JRC JMA-3910-6, JMA-3925-6, JMA-3925-7 Instruction Manual

PREFACE

Thank you very much for purchasing the JRC marine radar equipment, JMA-3910-4/6 and JMA-3925-6/7/9.

This equipment is a marine radar equipment designed to obtain safe operation of marine ships. The equipment consists of a radar signal transceiver unit, a CRT display unit and a scanner unit as its main units.

●

Before operating the equipment, be sure to read this instruction manual carefully for correct operation.

●

Maintain this instruction manual so that operators can refer to it at anytime.

Refer to this manual when any inconvenience or defect occur.

I

●

Before Operation

●

Pictorial Indication

Various pictorial indications are included in this manual and are shown on these equipment so that you can operate them safely and correctly and prevent any danger to you and ／ or to other persons and any damage to your property during operation. Such indications and their meanings are as follows.

Please understand them before you read this manual:

WARNING

This indication is shown where any person is supposed to be in danger of being killed or seriously injured if this indication is neglected and these equipment are not operated correctly.

CAUTION

This indication is shown where any person is supposed to be injured or any property damage is supposed to occur if this indication is neglected and these equipment are not operated correctly.

Examples of pictorial indication

Disassembling prohibited

Disconnect the power plug

Electric shock

Prohibition

Instruction

The

▲

mark represents CAUTION (including DANGER and

WARNING).

Detailed contents of CAUTION (“Electric Shock” in the example on the left.)is shown in the mark.

The mark represents prohibition.

Detailed contents of the prohibited action (“Disassembling

Prohibited” in the example on the left) is shown in the mark.

The ● mark represents instruction.

Detailed contents of the instruction (“Disconnect the power plug” in the example on the left) is shown in the mark.

Warning label

There is a warning label on the top cover of the equipment.

Do not try to remove, break or modify the label.

II

●

Cautions to be Used During Operation

●

WARNING

Do not touch the insides of the scanner unit, transceiver and display unit.

Touching any high voltage area, you will get an electric shock. For maintenance, inspection and adjustment of internal parts of these equipment, consult with our sales office or distributor in your district.

Since the scanner unit radiator rotates, do not approach it.

The scanner unit may start rotating suddenly, and consequently any person may be struck and be injured. We recommend you to install the scanner unit radiator on the roof of the wheel house, flying bridge, trestle, radar mast or any other high position so that no person can approach it. When servicing the scanner unit, set the scanner unit safety button to the OFF position.

Install the scanner unit at any place higher than any person.

If being exposed directly to electric wave at close range, you may suffer adverse influence.

When approaching the antenna for maintenance or inspection, set the power button of the display unit to the ST-BY position.

If being exposed directly to electric wave at close range, you may suffer adverse influence.

CAUTION

Use these radar only as assisting devices for navigation.

Also, the officer should make the final decision for maneuvering by himself.

III

◆◆◆◆

PRECAUTIONS BEFORE OPERATION

◆◆◆◆

Cautions for high voltage

High voltages from hundreds volts to tens of thousands volts are to be applied to the electronic equipment such radio and radar devices. You do not face any danger during normal operation, but sufficient cares are required for maintenance, inspection and adjustment of their internal components.

(Authorized maintenance personnel alone are permitted to implement maintenance, check-ups or adjustment of internal components.)

High voltages of tens of thousands volts are so dangerous as to bring an instantaneous death from electric shock, but even voltages of hundreds volts may sometimes lead to a death from electric shock. To prevent such an accident, make it a rule to turn off the power button, discharge capacitors with a wire surely earthed on an end and make sure that internal parts are no longer charged before you touch any parts inside these devices. At the time, wearing dry cotton gloves ensures you further to prevent such danger. It is also a necessary caution to put one of your hands in the pocket and not to use your both hands at the same time.

It is also important to select a stable foothold always to prevent additional injuries once you were shocked by electricity. If you were injured from electric shock, disinfect the burn sufficiently and get it taken care of promptly.

What to do in case of electric shock

When finding a victim of electric shock, turn off the power source and earth the circuit immediately.

If it is impossible to turn off the circuit, move the victim away promptly using insulators such as dry wood plate and cloth without touching the victim directly.

In case of electric shock, breathing may stop suddenly if current flows to the respiration center in the brain. If the shock is not so strong, artificial respiration may recover breathing. When shocked by electricity, the victim will come to look very bad with weak pulse or without beating, resulting in unconsciousness and rigidity.

IV

◆◆◆◆◆◆◆◆◆

FIRST AID TREATMENTS

◆◆◆◆◆◆◆◆◆

✩

First-aid treatments

As far as the victim of electric shock is not in dangerous condition, do not move him and practice artificial respiration on him immediately. Once started, it should be continued rhythmically.

(1) Do not touch the victim confusedly as a result of the accident, but the rescuer may also get an electric shock.

(2) Turn off the power source calmly and certainly and move the victim away quietly from the electric line.

(3) Call a physician or ambulance immediately or ask someone to call a doctor.

(4) Lay the victim on his back and loosen his necktie, clothes, belt, etc.

(5) a. Examine the victim’s pulse.

b. Examine his heartbeat bringing your ear close to his heart.

c. Examine his breathing bringing the back of your hand or your face close to his face.

d. Check the size of the pupils of his eyes.

(6) Open the victim’s mouth and take out artificial teeth, cigarette or chewing gum if any. Keep his mouth open, stretch his tongue and insert a towel or the like in his mouth to prevent the tongue from suffocating. (If it is hard to open his mouth due to set teeth, open it with a screwdriver and insert a towel in this mouth.)

(7) Then, close his mouth so that foaming mucus does not accumulate inside.

V

✩

When pulse is beating but breathing has stopped

(1) Tilt the victim’s head back as far as this face looks back. (A pillow may be inserted under his neck.)

(2) Push his jaw upward to open his throat wide (to spread his airway).

(3) Pinch the victim’s nostrils and take a deep breath, block his mouth completely with yours and blow into his mouth strongly. Take a deep breath again and blow into his mouth. Continue this

10 to 15 times a minute (blocking his nostrils).

(4) Carefully watch that he has recovered his natural breathing and stop practicing artificial respiration.

(5) If it is difficult to open the victim’s mouth, insert a rubber or vinyl tube into one of his nostrils and blow into it blocking the other nostril and his mouth completely.

(6) When the victim recovers consciousness, he may try to stand up suddenly, but let him lie calmly and serve him with a cup of hot coffee or tea to keep him warm and quiet. (Never give him alcoholic drinks.)

Method of mouth-to-mouth respiration by raising head q w

Raise the victim’s head. Support his forehead with one of your hand and his neck with the other hand.

→ q

When you tilt his head backward, the victim, in most cases, opens his mouth to the air. This makes mouth-to-mouth respiration easy.

Cover his mouth as widely as possible with yours and press your cheek against his nose

→ w

, or, pinch his nostrils with your fingers to prevent air from leaking.

→ e e

Blow into his lungs.

Continue blowing into his mouth until his breast swells. Blow into his mouth as quickly as possible for the first 10 times.

Mouth-to-mouth respiration

VI

✩

When both pulse and breathing have stopped

When no pulse has come not to be felt, his pupils are open and no heartbeat is heard, cardiac arrest is supposed to have occurred and artificial respiration must be performed.

(1) Place your both hands, one hand on the other, on the lower one third area of his breastbone and compress his breast with your elbows applying your weight on his breast so that it is dented about 2cm (repeat compressing his breast 50 times or so a minute). (Cardiac massage)

(2) In case of one rescuer,

Repeat cardiac massages about 15 times and blow into his mouth 2 times quickly, and repeat this combination.

In case of two rescuers,

One person repeats cardiac massages 5 times while the other person blows into his mouth once, and they shall repeat this combination. (Cardiac massage and mouth-to-mouth respiration)

(3) Examine his pupils and his pulse sometimes. When the both have returned to normal, stop the artificial respiration, serve him with a cup of coffee or tea and keep him warm and calm while watching him carefully. Commit the victim to a medial specialist depending on his condition.

To let him recover from the mental shock, it is necessary for persons concerned to understand his situations and the necessary treatments.

q w e r

Cardiac massage

VII

EQUIPMENT APPEARANCE

Scanner Type NKE-1055-4 (4 feet) Scanner Type NKE-1055-6 (6 feet)

Scanner Type NKE-1056-6 (6 feet) Scanner Type NKE-1056-7 (7 feet)

Scanner Type NKE-1056-9 (9 feet)

Display Unit Type NCD-3780

VIII

CONTENTS

PREFACE ········································································································ I

Before Operation ··························································································· II

Cautions to be Used During Operation ······················································ III

PRECAUTIONS BEFORE OPERATION ····················································· IV

Cautions for high voltage .......................................................................................................... IV

What to do in case of electric shock .......................................................................................... IV

FIRST AID TREATMENTS ············································································ V

✩

First-aid treatments ..................................................................................................................... V

✩

When pulse is beating but breathing has stopped ...................................................................... VI

✩ When both pulse and breathing have stopped .......................................................................... VII

EQUIPMENT APPEARANCE ···································································· VIII

GLOSSARY ································································································· XV

1. GENERAL AND EQUIPMENT COMPOSITION

1.1

Functions ···························································································1-1

1.1.1

Functions of This Equipment .......................................................................................... 1-1

1.2

Features ·····························································································1-2

1.3

Composition ······················································································1-3

1.4

Configuration ·····················································································1-4

1.5

General System Diagram ································································1-11

2. NAMES AND FUNCTIONS OF CONTROL PANEL

CONTROLS AND MENU COMPOSITION

2.1

Names and Functions of Control Panel ·········································· 2-1

2.2

Menu Composition ··········································································2-11

2.2.1

Menu Selection .............................................................................................................. 2-11

2.2.2

Menu List ...................................................................................................................... 2-12

3. BASIC OPERATION

3.1

Flow of Operation ··············································································3-1

3.1.1

Turning Power on and Starting the System ..................................................................... 3-2

3.1.2

Tuning ............................................................................................................................. 3-3

3.1.3

Observation and Video Adjustment ................................................................................ 3-3

3.1.4

Data Acquisition and Measurement ................................................................................ 3-4

3.1.5

Ending Operation and Stopping the System .................................................................... 3-4

3.2

Preparation ························································································3-5

3.2.1

Tuning [TUNE] .............................................................................................................. 3-5

3.2.2

Adjusting Sensitivity [GAIN] ......................................................................................... 3-5

IX

3.2.3

Adjusting CRT Brilliance [BRILL] ................................................................................ 3-5

3.2.4

Suppressing Sea Clutter [SEA CLUTTER] .................................................................... 3-6

3.2.5

Suppressing Rain and Snow Clutter [RAIN CLUTTER] ............................................... 3-7

3.2.6

Adjusting Brilliance ........................................................................................................ 3-8

3.2.7

Selecting DAY ／ NIGHT Modes [DAY ／ NIGHT] .................................................... 3-9

3.2.8

Setting Color .................................................................................................................. 3-10

3.2.8.1

Background Color ........................................................................................ 3-11

3.2.8.2

Setting Radar Video and Trail Color ............................................................ 3-12

3.2.9

Rejecting Radar Interference ......................................................................................... 3-13

3.2.10

Adjusting Control Panel Brilliance [PANEL DIM] ······················································ 3-13

3.3

Basic Operation ···············································································3-14

3.3.1

Using Trackball to Move Cursor "+" ............................................................................ 3-14

3.3.2

Using EBL (Electronic Cursor) [EBL] .......................................................................... 3-14

3.3.3

Selecting Range Scales [RANGE] ................................................................................ 3-17

3.3.4

Selecting Pulse Width [PULSE WIDTH] ..................................................................... 3-17

3.3.5

Disabling Ship's Head Marker [SHM] .......................................................................... 3-17

3.3.6

Using Parallel Index Line .............................................................................................. 3-18

3.3.7

Selecting Presentation Mode [BEARING] .................................................................... 3-20

3.3.8

Selecting True Motion ／ Relative Motion Display Modes

[TM ／ RM] [TM RESET] ............................................................................................ 3-21

3.3.9

Changing Own Ship Display Position [OFF CENT] .................................................... 3-23

3.3.10

Displaying Other Ship's Trails [TRAIL] ······································································· 3-23

3.3.11

Displaying Fixed Range Ring [RANGE RINGS] ························································· 3-25

3.3.12

Displaying Variable Range Markers [VRM] ································································ 3-25

3.3.13

Using Alarm [ALARM] ································································································ 3-27

3.3.14

Resetting Alarm [ACK] ································································································· 3-29

3.3.15

Setting Alarm Sound Level ··························································································· 3-30

3.3.16

Enhancing Target ·········································································································· 3-31

3.3.17

Setting Cross Cursor Length and Fixing Cursor Position ············································· 3-33

3.3.18

Displaying Ship's Stern Marker ····················································································· 3-35

3.3.19

Setting Range Unit in KM ····························································································· 3-36

3.3.20

Displaying Video Processing Screen ············································································ 3-37

3.3.21

Zooming Display ··········································································································· 3-39

3.3.22

Selecting Display Mode [MODE] ················································································· 3-40

3.3.23

Using Electronic Plot (EPA) ························································································· 3-40

3.3.23.1

Plotting Target .............................................................................................. 3-40

3.3.23.2

Modifying Plot ............................................................................................. 3-41

3.3.23.3

Deleting Plot ................................................................................................. 3-41

3.3.23.4

Displaying Plot Numerical Data ................................................................... 3-42

3.3.23.5

Plot Symbol .................................................................................................. 3-43

3.3.23.6

Setting Vector Display ................................................................................. 3-44

3.3.23.7

Setting Vector Time ..................................................................................... 3-45

3.3.23.8

Displaying ／ Clearing Plot No. ................................................................... 3-46

3.3.23.9

Setting CPA ／ TCPA .................................................................................. 3-47

3.3.23.10 Turning Alarm Sound On ／ Off .................................................................. 3-49

3.3.23.11 Displaying ／ Clearing CPA Ring ................................................................ 3-50

X

3.3.24

Displaying Date and Time ............................................................................................. 3-51

3.3.25

Displaying the Plain Radar Screen ................................................................................ 3-53

3.3.26

Setting Echo Power ....................................................................................................... 3-55

3.4

Using Function Key [FUNC] ···························································3-56

3.4.1

Overview ....................................................................................................................... 3-56

3.4.2

Operation Method .......................................................................................................... 3-56

3.4.3

Function Setting Items ................................................................................................... 3-57

3.4.4

Operation Outline of the Function Setting Items .......................................................... 3-58

3.5

Displaying the Chart ·······································································3-70

3.5.1

Displaying a C-MAP Marine Chart ............................................................................... 3-70

3.5.2

Displaying Shoreline ROM Card made by JRC ............................................................ 3-72

3.5.3

Displaying the ERC Card .............................................................................................. 3-73

3.5.4

Display the JRC Chart ................................................................................................... 3-74

3.5.5

Displaying the Contour of the Shoreline ROM Card by JRC ....................................... 3-75

3.6

Displaying Own Ship Track ····························································3-77

3.6.1

Changing Track Color [Combined Plotter] ................................................................... 3-77

3.6.2

Selecting Track Storing Interval .................................................................................... 3-77

3.6.3

Stopping Track Storing ................................................................................................. 3-79

3.6.4

Deleting Track by Color (Using the [COLOR] Control) .............................................. 3-81

3.6.5

Deleting Track by Color (Using Menu) ........................................................................ 3-83

3.6.6

Displaying or Hiding Track by Color ............................................................................ 3-85

4. MEASUREMENT

4.1

Measurement with Trackball ····························································4-1

4.2

Measurement with Fixed Range Ring ··············································4-2

4.3

Measurement with Electronic Cursor and Variable Range Marker ······························································4-3

4.4

Measurement between Two Optional Points of Target ··················4-4

5. TRUE AND FALSE ECHOES ON DISPLAY

5.1

Radar Line-of-sight Range ·······························································5-1

5.2

Strength of Reflection from Target ··················································5-3

5.3

Sea Clutters ·······················································································5-3

5.4

False Echoes ·····················································································5-3

5.5

Display of Radar Transponder ·························································5-6

6. MAINTENANCE

6.1

Routine Maintenance ········································································6-1

6.1.1

Cleaning ........................................................................................................................... 6-1

6.2

Maintenance of Each Unit ·································································6-2

6.2.1

Scanner Unit NKE-1055 ／ 1056 .................................................................................... 6-2

6.2.2

Display Unit NCD-3780 .................................................................................................. 6-4

XI

7. COUNTERMEASURES FOR TROUBLE

AND ADJUSTMENT

7.1

Function Check ·················································································7-1

7.1.1

Function Check ................................................................................................................ 7-1

7.1.2

Testing Functions with Menu .......................................................................................... 7-1

7.1.2.1

Memory Test .................................................................................................. 7-2

7.1.2.2

Key Switch Test ............................................................................................. 7-3

7.1.2.3

Sensor Test ..................................................................................................... 7-4

7.1.2.4

Line Test ......................................................................................................... 7-4

7.1.2.5

ROM Version ................................................................................................. 7-5

7.1.2.6

ARPA Status ................................................................................................... 7-6

7.1.2.7

Error Logging ................................................................................................. 7-6

7.1.2.8

Magnetron Current, Running and Transmission Time ................................... 7-7

7.2

Failure Check ·····················································································7-8

7.3

Troubleshooting ··············································································7-10

7.4

Replacement of Major Parts ···························································7-12

7.5

Adjustment and Setting ··································································7-17

7.5.1

NSK Unit Adjustment ................................................................................................... 7-17

7.5.2

Adjustment and Setting at Installation .......................................................................... 7-20

7.5.2.1

Adjusting Tuning .......................................................................................... 7-20

7.5.2.2

Adjusting Bearing ......................................................................................... 7-21

7.5.2.3

Adjusting Range ........................................................................................... 7-22

7.5.2.4

Setting Antenna Height ................................................................................ 7-23

7.5.3

Various Setting .............................................................................................................. 7-24

7.5.3.1

Setting Own Ship Course Equipment ........................................................... 7-24

7.5.3.2

Setting HDG SENSOR Adjustment ............................................................. 7-25

7.5.3.3

Setting Own Ship Speed Equipment ............................................................ 7-27

7.5.3.4

Setting Screen Mode .................................................................................... 7-28

7.5.3.5

Setting Fishing Boat ／ Merchant Ship Mode .............................................. 7-29

7.5.3.6

Setting True Bearing .................................................................................... 7-31

7.5.3.7

Setting Ship Speed ........................................................................................ 7-33

7.5.3.8

Setting Drift .................................................................................................. 7-34

7.5.3.9

Setting PRF ................................................................................................... 7-35

7.5.3.10

Setting Transmission Repetition Frequency ................................................. 7-36

7.5.3.11

Connecting Navigation Equipment .............................................................. 7-37

7.5.4

GPS Initial Setting ／ Receiving Status ........................................................................ 7-39

7.5.4.1

GPS Initial Setting ........................................................................................ 7-39

7.5.4.2

Checking GPS Receiving Status .................................................................. 7-43

7.5.5

Setting DGPS ／ Checking DGPS Receiving Status .................................................... 7-45

7.5.5.1

Setting DGPS ............................................................................................... 7-45

7.5.5.2

Checking DGPS Receiving Status ............................................................... 7-47

7.5.6

Maintenance Menu ........................................................................................................ 7-48

7.5.6.1

Serial Input Equipment ................................................................................. 7-48

XII

7.5.6.2

Antenna Switch ............................................................................................ 7-49

7.5.6.3

Partial Master Reset ...................................................................................... 7-49

7.5.6.4

Total Master Reset ........................................................................................ 7-49

7.5.6.5

Internal Setting to Card 2 ............................................................................. 7-50

7.5.6.6

Card 2 to Internal Setting ............................................................................. 7-51

7.5.6.7

User Memory ................................................................................................ 7-51

7.5.6.8

Restoring User Memory ............................................................................... 7-52

7.5.7

Adjusting Position to Chart ........................................................................................... 7-53

7.5.7.1

Adjusting Video and Chart Using Trackball (R+P Mode) ........................... 7-53

7.5.7.2

Adjusting Video and Chart Position by Entering Adjustment Value

(R+P and Plotter Modes) .............................................................................. 7-54

7.5.7.3

Adjusting Position by Changing Longitude ／ Latitude Information from GPS (R+P and Plotter Modes) ............................................................. 7-55

7.5.7.4

Adjusting Position by Entering Latitude ／ Longitude on Own Ship .......... 7-56

7.5.8

Setting the Rectifier Unit (NBA-3308) ......................................................................... 7-57

8. AFTER-SALES SERVICE

9. DISPOSAL

9.1

Equipment Disposal ··········································································9-1

9.2

Disposal of Used Batteries ·······························································9-2

9.3

Disposal of Used Magnetron ····························································9-3

10. SPECIFICATION

10.1 General Specification

JMA-3910-4 ／ JMA-3910-6 ／ JMA-3925-6 ／ JMA-3925-7 ／ JMA-3925-9······10-1

10.2 Scanner Unit NKE-1055-4 ／ 6 ························································10-2

10.3 Scanner Unit NKE-1056-6 ／ 7 ／ 9 ·················································10-3

10.4 Display Unit NCD-3780 ····································································10-4

10.5 Inputable Signal ···············································································10-7

10.6 Outputable Signal ············································································10-7

10.7 Standard Equipment Configuration ···············································10-8

10.8 Installing Clearance between Equipment ·····································10-8

10.9 Others (Optional) ·············································································10-8

XIII

APPENDIX

Attached Figures

Appendix 1 Radar System Circuit Code List

Appendix 2 Circuit Diagram of Radar Type JMA-3910-4 ／ 6 and JMA-3925-6 ／ 7 ／ 9

Appendix 3 Terminal Board Connection Diagram of Radar Type JMA-3910-4 ／ 6

Appendix 4 Terminal Board Connection Diagram of Radar Type JMA-3925-6 ／ 7 ／ 9

Appendix 5 Primary Power Supply System Diagram of Radar Type JMA-3910-4 ／ 6 and JMA-3925-6 ／ 7 ／ 9

Appendix 6 Internal Connection Diagram of Scanner Unit Type NKE-1055

Appendix 7 Internal Connection Diagram of Scanner Unit Type NKE-1056

Appendix 8 Internal Connection Diagram of Display Unit Type NCD-3780

Appendix 9 Power Supply Connection Diagram of Display Unit Type NCD-3780

Appendix 10 NSK Log Selection Switches of Display Unit Type NCD-3780

Appendix 11 Setting Table of the Speed Log Select Switches of Display Unit Type NCD-3780

Appendix 12 Setting Table of the Gyro Compass and Gyro Select Switches of Display Unit Type

NCD-3780

XIV

GLOSSARY

This section explains common maritime terms and the terms used for this equipment.

