14 : Checksum

APB sentences

$GPAPB,A,,x.xx,a,N,A,,xxx,a,cccc,xxx,a,,*hh<CR><LF>


2 : Magnitude of XTE (cross-track-error)

3 : Direction to steer, L=left, R=right

4 : XTE units (NM)

5 : Arrival status A = Arrival circle entered, V = not entered/passed

6, 7 : Bearing origin to distination, M = Magnetic, T = True


9, 10 : Bearing, present position to destination, M = Magnetic, T = True

11 : Checksum

BWC sentences

$GPBWC,hhmmss,llll.ll,a,yyyyy.yy,a,xxx,T,xxx,M,xxx.x,N,cccc*hh<CR><LF>

1 : UTC of observation (Hour, Minute, Second)2, 3 : Waypoint latitude, N/S

4, 5 : Waypoint longitude, E/W6, 7 : Bearing, degrees true8, 9 : Bearing, degrees magnetic

10, 11 : Distance (NM)12 : Waypoint ID13 : Checksum

1 2 3 4 5 6 7 8 9 10 11 12 13 14

1 2 3 4 5 6 7 8 9 10 11

1 2 3 4 5 6 7 8 9 10 11 12 13


79

GLL sentences

$GPGLL,ddmm.mmm,a,dddmm.mmm,a,hhmmss,A*hh<CR><LF>

1, 2 : Latitude ((Degree, Minute), N/S


5 : UTC of position (Hour, minute, Second)

6 : Data status A: valid, V: invalid

7 : Checksum

GGA sentences

$GPGGA,hhmmss,ddmm.mmm,a,dddmm.mmm,a,x,x,xx,uxxxx,M,,M,,*hh<CR><LF>

1 : UTC of position (Hour, Minute, Second)

2, 3 : Latitude ((Degree, Minute), N/S


6 : GPS quality indicator 0 = GPS No Fix, 1= GPS Fix, 2 = Differential GPS Fix

7 : Number of statellites in use for position fix

8 : Horizontal dilution of precision (HDOP)

9, 10 : Antenna height above/below mean-sea-level (m), u:sign

11 : Checksum

VTG sentences

$GPVTG,xxx,T,xxx,M,xx.x,N,,*hh<CR><LF>

1, 2 : Course, degree true

3, 4 : Course, degree Magnetic

5, 6 : Speed (knots)

7 : Checksum

1 2 3 4 5 6 7

1 2 3 4 5 6 7 8 9 10 11

1 2 3 4 5 6 7


80

Appendix D Waypoint/Route Plan Data In/Output

Serial format

Baud rate : 4800 bps

Data bits : 8 bits

Parity : None

Start bit : 1 bit

Stop bit : 1 bit

Waypoint data I/O

$PJWPL,llll.lll,a,yyyyy.yyy,a,ccc*hh

1, 2 : Latitude ( , minute)

3, 4 : Longitude ( , minute)

5 : Waypoint number

6 : Checksum

Example : $PJWPL,3543.501,N,13934.020,E,001*7D

$PJWPL,3543.324,N,13933.786,E,002*7O

:

:

Route plan data I/O

$PJRTE,xxx,xxx,a,ccc,ccc,------------------,ccc*hh

1 : Total number of ROUTE messages

2 : ROUTE message serial number

3 : Message mode C

4 : Route plan number

5 : Waypoint number of route plan

6 : Checksum

Example :

$PJRTE,003,001,C,001,001,002,003,004,005,006,007,008,009,010,011,012,013,014*2E

$PJRTE,003,002,C,001,015,016,017,018,019,020,021,022,023,024,025,026,027,028*27

$PJRTE,003,003,C,001,029,030,031,032,033,034,035,036,037,038*28

$PJRTE,001,001,C,002,001,005,007*37

:

:

1 2 3 4 5 6

1 2 3 4 5 5 6


81

Appendix E Waypoint List

Waypoint no. Waypoint name Remarks


82

Waypoint no. Waypoint name Remarks

INSTRUCTION MANUAL

GPS NAVIGATORNWZ-4551

For further information contact :

HEAD OFFICE &

SALES DEPT.

Akasaka Twin Tower(MAIN),

17-22, Akasaka 2-chome, Minato-ku,


Phone

Fax

Telex

CODE No.7ZPNA0115

MODEL DC-50-NWZ-4551

Made in JAPAN

Mar. 1998 (First Edition)

May. 1998 KP (2500)

: +81-3-3584-8711

: +81-3-3584-8715

: 0242-5420 JRCTOK J

MAIN PLANT 1-1, Shimorenjaku 5-chome, Mitaka-shi,


Phone

Fax

Telex

: +81-422-45-9111

: +81-422-45-9110

02822-351 JRCMTK J

MODE

MENU

MOB

DIMCONT

CLR PWR

EVENT

GOTO

OFF OFF

PUSH

GPS NAVIGATOR

j Nav500 Instr

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