ARPA (Automatic Radar Plotting Aid) : Supporting equipment for automatically preventing clash.

ATA (Automatic Tracking Aid) :

Fast Time Constant (FTC) :

Supporting equipment for automatically preventing clash.

Rain and snow clutter suppression.

Sensitivity Time Control (STC) :

Bearing :

COG :

CPA/TCPA :

CUP (Course-UP) :

Sea surface clutter suppression.

Direction

Course over Ground

Closest point of approach and time to closest point of approach limit as defined by the observer to give warning when a tracked target or targets will close to within these limits from own ship

An azimuth stabilized display in which a line connecting the centre of own ship with the top of the display is own ship's intended course

Electric bearing line centering the position of the own ship.

EBL (Electric Bearing Line) :

GPS (Global Positioning System) :

Ground stabilization :

Internationally-used positioning system.

A mode of display whereby own ship and all targets are referenced to the ground using ground track or set and drift inputs

Guard zone :

Heading :

HL :

HUP (Head-UP) :

IMO :

IR :

NM :

NSK :

NUP (North-UP) :

A zone in which an alarm is given when a target is detected

The direction in which the bows of a ship are pointing expressed as an angular displacement from north

Heading Line

Display mode in which the top of the screen corresponds to the ship's head maker.

International Maritime Organization

Interference Rejector

Nautical Mile (1 nm = 1,852 m)

Gyro compass and log interface

An azimuth stabilized display in which a line connecting the centre of own ship with the top of the display is north true bearing

Own track :

Range ring :

RM (Relative Motion) :

RM display :

Relative bearing :

Automatic track display function.

Fixed range ring.

The combination of relative course and relative speed

A display on which the position of own ship remains fixed and all targets move relative to own ship

The direction of a target from own ship expressed as an angular displacement from own ship's heading

XV

Relative course :

Relative speed :

The direction of motion of a target relative to own ship's position expressed as an angular displacement from north. It is deduced from a number of measurements of target range and bearing on own ship's radar

The speed of a target relative to own ship's position. It is deduced from a number of measurements of target range and bearing on own ship's radar

The predicted movement of a target relative to own ship Relative vector :

Scan CORR :

Scanner :

Sea stabilization :

Target ENH :

TM (True Motion) :

TM display :

Target emphatic processing function.

Antenna unit.

A mode of display whereby own ship and all targets are referenced to the sea, using gyro heading and single axis log water speed inputs

Target enhancing function.

The combination of true course and true speed

A display across which own ship and each target moves with

VRM :

Trails : its own true motion

Variable Range Marker

Tracks displayed by the radar echoes of targets in the form of a synthetic afterglow. The trails may be either relative or true.

The true trails may be sea or ground stabilized

Speed over Ground SOG :

True bearing :

True course :

True speed :

The direction of a target from own ship or from another target expressed as an angular displacement from north

The true direction of motion of a target expressed as an angular displacement from north. It is obtained by a vector combination of target relative motion and own ship's true motion

The speed of a target obtained by a vector combination of target relative motion and own ship's true motion

True vector : The predicted true motion of a target as a result of own ship's direction and speed input. The true vector may be either displayed with reference to the water or to the ground

Performance monitor : Additional equipment for monitoring transmission power and receiving sensitivity.

Floating EBL (Electric Bearing Line) : Electric bearing line centering a certain point.

XVI

7

8

5

6

3

4

1

2

GENERAL AND EQUIPMENT COMPOSITION

1

NAMES AND FUNCTIONS OF CONTROL

PANEL CONTROLS AND MENU COMPOSITION

2

BASIC OPERATION

3

MEASUREMENT

TRUE AND FALSE ECHOES ON DISPLAY

MAINTENANCE

COUNTERMEASURES FOR TROUBLE

AND ADJUSTMENT

AFTER-SALES SERVICE

9

DISPOSAL

10

SPECIFICATION

4

5

6

7

8

9

10

APPENDIX

1

GENERAL AND

EQUIPMENT

COMPOSITION

1.1

Functions······························································1-1

1.2

Features ································································1-2

1.3

Composition ·························································1-3

1.4

Configuration ·······················································1-4

1.5

General System Diagram ··································1-11

1.1

Functions

This equipment is a high performance, high quality, highly reliable and totally-large-scale-integrated

(excluding special electronic tubes) radar composed of a scanner unit, a transceiver and a display unit with a high resolution color CRT which adopts the raster scan method.

1.1.1 Functions of This Equipment

The major functions include target detecting color display, sea, rain or snow clutter restraint, sensitivity adjustment, interference rejection, distance and bearing measurement using a trackball, fixed and variable distance markers and an electronic cursor as well as an optional ARPA (manual and automatic target acquisition and vector, tracking and warning display), a plotter (own ship tracking and coastal line display) and an optional simple plotter (make and line display as well as target and course setting).

1 – 1

1.2

Features

Large, high resolution, easily visible diaplay

Thanks to the built-in high-precision (1024

×

768 pixels), non interlacing 15-inch color CRT, a radar video area of more than 180 mm is available. High resolution, near range video images can also be displayed.

Target detection using latest signal processing technology

Unnecessary clutter is eliminated from radar video signals received by the wide dynamic range receiver using the latest digital signal processing technology, improving target detecting performance.

Three (radar, composite and optional plotter) mode display

●

In the composite mode, radar video, coastal line and own ship tracks can all be displayed simultaneously.

●

In the plotter mode, marks and lines can be created and displayed as well as destination and courses set using the optional plotter function.

Up to 20,000 points can be used for own ship tracks, marks, and so forth.

Easy-to-operate key arrangement

The basic radar functions can easily be operated since the system has only with the minumum number of keys, enabling quick handling even in an emergency. Various other functions are also availabel through easy key operation and screen menu selection.

Optional ARPA utilizing latest technologies

The acquiring and tracking functions of the ARPA have been improved by adopting the latest radar signal processing and tracking technologies, achieving stable performance even when tracking objects in a clutter.

●

Up to 30 targets can be acquired and tracked.

●

Hazard statuses are identified by sound displayed using colored symbols with different shapes.

●

Fine display of other ship tracks (10 ships

×

800 points each) and 7-color display.

Enhanced functions for day and night

The hues of all 4 screens (2 each for day and night) can be set, enabling screen colors to be reproduced according to the operating environment through simple key operation. The screen are very easy to see since echo videos and various graphics are differenctiated by color.

Multiple functions

●

Radar trailing

● TM (True Motion) display

● Head-up, north-up, course-up and stabilized course-up display

●

Own ship track display

● Guard alarm function

1

1 – 2

1.3

Composition

Equipment componets

Radar type

JMA-3910-4

JMA-3910-6

JMA-3925-6

JMA-3925-7

JMA-3925-9

Scanner unit Display unit

Transmitting output

NKE-1055-4

(4ft slot antenna)

×

1

NKE-1055-6

(6ft slot anttenna)

×

1

NKE-1056-6

(6ft slot antenna)

×

1

NKE-1056-7

(7ft slot antenna)

×

1

NKE-1056-9

(9ft slot antenna)

×

1

NCD-3780

×

1

NCD-3780

×

1

NCD-3780

×

1

NDC-3780

×

1

NDC-3780

×

1

10 kW

10 kW

25 kW

25 kW

25 kW

Band

Remarks

Inboard power supply

Ship's power supply

(when an optional rectifier is used)

X DC24V

AC200 ／ 220 ／ 230V,

50 ／ 60Hz, 1

φ

AC100 ／ 110V,

50 ／ 60HZ, 1

φ

Spare parts and attachments

Item

Spare parts

Light blocking hood

Canvas cover

Instruction manual

Code Qty.

Remarks

6ZXRD00193 6

3

3 Display unit fuse

12 Display unit NSK circuit fuse

3

Display unit fuse

Display unit fuse

MF60NR-10A

MF60NR-0.5A

MF61-TS7

MF51NN-0.5A

Display unit monitor power supply circuit fuse

TSCUL1.5A

Scanner unit NKE-1055 carbon brush S00152-5C-70

Scanner unit NKE-1056 carbon brush 54511-03

NPOL30250B 1

MPXP31358 1

7ZPRD0518

2

2

1

1 – 3

1.4

Configuration

Outline Drawing of Scanner Unit Type NKE-1055-4 .................... Fig. 1.1

Outline Drawing of Scanner Unit Type NKE-1055-6 .................... Fig. 1.2

Outline Drawing of Scanner Unit Type NKE-1056-6 .................... Fig. 1.3

Outline Drawing of Scanner Unit Type NKE-1056-7 .................... Fig. 1.4

Outline Drawing of Scanner Unit Type NKE-1056-9 .................... Fig. 1.5

Outline Drawing of Display Unit Type NCD-3780 ........................ Fig. 1.6

1

1 – 4

1.4

Fig. 1.1 Outline Drawing of Scanner Unit Type NKE-1055-4

1 – 5

Fig. 1.2 Outline Drawing of Scanner Unit Type NKE-1055-6

1 – 6

1.4

1

1.4

Fig. 1.3 Outline Drawing of Scanner Unit Type NKE-1056-6

1 – 7

Fig. 1.4 Outline Drawing of Scanner Unit Type NKE-1056-7

1 – 8

1.4

1

1.4

Fig. 1.5 Outline Drawing of Scanner Unit Type NKE-1056-9

1 – 9

Fig. 1.6 Outline Drawing of Display Unit Type NCD-3780

1 – 10

1.4

1

1.5

General System Diagram

General System Drawing of Radar Type JMA-3910-4 ................. Fig. 1.7

General System Drawing of Radar Type JMA-3910-6 ................. Fig. 1.8

General System Drawing of Radar Type JMA-3925-6 ................. Fig. 1.9

General System Drawing of Radar Type JMA-3925-7 ................. Fig. 1.10

General System Drawing of Radar Type JMA-3925-9 ................. Fig. 1.11

1 – 11

Fig. 1.7 General System Drawing of Radar Type JMA-3910-4

1 – 12

1.5

1

1.5

Fig. 1.8 General System Drawing of Radar Type JMA-3910-6

1 – 13

Fig. 1.9 General System Drawing of Radar Type JMA-3925-6

1 – 14

1.5

1

1.5

Fig. 1.10 General System Drawing of Radar Type JMA-3925-7

1 – 15

Fig. 1.11 General System Drawing of Radar Type JMA-3925-9

1 – 16

1.5

1

2

NAMES AND FUNCTIONS

OF CONTROL PANEL

CONTROLS AND MENU

COMPOSITION

2.1

Names and Functions of Control Panel·············2-1

2.2

Menu Composition ············································2-11

2.1

Names and Functions of Control Panel

CAUTION

Do not put anythig on the touch panel.

Deforming may occur if a hot object is placed on it.

Do not apply a strong shock to the touch panel, track ball, and controls, otherwise they may get out of order.

2 – 1

2.1

Display Control Panel

3

1

SUB

MENU

2

MAIN

MENU

27

EBL

28

OFF

29

4

RANGE RANGE

5

6 TUNE 49 AUTO GAIN 7

8

RAIN CLUTTER AUTO SEA CLUTTER

9

50 51

10

BRILL

11

COLOR

X

1

6

Y

2

7

48

3

NUM

8

4

9

45

12 13 14

15

18

FUNC ALARM MODE

BEARING

16

SHM

DAY

NIGHT

OFF

CENT

RANGE

RINGS

TRAIL

5

0

30 31 32 33 34

SLOT 1

SLOT 2

46

ENT

F  EBL

35

TM

RESET

36

CLR

TM

RM

DATA

READ

ACQ

WIDTH

OWN

TRACK

MARK

TRACK TARGET

VECT−

DEST

VECT＋

21

TX

ST-BY

19

PANEL

DIM

22

24

VRM

26

23

ACK

25

OFF

17

20

POWER

ON/OFF

52

47 40 41 42 43 44

2

2 – 2

2.1

Operation controls and keys q [SUB MENU] key

Displays the sub menu on the screen.

w [MAIN MENU] key

Displays the main menu on the screen.

e Trackball

Moves the cursor to a desired position.

r / t [ ▽ ] and [ △ ] keys

Select the range between 0.125 and 96/120 nautical mile.

y [TUNE] control

Controls the target on the screen to be seen most clearly.

u [GAIN] control

Controls the receiving sensitivity of the radar.

i [RAIN CLUTTER] control

Decreases clutter videos due to rain or snow.

o [SEA CLUTTER] control

Decreases clutter videos due to reflection from the sea surface.

!0

[BRILL] control

Adjusts the brilliance of the display.

!1

[COLOR] control

Sets the color for the own and other ship tracks, marks and lines.

(7 colors: white, sky, blue, green, yellow, pink and red)

!2

[FUNC] key

Selects the pre-set video processing

!3

[ALARM] key

Displays the menu for setting an alarm.

!4

[MODE] key

Switches the system to the radar, composite or plotter mode.

!5

[BEARING] key

Switches the screen to the true bearing, relative bearing, course-up or stabilized course-up mode.

!6

[SHM] key

The SHM (Ship's Head Marker) can be cleared while this switch is being pressed.

!7

[DAY ／ NIGHT] key

Switches the screen color and brilliance according to each setting.

2 – 3

2.1

!8

[OFF CENT] key

Moves the position of the own ship within the screen to display your desired direction wide (within

66% of the radius) or returns the ship to the center.

!9

[RANGE RINGS] key

Turns the fixed range scale display on and off.

@0 [TRAIL] key

Displays or deletes the radar trail.

@1 [TX ／ ST-BY] switch

Selects between the transmission and standby modes.

@2 [PANEL DIM]

Adjusts the character light brilliance of each switch and control on the control panel.

@3 [ACK] switch

Stops alarm sound.

@4 [VRM] key

Selects the display of variable range scale 1 or 2.

@5 [OFF] switch

Selects turning on or off of the display of variable range scale 1 or 2.

@6 Variable range scale control

Changes the variable range scale size.

When the parallel index lines is displayed, the parallel line interval is changed

@7 [EBL] key

Selects the display of EBL1, EBL2 or the parallel index lines.

@8 [OFF] switch

Selects turning on or off of the display of EBL1, EBL2 or the parallel index lines.

@9 [EBL] control

Turns the bearing of EBL1, EBL2 or the parallel index lines.

#0 [F EBL ／ ] (floating EBL) ／ (enlarge ／ reduce) key

"In the merchant ship mode"

Switches the EBL2 to the floating EBL.

"In the fishing ship mode"

Enhances or reduces the chart when the plotter mode is selected.

#1 [TM RESET] key

Manually resets the own ship position in the true motion display mode.

#2 [TM ／ RM] key

Switches the screen display to the true motion (TM), to the relative motion (RM), to the stabilized relative motion (SRM) or to the true motion with constant own ship position (CTM).

2 – 4

2

2.1

#3 [DATA READ] key

Displays the target numerical values or sets or clears the target number using the electronic plot

(EPA) and ARPA (ATA).

#4 [ACQ] switch

Manually acquires the target when the electronic plot (EPA) or ARPA (ATA) is used.

#5 [ ] (originating point) key

Measures the distance between two points with the end point switch (in the radar mode).

Sets the simple course between two points with the end point switch (in the composite and plotter modes).

#6 [ ] (end point) key

Measures the distance between two points with the originating point switch (in the radar mode).

Sets the simple course between two points with the originating point switch (in the composite and plotter modes).

#7 [PULSE WIDTH] key

Switches the transmission pulse length (short, medium and long).

#8 [VECT ／ TRACK] key

"In the merchant ship mode"

Switches the vector display between true and relative.

"In the fishing ship mode"

Opens a menu for setting the other ship track color, storing interval, memory clear, etc. when the

ARPA function is added.

#9 [CANCEL TARGET] key

Cancels the target symbol and vector which are being tracked by the electronic plot (EPA) or ARPA

(ATA) and stops the tracking.

$0 [ ] (reverse) key

Turns the cursor display on and off and fixes it.

Used for the numerical data display in the electronic plot (EPA) and ARPA (ATA).

$1 [OWN TRACK] key

Enables the [COLOR] conrol to set the own ship track color.

Opens the menu for setting the own ship track storing interval, memory clear, etc.

$2 [MARK] key

Enables the [COLOR] conrol to set the mark and line colors.

$3 [VECT −／ DEST] key

In the merchant ship mode

Decreases the vector length when the electronic plot (EPA) or ARPA (ATA) is used.

In the fishing ship mode

Sets the destination and displays the distance to it in the form of numerical data.

2 – 5

2.1

$4 [VECT ＋／ ] (marker) key

In the merchant ship mode

Increases the vector length when the electronic plot (EPA) or ARPA (ATA) is used.

In the fishing ship mode

Puts a marker (MOB) at the position of the own ship to store it and displays the distance and bearing to it and the arrival time.

$5 [0 to 9] keys

Selects menu items and enters numerical data, etc.

Enters the event and cursor marks and lines when the plotter function is added.

$6 [ENT] key

Selects menu items and enters numerical data.

$7 [CLR] key

Clears the entry of numerical data and the target number in the electronic plot (EPA) and ARPA

(ATA), etc.

$8 ROM ／ RAM card slot

The JRC ／ ERC chart ROM card is inserted here to display the chart.

The RAM card is inserted here to plays back the data stored inside.

$9 [TUNE] key

Turns automatic tuning on and off.

%0 [RAIN CLUTTER] key

Turns auto rain ／ snow reflection restraint on and off.

%1 [SEA CLUTTER] key

Turns auto sea surface reflection restraint on and off.

%2 [Power ON/OFF] switch

Turns the radar on and off.

2

2 – 6

q w

2.1

!6

!5

e r t y u i o

!0

!1

!2

!3

!4

Contents Display (Standard Screen)

2 – 7

2.1

q Range ／ range ring spacing w Standby ／ transmission (TX) display

→

3.1.1

Turning Power on and Starting the System e

Relative motion (RM) ／ true motion (TM) display

→ 3.3.8

Selecting True Motion ／ Relative Motion

Display Modes [TM ／ RM][TM RESET] r

Bearing display

→

3.3.7

Selecting Presentation Mode [BEARING] t

Radar interference rejection → 3.2.9

Rejecting Radar Interference y u

Radar track (Trails)

Alarm display

→ 3.3.10 Displaying Other Ship's Trails [TRAIL]

→ 3.3.13 Using Alarm [ALARM] i

Alarm enter ／ leave display → 3.3.13 Using Alarm [ALARM] o

!0

Cursor fixed display

Pulse width

→ 3.3.1

Using Trackball to Move Cursor "+"

→ 3.3.4

Selecting Pulse Width [PULSE WIDTH]

!1

Tuning indicator

!2

!3

EBL1

VRM1

／

／

2 (bearing)

2 (range)

→ 3.1.2

Tuning

→ 3.3.2

Using EBL (Electronic Cursor) [EBL]

→ 3.3.12 Displaying Variable Range Markers [VRM]

!4

Cursor bearing ／ range from own ship to cursor

→ 3.3.1

Using Trackball to Move Cursor "+"

!5

Own ship course display

!6

Own ship speed and log ／ ground speed

2

2 – 8

q w

2.1

!6

!5

e r t y u i o

!0

!1

!2

!3

!4

Contents Display (Wide Screen)

2 – 9

2.1

q Range ／ range ring spacing w Standby ／ transmission (TX) display

→

3.1.1

Turning Power on and Starting the System e

Relative motion (RM) ／ true motion (TM) display

→ 3.3.8

Selecting True Motion ／ Relative Motion

Display Modes [TM ／ RM][TM RESET] r Bearing display → 3.3.7

Selecting Presentation Mode [BEARING] t

Radar interference rejection → 3.2.9

Rejecting Radar Interference y u

Radar track (Trails)

Alarm display

→ 3.3.10 Displaying Other Ship's Trails [TRAIL]

→ 3.3.13 Using Alarm [ALARM] i

Alarm enter ／ leave display → 3.3.13 Using Alarm [ALARM] o

!0

Cursor fixed display

Pulse width

→ 3.3.1

Using Trackball to Move Cursor "+"

→ 3.3.4

Selecting Pulse Width [PULSE WIDTH]

!1

Tuning indicator

!2

!3

EBL1

VRM1

／

／

2 (bearing)

2 (range)

→ 3.1.2

Tuning

→ 3.3.2

Using EBL (Electronic Cursor) [EBL]

→ 3.3.12 Displaying Variable Range Markers [VRM]

!4

Cursor bearing ／ range from own ship to cursor

→ 3.3.1

Using Trackball to Move Cursor "+"

!5

Own ship course display

!6

Own ship speed and log ／ ground speed

2

2 – 10

2.2

Menu Composition

In addition to functions to be selected using keys on the front panel, this radar has some other functions available on menus. To select these functions, press the numeric keys (

0

to

9

),

CLR

and

ENT

keys.

The menu are composed as follows:

MAIN

MENU

[MAIN MENU]

Pressing this key opens the main menu on the bottom of the screen and pressing again clears it.

SUB

MENU

[SUB MENU]

Pressing this key opens the sub menu on the bottom of the screen and pressing again clears it.

2.2.1 Menu Selection

(1) In order to select each item on the menu, press the numeric key corresponding to it.

(2) In order to change the contents in the item, press the same key used in (1) to select it and press the

ENT

key.

The underlined setting indicates the current one. The display is highlighted when selected. Pressing the

ENT

key confirms the setting.

(3) In order to change the numerical part in the item, press the same key used in (1), enter an appropriate value using the numeric key and press the

ENT

. When numeral value input is enabled, the input part is displayed in a box.

Note

● Press the

CLR

key to clear the input value.

When optional equipment (ARPA, plotter or performance monitor) is not installed, selecting its related menu is invalid.

2 – 11

2.2.2 Menu List

MAIN

MENU

MAIN MENU

1. RADAR ／ TRAIL BRILL

2. RR ／ VRM ／ EBL BRILL

3. ARPA BRILL

4. GRAPHIC DATA BRILL

5. PROCESS

6. IR

7. FLOATING EBL

8. VECTOR

9.

SUB

MENU

OWN

TRACK

SUB MENU

1. RADAR #1 MENU

2. RADAR #2 MENU

3. RADAR #3 MENU

4. RADAR #4 MENU

5. ARPA #1-#2 MENU

6. PLOTTER MENU

7. ARPA TRACK MENU

8.

9. INIT SETTING #1-#4 MENU

OWN TRACK

1. DELETE OWN TRACK

2. OWN TRK MEM INTERVAL

3. OWN TRACK MEMORY

4. TRACK MEM

5. NUM/VECTOR DISPLAY

6. WATER DEPTH MENU

7. WATER TEMP MENU

8. TIDEWAY MENU

9.

ALARM

RADAR ALARM MENU

1. FUNCTION

2. RADAR ALARM MODE

3. RADAR SECTOR ZONE

4. RADAR SENSITIVITY LEVEL

5. AUDIBLE WARING

6. ARPA SECTOR ZONE

7.

8.

9.

VECT

TRACK (FISHING BOAT)

ARPA TRACK

1. TRACK FUNCTION

2. TRACK COLOR

3.

4. TRK DISPLAY

5. TRK MEM INTERVAL

6. CLEAR TRACK COLOR

7. CLEAR TRACK NUMBER

8. CARD 2 TRACK DISP

9.

2 – 12

2.2

2

2.2

SUB

MENU z

RADAR #1

0. PREVIOUS MENU

1. TARGET EXPANSION

2. RADAR VIDEO MENU

3. RADAR TRAILS MENU

4. ZOOM

5.

6.

7. DISPLAY COLOR MENU

8.

9.

SUB

MENU x

RADAR #2

0. PREVIOUS MENU

1. GYRO

2. EBL BEARING

3. PARALLEL INDEX LINE

4.

5. CURSOR MENU

6. STERN FLASH

7. KM ／ NM VRM1

8. KM ／ NM VRM2

9.

SUB

MENU c

RADAR #3

0. PREVIOUS MENU

1. RADAR DISPLAY AREA

2. ECHO POWER

3. EPA MENU

4. XMIT REPETITION FREQUENCY

5.

6.

7.

8.

9. PERFORMANCE MONITOR

2 – 13 x

RADAR VIDEO

0. PREVIOUS MENU

1. VIDEO LATITUDE

2. VIDEO NOISE REJECTION

3. AUTO DR CONT

4. PROCESS SWITCHING

5. PROC SWITCH RANGE

6.

7.

8.

9.

c

RADAR TRAILS

0. PREVIOUS MENU

1. RADAR TRAILS INTERVAL

2. RADAR TRAILS REF LEVEL

3. RADAR TRAILS REDUCTION

4. RADAR TRAILS PROCESS

5. RADAR TRAILS SMOOTHING

6.

7.

8.

9.

m

5.

6.

7.

8.

9.

DISPLAY COLOR

0. PREVIOUS MENU

1. RADAR AREA

2. OUTSIDE OF RADAR AREA

3. TARGET COLOR

4. RADAR TRAILS COLOR b

5.

6.

7.

8.

9.

CURSOR

0. PREVIOUS MENU

1. CURSOR LENGTH

2. FIXED CURSOR

3.

4.

c

EPA

0. PREVIOUS MENU

1. VECTOR TIME

2. PLOT NUMBER

3. LIMITS

4. AUDIBLE WARNING

5. DISPLAY OF CPA RING

6.

7.

8.

9.

2.2

SUB

MENU v

RADAR #4

0. PREVIOUS MENU

1. OWN TRK MEM INTERVAL

2. DELETE OWN TRACK

3. OWN TRACK MEMORY

4. DISP OWN TRACK COLOR

5. CLEAR OWN TRACK COLOR

6. C-MAP MENU

7. JRC ／ ERC CARD MENU

8. CONTOUR OF JRC CARD MENU

9.

n

C-MAP MENU

0. PREVIOUS MENU

1. GRID DISPLAY

2. SOUNDING DISPLAY

3. SOUNDING DEPTH UNIT

7.

8.

9.

4. LIGHT SECTOR DISPLAY

5. LIGHT SECTOR DISPLAY LEVEL

6. FILL LAND ARPA m

4.

5.

6.

7.

8.

9.

JRC ／ ERC CARD

0. PREVIOUS MENU

1. FILL LAND AREA

2. ERC DISP REQUEST

3.

,

CONTOUR OF JRC CARD

0. PREVIOUS MEMU

1. 10M

2. 20M

3. 30M

4. 40M

5. 50M

6. 60M

7. 70M

8. 80M

9. OTHER

SUB

MENU b

ARPA #1

0. PREVIOUS MENU

1. ARPA SYMBOL

TARGET DATA

2. VECTOR TIME

3. PAST POSITION

4. PAST POSITION TIME

5. LIMITS CPA

TCPA

6. AUDIBLE WARNING

CPA ／ TCPA

LOST TARGET

7.

8. DISPLAY OF CPA RING

9. NEXT MENU

SUB

MENU m

ARPA TRACK

0. PREVIOUS MENU

1. TRACK FUNCTION

2. TRACK COLOR

3.

4. TRK DISPLAY

5. TRK MEM INTERVAL

6. CLEAR TRACK COLOR

7. CLEAR TRACK NUMBER

8. CARD 2 TRACK DISP

9.

.

5.

6.

7.

8.

9.

ARPA #2

0. PREVIOUS MENU

1. ARPA TEST MENU

2. SIMULATION

3.

4.

2 – 14 z

ARPA TEST

0. PREVIOUS MENU

1. TEST VIDEO

2. VECTOR CONST

3. VIDEO TD LEVEL

4. VIDEO HIGH LEVEL

5. VIDEO LOW LEVEL

6. GATE SIZE

7. ARPA NOISE LEVEL

8. ARPA FTC LEVEL

9.

2

2.2

SUB

MENU

.

INIT SETTING #1

0. PREVIOUS MENU

1. COURSE EQUIPMENT

2. SPEED EQUIPMENT

3. MANUAL SPEED

4. FUNCTION MENU

5. BUZZER VOLUME

6. DRIFT SET

DRIFT

7. GPS INITIALIZE MENU

8. SETTING DGPS ／ STATUS

9. NEXT MENU v

SET FUNC

0. PREVIOUS MENU

1. FUNCTION 1 SETTING MENU

2. FUNCTION 2 SETTING MENU

3. FUNCTION 3 SETTING MENU

7.

8.

9.

4. FUNCTION 4 SETTING MENU

5.

6.

m

INITIALIZE GPS ／ GPS STATUS

0. PREVIOUS MENU

1. POSITION N

E

2. EXCLUSION SAT

3. GEODETIC

4. ANTENNAHEIGHT

5. FIX MODE

6. DOP LEVEL

7. POSN AVERAGE

8. SEND DATA

9.

m

DIAGNOSTIC MENU

0. PREVIOUS MENU

1. MEMORY TEST

2. KEY SWITCH TEST

3. SENSOR TEST

4. LINE TEST

5. ROM VERSION

6. ARPA STATUS

7. ERROR LOGGING

8.

9.

MAG. I.

RUNNING TIME

TX TIME

,

SETTING DGPS ／ DGPS STATUS

0. PREVIOUS MENU

1. MODE

2. FREQUENCY

3. BAUD RATE (BPS)

4. SET DATA

5. SEND DATA

6.

7.

8.

9.

,

MAINTENANCE MENU

0. PREVIOUS MENU

1. ANTENNA HEIGHT

2. SERIAL INPUT DEVICE

3. ANTENNA SWITCH

4. PARTIAL MASTER RESET

5. ALL MASTER RESET

6. INTERNAL SETTING to CARD 2

7. CARD 2 to INTERNAL SETTING

8. MEMOLIZE USER SETTING

9. RESTORE USER SETTING

.

INIT SETTING #2

0. PREVIOUS MENU

1. BEARING ADJUSTMENT

2. RANGE ADJUSTMENT

3. TUNE ADJUSTMENT

4. SETTING OF PRF

5. PM ADJUSTMENT

6.

7. DIAGNOSTIC MENU

8. MAINTENANCE MENU

9. NEXT MENU

.

INIT SETTING #3

0. PREVIOUS MENU

1. SHIFT COAST LINE #1

2. SHIFT COAST LINE #2

3. LAT ／ LON CORRECTION

4. CHART CENTER POSITION

5. DATA INPUT FORMAT

6. DATA ／ TIME

7. SHIP'S TYPE

8.

9. NEXT MENU

.

5.

6.

7.

8.

9.

INIT SETTING #4

0. PREVIOUS MENU

1. HDG SENSOR CORRECTION

2. CORRECT VALUE

3.

4.

2 – 15

2.2

FUNCTION x SETTING -1

0. PREVIOUS MENU

1. MODE

2. PROCESS

3. IR

4. AUTO STC/FTC

5. TGT EXPANSION

6.

7.

8. SAVE PRESENT STATE

9. NEXT MENU

.

FUNCTION x SETTING -2

0. PREVIOUS MENU

1. PULSE WIDTH 0.75NM

2. PULSE WIDTH 1.5NM

3. PULSE WIDTH 3NM

4. PULSE WIDTH 6NM

5. PULSE WIDTH 12NM

6. PULSE WIDTH 16NM

7.

8.

9. NEXT MENU

.

FUNCTION x SETTING -4

0. PREVIOUS MENU

1. RADAR TRAILS INTERVAL

2. RADAR TRAILS REF LEVEL

3. RADAR TRAILS REDUCTION

4. RADAR TRAILS PROCESS

5. RADAR TRAILS SMOOTHING

6.

7.

8.

9. NEXT MENU

.

FUNCTION x SETTING -5

0. PREVIOUS MENU

1. PROCESS SWITCHING

2. PROC SWITCH RANGE

3.

4.

5.

6. INITIALIZE

7.

8.

9.

.

FUNCTION x SETTING -3

0. PREVIOUS MENU

1. VIDEO LATITUDE

2. VIDEO NOISE REJECTION

3. GAIN OFFSET

4. XMIT REPETITION FREQUENCY

5. SMALL BUOY DETECTION

6. FISHING NET DETECTION

7. AUTO DR CONT

8.

9. NEXT MENU

2

2 – 16

2.2

SUB

MENU n

PLOTTER

0. PREVIOUS MENU

1. WPT ／ ROUTE #1 MENU

2. WPT ／ ROUTE #2 MENU

3. DISP ／ DEL OF TRK ／ MARK

COLOR MENU

4. CLEAR MEMORY ／ INIT

CARD MENU

5. MEM CAPACITY ／ COPY

MEM MENU

6.

7.

8.

9. PLOTTER SETTING MENU z

WPT ／ ROUTE #1

0. PREVIOUS MENU

1. WAYPOINT ALARM

2. ROUTE ALARM

3. SETTING OF ROUTE

SEQUENCE

4. SELECT SCHEDULED ROUTE

5.

6. WAYPOINT ENTRY

7. WAYPOINT INPUT

8.

9.

x

5.

6.

7.

8.

9.

WPT ／ ROUTE #2

0. PREVIOUS MENU

1. ROUTE SEQUENCE

2. WPT SWITCH MODE

3. WPT SKIP ／ BACK SKIP MENU

4. SETTING WPT ／

CANCELLATION WPT c

DISPLAY ／ DELETE OF TRACK ／

MARK IN DISTINCTION COLOR

0. PREVIOUS MENU

1. DISP OWN TRK COLOR

2. DISP MARK COLOR ／ TYPE

3. CLEAR OWN TRK COLOR

4. CLEAR MARK COLOR ／ TYPE

5.

6.

7.

8.

9.

v

5.

6.

7.

8.

9.

CLEAR MEMORY ／ INITIALIZE

CARD

0. PREVIOUS MENU

1. CLEAR MARK ／ LINE DATA

2. CLEAR WPT ／ ROUTE DATA

3. FORMAT CARD 2

4.

b

MEMORY CAPACITY ／ COPY

MEMORY

0. PREVIOUS MENU

1. MEM CAPACITY

2. COPY INSIDE -> CARD2

3. COPY CARD2 -> INSIDE

4. COPY CARD1 -> CARD2

5. CLEAR FILE -> CARD2

6. CARD 2 OWN TRACK DISP

7. CARD 2 MARK DISP

8. SHOW CARD 1

9. SHOW CARD 2

.

PLOTTER SETTING

0. PREVIOUS MENU

1. SCALE

2. PRESET SCALE (JRC ／ ERC

CHART only)

5.

6.

7.

8.

9.

3. VECTOR ／ NUMBER DISPLAY

MENU

4.

c

WPT SKIP ／ BACK SKIP MENU

0. PREVIOUS MENU

1. WPT SKIP

2. WPT BACK SKIP c

VECTOR ／ NUMBER DISPLAY

0. PREVIOUS MENU

1. SELECT LINE

2. OWN VECTOR LENGTH

3. WPT VECTOR

4. WPT ／ ROUTE DISPLAY

5. WPT NUMBER DISPLAY

6. RTE NUMBER DISPLAY

7. STATUS OF ORG ／ DEST

8. SCALEBAR DISPLAY

9.

2 – 17

3

BASIC

OPERATION

3.1

Flow of Operation ················································3-1

3.2

Preparation ···························································3-5

3.3

Basic Operation ·················································3-14

3.4

Using Function Key [FUNC]······························3-56

3.5

Displaying the Chart ··········································3-70

3.6

Displaying Own Ship Track ······························3-77

3.1

Flow of Operation

Turning power on and starting the system

Tuning

Observation and video adjustment

Data acquisition and measurement

Ending operation and stopping the system

Basic operation is explained on the following pages.

3 – 1

3.1

3.1.1 Turning Power on and Starting the System

Procedures 1. Check that the ship's power is supplied to the system.

2. Press the power switch to turn the power on.

POWER

ON/OFF

The warm-up timer appears on the screen.

3. Press

TX

ST-BY

.

Radar transmission starts and the scanner unit starts rotating.

"STBY" on the upper left of the screen changes to "TX".

Pressing the

TX

ST-BY

key before "STBY" is displayed does not enable radar transmission.

ATTENTION

Immediately after radar installation, after replacement of the magnetron or if the system has not been operated for a long time, set the system to the standby mode and leave it as it is for 20 to 30 minutes before setting it to the transmit mode.

Insufficient warming-up may cause sparks inside the magnetron and may make its oscillation unstable.

Start the transmitting mode with the short-pulse range and then go on to the long-pulse range. If the oscillation becomes unstable during the period, immediately reset the system to the standby mode, leave it as it is for 5 to 10 minutes and restart the system. Repeat this until the system comes to oscillate stably.

3

3 – 2

3.1

3.1.2 Tuning

Procedures 1. Press the

RANGE

or

RANGE

key to select any range between 6 and 120 nautical miles.

Press the left

RANGE

key to decrease the range.

Press the right

RANGE

key to increase the range.

TUNE

2. Turn the control.

Adjust the video for best presentation.

If radar display doesn't show a weak target, adjust the control until the turning bar on the lower left of the screen indicates the maximum.

To use Auto Tuning mode

TUNE

Procedures 1. Press the control.

Select auto tuning mode, "AUTO" appears on the right of the tuning bar.

TUNE

Exit 2. Press the control again.

"AUTO" disapears on the right of the tuning bar, changes to manual mode.

3.1.3 Observation and Video Adjustment

Procedures 1. Press the

RANGE

or

RANGE

key to select the range appropriate for observation.

GAIN

BRILL

2. Turn the and controls so that the target is displayed most clearly.

3 – 3

3.1

3.1.4 Data Acquisition and Measurement

For details, see section “3.3 Basic Operation” and chapter “4 Measurement”.

3.1.5 Ending Operation and Stopping the System

To stop transmission

Procedures Press the

TX

ST-BY

key.

This stops radar transmission and scanner unit rotation. "TX" on the upper left of the screen changes to "STBY".

Keep the system in the standby mode if it is expected to be reset to the transmit mode soon. This enables the user to select the transmit mode again simply by pressing the

TX

ST-BY

key.

To turn off

Procedures Press the

POWER

ON/OFF

switch to turn the system off.

This stops the power to be supplied to the system.

3

3 – 4

3.2

Preparation

3.2.1 Tuning [TUNE]

TUNE

This control is used to tune the receiver.

When the tuning does not match, the receiving sensitivity decreases and the operator may miss weak or distant targets.

For manual tuning, adjust the TUNE control so that the target is displayed most clearly. If radar display doesn't show radar return, adjust the control until the tuning bar on the lower left of the screen indicates its maximum right.

Since it takes about ten minutes for the oscillation frequency of the magnetron to stabilize after the transmit mode has been set, adjust the control again 10 minutes later.

3.2.2 Adjusting Sensitivity [GAIN]

GAIN

This control is used to adjust the receiving sensitivity of the radar. Turning it clockwise increases the sensitivity and expands the radar picture observation range. Excessive gain, however, increases receiver noises on the screen and could make target detection more difficult.

When sighting targets densely located on the screen or targets near the own ship, turn the knob counterclockwise to reduce the sensitivity. If gain is set too low, weak or distant targets could be missed.

3.2.3 Adjusting CRT Brilliance [BRILL]

BRILL

This control is used to adjust the brilliance of the total screen. Turning it clockwise increases the brilliance.

Adjust it to the best condition for you.

3 – 5

3.2

3.2.4 Suppressing Sea Clutter [SEA CLUTTER]

SEA CLUTTER

This control is used to suppress sea clutter. Although turning it clockwise increases the suppressing effect, excessive suppressing could miss weak target at short range.

To use Auto Suppressing Sea Clutter mode

SEA CLUTTER

Procedures 1. Adjust the

SEA CLUTTER

so that the target is displayed most clearly.

2. Press the control.

Select auto suppressing sea clutter mode, then "STC AUTO" appears on upper right of the screen. Turn the control again when the target is not displayed most clearly.

SEA CLUTTER

Exit 3. Press the control again.

"STC AUTO" disappears on the upper right of the screen, changes to manual mode.

Note

● Auto suppressing sea clutter mode can not select with auto suppressing rain and snow clutter mode.

3

3 – 6

3.2

3.2.5 Suppressing Rain and Snow Clutter [RAIN CLUTTER]

RAIN CLUTTER

This control is used to suppress rain/snow clutter. Although turning it clockwise enables contours of targets obscured by rain/snow clutter to be seen, excessive suppressing could miss weak targets. It is more effective for suppressing sea clutter to use this control together with the [SEA CLUTTER] control.

Keep the knob at its leftist position for normal operation.

To use Auto Suppressing Rain and Snow Clutter mode

RAIN CLUTTER

Procedures 1. Press the control.

Select auto suppressing rain and snow clutter mode, and "FTC AUTO" appears on the upper right of the screen.

RAIN CLUTTER

Turn the control when the target is not displayed most clearly.

RAIN CLUTTER

Exit 2. Press the control again.

"FTC AUTO" disappears on the upper right of the screen, and changes to manual mode.

Note

● Auto suppressing rain and snow clutter mode can not select with auto suppressing sea clutter mode.

3 – 7

3.2

3.2.6 Adjusting Brilliance

Procedures 1. Press the

MAIN

MENU

key to open the main menu.

Brilliance increases in the four levels as shown below every time each setting key for adjusting brilliance is pressed and pressing it again returns the system to the original status.

z

[RADAR ／ TRACK BRILL]: Adjusts brilliance of radar video.

x

[RR ／ VRM ／ EBL BRILL]: Adjusts brilliance of the fixed range scale, variable range scales (VRMs1 and 2) and electronic cursors (EBLs1 and 2).

c

[ARPA BRILL]: Adjusts brilliance of the ARPA symbol vector when the optional ARPA is added.

It is used to adjust brilliance of the symbol vector of the electronic plot

(EPA) when the ARPA is not added.

v

[GRAPHIC DATA BRILL]: Adjusts brilliance of the letters outside the fixed bearing range of the cursor inside the fixed bearing range, of SHM, of the mark, line of the own ship track, of the other ship track, and of the coast line.

Note

● The red and white marks, lines, and tracks change by "3. ARPA BRILL".

By brilliance adjustment of radar videos, only the gamma correction value changes and the maximum brilliance remains unchanged. (The radar signal brilliance of a strong level remains unchanged and the radar signal brilliance of a weak level changes.)

Main menu

MAIN MENU

Press an item number key.

1. RADAR ／ TRACK BRILL

2. RR ／ VRM ／ EBL BRILL

3. ARPA BRILL

4. GRAPHIC DATA BRILL

5. PROCESS

6. IR

7. FLOATING EBL

8. VECTOR

9.

To close this menu, Press (MAIN MENU) key.

●

●

●

●

OFF

OFF

OFF

TRUE

[DAY1]

[DAY1]

[DAY1]

[DAY1]

PROC1

IR1

ON

RELATIVE

PROC2

IR2

PROC3

IR3

Brilliance, once adjusted, is stored depending on the selected day/night mode (refer to subsection “3.2.7

Selecting DAY ／ NIGHT Modes [DAY ／ NIGHT]”.)

Exit 2. Press the

MAIN

MENU

key.

3 – 8

3

3.2

3.2.7 Selecting DAY

／

NIGHT Modes [DAY

／

NIGHT]

Procedures Press the

DAY

NIGHT

key.

DAY

NIGHT

Pressing this key changes the mode from "DAY1" to "DAY2",

"NIGHT1" to "NIGHT2" in this order.

DAY

NIGHT

DAY

NIGHT

DAY

NIGHT

The brilliance set at the time of selecting each mode is stored. For adjusting brilliance, refer to subsection

“3.2.6 Adjusting Brilliance”.

3 – 9

3.2

3.2.8 Setting Color

This control is used to set the background colors of inside and outside the bearing scale as well as radar and trail video colors in each mode (four modes of DAY1, 2 and NIGHT1 and 2).

The following colors can be set.

Element

BACKGROUND COLOR

Colors that can be set

Black, Blue

(within PPI)

BACKGROUND COLOR

Black, Sky blue

(outside of PPI)

TARGET COLOR Yellow, Green, Orange, Color (Red, Yellow, Green)

RADAR TRAILS COLOR Sky blue, White, Green

Screen display colors can be set and stored independently in each screen color arrangement mode.

Recommended setting

Reduce the brilliance other than radar videos during nighttime to reduce glare.

Brilliance of

Daytime setting

Maximum brilliance of

Nighttime setting

Reduce the brilliance of each element each element (radar video = 2) graphic and distance marker.

Background color Black or Blue (optional) Black

Radar video Yellow, Color Green, Orange

3

3 – 10

3.2

3.2.8.1 Background Color

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 1 key to open the RADAR #1 menu.

3. Press the

7

key to open the DISPLAY COLOR menu.

4. Press the 1 key to select the background color inside the bearing scale. (Radar area)

Two colors, including black, are available.

Press the 1 key to select the color for DAY1 and press the ENT key.

Press the 1 key again to select the color for DAY2 and press the ENT key.

Select the colors for NIGHT1 and 2 in the same way.

5. Press the 2 key to select the background color outside the bearing scale.

Two colors, including black, are available.

Press the 2 key to select the color for DAY1 and press the ENT key.

Press the 2 key again to select the color for DAY2 and press the ENT key.

Select the colors for NIGHT1 and 2 in the same way.

6. Press the

SUB

MENU

key.

Display color

DIAPLAY COLOR

Press an item number key.

1. RADAR AREA

2. OUTSIDE OF RADAR AREA DAY1:

DAY2:

NIGHT1:

NIGHT2:

3. TARGET COLOR

DAY1:

DAY2:

NIGIHT1:

NIGIHT2:

DAY1:

DAY2:

NIGIHT1:

NIGIHT2:

4. RADAR TRAILS COLOR DAY1:

DAY2:

NIGHT1:

NIGHT2:

To close this menu, Press (SUB MENU) key.

YEL

YEL

YEL

YEL

SKY

SKY

SKY

SKY

BLK

BLK

BLK

BLK

BLK

BLK

BLK

BLK

3 – 11

GRN

GRN

GRN

GRN

WHT

WHT

WHT

WHT

BLU

BLU

BLU

BLU

SKY

SKY

SKY

SKY

ORN

ORN

ORN

ORN

GRN

GRN

GRN

GRN

COLOR

COLOR

COLOR

COLOR

3.2

3.2.8.2 Setting Radar Video and Trail Color

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 1 key to open the RADAR #1 menu.

Exit

3. Press the 7 key to open the DISPLAY COLOR menu.

4. Press the 3 key to select "TARGET COLOR".

Four colors (yellow, green, orange and multi-color) are available.

Press the

3

key to select the color for DAY1 and press the

ENT

key.

Press the 3 key again to select the color for DAY2 and press the ENT key.

Select the colors for NIGHT1 and NIGHT2 in the same way.

5. Press the 4 key to select "RADAR TRAILS COLOR".

Three colors (sky, white and green) are available.

Press the 4 key to select the color for DAY1 and press the ENT key.

Press the 4 key again to select the color for DAY2 and press the ENT key.

Select the colors for NIGHT1 and NIGHT2 in the same way.

5. Press the

SUB

MENU

key.

3

3 – 12

3.2

3.2.9 Rejecting Radar Interference

Attention

●

 

If you'll watch the RADAR BECON and the SAFT, set the process as follows.

IR OFF

Procedures 1. Press the

MAIN

MENU

key to open the MAIN MENU.

2. Press the 6 key to select "IR".

Exit

3. Press the 6 key to select "OFF", "IR1", "IR2" or "IR3" according to the radar interference status.

"IR1", "IR2" or "IR3" then appears on the upper right of the screen to display the interference rejection circuit operation. "IR3" is most effective for the radar interference.

4. Press the ENT key.

5. Press the

MAIN

MENU

key.

Main menu

MAIN MENU

Press an item number key.

1. RADAR ／ TRACK BRILL

2. RR ／ VRM ／ EBL BRILL

3. ARPA BRILL

4. GRAPHIC DATA BRILL

5. PROCESS

6. IR

7. FLOATING EBL

8. VECTOR

9.

To close this menu, Press (MAIN MENU) key.

●

●

●

●

OFF

OFF

OFF

TRUE

[DAY1]

[DAY1]

[DAY1]

[DAY1]

PROC1

IR1

ON

RELATIVE

PROC2

IR2

PROC3

IR3

3.2.10

Adjusting Control Panel Brilliance [PANEL DIM]

Procedures Brilliance increases in the four levels every time the

PANEL

DIM

key is pressed and pressing it again returns the system to the original status.

3 – 13

3.3

Basic Operation

Attention

●

 

If you'll watch the RADAR BECON and the SART, set the process as follows.

IR OFF

PROCESS OFF

3.3.1 Using Trackball to Move Cursor "+"

The cursor mark "+" is often used to designate positions in various operations. The cursor mark is interlocked with motions of the trackball. When the trackball is turned vertically and horizontally, the cursor mark also movers vertically and horizontally. The cursor readouts at the lower left of the screen read the distance and the bearing of the cursor.

The operator is recommended to get accustomed to designate positions by using the trackball before operation.

Note

When the mode of fixed cursor is selected, the cursor is fixed in the direction of the axis selected on the menu. (See subsection “3.3.17 Setting Cross Cursor Length and Fixing Cursor Position”.)

3.3.2 Using EBL (Electronic Cursor) [EBL]

The EBL (Electronic Cursor) is absolutely necessary to measure distance and bearing.

The operator is recommended to get accustomed to move the cursor before operation.

EBL OFF

3

3 – 14

3.3

Procedures

Displaying EBL

The EBL currently selected is displayed in a box on the lower left of the screen.

EBL

Pressing the [EBL] key once displays (selects) EBL1.

Pressing it again displays (selects) EBL2.

EBL

Clearing EBL

OFF Pressing the [OFF] switch once clears the EBL outside a box on the lower left of the screen.

OFF

Pressing it again clears the other EBL.

Display of Bearing readout of EBL

◎ Bearing readouts of EBL1 and EBL2 currently shown on the radar display are displayed on the lower left of the screen.

Also, EBL1 or EBL2 currently activated is displayed in a box on the lower left of the screen.

Motion of EBL

◎ EBL1

• EBL1 is displayed as a line originating from own ship to outer edge of radar display.

• EBL1 rotates in the same direction as the EBL control.

◎ EBL2

• EBL2 is displayed as a line originating from own ship to outer edge of radar display.

• EBL2 rotates in the same direction as the EBL control.

<When EBL2 is used in the floating EBL mode>

EBL2 can be used as a floating EBL.

– Motion of Floating EBL –

• EBL2 is displayed as a line originating from the cursor mark "+" as it moves.

• The originating point moves in the same direction as the trackball.

• EBL2 rotates in the same direction as the EBL control.

• VRM2 on the EBL2 is displayed as a circle.

When EBL2 is changed to the parallel index line, VRM2 is not displayed.

Procedures 1. Press the

MAIN

MENU

key to open the MAIN MENU.

2. Press the 7 key to select "FLOATING EBL".

Exit

3. Press the 7 key to select "OFF" or "ON".

4. Press the ENT key.

5. Press the

MAIN

MENU

key.

3 – 15

3.3

Setting EBL Display

Select EBL true and relative bearing display.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 2 key to open the RADAR #2 menu.

Exit

3. Press the 2 key to select "EBL BEARING".

4. Press the 2 key to select "TRUE" or "RELATIVE" and press the

ENT key.

Selecting "RELATIVE" displays "R" and selecting "TRUE" displays "T" in the EBL bearing column on the lower left of the screen.

5. Press the

SUB

MENU

key.

Radar #2

RADAR #2

Press an item number key.

0. PREVIOUS MANU

1. GYRO

2. EBL BEARING

3. PARALLEL INDEX LINE

4.

5. CURSOR MENU

6. STERN FLASH

7. KM ／ NM VRM1

8. KM ／ NM VRM2

9.

0.0

OFF

KM

KM

°

TRUE

OFF

To close this menu, Press (SUB MENU) key.

RELATIVE

ON

ON

NM

NM

3

3 – 16

3.3

3.3.3 Selecting Range Scales [RANGE]

RANGE RANGE

Range scale (nm)

12

2

Fixed range ring spacing (nm)

The operator can select various range scale among 0.125, 0.25, 0.5, 0.75, 1.5, 3, 6, 12, 16, 24, 32, 48, 96 and

120 (nm). Press the

RANGE

key to decrease the range or the

RANGE

key to increase it. The current range in use and the range ring spacing are seen in the upper left of the screen.

3.3.4 Selecting Pulse Width [PULSE WIDTH]

PULSE

WIDTH

The operator can select three pulse widths ( SP (short pulse), MP (medium pulse) and

LP (long pulse) by pressing the

PULSE

WIDTH

key when the range scale is any of 0.75, 1.5, 3, 6, 12 and 16nm. The current pulse width is displayed like " MP" on the lower left of the screen. Using the short range increases target resolution and decreases clutter returns. Using the long pulse increases target reception and decreases clutter returns although target resolution also decreases.

3.3.5 Disabling Ship's Head Marker [SHM]

SHM

The ship's head marker (SHM) showing the course of the own ship is always displayed on the screen. While the

SHM

key is pressed, the SHM disappears and targets in the direction of the bow can be observed easily.

In the course-up display mode, pressing this switch returns the ship's head marker (SHM) to the top of the screen.

◎ When the ship's stern marker (dotted line) is displayed on the screen, the marker also disappears while this key is pressed.

3 – 17

3.3

3.3.6 Using Parallel Index Line

The parallel index line is displayed in half area of radar display.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 2 key to open the RADAR #2 menu.

3. Press the 3 key to select "PARALLEL INDEX LINE".

Exit

4. Press the 3 key to select "ON" and press the ENT key.

The parallel lines appear on the screen (EBL2 changes to them).

5. Press the

SUB

MENU

key.

Cancellation Press the 3 key in "PARALLEL INDEX LINE" (procedure 4) to select

"OFF" and press the ENT key.

The parallel lines disappear and change to EBL2.

Radar #2

RADAR #2

Press an item number key.

0. PREVIOUS MANU

1. GYRO

2. EBL BEARING

3. PARALLEL INDEX LINE

4.

5. CURSOR MENU

6. STERN FLASH

7. KM ／ NM VRM1

8. KM ／ NM VRM2

9.

0.0

OFF

KM

KM

°

TRUE

OFF

To close this menu, Press (SUB MENU) key.

RELATIVE

ON

ON

NM

NM

3

3 – 18

3.3

Motion of Parallel Index Line

◎ The parallel index line rotate in the same direction as the EBL control ( q and w ).

◎ The parallel index line interval can be changed by rotating the VRM control ( e and r ).

◎ The angle of the parallel index line is displayed in the EBL2 box on the lower left of the screen.

◎ The interval of the parallel index line is displayed in the VRM2 box on the lower left of the screen.

Display of parallel index line

➂

➀

➀ EBL ➁

➁

➃

➂ VRM ➃

<Changing parallel index line interval>

◎ The bearing and interval of the parallel index line can be changed in the operation mode of EBL2 or

VRM2 respectively.

3 – 19

3.3

3.3.7 Selecting Presentation Mode [BEARING]

This control switches presentation mode from [Head Up] to [Course Up], [North up] to [Stabilized Course

Up] every time the switch is pressed.

The current presentation mode is displayed as "HUP", "CUP", "NUP" or "SCUP" on the upper right of the screen.

The presentation mode that can be used vary according to the motion mode.

See subsection “3.3.8 Selecting True Motion ／ Rative Motion Display Modes [TM ／RM ] [TM RESET]”.

"HEAD UP"

The ship's head marker (SHM) is always pointed vertically to the top center of the radar display (0 degree on the bearing scale). Since targets are displayed in the directions relative to the bow, the operator can sight them on the radar display in the direction he really sees them.

When the own ship traverses, the surrounding targets are rotated at each scan.

"COURSE UP"

Selecting "COURSE UP" places the ship's head marker line (SHM) on 0 degree on the bearing scale. As in the case of the NORTH UP, stationary targets remain stable on the radar display and the bearing of the SHM changes as the own ship changes its course. After the own ship course is changed, the new course can be updated by pressing the switch three more times to select the COURSE UP display or pressing the

SHM key.

Surrounding targets will not ratate according to the traversing of the own ship.

"NORTH UP"

North is always at the top of the screen (0 degree on the bearing scale). The merits of this presentation mode are as follows: Stationary targets remain stable and can be easily found on the chart, and their true bearings can be read immediately.

Surrounding targets will not ratate according to the traversing of the own ship.

"STABILIZED COURSE UP"

The ship's head marker (SHM) is always fixed at the top of the screen (0 degree on the bearing scale) by resetting it every rotation. During video processing, the fixed target is displayed stably and unnecessary targets such as sea clutters decrease. This display is available only in the radar mode.

Surrounding targets will not ratate according to the traversing of the own ship.

North SHM

North

SHM SHM

SHM

3

North-up display Head-up display

3 – 20

Course-up display Stabilized course-up display

3.3

3.3.8 Selecting True Motion

／

Relative Motion Display Modes

[TM

／

RM] [TM RESET]

Outline of the Motion Mode

• The "Motion mode" determines in which motion of relative motion or true motion the moving of the own ship and other targets are displayed.

• In "Motion mode", the mode is switched sequentially by pressing the

TM

RM

key.

• In TM/CTM mode, a composite display with plotter is possible, however, in RM/SRM, composite display is not allowed.

RM : Relative motion. The own ship is fixed on the center and other targets are displayed in relative motion.

SRM

A radar trail is relative motion display.

Video processing is performed in relative motion mode. (Video processing cannot be used when H-UP is selected.)

: Stabilized relative motion. The own ship is fixed on the center and other targets are

TM

CTM displayed in relative motion.

A radar trail is relative motion display.

Video processing is performed in true motion mode.

: True motion. The own ship and other targets are displayed in true motion mode on the globe fixed screen.

Video processing is performed in true motion mode.

: True Motion with Constant Own Ship Position. The own ship is fixed on the center and other targets are displayed in relative motion mode.

A radar trail is true motion display.

Video processing is performed in true motion mode.

Note

●

For further information about video processing, see subsection “3.3.20 Displaying Video Processing Screen”.

<Display of True Motion (TM)>

The position of the own ship moves with true speed and course across the radar display area. Land masses and other stationary targets do not move and only targets in motion move with true speed and course. When this mode is selected, the own ship position will be offset to a position of about 65% of the radar display area in the opposite direction of the course. The own ship will start moving from the position in accordance with its speed and course. When the own ship arrives at a position of about 65% of the radar display radius on the opposite side, the own ship will automatically be set to the position where it was when the true motion display mode was selected.

Note

●

True motion is not activated in the 96 and 120nm ranges.

SHM

Fixed on the screen

Moves as the own ship moves.

True Motion Display (TM Display)

3 – 21

3.3

To reset own ship position in the true motion display (TM) mode

Press the

TM

RESET

key.

The own ship is reset to the position where it was when the true motion mode was selected and will start moving from the position.

Combinations of Presentation Mode and Motion Mode

• The presentation modes that can be used vary according to the motion mode.

RM

SRM

H-UP

○

○

N-UP

○

○

TM × ○

CTM × ○

Note

● In H-UP of RM, video processing cannot be used.

C-UP

○

○

○

○

SC-UP

×

×

×

○

Differences Between RM and SRM

• The SRM mode was developed by improving the conventional RM mode to be able to perform accurate video processing.

• When H-UP video processing is performed in the conventional RM mode, videos of other ships may disappear. Since, in SRM mode, video processing is performed by true motion, accurate video processing is performed and problems in the conventional mode do not occur.

Own ship display

Other ships display

Video processing

Radar trail

RM

Fixed at the center

Off center Maximum 66%

Plotter composite display Not possible

SRM

Fixed at the center

Relative motion display Relative motion display

Relative motion True motion

Relative motion display Relative motion display

Not possible

Not possible

Differences Between TM and CTM

• The CTM modes displays images in TM mode by constantly fixing the own ship at the center.

• Both the CTM and TM modes allow composite display with a plotter.

Own ship display

Other ships display

Video processing

TM

True motion

True motion display

True motion

Radar trail

Off center

True motion display

Maximum 66%

Plotter composite display Possible

CTM

Fixed at the center

Relative motion display

True motion

True motion display

Not possible

Possible

3

3 – 22

3.3

3.3.9 Changing Own Ship Display Position [OFF CENT]

The

OFF

CENT

key is used to offset own ship in any direction up to 65% of the radar display radius. This function is convenient when watching a direction in a wide range.

This function cannot be used in the range scale of 96 and 120nm.

Procedures 1. Move the cross cursor mark (own ship display position) to a desired position using the trackball (it cannot be moved beyond about 65% of the radar display radius from the center).

2. Press the

OFF

CENT

key.

3. The own ship position moves to the cross cursor mark and is fixed there.

SHM

SHM

Press the

OFF

CENT key.

Cancellation Keep pressing the

OFF

CENT

key for a while.

The own ship returns to the center of the radar display area.

3.3.10

Displaying Other Ship's Trails [TRAIL]

Movements and speeds of other ships can be checked from lengths and directions of their trails as well as synthetic afterglow, which helps avoid collisions of ships. Trail length can be changed over to eight levels of 1min, 3min, 6min, 12min, 15min, 30min, 60min and continuous.

Procedures 1. Press the TRAIL key to display the radar trail.

The trail length currently set appears on the upper right of the screen.

Exit 2. Press the TRAIL key.

3 – 23

3.3

To Change Radar Trail Interval

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 1 key to open the RADAR #1 menu.

Exit

3. Press the 3 key to open the RADAR TRAILS menu.

4. Press the 1 key to select "RADAR TRAILS INTERVAL".

5. Press the 1 key to select the trail interval and press the ENT key.

6. Press the

SUB

MENU

key.

RADAR TRAILS

RADAR TRAILS

Press an item number key.

0. PREVIOUS MENU

1. RADAR TRAILS INTERVAL

6.

7.

8.

9.

2. RADAR TRAILS REF LEVEL

3. RADAR TRAILS REDUCTION

4. RADAR TRAILS PROCESS

5. RADAR TRAILS SMOOTHING

To close this menu, Press (SUB MENU) key.

1MIN

15MIN

3MIN

30MIN

LEVEL1 LEVEL2

OFF LEVEL1

OFF

OFF

ON

ON

6MIN 10MIN

60MIN CONT

LEVEL3 LEVEL4

LEVEL2 LEVEL3

SHM

3

Other ship

Trail

3 – 24

3.3

Motion of Radar Trail

◎ When the radar trail display is turned off, the memory for the trail which has been displayed is cleared.

◎ The radar trail memory is also cleared when the TM mode is automatically or manually reset, the range is switched, or the off-center function is used.

◎ In the stabilized course-up display (SCUP) mode, the radar trail interval "CONT" functions as "12MIN".

Displaying thin or plain radar trails

The items from “2. RADAR TRAILS REF LEVEL” to “5. RADAR TRAILS SMOOTHING” are used to display the thin or plain radar trails.

See the clauses [Page 4] in the section “3.4 Using Function Key [FUNC]”.

3.3.11

Displaying Fixed Range Ring [RANGE RINGS]

This key is used to display fixed range rings. The brilliance of range rings can be charged by subsection

“3.2.6 Adjusting Brilliance”.

Procedures Press the

RANGE

RINGS

key.

A fixed range ring appears on the screen. The interval between rings is displayed on the upper left of the screen.

Cancellation Press the

RANGE

RINGS

key again.

The display of the fixed range ring is canceled.

3.3.12

Displaying Variable Range Markers [VRM]

The button is used to display and set variable range markers. Variable range markers are divided into two types: variable range marker 1 which is displayed as a ring made up of long dashes and variable range marker 2 which is displayed as a ring made up of short dashed on dotted line. When EBL2 is displayed,

VRM marks are also displayed on the EBL2.

VRM2

VRM OFF

EBL2 VRM1

EBL1

3 – 25

3.3

When EBL2 is used in the floating mode

EBL2

VRM1

EBL1

VRM2

Displaying VRM

VRM

The VRM currently selected is displayed in a box on the lower left of the screen.

Pressing the [VRM] key once displays (selects) VRM1.

Pressing it again displays (selects) VRM2.

VRM

Clearing VRM

OFF Pressing the [OFF] switch once clears the VRM outside a box on the lower left of the screen.

Pressing it again clears the other VRM.

OFF

Bearing Display of VRM

◎ The numerical bearings of VRM1 and VRM2 currently displayed on the PPI is displayed on the lower left of the screen. Also, VRM1 or VRM2 currently activated is displayed in a box above the range data.

Motion of VRM

◎ Variable range markers are displayed around the own ship. Turn the VRM control clockwise to increase the scale or counterclockwise to decrease it.

3

3 – 26

3.3

3.3.13

Using Alarm [ALARM]

Guard zones can be set in order to watch out entries of other ships or targets into the guard zones.

To set radar alarm function

Specify whether to use the function for outputting an alarm using the set guard zone or not.

Procedures 1. Press the ALARM key to open RADAR ALARM MENU.

2. Press the 1 key to select "FUNCTION".

Exit

3. Press the 1 key to select "OFF" or "RADAR ALARM".

4. Press the ENT key to confirm the setting.

5. Press the ALARM key.

Radar alarm menu

RADAR ALARM MENU

Press an item number key.

7.

8.

9.

1. FUNCTION

2. RADAR ALARM MODE

3. RADAR SECTOR ZONE

4. RADAR SENSITIVITY LEVEL

5. AUDIBLE WARNING

RADAR ALARM

ARPA ALARM

6. ARPA SECTOR ZONE

(AUTO ACQ)

To close this menu, Press (ALARM) key.

OFF

IN

1 2

RADAR ALARM

OUT

3 4

OFF

OFF

ON

ON

ARPA ALARM

3 – 27

3.3

To set the radar alarm zone

Procedures 1. Press the ALARM key to open RADAR ALARM MENU.

2. Press the 3 key to select "RADAR SECTOR ZONE".

3. Pressing the ENT key clears the menu and displays the radar screen.

4. Turn the EBL and VRM controls to set the radar alarm range and press the ENT key.

Use ELB1 to set the originating point of the angle, EBL2 to set the end point of the

●

● angle or VRM1 to set the range.

Note

The width of the radar alarm range is fixed.

Do not use the floating EBL for EBL2 being set.

Motion for radar alarm set zone

◎ There are two modes, namely, "IN" mode in which an alarm goes off when a target enters the set circular radar alarm zone and "OUT" mode in which an alarm goes off when a target goes out of the zone.

◎ The radar alarm set zone is displayed only in the radar transmission mode. Note that it is not displayed in the standby mode.

To set the alarm mode

Specify whether to output an alarm when a target enters or goes out of the radar alarm set zone.

Procedures 1. Press the ALARM key to open RADAR ALARM MENU.

2. Press the 2 key to select "RADAR ALARM MODE".

Exit

3. Press the 2 key to select "IN" or "OUT".

4. Press the ENT key to confirm the setting.

5. Press the ALARM key.

3

3 – 28

3.3

To set the alarm sound

Specify whether to output alarm sound in case of an alarm or not.

Procedures 1. Press the ALARM key to open RADAR ALARM MENU.

2. Press the 5 key to select "AUDIBLE WARNING".

Exit

3. Press the 5 key to select RADAR ALARM "OFF" or "ON".

4. Press the ENT key to confirm the setting.

5. Press the ALARM key.

To set the alarm detection level

Set the signal level for outputting an alarm.

Procedures 1. Press the ALARM key to open RADAR ALARM MENU.

2. Press the 4 key to select "RADAR SENSITIVITY LEVEL".

Exit

3. Press the 4 key to select the level between "1" and "4".

4. Press the ENT key to confirm the setting.

5. Press the ALARM key.

3.3.14

Resetting Alarm [ACK]

This function is used to stop alarm sound when an alarm sound occurs.

To stop alarm sound

Procedures Press the

ACK

switch to stop alarm sound.

3 – 29

3.3.15

Setting Alarm Sound Level

Alarm sound levels are set as follows:

To set alarm sound level

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key to open the INIT SETTING #1 menu.

3. Press the 5 key to select "BUZZER VOLUME".

Exit

4. Press the 5 key to select "OFF", "LOW", "MIDDLE" or "HIGH".

Alarm volume can be set in 3 levels.

5. Press the ENT key to confirm the alarm volume.

6. Press the

SUB

MENU

key.

Init setting #1

INIT SETTING #1

Press an item number key.

0. PREVIOUS MENU

1. COURSE EQUIPMENT

2. SPEED EQUIPMENT

3. MANUAL SPEED

4. FUNCTION MENU

5. BUZZER VOLUME

6. DRIFT SET

DRIFT

7. GPS INITIALIZE MENU

8. SETTING DGPS ／ STATUS

9. NEXT MENU

GYRO

MANUAL xx. x KT

OFF x .x

° x. x KT

To close this menu, Press (SUB MENU) key.

HDG SENSOR

LOG GPS

LOW MIDDLE

2AXIS

HIGH

3.3

3

3 – 30

3.3

3.3.16

Enhancing Target

• Expands a target to the display size.

• By expanding a target, the visibility of a small target is improved, thereby improving the sensitivity.

• However, if a target is expanded, the bearing and distance resolution deteriorate.

• The use of "EXP2" is recommended instead of "EXP1".

• The operation characteristics of the target expansion function are as follows.

OFF : The target expansion function is not used.

EXP1

Use this mode when a high resolution is required.

: Expands the target display size to the distance direction.

EXP2

EXP3

Expands also the bearing direction in the center of the screen.

Effective for searching small targets by using Video "PROC3".

Note that the screen may be filled with emphasized noise if Video "PROC2" is used concurrently.

: Expands the target display size to the vertical and horizontal directions.

Can be used regardless of the Video processing.

Use this mode when the sea clutter is strong.

: Mode that sets "EXP1" and "EXP2" concurrently.

Use this mode for detecting small targets such as radio buoy.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 1 key to open the RADAR #1 menu.

Exit

3. Press the 1 key to select "TARGET EXPANSION".

4. Press the 1 key to select "OFF", "EXP1", "EXP2" or "EXP3".

Pressing the key selects "EXP1" – "EXP3" and expands the targets on the PPI screen.

5. Press the ENT key to confirm the setting.

6. Press the

SUB

MENU

key.

3 – 31

Radar #1

RADAR #1

Press an item number key.

0. PREVIOUS MENU

1. TARGET EXPANSION

2. RADAR VIDEO MENU

3. RADAR TRAILS MENU

4. ZOOM

5.

6.

7. DISPLAY COLOR MENU

8.

9.

OFF

OFF

To close this menu, Press (SUB MENU) key.

EXP1

ON

EXP2 EXP3

3.3

3

3 – 32

3.3

3.3.17

Setting Cross Cursor Length and Fixing Cursor Position

This function is used to set the length of the cross cursor or to select the mode for fixing the cursor.

To set the length of the cross cursor

Procedures 1. Press the

SUB

MENU

to open the SUB MENU.

2. Press the 2 key to open the RADAR #2 menu.

3. Press the 5 key to open the CURSOR menu.

Exit

4. Press the 1 key to select "CURSOR LENGTH".

5. Press the 1 key to select "SHORT" or "LONG".

6. Press the ENT key to confirm the setting.

7. Press the

SUB

MENU

key.

Cross cursor

CURSOR

Press an item number key.

0. PREVIOUS MENU

5.

6.

7.

8.

9.

1. CURSOR LENGTH

2. FIXED CURSOR

3.

4.

SHORT

X/Y AXIS

To close this menu, Press (SUB MENU) key.

LONG

X AXIS Y AXIS

3 – 33

3.3

To set the cross cursor fixing mode

Procedures 1. Follow procedures 1 to 3 for setting the cursor length to open the CURSOR menu.

2. Press the 2 key to select "FIXED CURSOR".

3. Press the 2 key to select "X/Y AXES", "X AXIS" or "Y AXIS".

Exit

4. Press the ENT key to confirm the setting.

5. Press the

SUB

MENU

key.

Motion of Fixed Cursor

◎ In order to fix the cursor, press the

Screen display

key.

Pressing the key once fixes the cursor in the direction of the axis selected on the menu.

Pressing it again clears the numerical display of the cursor position.

Pressing it again allows the cursor to move freely.

3

3 – 34

3.3

3.3.18

Displaying Ship's Stern Marker

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 2 key to open the RADAR #2 menu.

Exit

3. Press the 6 key to select "STERN FLASH".

4. Press the 6 key to select "OFF" or "ON".

5. Press the ENT key to confirm the setting.

6. Press the

SUB

MENU

key.

Radar #2

RADAR #2

Press an item number key.

0. PREVIOUS MANU

1. GYRO

2. EBL BEARING

3. PARALLEL INDEX LINE

4.

5. CURSOR MENU

6. STERN FLASH

7. KM ／ NM VRM1

8. KM ／ NM VRM2

9.

0.0

OFF

KM

KM

°

TRUE

OFF

To close this menu, Press (SUB MENU) key.

RELATIVE

ON

ON

NM

NM

3 – 35

3.3

3.3.19

Setting Range Unit in KM

This function is used to switch the range from the own ship to the cursor or the VRM 1/2 range unit to km or nm.

The cursor is selected by VRM1.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 2 key to open the RADAR #2 menu.

Exit

3. Press the 7 key to select "KM ／ NM VRM1".

In case of VRM2, press the 8 key to select "KM ／ NM VRM2".

4. Press the 7 key to select "KM" or "NM" on VRM1.

In case of VRM2, press the 8 key to select "KM" or "NM" on VRM2.

5. Press the ENT key to confirm the setting.

6. Press the

SUB

MENU

key

Radar #2

RADAR #2

Press an item number key.

0. PREVIOUS MANU

1. GYRO

2. EBL BEARING

3. PARALLEL INDEX LINE

4.

5. CURSOR MENU

6. STERN FLASH

7. KM ／ NM VRM1

8. KM ／ NM VRM2

9.

0.0

OFF

KM

KM

°

TRUE

OFF

To close this menu, Press (SUB MENU) key.

RELATIVE

ON

ON

NM

NM

3

3 – 36

3.3

3.3.20

Displaying Video Processing Screen

Attention

●

●

If you'll watch the RADAR BECON and the SART, Set process as follows

PROCESS OFF

If you'll use this function on RM mode, sellect NORTH-UP bearing or COURSE-UP bearing.

This function can't be used on RM mode selected HEAD-UP.

Unnecessary targets are reduced to enhance the intended target(s).

Procedures 1. Press the

MAIN

MENU

key to open the MAIN MENU.

2. Press the 5 switch to select "PROCESS".

Exit

3. Press the 5 switch to select "PROC1", "PROC2" or "PROC3".

Selecting "OFF" returns the video to the normal display.

4. Press the ENT key to confirm the setting.

5. Press the

MAIN

MENU

key.

Motion of Video Processing

• Video processing performs correlation processing for each scan.

• Video processing suppresses random undesired clutter and displays targets only.

• Accurate true bearing signals and speed signals are necessary.

• In SRM/TM/CTM mode, high processing precision can be achieved since processing is performed in true motion.

• In RM mode, processing precision deteriorates due to the moving or traversing of own ship since processing is performed in relative motion.

• When a target moves at a high speed and "PROC1" or "PROC2" is used, the image may be blurred or disappear. In this case, set the processing to "OFF" or use "PROC3".

• Operation characteristics of "PROC1" to "PROC3" are as follows:

OFF : Does not perform correlation processing between scans.

At monitoring a near range such as within a bay, monitoring a target moving at a high speed, or when a true bearing sensor is not connected.

PROC1

PROC2

PROC3

: Suppresses general undesired clutter and displays targets in natural gradation.

: Suppresses random undesired clutter and displays a target by emphasizing it.

Use this processing for detecting small targets hidden by undesired clutter.

: Displays unstable targets of low detection probability.

Use this processing when searching for small targets such as radio buoy in an area free from sea clutter.

3 – 37

Main menu

MAIN MENU

Press an item number key.

1. RADAR ／ TRACK BRILL

2. RR ／ VRM ／ EBL BRILL

3. ARPA BRILL

4. GRAPHIC DATA BRILL

5. PROCESS

6. IR

7. FLOATING EBL

8. VECTOR

9.

To close this menu, Press (MAIN MENU) key.

●

●

●

●

OFF

OFF

OFF

TRUE

[DAY1]

[DAY1]

[DAY1]

[DAY1]

PROC1

IR1

ON

RELATIVE

PROC2

IR2

PROC3

IR3

3.3

3

3 – 38

3.3

3.3.21

Zooming Display

This function is used to display the radar video in the double range scale. The available motion modes are

HUP, CUP and NUP only in the RM mode.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 1 key to open the RADAR #1 menu.

3. Press the 4 key to select "ZOOM".

4. Press the 4 key to select "OFF" or "ON".

5. Press the ENT key to confirm the setting.

6. Move the cross cursor mark (own ship display position) to your desired position using the trackball (it cannot be moved beyond about 65% of the radar display radius from the center).

7. Press the ENT key to zoom display.

Cancellation 8. Press the

RANGE

or

RANGE

key.

Radar #1

RADAR #1

Press an item number key.

0. PREVIOUS MENU

1. TARGET EXPANSION

2. RADAR VIDEO MENU

3. RADAR TRAILS MENU

4. ZOOM

5.

6.

7. DISPLAY COLOR MENU

8.

9.

OFF

OFF

To close this menu, Press (SUB MENU) key.

EXP1

ON

EXP2 EXP3

3 – 39

3.3

3.3.22

Selecting Display Mode [MODE]

This function is used to select the radar, R+P (radar + plotter) or plotter (optional) mode.

Procedures Press the MODE key to select the radar, raddar + plotter or plotter mode.

The R+P (radar + plotter) mode cannot be selected unless both GPS and gyro are installed.

The available motion modes in R+P mode are NUP and CUP only in the TM/CTM mode.

The plotter mode cannot be selected unless the plotter is installed and transmission is stopped.

3.3.23

Using Electronic Plot (EPA)

Attention

The EPA is used for a radar without the ARPA function.

It stores and displays the target course and speed in the form of vector.

Up to 10 ships (plot Nos. 0 to 9) can be specified.

It also calculates the CPA and TCPA and outputs an alarm.

The plotting memory is cleared when the power is turned off.

The previous plot is not displayed.

3.3.23.1 Plotting Target

Attention

A vector is displayed by plotting a target twice.

The plot moves according to the course and speed calculated from the two plotted positions.

The plot can be modified.

The plot No. is not displayed when the plot No. display function is turned off.

Procedures 1. Put the cross cursor mark on the target and press the ACQ switch to start the first plotting.

2. Enter the plot No. using a numeric key ( 0 to 9 ).

3. Press the ENT key to complete the first plotting.

The acquisition symbol ( ) and the plot No. are displayed at the plotting position.

3

3 – 40

3.3

4. 30 seconds to 15 minutes after the first acquisition, put the cross cursor mark at the position to which the target has been moved and start the second plotting by following procedures 1 to 3 above. For the plot No., input the same one as the first plotting. After the second plotting is completed, the symbol and plot No. displayed after the first plotting is completed are cleared and a symbol (vector) and the plot No. are displayed at the second plotting position.

5. The plot (symbol and plot No.) moves according to the fixed course and speed calculated from the two plotting positions. In this status, the CPA and TCPA at the moving position of the plot are calculated and an alarm is output when the plot enters the alarm range.

3.3.23.2 Modifying Plot

Attention

This function is used to modify the specified plot.

Until the plot is cleared and reacquired, the plot immediately before moved to the position to be cleared is displayed.

Procedures 1. Press the

DATA

READ

key.

2. Enter the plot No. to be modified using a numeric key ( 0 to 9 ).

3. Press the CLR key.

At this time, the previously-updated status is displayed and "M", standing for "modification", appears near the mark.

4. Put the cross cursor mark at the position to be modified for reacquisition.

At this time, specify the plot No. input in procedure 2.

ACQ , 0 to 9 , ENT

3.3.23.3 Deleting Plot

Attention

This function is used to delete the display of the specified plot.

The deleted plot cannot be reproduced.

Procedures 1. Press the

DATA

READ

key to enable the plot No. to be entered.

2. Enter the plot No. using a numeric key ( 0 to 9 ).

3. Press the

CANCEL

TARGET

key to delete the plot with the specified plot No.

3 – 41

3.3

To delete all plots

Procedures Keep pressing the

CANCEL

TARGET

key more than 2 seconds.

3.3.23.4 Displaying Plot Numerical Data

Attention

The following data is displayed for the specified plot.

Plot No:

Elapsed time:

Target No.

In 0.1 minute

Target bearing: In 1 degree

Distance to target: In 0.01nm

Target true course: In 1 degree

Target true speed: In 0.1KT

CPA:

TCPA:

In 0.01nm

In 0.1 minute

The TCPA of the plot leaving from the own ship is displayed with "–".

Procedures 1. Press the

DATA

READ

key to enable the plot No. to be entered.

2. Enter the plot No. using a numeric key ( 0 to 9 ).

3. Press the

The symbol of the target whose data is displayed turns to "

To delete data display

key to display the data of the specified plot.

".

Procedures 1. Press the

DATA

READ

key.

2. Press the key to delete the numerical data.

Note

● "U" is displayed near the mark of the target for which the plot has not been updated for more than 10 minutes and an alarm for requesting update goes off.

● The target which has not been updated for more that 15 minutes is automatically deleted.

3

3 – 42

3.3

3.3.23.5 Plot Symbol

Meanings of Symbols

Vector/symbol Meanings

Safety target

M

Remarks

Dangerous target An alarm character (CPA ／ TCPA) appears.

An alarm sounds.

The vector and symbol blink in red.

Initial acquisition mark

Plot under modification

Displayed from the first to teh second plotting.

Target whose numerical data is displayed.

The target symbol turns to numerical data display is specified.

after the

Displayed near the symbol whose plot is being modified. The position of the previous plotting is displayed.

U

Plot update request

Trackball cursor mark

Displayed for the plot which has not been updated for 10 minutes. The plot is cleared 5 minutes after if not being updated (the target which has not been updated for 15 minutes is automatically cleared).

In this case, an alarm for requesting update goes off.

Used for manually acquiring or clearing targets and specifying them in the numeral display mode.

3 – 43

3.3

3.3.23.6 Setting Vector Display

Attention

This function is used to set the plot display mode (true/relative).

The default setting is the true vector mode.

In the true vector mode, the own ship vector is displayed with a thick line.

Setting procedures differ between the fishing and merchant ship modes.

Fishing boat mode

Procedures 1. Press the

MAIN

MENU

key to open the MAIN MANU.

2. Press the 8 key to select "VECTOR".

3. Press the 8 key to select "TRUE" or "RELATIVE".

4. Press the ENT key to confirm the setting. The vector display changes to the true or relative mode.

5. Press the

MAIN

MENU

key.

Merchant ship mode

Procedures Press the

VECT

TRACK

key to select "TRUE" or "RELATIVE".

The vector display changes to the true or relative mode.

Main menu

MAIN MENU

Press an item number key.

1. RADAR ／ TRACK BRILL

2. RR ／ VRM ／ EBL BRILL

3. ARPA BRILL

4. GRAPHIC DATA BRILL

5. PROCESS

6. IR

7. FLOATING EBL

8. VECTOR

9.

To close this menu, Press (MAIN MENU) key.

●

●

●

●

OFF

OFF

OFF

TRUE

[DAY1]

[DAY1]

[DAY1]

[DAY1]

PROC1

IR1

ON

RELATIVE

PROC2

IR2

PROC3

IR3

3

3 – 44

3.3

3.3.23.7 Setting Vector Time

Attention

This function is used to set the vector length.

The default setting is 6 minutes.

Setting procedures differ between the fishing and merchant ship modes.

Fishing boat mode

Procedures 1. Press the

SUB

MENU

key to open the SUBMENU.

2. Press the 3 key to open the RADAR #3 menu.

3. Press the 3 key to open the EPA menu.

Exit

4. Press the 1 key to select "VECTOR TIME".

5. Press the 1 key to enable the vector time to be entered.

6. Enter the vector time (0 to 60 minutes) using numeric keys ( 0 to

9 ).

7. Press the ENT key to confirm the setting.

8. Press the

SUB

MENU

key.

Merchant ship mode

Procedures Press the

VECT+

or

VECT–

DEST

key to increase or decrease the vector time every minute.

EPA

EPA

Press an item number key.

0. PREVIOUS MENU

1. VECTOR TIME

2. PLOT NUMBER

3. LIMITS CPA

TCPA

4. AUDIBLE WARNING

5. DISPLAY OF CPA RING

6.

7.

8.

9.

0 MIN (0-60 MIN)

OFF

1.0 NM (0.1-9.9 NM)

15 MIN (1-99 MIN)

OFF

OFF

To close this menu, Press (SUB MENU) key.

ON

ON

ON

3 – 45

3.3.23.8 Displaying ／ Clearing Plot No.

Attention

This function is used to select whether the plot No. is displayed or not.

The plot No. is not displayed at the default setting.

The number is not displayed when "OFF" is selected.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 3 key to open the REDAR #3 menu.

3. Press the 3 key to open the EPA menu.

4. Press the 2 key to select "PLOT NUMBER".

Exit

5. Press the 2 key to select "OFF" or "ON".

6. Press the ENT key to confirm the setting.

7. Press the

SUB

MENU

key.

EPA

EPA

Press an item number key.

0. PREVIOUS MENU

6.

7.

8.

1. VECTOR TIME

2. PLOT NUMBER

3. LIMITS CPA

TCPA

4. AUDIBLE WARNING

5. DISPLAY OF CPA RING

9.

To close this menu, Press (SUB MENU) key.

0 MIN (0-60 MIN)

OFF ON

1.0 NM (0.1-9.9 NM)

15 MIN (1-99 MIN)

OFF

OFF

ON

ON

3.3

3

3 – 46

3.3

3.3.23.9 Setting CPA ／ TCPA

Attention

This function is used to set the CPA/TCPA for detecting danger targets.

The CPA is set in the range between 0.1 to 9.9nm and the TCPA between 1 and 99 minutes.

The default settings are 1.0nm for the CPA and 15 minutes for the TCPA.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 3 key to open the RADAR #3 menu.

3. Press the 3 key to open the EPA menu.

Exit

4. Press the 3 key to select "LIMITS".

5. Press the 3 key to enable the CPA data to be entered.

6. Enter the CPA data using numeric keys ( 0 to 9 ).

7. Press the ENT key to confirm the setting.

The TCPA data becomes enabled to be entered.

8. Enter the TCPA data using numeric keys ( 0 to 9 ).

9. Press the ENT key to confirm the setting.

10. Press the

SUB

MENU

key.

EPA

EPA

Press an item number key.

0. PREVIOUS MENU

7.

8.

9.

1. VECTOR TIME

2. PLOT NUMBER

3. LIMITS

4. AUDIBLE WARNING

5. DISPLAY OF CPA RING

6.

CPA

TCPA

0 MIN (0-60 MIN)

OFF

To close this menu, Press (SUB MENU) key.

ON

1.0 NM (0.1-9.9 NM)

15 MIN (1-99 MIN)

OFF

OFF

ON

ON

3 – 47

3.3

Danger Target Alarm: CPA ／ TCPA

CAUTION

Since an error may be included in an alarm according to the plotting status, the operator himself must finally judge whether evacuation is necessary or not.

This system displays targets in two levels, safe and danger ships, according to the hazard degree. Since the hazard degree can be checked at a glance on the screen, the operator can easily judge to which target he must pay attention.

The classification and contents of the alarms are as follows:

Status

Safety target

Dangerous Target Alarm

Symbol on CRT Alarm character

Symbol color :

White

(Not display)

Buzzer

(OFF)

Conditions

• CPA > MIN CPA

• 0 > TCPA

• TCPA > MIN TCPA

Dangerous target Symbol color :Red

(Blinking) *

CPA/TCPA

Beeping

Resettable *

• CPA ≤ MIN CPA,

0

≤

TCPA

≤

MIN TCPA

MIN CPA, MIN TCPA : The setting value

* Pressing the

ACK

key stops an alarm sound and blinking.

3

3 – 48

3.3

3.3.23.10 Turning Alarm Sound On ／ Off

Attention

This function is used to whether to turn the alarm sound on or off against danger targets.

The sound is turned on at the default setting.

Setting it at "OFF" does not cause the sound to go off although the alarm detecting function remains turned on.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 3 key to open the RADAR #3 menu.

3. Press the 3 key to open the EPA menu.

4. Press the 4 key to select "AUDIBLE WARNING".

Exit

5. Press the 4 key to select "OFF" or "ON".

6. Press the ENT key to confirm the setting.

7. Press the

SUB

MENU

key.

EPA

EPA

Press an item number key.

0. PREVIOUS MENU

1. VECTOR TIME

2. PLOT NUMBER

3. LIMITS CPA

TCPA

4. AUDIBLE WARNING

5. DISPLAY OF CPA RING

6.

7.

8.

9.

To close this menu, Press (SUB MENU) key.

0 MIN (0-60 MIN)

OFF ON

1.0 NM (0.1-9.9 NM)

15 MIN (1-99 MIN)

OFF ON

OFF ON

3 – 49

3.3.23.11 Displaying ／ Clearing CPA Ring

Attention

This function is used to select whether the CPA ring is displayed or not.

The ring is displayed at the default setting.

In the true vector mode, the CPA ring is not displayed even when this function is set at "ON".

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 3 key to open the RADAR #3 menu.

3. Press the 3 key to open the EPA menu.

Exit

4. Press the 5 key to select "DISPLAY OF CPA RING".

5. Press the 5 key to select "OFF" or "ON".

6. Press the ENT key to confirm the setting.

7. Press the

SUB

MENU

key.

EPA

EPA

Press an item number key.

0. PREVIOUS MENU

6.

7.

8.

9.

1. VECTOR TIME

2. PLOT NUMBER

3. LIMITS CPA

TCPA

4. AUDIBLE WARNING

5. DISPLAY OF CPA RING

To close this menu, Press (SUB MENU) key.

0 MIN (0-60 MIN)

OFF ON

1.0 NM (0.1-9.9 NM)

15 MIN (1-99 MIN)

OFF

OFF

ON

ON

3.3

3

3 – 50

3.3

3.3.24

Displaying Date and Time

The date and time can be displayed only when the GPS is connected.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key three times to open the INITIAL SETTING #3 menu.

Exit

3. Press the 6 key to select "DATE ／ TIME".

4. Press the 6 key to select "OFF", "UTC" or "LOCAL" and press the

ENT key.

The date and time are displayed on the center bottom of the screen.

5. Press the

SUB

MENU

key.

INIT SETTING #3

INIT SETTING #3

Press an item number key.

0. PREVIOUS MENU

1. SHIFT COAST LINE #1

(RADAR PICTURE)

2. SHIFT COAST LINE #2

3. LAT

4. CHART CENTER POSITION

5. DATA INPUT FORMAT

6. DATA

7. SHIP'S TYPE

8.

／ LON CORRECTION

／ TIME

9. NEXT MENU

SETTING DELETE

N 0.000'

E 0.000'

N 0.000'

E 0.000'

N 35˚00.000'

E 135˚00.000'

183 JRC

OFF UTC

FISHING BOAT

To close this menu, Press (SUB MENU) key.

180

LOCAL

MERCHANT

3 – 51

3 – 52

3.3

3

3.3

3.3.25

Displaying the Plain Radar Screen

This system has the functions that the screen using auto/manual suppressing sea clutter or rain clutter and the screen using video processing (for further information, see subsection “3.3.20 Displaying Video Processing

Screen”) is more plainer.

Each function can be also set individually by following procedures, but these can be called by pressing the

FUNC

key.

For further information, see “1. VIDEO LATITUDE, 2. VIDEO NOISE REJECTION, 7. AUTOMATIC

DR CONTROL (AUTO DR CONT)” of the clauses [Page 3] and “1. PROCESS SWITCHING, 2. PROCESS

(PROC) SWITCH RANGE” of the clauses [Page 5] in section “3.4 Using Function Key [FUNC]”.

1. VIDEO LATITUDE

Select the gradation for displaying received signals on a screen.

2. VIDEO NOISE REJECTION

Eliminates signals that are assumed to be noise and clutter from radar videos.

3. AUTOMATIC DR CONTROL (AUTO DR CONT)

Automatically controls video latitude (dynamic range) when automatic STC or FTC is used.

4. PROCESS SWITCHING

Set a boundary distance and switch the video processing mode to be used between the inside and outside of the boundary.

5. PROCESS (PROC) SWITCH RANGE

Set a boundary distance and switch the video processing mode to be used between the inside and outside of the boundary.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 1 key to open the RADAR #1 menu.

3. Press the 2 key to open the RADAR VIDEO menu.

4. Press the 1 to 5 key to select a setting item.

Exit

5. Press the 1 to 5 key to select a setting value and press the

ENT key.

6. Press the

SUB

MENU

key.

3 – 53

Radar video

RADAR VIDEO

Press an item number key.

0. PREVIOUS MENU

1. VIDEO LATITUDE

2. VIDEO NOISE REJECTION

3. AUTO DR CONT

4. PROCESS SWITCHING

5. PROC SWITCH RANGE

6.

7.

8.

9.

NARROW

OFF

OFF

OFF

3.0 NM

To close this menu, Press (SUB MENU) key.

WIDE

LEVEL1

ON

ON

LEVEL2

3.3

3

3 – 54

3.3

3.3.26

Setting Echo Power

This function is effective when the screen has become obscure due to false images, etc. caused by multiple reflections on a narrow water channel or river.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 3 key to open the RADAR #3 menu.

3. Press the 2 key to select "ECHO POWER".

4. Press the 2 key to select "100", "50" , "25" or "10" and press the

ENT key.

Select the set value where multiple reflections disappear.

Exit 5. Press the

SUB

MENU

key.

Note

● Note that long-range sensitivity will lower if this function is used at other settings than 100%.

Radar #3

RADAR #3

Press an item number key.

0. PREVIOUS MENU

1. RADAR DISPLAY AREA

2. ECHO POWER

3. EPA MENU

4. XMIT REPETITION FREQUENCY

5.

6.

7.

8.

9. PERFORMANCE MONITOR

To close this menu, Press (SUB MENU) key.

STANDARD

100 50 25

WIDE

10 %

NORMAL HIPOWER ECONOMY

3 – 55

3.4

Using Function Key [Func]

3.4.1 Overview

The "Radar function setting" enables users to constantly obtain the optimum radar video by storing the settings of complicated radar signal processing functions in the optimum state for each purpose and calling the required setting according to the use condition.

The contents are set when the radar is delivered from the factory according to the general usage condition.

The setting contents can be adjusted in detail through menu operations.

The following four function modes can be used. The modes are set as follows at delivery from the factory.

Function 1 : COAST

Function 2 : DEEP SEA

Function 3 : BUOY

Function 4 : STORM

3.4.2 Operation Method

(1) Calling a function

• Whenever the

FUNC

key is pressed, the function is switched in the order of Function Off

➝

Function 1

➝

Function 2

➝

Function 3

➝

Function 4

➝

Function Off.

• The name of the function mode that is currently being called is displayed on the top-left corner of the screen.

(2) Changing a Setting (Temporary Change)

• When the setting of the radar signal processing is changed using the MAIN MENU or SUB MENU while one of the functions from Function 1 to Function 4 is called, the change is reflected in the operation state temporarily.

• However, since the stored contents are not changed, the change is cancelled as soon as some other function setting is called. (When the function setting is called again, the operation is set according to the stored contents.)

(3) Changing a Setting (Changing the Stored Contents)

• When changing the stored contents of one of the functions from Function 1 to Function 4, press the

SUB

MENU

,

9

,

4

keys to open the SET FUNC menu and select a required function number.

• The function setting items cover five pages and the pages can be scrolled by using the

0

and

9

keys.

• To store the current operation status in the function number, select "8. SAVE PRESENT STATE" of the function setting item page 1. Use this function when a required setting is found and the status is to be stored.

• To reset the stored contents to the status set at factory delivery, select "6. INITIALIZE" of the function setting item page 5. Use this function when the function changes that were made are too complicated to return to the original state.

3 – 56

3

3.4

3.4.3 Function Setting Items

See below for the menu structure of the function setting items.

Page 1

1. MODE

2. PROCESS

3. IR

4. AUTO STC/FTC

5. TGT EXPANSION

6.

7.

8. SAVE PRESENT STATE

(Select the name to be used)

OFF

OFF

OFF

PROC1

IR1

PROC2

IR2

AUTO STC AUTO FTC

OFF EXP1 EXP2

PROC3

IR3

EXP3

Page 2

1. PULSE WIDTH 0.75NM

2. PULSE WIDTH 1.5NM

3. PULSE WIDTH 3NM

4. PULSE WIDTH 6NM

5. PULSE WIDTH 12NM

6. PULSE WIDTH 16NM

SP

SP

SP

SP

SP

MP

MP

MP

MP

MP

MP

LP

LP

LP

LP

LP

Page 3

1. VIDEO LATITUDE NORMAL WIDE

2. VIDEO NOISE REJECTION

3. GAIN OFFSET

OFF LEVEL1

±

NUMERIC VALUE

4. XMIT REPETITION FREQUENCY

NORMAL

5. SMALL BUOY DETECTION OFF

6. FISHING NET DETECTION

7. AUTO DR CONT

OFF

OFF

HIPOWER

ON

ON

ON

NARROW

LEVEL2

ECONOMY

Page 4

1. RADAR TRAILS INTERVAL 1MIN

15MIN

2. RADAR TRAILS REF LEVEL LEVEL1

3. RADAR TRAILS REDUCTION OFF

4. RADAR TRAILS PROCESS OFF

5. RADAR TRAILS SMOOTHING OFF

3MIN

30MIN

LEVEL2

LEVEL1

ON

ON

6MIN

60MIN

LEVEL3

LEVEL2

12MIN

CONT

LEVEL4

LEVEL3

Page 5

1. PROCESS SWITCHING

2. PROC SWITCH RANGE

3.

4.

5.

6. INITIALIZE

OFF ON

NUMERIC VALUE

3 – 57

3.4

3.4.4 Operation Outline of the Function Setting Items

See below for the operation outline of each function setting item.

[Page 1] 1. MODE

• Select the name of the function displayed on the top-left corner of the screen when the function mode is selected.

• When the mode is reset to the mode set at factory delivery, the initial value of the selected mode is called.

• The following eleven modes are available.

COAST : Use this mode for monitoring a comparatively near range where there are many ships such as a bay or a coastal line. (Emphasizes resolution)

DEEP SEA : Use this mode for monitoring a comparatively far range such as open sea.

(Emphasizes a far range sensitivity)

FISH NET : Use this mode for searching for small targets hidden by sea clutter such as net edges.

(Emphasizes sea clutter suppression; the sensitivity of moving target deteriorates

STORM slightly)

: Use this mode when there are many rain/snow clutter or sea clutter due to strong

CALM

RAIN

BIRD

LONG

BUOY

USER 1

USER 2 wind and rain. (Emphasizes suppression of rain/snow clutter or sea clutter; the sensitivity deteriorates slightly)

: Use this mode when there are few rain/snow clutters or sea clutter.

: Use this mode when there are many rain clouds although the sea clutter is low.

(Emphasizes rain/snow clutter suppression; the sensitivity deteriorates slightly)

: Use this mode for searching a flock of several tens of sea birds flying low at a near range or for searching for a flock of several hundreds of sea birds flying high at a far range.

: Use this mode for monitoring a comparatively far range on an open-sea in order to search for small targets.

: Use this mode for searching small targets such as radio buoy outside of the sea clutter. (Displays targets of low detection probability)

: General-purpose mode. Use this mode when the mode is not applicable to any of the nine modes indicated above.

: General-purpose mode. Use this mode when the mode is not applicable to any of the nine modes indicated above.

Page 1

1. MODE

2. PROCESS

3. IR

4. AUTO STC/FTC

5. TGT EXPANSION

6.

7.

8. SAVE PRESENT STATE

(Select the name to be used)

OFF

OFF

OFF

PROC1

IR1

PROC2

IR2

AUTO STC AUTO FTC

OFF EXP1 EXP2

PROC3

IR3

EXP3

3

3 – 58

3.4

[Page 1] 2. PROCESS

• Video processing performs correlation processing for each scan.

• Video processing suppresses random undesired clutter and displays targets only.

• Accurate true bearing signals and speed signals are necessary.

• In SRM/TM/CTM mode, high processing precision can be achieved since processing is performed in true motion.

• In RM mode, processing precision deteriorates due to the moving or traversing of own ship since processing is performed in relative motion.

• When a target moves at a high speed and "PROC1" or "PROC2" is used, the image may be blurred or disappear. In this case, set the processing to "OFF" or use "PROC3".

• Operation characteristics of "PROC1" to "PROC3" are as follows:

OFF : Does not perform correlation processing between scans.

At monitoring a near range such as within a bay, monitoring a target moving at a

PROC1

PROC2

PROC3 high speed, or when a true bearing sensor is not connected.

: Suppresses general undesired clutter and displays targets in natural gradation.

: Suppresses random undesired clutter and displays a target by emphasizing it.

Use this processing for detecting small targets hidden by undesired clutter.

: Displays unstable targets of low detection probability.

Use this processing when searching for small targets such as radio buoy in an area free from sea clutter.

[Page 1] 3. IR

• Eliminates the interference by radio waves transmitted by other radar equipment.

• The interference elimination effect increases as the number increases such as IR1 ➝ IR2 ➝ IR3, however, the sensitivity deteriorates.

• Sensitivity deterioration can be prevented by selecting processing of as smaller number as possible.

• By pressing the [BRILL] control, the transmission repetition frequency can be changed sensitively.

Interference waves can be eliminated effectively by using this function concurrently.

• The interference wave elimination circuit suppresses transceiver noise also. By increasing the processing number, the noise displayed can be reduced. When the maximum sensitivity is required, adjust by turning the [GAIN] control clockwise until a required noise level is displayed.

Page 1

1. MODE

2. PROCESS

3. IR

4. AUTO STC/FTC

5. TGT EXPANSION

6.

7.

8. SAVE PRESENT STATE

(Select the name to be used)

OFF

OFF

OFF

PROC1

IR1

PROC2

IR2

AUTO STC AUTO FTC

OFF EXP1 EXP2

PROC3

IR3

EXP3

3 – 59

3.4

[Page 1] 4. AUTO STC/FTC

• Detects undesired clutter such as rain/snow clutter and sea clutter and performs suppression processing automatically.

• Performs suppression processing automatically according to the condition even if the sea condition or weather condition changes.

• However, this is not fully automated processing and the user must adjust the degree of remaining undesired clutter.

• Use the [SEA CLUTTER] control for adjustment of the degree of remaining sea clutter.

• Use the [RAIN CLUTTER] control for adjustment of the remaining rain/snow clutter.

• In an area of a low undesired clutter density, undesired clutter may be judged as targets and remain.

Therefore, when using the automatic clutter suppression function, use "PROC1" or "PROC2".

• The operation features of the automatic clutter suppression function are as follows.

OFF : The automatic clutter suppression function is not used.

Use this mode for a bay with low rain/snow clutter or sea clutter or a calm day.

AUTO STC : Detects a sea clutter intensity automatically and performs the optimum sea clutter suppression processing.

The optimum processing effect can be achieved even if the sea clutter intensity varies according to the wind direction.

Since there is no signal attenuation in the area without sea clutter, a land such as an island in which the far range sensitivity is enhanced can be displayed naturally.

However, since this mode recognizes rain clouds in areas outside of the sea clutter range, there is no rain cloud suppression effect.

AUTO FTC : Automatically detects the rain/snow clutter intensity and performs rain/snow clutter suppression processing in addition to automatic STC.

When rain clouds exist sparsely, this mode performs rain/snow clutter suppression processing for the rain cloud area only.

However, since this mode recognizes the land as a rain cloud also, the image of the land becomes weak.

Page 1

1. MODE

2. PROCESS

3. IR

4. AUTO STC/FTC

5. TGT EXPANSION

6.

7.

8. SAVE PRESENT STATE

(Select the name to be used)

OFF

OFF

OFF

PROC1

IR1

PROC2

IR2

AUTO STC AUTO FTC

OFF EXP1 EXP2

PROC3

IR3

EXP3

3

3 – 60

3.4

[Page 1] 5. TARGET (TGT) EXPANSION

• Expands a target to the display size.

• By expanding a target, the visibility of a small target is improved, thereby improving the sensitivity.

• However, if a target is expanded, the bearing and distance resolution deteriorate.

• The use of "EXP2" is recommended instead of "EXP1".

• The operation characteristics of the target expansion function are as follows.

OFF

EXP1

: The target expansion function is not used.

Use this mode when a high resolution is required.

: Expands the target display size to the distance direction.

Expands also the bearing direction in the center of the screen.

Effective for searching small targets by using "PROC3".

Note that the screen may be filled with emphasized noise if "PROC2" is used concurrently.

EXP2

EXP3

: Expands the target display size to the vertical and horizontal directions.

Can be used regardless of the Video processing.

Use this mode when the sea clutter is strong.

: Mode that sets "EXP1" and "EXP2" concurrently.

Use this mode for detecting small targets such as radio buoy.

Page 1

1. MODE

2. PROCESS

3. IR

4. AUTO STC/FTC

5. TGT EXPANSION

6.

7.

8. SAVE PRESENT STATE

(Select the name to be used)

OFF

OFF

OFF

PROC1

IR1

PROC2

IR2

AUTO STC AUTO FTC

OFF EXP1 EXP2

PROC3

IR3

EXP3

3 – 61

3.4

[Page 2] 1 to 6. PULSE WIDTH

• Sets a pulse width to be used for the target in each range.

• When the function mode is called, the width is set as the pulse width of the range.

• When a pulse width is changed on the operator panel after the function mode is called, the pulse width is changed temporarily. However, when the device is set to a preparation state or some other function mode is called, the value is reset to the value that is stored.

• Use the SET FUNC menu to change the pulse width to be stored.

• Normally, use "MP". Use "LP" to improve the far range sensitivity, and "SP" to improve the clutter suppression performance due to bad sea or weather condition.

SP : The range resolution is higher than that of "MP".

MP

The clutter suppression performance is higher than that of "MP".

The sensitivity is lower than that of "MP".

: Standard pulse width in the range.

LP : The sensitivity is higher than that of "MP".

The range resolution is lower than that of "MP".

The clutter suppression performance is lower than that of "MP".

Page 2

1. PULSE WIDTH 0.75NM

2. PULSE WIDTH 1.5NM

3. PULSE WIDTH 3NM

4. PULSE WIDTH 6NM

5. PULSE WIDTH 12NM

6. PULSE WIDTH 16NM

SP

SP

SP

SP

SP

MP

MP

MP

MP

MP

MP

LP

LP

LP

LP

LP

3

3 – 62

3.4

[Page 3] 1. VIDEO LATITUDE

• Select the gradation for displaying received signals on a screen.

• Use "NORMAL" as the standard condition and select "WIDE" in rainy weather.

• In "NARROW" mode, images of a close range are displayed in strong contrast.

NORMAL : Setting in the standard use.

The display dynamic range varies according to the range.

WIDE

Short range setting > medium range setting > long range setting

: Setting when the radar is used in rainy weather.

The range is approximately doubled from that of "NARROW" in each range.

NARROW : Obtains images of strong contrast by narrowing the dynamic range of a near range.

[Page 3] 2. VIDEO NOISE REJECTION

• Eliminates signals that are assumed to be noise and clutter from radar videos.

• Select "OFF" when displaying radar videos in analog mode.

• Select "LEVEL1" or "LEVEL2" when suppressing display of noise and clutter.

• Select "LEVEL1" or "LEVEL2" when using "BLUE" as the background color.

OFF : Sets noise elimination to Off and displays all the signal levels.

Displays images in analog signal mode by floating echoes in the noise.

LEVEL 1

LEVEL 2

: Completely eliminates signals that are assumed to be undesired clutter (noise, rain/ snow).

Displays signals that cannot be definitely defined to be signals or undesired clutter.

: Completely eliminates signals (noise and clutter) that are assumed to be undesired clutter (noise, rain/snow).

Eliminates signals that cannot be definitely defined to be signals or undesired clutter.

Displays signals that can be definitely defined as signals.

Page 3

1. VIDEO LATITUDE NORMAL WIDE

2. VIDEO NOISE REJECTION

3. GAIN OFFSET

OFF LEVEL1

±

NUMERIC VALUE

4. XMIT REPETITION FREQUENCY

NORMAL

5. SMALL BUOY DETECTION OFF

6. FISHING NET DETECTION

7. AUTO DR CONT

OFF

OFF

HIPOWER

ON

ON

ON

NARROW

LEVEL2

ECONOMY

3 – 63

3.4

[Page 3] 3. GAIN OFFSET

• Corrects the sensitivity in the state where the function mode is called.

• Delicate adjustments of sensitivity are necessary to achieve the optimum sensitivity since the noise level that is displayed changes according to the combination of video processing and radar interference processing.

• The gain offset function enables achievement of constant optimum sensitivity without having to operate the [GAIN] control at switching of the function mode by storing the [GAIN] control correction value in each function mode.

• Set the value to "+" to increase the sensitivity.

• Set the value to "-" to reduce the sensitivity.

• For radar interference processing, set the gain offset value to "+" side, since the noise level decreases as the value increases.

• When "PROC1" or "PROC2" is used, set the gain offset value to the "+" side since the noise level decreases.

• When "PROC3" is used, set the gain offset value to "-" side since noise remains on the screen exceeding the image processing threshold value.

• When "TGT EXPANSION" is used, set the gain offset value to the "-" side since noise is emphasized.

[Page 3] 4. TRANSMISSION (XMIT) REPETITION FREQUENCY

• Select one of three transmission repetition frequency types.

• The transmission repetition frequency relates to the sensitivity and power consumption (life span of magnetron).

• When the transmission repetition frequency is high, the sensitivity improves, however, the power consumption also increases, reducing the life span of the magnetron.

• When the transmission repetition frequency is low, the power consumption decreases, increasing the magnetron life span, however, the sensitivity deteriorates.

• The radar trails reduction processing demonstrates the effect when the transmission repetition frequency is "ECONOMY".

NORMAL : Balanced setting for the sensitivity and the life span of the magnetron.

HIPOWER : Hipower setting; use for detecting small targets.

However, the life span of the magnetron is reduced.

ECONOMY : Economy setting. The maximum life span of the magnetron can be increased.

However, the sensitivity deteriorates slightly.

Use this mode at radar trail fine line processing.

When the fales echoes appear by anomalous propagation, using this mode reduces those fales echoes.

See section “5.4 [V] Anomalous Propagation”.

Page 3

1. VIDEO LATITUDE NORMAL WIDE

2. VIDEO NOISE REJECTION

3. GAIN OFFSET

OFF LEVEL1

±

NUMERIC VALUE

4. XMIT REPETITION FREQUENCY

NORMAL

5. SMALL BUOY DETECTION OFF

6. FISHING NET DETECTION

7. AUTO DR CONT

OFF

OFF

HIPOWER

ON

ON

ON

NARROW

LEVEL2

ECONOMY

3 – 64

3

3.4

[Page 3] 5. SMALL BUOY DETECTION

• In this mode, the signal processing circuit loss is low when small buoy are detected.

OFF : Normal signal processing setting.

ON : The radar interference processing circuit is switched to small buoy detection processing.

Low loss IR processing ➝ IR1 of small buoy detection

Normal IR1

➝

IR2 of small buoy detection

Normal IR2

➝

IR3 of small buoy detection

However, the interference elimination performance of low loss IR processing is lower than that of normal IR processing.

[Page 3] 6. FISHING NET DETECTION

• Use this mode when searching for small targets (fishing net and fishing buoy that are hidden among sea clutter of a near range.

• When using the fishing net detection mode to "ON", make sure to use automatic FTC or automatic

STC.

• When the fishing net detection mode is set to "ON", the sea clutter may not disappear even if the

[SEA CLUTTER] control is turn to the maximum level, as long as STC is used.

OFF

ON

: The fishing net detection mode is not used.

The preset STC is normal setting. (for vessels)

: The fishing net detection mode is used.

The preset STC is set to the fishing net detection mode. (for small targets)

[Page 3] 7. AUTOMATIC DR CONTROL (AUTO DR CONT)

• Automatically controls "VIDEO LATITUDE" (dynamic range) when automatic STC or FTC is used.

• At automatic STC, this mode expands the dynamic range only for the area with strong sea clutter and reduces the dynamic range for the area without sea clutter, enhancing the sensitivity.

• At automatic FTC, the mode expands the dynamic range of the area with strong sea clutter and rain/ snow clutter and reduces the dynamic range of other areas, enhancing the sensitivity.

• When automatic FTC is used, land images become weak.

OFF

ON

: DR (dynamic range) automatic control is not performed.

The dynamic range (video latitude) is the same setting as that of manual STC.

: Performs automatic DR control. (normal setting)

Page 3

1. VIDEO LATITUDE NORMAL WIDE

2. VIDEO NOISE REJECTION

3. GAIN OFFSET

OFF LEVEL1

±

NUMERIC VALUE

4. XMIT REPETITION FREQUENCY

NORMAL

5. SMALL BUOY DETECTION OFF

6. FISHING NET DETECTION

7. AUTO DR CONT

OFF

OFF

HIPOWER

ON

ON

ON

NARROW

LEVEL2

ECONOMY

3 – 65

3.4

[Page 4] 1. RADAR TRAILS INTERVAL

• Specify the radar trail length in minutes.

• The specifiable radar trail lengths are "1MIN", "3MIN", "6MIN", "12MIN", "15MIN", "30MIN",

"60MIN" and "CONT".

• When "CONT" is specified, radar trailing is continued without time control for radar trail length.

[Page 4] 2. RADAR TRAILS REFERENCE (REF) LEVEL

• Select a level of the radar videos required for drawing a radar trail.

• The required radar video becomes high as the number increases such as level 1

➝

level 2

➝

level 3

➝ level 4.

• Set a high level when a radar trail is created with clutter and noise.

• Set a high level to create a fine radar trail.

• Reduce the level when the radar trail is not continuous.

[Page 4] 3. RADAR TRAILS REDUCTION

• Sets radar trails reduction processing.

• The effect of radar trails reduction processing increases as the number increases such as level 1 ➝ level 2 ➝ level 3 ➝ level 4, making the radar trail finer.

• Radar trails reduction processing will not weaken radar videos.

• When radar trails reduction processing is used, a high fine line effect can be achieved by setting

"XMIT REPETITION FREQUENCY" to "ECONOMY".

OFF

LEVEL 1

LEVEL 2

: Radar trails reduction processing is not performed.

: Performs radar trails reduction processing. (Effect: low)

: Performs radar trails reduction processing. (Effect: middle)

LEVEL 3 : Performs radar trails reduction processing. (Effect: high)

Page 4

1. RADAR TRAILS INTERVAL 1MIN

15MIN

2. RADAR TRAILS REF LEVEL LEVEL1

3. RADAR TRAILS REDUCTION OFF

4. RADAR TRAILS PROCESS OFF

5. RADAR TRAILS SMOOTHING OFF

3MIN

30MIN

LEVEL2

LEVEL1

ON

ON

6MIN

60MIN

LEVEL3

LEVEL2

12MIN

CONT

LEVEL4

LEVEL3

3

3 – 66

3.4

[Page 4] 4. RADAR TRAILS PROCESS

• Select whether video processing is performed for radar signals to create a radar trail.

• When radar trails process is set to "ON", a radar trail may not be created due to clutter and noise and a radar trail of the target moving at a high speed may not be created.

• When radar trails process is set to "OFF", a radar trail may be created by clutter and noise and a radar trail of the target that moves at a high speed can be created.

OFF

ON

: Video processing is not performed for the radar signals that create a radar trail.

: Video processing is performed for the radar signals that create a radar trail.

[Page 4] 5. RADAR TRAILS SMOOTHING

• Select whether a radar trail is smoothed for display.

• When a radar trail is not continuous, the radar trail is smoothed by connecting the disconnected sections when displayed.

• When radar trail smoothing is used, the radar trails become slightly thicker. Set smoothing to "OFF" to make the radar trail finer.

• Since smoothing processing is performed at the display stage of a radar trail, the radar trail storage data will not be changed. (When smoothing is set to "OFF" after it is set to "ON", the data is reset to the original state immediately.)

OFF

ON

: Radar trails smoothing processing is not performed.

: Radar trails smoothing processing is performed.

Page 4

1. RADAR TRAILS INTERVAL 1MIN

15MIN

2. RADAR TRAILS REF LEVEL LEVEL1

3. RADAR TRAILS REDUCTION OFF

4. RADAR TRAILS PROCESS OFF

5. RADAR TRAILS SMOOTHING OFF

3MIN

30MIN

LEVEL2

LEVEL1

ON

ON

6MIN

60MIN

LEVEL3

LEVEL2

12MIN

CONT

LEVEL4

LEVEL3

3 – 67

3.4

[Page 5] 1. PROCESS SWITCHING

• Set a boundary distance and switch the video processing mode to be used between the inside and outside of the boundary.

• Video processing outside of the boundary is set to "PROC3".

• Video processing inside of the boundary is set to the video processing mode that is set in the menu.

(PROC1 to 3)

• Use the process switching function when "PROC3" is to be used for a far range, however, "PROC2" is to be used inside of the boundary due to the sea clutter at the center such as buoy search.

• Set the process switch range of this function in "2. PROC SWITCH RANGE" of the function setting item page 5.

OFF

ON

: Process switching is not performed.

: Process switching is performed.

[Page 5] 2. PROCESS (PROC) SWITCH RANGE

• Set a boundary distance and switch the video processing mode between the inside and outside of the boundary.

• Set a boundary distance in this item.

• The boundary distance can be set within the range from 0.1 to 25.5nm in 0.1nm units.

• After a menu is selected, the menu screen is cleared and the boundary distance setting screen is displayed.

• Use the [VRM] control to adjust a distance. After determining a distance, press the ENT key and define the setting value.

• The storage value of VRM1 becomes the boundary distance value as a result of distance adjustment operation.

[Page 5] 6. INITIALIZE

• Resets the selected function mode settings to the factory delivery state.

• All the settings that were changed in pages 1 to 4 of the SET FUNC menu are lost.

• Use this function to reset to the standard video when the video became unnatural due to too many changes.

Page 5

1. PROCESS SWITCHING

2. PROC SWITCH RANGE

3.

4.

5.

6. INITIALIZE

OFF ON

NUMERIC VALUE

3

3 – 68

3.4

3 – 69

3.5

Displaying the Chart

3.5.1 Displaying a C-MAP Marine Chart

• There are two types C-MAP CARD.

• One is "WORLD BACKROUND" card that contains basic information displaying chart.

• The other is "CHART" card that contains coast line, light house etc.

• Insert each card as below.

Note

● When CTM motion mode is selected in R+P mode, C-MAP Marine Chart can not be displayed on the screen.

INSERT SLOT1

INSERT SLOT2

C-MAP

WORLD BACKGROUND

C-MAP

PUSAN TO SAHALINSKI Y

3

WORLD BACKGROUND CARD CHART CARD

CARD SLOT

X

1

6

Y

2

7

3

NUM

8

4

9

5

0

Upper : SLOT1

Lower : SLOT2

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 4 key to open the RADAR #4 menu.

3. Press the 6 key to open the C-MAP menu.

3 – 70

3.5

Turns on or off the display of a latitude/longitude grid.

4. Press the 1 key to select "GRID DISPLAY", and press the 1 key to select "OFF" or "ON", and press the ENT key to confirm the setting.

Turns on or off the display of the sounding depth.

5. Press the 2 key to select "SOUNDING DISPLAY", and press the

2 key to select "OFF" or "ON", and press the ENT key to confirm the setting.

Select the unit of soundings depth from FEET, FATHOM, METER, and DECIMAL FATHOM.

6. Press the 3 key to select "SOUNDING DEPTH UNIT", and press the

3 key to select each unit, and press the ENT key to confirm the setting.

Specify whether the light sectors are to be displayed with a circle.

7. Press the 4 key to select "LIGHT SECTOR DISPLAY", and press the

4 key to select "OFF" or "ON", and press the ENT key to confirm the setting.

8. Press the 5 key to select "LIGHT SECTOR DISPLAY LEVEL", and press the 5 key to select "A" to "H", and press the ENT key to confirm the setting.

Turns on or off the display of the FILL LAND AREA.

9. Press the 6 key to select "FILL LAND AREA", and press the 6 key to select "OFF" or "ON", and press the ENT key to confirm the

Exit setting.

10.Press the

SUB

MENU

key.

3– 71

3.5

C-MAP MENU

C-MAP MENU

Press an item number key.

0. PREVIOUS MENU

1. GRID DISPLAY

2. SOUNDING DISPLAY

3. SOUNDING DEPTH UNIT

OFF

OFF

ON

ON

7.

8.

9.

FEET FATHOM

4. LIGHT SECTORS DISPLAY OFF

METERS

ON

DECIMAL FATHOM

5. LIGHT SECTORS DISPLAY LEVEL A B C D E F G H

6. FILL LAND AREA OFF ON

To close this menu, Press (SUB MENU) key.

3.5.2 Displaying Shoreline ROM Card made by JRC

• As the shoreline ROM card is inserted into card slot 1 or card slot 2, the shoreline is displayed automatically.

• The shoreline ROM card can be inserted 2 cards into card slot 1 and 2, but the card in card slot 2 has the card in card slot 1 over.

• The shoreline ROM card made by JRC can't be inserted into card slot with ERC card and C-MAP card.

• As the card is inserted into card slot, the surface of the card is upper side.

CARD SLOT

3 the surface of the CARD

X

1

6

Y

2

7

3

NUM

8

4

9

5

0

Upper : SLOT1

Lower : SLOT2

INSERT SLOT1 or SLOT2

3 – 72

3.5

3.5.3 Displaying the ERC Card

• As the ERC card is inserted into card slot 1 or card slot 2, the coast line is displayed automatically.

• The ERC card can be inserted 2 cards into card slot 1 and 2.

• The ERC card can't be inserted into card slot 1 and 2 with JRC card and C-MAP card.

• As the card is inserted into card slot, the surface of the card is upper side.

CARD SLOT

INSERT

SLOT1 or

SLOT2

X

1

6

Y

2

7

3

NUM

8

4

9

5

0

Upper : SLOT1

Lower : SLOT2 the surface of the CARD

3– 73

3.5

3.5.4 Display the JRC Chart

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 4 key to open the RADAR #4 menu.

Exit

3. Press the 7 key to open the JRC/ERC CARD menu.

4. Press the 1 key to select "FILL LAND AREA", and press the 1 key to select "OFF" or "ON", and Press the ENT key to confirm the setting.

5. Press the 2 key to select "ERC DISP REQUEST", and press the

2 key to select "OFF" or "ON", and press the ENT key to confirm the setting.

6. Press the

SUB

MENU

key.

JRC/ERC CARD

JRC/ERC CARD

Press an item number key.

0. PREVIOUS MENU

5.

6.

7.

8.

9.

1. FILL LAND AREA

2. ERC DISP REQUEST

3.

4.

OFF

OFF

To close this menu, Press (SUB MENU) key.

ON

ON

3

3 – 74

3.5

3.5.5 Displaying the Contour of the Shoreline ROM Card by JRC

This function is used to display and select depth and color of contour of JRC card.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 4 key to open the RADAR #4 menu.

3. Press the 8 key to open the CONTOUR OF JRC CARD menu.

4. Press the numeric keys ( 1 to 9 ) to select contour number.

Exit

5. Press the numeric key ( 1 to 9 ) pressed in procedure 4 again, the depth of the contour number is selected.

Enter the depth of the contour number by using numeric key ( 0 to

9 ), and press the ENT key to confirm the setting.

6. Press the numeric key ( 1 to 9 ) pressed in procedure 4 again, the color of the contour number is selected.

Press the same numeric key ( 1 to 9 ) to select color, and press the ENT key to confirm the setting.

7. By procedure 4 to 6, the depth of contour of JRC card can be selected 8 patterns.

8. Press the

SUB

MENU

key.

CONTOUR OF JRC CARD

CONTOUR OF JRC CARD

Press an item number key.

0. PREVIOUS MENU

1. 10 M

2. 20 M

3. 30 M

4. 40 M

5. 50 M

6. 60 M

7. 70 M

8. 80 M

9. OTHER

OFF

OFF

OFF

OFF

OFF

SKY GRN

WHT SKY

WHT SKY

WHT SKY

WHT SKY

To close this menu, Press (SUB MENU) key.

YEL

BLU

BLU

BLU

BLU

PNK

GRN

GRN

GRN

GRN

YEL

YEL

YEL

YEL

PNK

PNK

PNK

PNK

RED

RED

RED

RED

OFF WHT SKY BLU GRN YEL PNK RED

OFF WHT SKY BLU GRN YEL PNK RED

OFF WHT SKY BLU GRN YEL PNK RED

3– 75

3 – 76

3.5

3

3.6

Displaying Own Ship Track

The own ship track can be displayed only in the R+P (radar + plotter) or plotter mode (optional NDB-32).

The display is not available in the radar mode.

3.6.1 Changing Track Color [Combined Plotter]

White, sky, blue, green, yellow, pink and red are available for the track color. The track is not displayed or stored when "OFF" is selected.

Procedures 1. Press the MODE key to select R+P or plotter mode.

2. Press the

OWN

TRACK

key twice.

Check that the track color is displayed in a box on the bottom of the screen.

COLOR

3. Turn the control to select the track color.

The track is displayed with the selected color.

Note

● If plotler (NDB-32) isn't combined, the track color can be displayed only sky in R+P mode.

3.6.2 Selecting Track Storing Interval

The range and time for storing the track can be selected from 3, 5, 10 and 30 seconds, 1, 3, 5, 10, 30 and 60 minutes, and 1, 3, 5 and 10 nm.

Up to 20,000 track (with mark) can be stored.

Procedures 1. Press the MODE key to select R+P (radar + plotter) or plotter mode.

2. Press the

OWN

TRACK

key to open the OWN TRACK menu.

(or press the

SUB

MENU

and 4 keys to open the RADAR #4 menu.)

3. Press the 2 key to select "OWN TRK MEM INTERVAL".

(or press the 1 key on the RADAR #4 menu to select "OWN TRK

MEM INTERVAL".)

4. Press the 2 key to select "3SEC", "5SEC", "10SEC", "30SEC", "1MIN",

"3MIN", "10MIN", "30MIN", "60MIN, "1NM", "3NM", "5NM" or "10NM".

(or press the 1 key on the RADAR #4 menu.)

3 – 77

3.6

Exit

5. Press the ENT key to confirm the setting.

6. Press the

OWN

TRACK

key.

(or press the

SUB

MENU

key to close the RADAR #4 menu.)

OWN TRACK

Press an item number key.

1. DELETE OWN TRACK RED

2. OWN TRK MEM INTERVAL 3SEC 5SEC 10SEC 30SEC 1MIN 3MIN

3. OWN TRACK MEMORY

4. TRACK MEM

5. NUM/VECTOR DISPLAY

5MIN 10MIN 30MIN

OFF ON

NORMAL DEPTH

60MIN

TEMPERATURE

OFF DEPTH TEMP TIDE

1NM 3NM 5NM

6. WATER DEPTH MENU

7. WATER TEMP MENU

8. TIDEWAY MENU

9.

10NM

To close this menu, Press (OWN TRACK) key.

3

RADAR #4

Press an item number key.

0. PREVIOUS MENU

1. OWN TRK MEM INTERVAL 3SEC 5SEC 10SEC 30SEC 1MIN 3MIN

2. DELETE OWN TRACK

3. OWN TRACK MEMORY

4. DISP OWN TRACK COLOR

5MIN 10MIN 30MIN 60MIN 1NM

RED

OFF

ALL

ON

WHT SKY

5. CLEAR OWN TRACK COLOR ALL WHT SKY

BLU

BLU

GRN

GRN

3NM

YEL

YEL

5NM

PNK

PNK

10NM

RED

RED

6. C-MAP MENU

7. JRC/ERC CARD MENU

8. CONTOUR OF JRC CARD MENU

9.

To close this menu, Press (SUB MENU) key.

Note

● If plotler (NDB-32) isn't combined, the OWN TRACK menu will not be opened. You will select "OWN

TRK MEM INTERVAL" on the RADAR #4 menu.

3 – 78

3.6

3.6.3 Stopping Track Storing

This operation is stopped track storing. After stopping storing the track, the track remains displayed although is cleared by enhancing or reducing the screen.

Procedures 1. Press the MODE key to select R+P (radar + plotter) or plotter mode.

2. Press the

OWN

TRACK

key to open the OWN TRACK menu.

(or press the

SUB

MENU

, 4 keys to open the RADAR #4 menu.)

3. Press the 3 key to select "OWN TRACK MEMORY".

(or press the 3 key on the RADAR #4 menu to select "OWN TRACK

MEMORY".)

4. Press the 3 key to select "OFF" or "ON".

Exit

(or press the 3 key on the RADAR #4 menu.)

5. Press the ENT key to confirm the setting.

6. Press the

OWN

TRACK

key.

(or press the

SUB

MENU

key to close the RADAR #4 menu.)

3 – 79

3.6

OWN TRACK

Press an item number key.

1. DELETE OWN TRACK RED

2. OWN TRK MEM INTERVAL 3SEC 5SEC 10SEC 30SEC 1MIN 3MIN

3. OWN TRACK MEMORY

4. TRACK MEM

5. NUM/VECTOR DISPLAY

6. WATER DEPTH MENU

7. WATER TEMP MENU

8. TIDEWAY MENU

9.

5MIN 10MIN 30MIN 60MIN 1NM

OFF ON

NORMAL DEPTH TEMPERATURE

OFF DEPTH TEMP TIDE

3NM 5NM 10NM

To close this menu, Press (OWN TRACK) key.

3

RADAR #4

Press an item number key.

0. PREVIOUS MENU

1. OWN TRK MEM INTERVAL 3SEC 5SEC 10SEC 30SEC 1MIN 3MIN

5MIN 10MIN 30MIN 60MIN 1NM 3NM 5NM

2. DELETE OWN TRACK

3. OWN TRACK MEMORY

4. DISP OWN TRACK COLOR

RED

OFF

ALL

ON

WHT SKY

5. CLEAR OWN TRACK COLOR ALL WHT SKY

BLU

BLU

GRN

GRN

YEL

YEL

PNK

PNK

10NM

RED

RED

6. C-MAP MENU

7. JRC/ERC CARD MENU

8. CONTOUR OF JRC CARD MENU

9.

To close this menu, Press (SUB MENU) key.

3 – 80

3.6

3.6.4 Deleting Track by Color (Using the [COLOR] Control)

Track can be cleared by color. Clearable tracks are limited to those currently displayed on the screen.

Procedures 1. Press the MODE key to select R+P (radar + plotter) or plotter mode.

2. Press the

OWN

TRACK

key to open the OWN TRACK menu.

(or press the

SUB

MENU

, 4 keys to open the RADAR #4 menu.)

3. Press the 1 key to select "DELETE OWN TRACK".

(or press the

COLOR

2 key to select "DELETE OWN TRACK".)

4. Turn the control to select the color.

Exit

5. Press the ENT key to confirm the setting.

6. After the display for confirming deleting appears, press the ENT key to delete the track or the CLR key to cancel deleting.

7. Press the

OWN

TRACK

key.

(or press the

SUB

MENU

key to close the RADAR #4 menu.)

3 – 81

3.6

OWN TRACK

Press an item number key.

1. DELETE OWN TRACK RED

2. OWN TRK MEM INTERVAL 3SEC 5SEC 10SEC 30SEC 1MIN 3MIN

3. OWN TRACK MEMORY

4. TRACK MEM

5. NUM/VECTOR DISPLAY

6. WATER DEPTH MENU

5MIN 10MIN 30MIN

OFF ON

NORMAL DEPTH

60MIN

TEMPERATURE

OFF DEPTH TEMP TIDE

1NM 3NM

7. WATER TEMP MENU

8. TIDEWAY MENU

9.

5NM 10NM

To close this menu, Press (OWN TRACK) key.

3

RADAR #4

Press an item number key.

0. PREVIOUS MENU

1. OWN TRK MEM INTERVAL 3SEC 5SEC 10SEC 30SEC 1MIN 3MIN

5MIN 10MIN 30MIN 60MIN 1NM 3NM

2. DELETE OWN TRACK

3. OWN TRACK MEMORY

RED

OFF ON

BLU GRN YEL

BLU GRN YEL

4. DISP OWN TRACK COLOR ALL WHT SKY

5. CLEAR OWN TRACK COLOR ALL WHT SKY

6. C-MAP MENU

7. JRC/ERC CARD MENU

8. CONTOUR OF JRC CARD MENU

9.

5NM 10NM

PNK RED

PNK RED

To close this menu, Press (SUB MENU) key.

3 – 82

3.6

3.6.5 Deleting Track by Color (Using Menu)

The function for clearing tracks by color using menus is available only in the plotter mode.

Among the stored tracks, only those in the specified color can be deleted. The intenal memory can be saved by deleting unnecessary tracks by color. Be careful not to restore deleting data.

Procedures 1. Press the MODE key to select plotter mode.

2. Press the

SUB

MENU

key to open the SUB MENU.

3. Press the 6 key to open the PLOTTER menu.

(or press the 4 key to open the RADAR #4 menu.)

4. Press the 3 key to open the DISPLAY ／ DELETE OF TRACK ／ MARK

IN DISTINCTION COLOR menu.

5. Press the 3 key to select "CLEAR OWN TRACK COLOR".

Exit

(or press the 5 key to select "CLEAR OWN TRACK COLOR" on the

RADAR #4 menu.)

6. Press the 3 key to select deleting color.

(or press the 5 key on the RADAR #4 menu.)

7. Press the ENT key to confirm the setting.

8. After the display for confirming deleting appears, press the ENT key to delete the track or the CLR to cancel deleting.

9. Press the

SUB

MENU

key.

3 – 83

3.6

DISPLAY/DELETE OF TRACK/MARK IN DISTINCTION COLOR

Press an item number key.

0. PREVIOUS MENU

5.

6.

7.

8.

9.

1. DISP OWN TRK COLOR

2. DISP MARK COLOR ／ TYPE

TYPE

ALL

ALL

WHT SKY BLU

COLOR

3. CLEAR OWN TRK COLOR

ALL

ALL

4. CLEAR MARK COLOR ／ TYPE

TYPE ALL

WHT

WHT

SKY

SKY

BLU

BLU

COLOR ALL WHT SKY BLU

GRN YEL PNK RED

X Y p 〜 o

GEN YEL PNK RED

GRN YEL PNK RED

X Y p 〜 o

GEN YEL PNK RED

To close this menu, Press (SUB MENU) key.

3

RADAR #4

Press an item number key.

0. PREVIOUS MENU

1. OWN TRK MEM INTERVAL 3SEC 5SEC 10SEC 30SEC 1MIN 3MIN

5MIN 10MIN 30MIN 60MIN 1NM 3NM 5NM

2. DELETE OWN TRACK

3. OWN TRACK MEMORY

4. DISP OWN TRACK COLOR

RED

OFF

ALL

ON

WHT SKY

5. CLEAR OWN TRACK COLOR ALL WHT SKY

BLU

BLU

GRN

GRN

YEL

YEL

PNK

PNK

10NM

RED

RED

6. C-MAP MENU

7. JRC/ERC CARD MENU

8. CONTOUR OF JRC CARD MENU

9.

To close this menu, Press (SUB MENU) key.

3 – 84

3.6

3.6.6 Displaying or Hiding Track by Color

The tracks in your desired color can be displayed or hidden. Even when the tracks in your desired color are displayed, those in other colors are not hidden. Selecting "ALL" displays all tracks irrespective of the colors.

Procedures 1. Press the MODE key to select R+P (radar + plotter) or plotter mode.

2. Press the

SUB

MENU

key to open the SUB MENU.

3. Press the 6 key to open the PLOTTER menu.

(or press the 4 key to open the RADAR #4 menu.)

Exit

4. Press the 3 key to open the DISPLAY ／ DELETE OF TRACK ／ MARK

IN DISTINCTION COLOR menu.

5. Press the 1 key to select "DISP OWN TRK COLOR".

(or press the

#4 menu.)

4 key to select "DISP OWN TRK COLOR" on the RADAR

6. Press the 1 key to select displayed color.

(or press the 4 key to select displayed color on the RADAR #4 menu.)

7. Press the ENT key to confirm the setting.

8. Press the

SUB

MENU

key.

3 – 85

3.6

DISPLAY/DELETE OF TRACK/MARK IN DISTINCTION COLOR

Press an item number key.

0. PREVIOUS MENU

1. DISP OWN TRK COLOR

2. DISP MARK COLOR ／ TYPE

TYPE

ALL

ALL

WHT SKY BLU

COLOR

3. CLEAR OWN TRK COLOR

4. CLEAR MARK COLOR ／ TYPE

ALL

ALL

TYPE ALL

WHT

WHT

SKY

SKY

BLU

BLU

GRN YEL PNK RED

X

X

Y

Y p 〜 o

GEN YEL PNK RED

GRN YEL PNK RED p 〜 o

COLOR ALL WHT SKY BLU GEN YEL PNK RED

5.

6.

7.

8.

9.

To close this menu, Press (SUB MENU) key.

3

RADAR #4

Press an item number key.

0. PREVIOUS MENU

1. OWN TRK MEM INTERVAL 3SEC 5SEC 10SEC 30SEC 1MIN 3MIN

5MIN 10MIN 30MIN 60MIN 1NM 3NM 5NM

2. DELETE OWN TRACK

3. OWN TRACK MEMORY

4. DISP OWN TRACK COLOR

RED

OFF

ALL

ON

WHT SKY

5. CLEAR OWN TRACK COLOR ALL WHT SKY

BLU

BLU

GRN

GRN

YEL

YEL

PNK

PNK

10NM

RED

RED

6. C-MAP MENU

7. JRC/ERC CARD MENU

8. CONTOUR OF JRC CARD MENU

9.

To close this menu, Press (SUB MENU) key.

3 – 86

4

MEASUREMENT

4-1 Measurement with Trackball·······························4-1

4-2 Measurement with Fixed Range Ring ················4-2

4-3 Measurement with Electronic Cursor and Variable Range Marker ································4-3

4-4 Measurement between Two Optional

Points of Target ···················································4-4

4.1

Measurement with Trackball

Procedures 1. Check the picture of targets on the screen.

2. Use the trackball and bring the cursor mark to a target.

The range and bearing of the target is displayed on the lower left of the screen. The range is the one from the own ship.

0

45°

Target Cursor

4.0NM

270 90

Own ship

Trackball

Cursor

Position

45.0° R

4.000NM

180

Fig. 4.1

4 – 1

4.2

Measurement with Fixed Range Ring

Procedures Press the

RANGE

RINGS

key.

The fixed range ring appears.

Range is judged from the percentage of target to the fixed range ring spacing.

(The fixed range ring spacing is displayed on the upper left of the screen.)

4

4 – 2

4.3

Measurement with Electronic Cursor and Variable Range Marker

Procedures 1. Press the EBL key and select display and motion of EBL1.

(See subsection “3.3.2 Using EBL (Electronic Cursor) [EBL]”.)

EBL1 on the lower left is displayed in a box and EBL1 is displayed by a short dashes line on the PPI screen.

2. Turn the EBL control and bring EBL1 to a target.

The bearing of EBL1 is displayed on the lower left of the screen.

The bearing of EBL1 is the one of the target.

3. Press the VRM key and select display and motion of VRM1.

(See subsection “3.3.12 Displaying Variable Range Markers [VRM]”.)

VRM1 on the lower left of the screen is displayed in a box and VRM1 is displayed by a short dashes line on the PPI screen.

4. Turn the VRM control to bring VRM1 indicated by a short dashes line to a target.

The range of VRM1 from the own ship is displayed on the lower left of the screen.

The range of VRM1 is the one from the own ship to the target.

See Fig. 4.2, in which the range from the own ship to the target and the bearing are as follows: Range: 4.0nm, Bearing: 45.0

°

0

45°

EBL1

Target

4.0NM

270 90

Own ship

VRM1

EBL1

VRM1

45.0° R

4.000NM

180

Fig. 4.2

4 – 3

4.4

Measurement between Two Optional Points of Target

Procedures 1. Press the EBL key to display EBL1 and to select motion of EBL1.

EBL1 is displayed in a box on the lower left of the screen.

2. Turn the EBL control and bring EBL1 (short dashes line) to Point A.

(See Fig. 4.3.)

3. Open the main menu to select the floating EBL mode.

EBL2 is displayed in a box on the lower left of the screen.

(See subsection “3.3.2 Using EBL (Electronic Cursor) [EBL]".)

4. Use the trackball and bring the starting point of FEBL to Point A.

5. Turn the EBL control and bring FEBL to the other point (Point B). (See

Fig. 4.3.)

6. Press the

VRM

key to display VRM1 or VRM2 and to select its motion.

(See subsection “3.3.12 Displaying Variable Range Markers [VRL]".)

When VRM1 is selected, ○ (VRM marker) appears on FEBL2, and when VRM2 is selected, a circle appears there.

7. Turn the VRM control to move the VRM marker on FEBL to Point B.

The range between the two points and the bearing are displayed in the "VRM" and

"EBL" columns on the lower left of the screen.

(When VRM is movable, its range is displayed in the VRM column.)

340

EBL1

0

Starting point of EBL2

VRM1 marker

FEBL2

Point A Point B

3NM

270 90

Own ship

VRM1

4

180

EBL1

EBL2

VRM1

340.0° R

90.0° R

3.000NM

Fig. 4.3

4 – 4

5

TRUE AND FALSE

ECHOES

ON DISPLAY

5.1

Radar Line-of-sight Range ··································5-1

5.2

Strength of Reflection from Target ····················5-3

5.3

Sea Clutters ··························································5-3

5.4

False Echoes ························································5-3

5.5

Display of Radar Transponder ··························· 5-6

5.1

The role of the radar operator is to analyze pictures on the screen and to help maneuvering the ship as much as possible.

For the purposes, the operator have to fully understand the merits and demerits of the radar before observing the screen.

To analyze pictures on the screen, it is important to get many experiences of comparing targets in sight with their pictures on the screen by operating the radar on sunny days.

The radar is mainly used to monitor courses of the own ship and other ships in open sea, to check buoys and other navigation marks when entering ports, to measure own ship position in coastal waters on the chart to take distances to and bearings of land and island and to observe positions and motions of targets appeared on the screen in heavy rain. Explanations on radar screen will follow hereunder:

5.1

Radar Line-of-sight Range

Radar wave has the characteristic to propagate along the curved surface of the earth. This characteristic varies with the character of air layer through which the wave propagates. In the normal propagation, the radar line-of-sight range (D) can be expressed as follows though the distance is generally said about 10% longer than the distance to the optical line-of-sight range (see Fig. 5.1).

D = 2.23 ( h

1

+ h

2

) (nm) h1 : Height of radar scanner unit above sea level (m) h2 : Height of target above sea level (m)

Fig. 5.2 shows how to radar line-of-sight range in normal wave propagation.

D

Earth h1

Radar

Target h2

Fig. 5.1

5 – 1

5.1

h1(m)

30

20

10

5

0

Height of radar scanner

D (nm)

70

60

50

40

30

20

10

0

Line-of-sight range

Fig. 5.2

When the height of own ship’s antenna is 10m, for example, a) When the radar line-of-sight range is 64nm, the height of a target to be observed on the radar screen have to be 660m or more.

b) When the height of a target is 10m, the radar line-of-sight range is 15nm. But the maximum radar range varies with size of target and weather condition, and the range may increase or decrease.

100

50

25

10

0

Height of target h2(m)

700

660

600

500

400

300

200

5

5 – 2

5.2 ~ 5.4

5.2

Strength of Reflection from Target

The strength of target echo returns depends on component materials and shape of the target as well as height and size of the target, and the echo returns from a high and large target is not always strong in general.

In particular, coastal lines on the screen are affected by land forms, and, when a low land coastal line continues, only inland mountain echo returns are displayed on the screen. So the distance to a coastal line should be measured very carefully.

A mountain to be displayed on the screen.

Coastal line not to be displayed on the screen.

Fig. 5.3

5.3

Sea Clutters

When the sea is rough, a bright and wide picture appears in the center of the screen. The higher the waves are, the stronger echo returns. Swirling current is sometimes displayed as smooth as coastal line.

5.4

False Echoes

Pictures of targets which do not exist actually may bother the observer sometimes. The following are supposed to be causes of such false echoes:

[I] Shadow Effect

When the scanner unit is located in some area, radar waves are reflected with funnel or mast in the vicinity and targets in the direction may not appear on the screen. To check if there exists any shadow area, observe where sea clutters are thin and do not exist on the screen. Such shadow area may appear in the same direction all the time, if any. In this case, you should memorize the direction.

5 – 3

5.4

[II] Influence of Side Lobe

An ark with an broken line may appear in the same distance as the video by the scanner unit beam main lobe. Such false echo is relatively easier to be detected when the target is isolated (see Fig. 5.4).

Fig. 5.4

[III] False Echo by Secondary Reflection

When a target exists near the own ship, two echoes, true echo and indirect echo of the same target may appear. The true echo is caused by direct reflection from the target, and the indirect echo is caused by secondary reflection from mast or funnel as shown in Fig. 5.5. The indirect echo appears in the direction of the mast or funnel.

Direct radio wave path

True echo

Radar scanner

Indirect echo caused by secondary reflection from funnel

Funnel

Radio wave path affected by secondary reflection

Fig. 5.5

[IV] Indirect Echo by Multiple Reflection

When there is a building or a large ship having a large vertical surface as shown in Fig. 5.6, evenly spaced echoes caused by multiple reflection may be displayed. In this case, nearest echo is the true echo of the target.

5

Fig. 5.6

5 – 4

5.4

[V] Anomalous Propagation

The maximum radar range depends on the heights of the antenna and target as explained in section

“5.1 Radar Line-of-sight Range”. If duct occurs on the sea surface in certain atmospheric conditions, however, a transmitted beam of enery will be abnormally propagated and targets far away from the own ship may be detected.

For example, when the radar has been set to the range of 6nm short pulse (with repetition frequency of 1560Hz), the first pulse is reflected from a target about 52nm or more away and is received at the time of next pulse repetition and its false echo is formed at a place about 52nm shorter than the actual distance.

Should a false echo appears 5nm away on the screen, the true distance of the target is 5+52=57nm.

When the radar has been set to the range of 1.5 nm short pulse or medium pulse (with the repetition pulse of 2080Hz), a false echo may appear at a place about 39nm shorter than the actual distance.

This kind of false echo can be judged in observing distance changes of echoes by changing the range scale (the repetition frequency).

When those false echoes always appear on the screen, set "ECONOMY" mode of transmission repetition frequency.

See subsection “7.5.3.10 Setting Transmission Repetition Furequency” or section “3.4 Using Function

Key [FUNC]”.

[VI] Radar Interference

When a radar of the same frequency band is near the own ship, a radar interference pattern will appear on the screen. This interference causes various patterns consisting of many spots. Since these spots do not appear at same places, they can be distinguished from target echoes. (see Fig. 5.7).

Fig. 5.7

5 – 5

5.5

5.5

Display of Radar Transponder

SART (Search and Radar Transponder) is life preserving device approved by GMDSS which is used for locating survivors in the event of a disaster or distress. SART operates in the 9GHz frequency band. When it receives a radar signal (interrogating radio wave) of 9GHz transmitted by a rescue ship or aircraft radar,

SART transmits a series of respouse signals to the searchers to indicate the distress position.

In order to see the SART or radar beacon mark on the radar screen.

q RANGE SCALE : Select 6 or 12 nm w SEA CLUTTER control : Set to minimum e AUTO SEA r TUNE control t IR y PROCESS

: OFF

: DETUNED to reduce the clutter

: Set IR OFF

: Set PROCESS OFF

SART Code

Position of SART

5

Position of the

Rescue Craft

Land

Other Ships

Attention

When above settings q to y are made to display SART signals, objects around the own ship will not appear on the radar screen, so perform thorough visual monitoring of the sea area around the own ship to avoid any collision or stranding.

Further, when more than one radar systems are mounted, while using a 9GHz band radar for searching

SART signals, be sure to use another radar as an ordinary radar to perform monitoring of objects around the own ship to avoid any collision, check of the position of the own ship to avoid any stranding, and so on.

Need to return the set for normal operation on completeion.

5 – 6

MAINTENANCE

6.1

Routine Maintenance···········································6-1

6.2

Maintenance of Each Unit ···································6-2

6.1

Routine Maintenance

CAUTION

Internal inspection and maintenance must be conducted by our special maintenance personnel, otherwise fire or an electric shock may occur.

Ask our sales department, nearest office or your local distributor for internal inspection and maintenance.

Be sure to turn the main power source off before maintenance, otherwise an electric shock may occur.

CAUTION

Do not use any organic solvent such as thinner or benzine when cleaning the surface.

Otherwise the surface coating may be damaged. For cleaning of the surface, remove dirt and dust and wipe it with a clean, dry cloth.

Maintenance as described below is required for keeping the radar in a good condition. Since appropriate maintenance reduces failure, it is recommended to maintain the radar regularly.

6.1.1 Cleaning

Clear the radar body of dust, soil or seawater as much as possible with a dry cloth. In particular, completely clean the air duct using a brush so as to allow sufficient air to go through it.

6 – 1

6.2

Maintenance of Each Unit

6.2.1 Scanner Unit NKE-1055 ／ 1056

WARNING

Before starting maintenance of the scanner unit, be sure to turn off the main power source, otherwise you may get an electric shock or be injured.

Be sure to set the safety switch for stopping the scanner unit to "OFF", otherwise you may be injured.

After maintenance, set the safety switch for stopping the scanner unit to "ON" (see Figs. 6.1 and 6.2).

1) Front Radiating Window

If the front radiating window is soiled with soot, salt, dust, paint or bird's dropping, radarbeam will be attenuated or reflected and radar performance will be degraded.

Check the radiating window, and if it is soiled, wipe it with a soft cloth wetted with alcohol or water and try to keep it clean all the time.

Never use solvents of gasoline, benzine, trichloroethylene or ketone for cleaning, otherwise the radiant plane will be deteriorated.

2) Scanner Unit Mechanism

(1) Oiling to Gear

Apply grease evenly to the main shaft driving gear and the encoder driving gear by using a spreader or brush. Greasing at short intervals is effective to prevent gears from wear and to extend the service life. Make it a rule to grease them every six months at least.

Use Mobilux 2 of Mobile Oil.

(2) Mounting Legs

Check the Mounting legs and mounting bolts of the scanner unit frame at a certain interval for corrosion and keep them in order. Apply paint to them every six month because painting is the best measure against corrosion.

(3) Motor

Check the brush and commutator contact every 200 operating hours and replace it if the brush extremely wears (a spare is attached). The brush service life is approximately 3,000 hours. Replace the brush when it has worn to the notch at the two-thirds of the total length (see Fig. 6.3).

6

6 – 2

6.2

Safety switch

Fig. 6.1 NKE-1055 Scanner unit (Rear)

Safety switch

Fig. 6.2 NKE-1056 Scanner unit (Rear)

6 – 3

6.2

Notch

(replace it when it has worn to this point

Contact surface with commutator

Carbon brush

Spring

Fig. 6.3 Carbon Brush

6.2.2 Display Unit NCD-3780

Cleaning of CRT Surface

Dusts accumulated on the CRT surface will reduce clarity and darken pictures.

For cleaning, wipe it with a soft cloth (flannel or cotton) wetted with water. Do not wipe it strongly with a dry cloth nor use gasoline or thinner.

CAUTION

When cleaning the CRT, do not wipe it strongly with a dry cloth nor use gasoline or thinner, otherwise it will be damaged or deteriorated.

6

6 – 4

7

COUNTERMEASURES

FOR TROUBLE

AND

ADJUSTMENT

7.1

Function Check ····················································7-1

7.2

Failure Check ·······················································7-8

7.3

Troubleshooting ················································7-10

7.4

Replacement of Major Parts ·····························7-12

7.5

Adjustment and Setting ····································7-17

7.1

Function Check

7.1.1 Function Check

Regularly check the radar and whenever abnormalities being found, investigate the cause of trouble. In checking, pay special attention to the high voltage circuits and take care not to cause any trouble by error or carelessness during the measurement. Take note of the results of check, which would be very effective for inspection in the future.

Conduct the function checks in accordance with Table 7.1 and in the order as specified in the table.

Table 7.1 Function Check List

Equipment to be checked

Scanner

Check item

Receiver’s tuning LED

Criteria

The LED is on during operation.

Pictures on the screen

Sensitivity

Brilliance of CRT

Display unit Various markers

Various numerical indications

Illumination

Magnetron current

Can be controlled correctly.

Refer to subsection 7.1.2.8.

Remark

48 nm range

7.1.2 Testing Functions with Menu

This radar enables to open the diagnosis menu to check functions.

Diagnostic Menu

DIAGNOSTIC MENU

Press an item number key.

0. PREVIOUS MENU

1. MEMORY TEST

2. KEY SWITCH TEST

3. SENSOR TEST

4. LINE TEST

5. ROM VERSION

6. ARPA STATUS

7. ERROR LOGGING

8.

9.

MAG. I.

RUNNING TIME

TX TIME

90 HR

55 HR

To close this menu, Press (SUB MENU) key.

7 – 1

7.1.2.1 Memory Test

This test is used to check the operating status of the built-in memory.

Procedures 1. Press the

SUB

MENU

key.

2. Press the 9 key twice to open the INIT SETTING #2 menu.

Exit

3. Press the 7 key to open the DIAGNOSTIC MENU.

4. Press the 1 key to select "MEMORY TEST".

5. Press the 1 to 6 keys to start checking.

"OK" appears on the normally operated items.

6. Press the

SUB

MENU

key.

Memory Test

MEMORY TEST

0. PREVIOUS MENU

1. SRAM

2. GRAPHIC RAM

3. FLASH ROM

4. ARPA COMMON RAM

5. CARD 1

6. CARD 2

To close this menu, Press (SUB MENU) key.

OK

OK

OK

OK

OK

OK

7.1

7

7 – 2

7.1

7.1.2.2 Key Switch Test

This test is used to check the operating status of each knob/switch.

Procedures 1. Follow procedures 1 to 3 in subsection 7.1.2.1.

The DIAGNOSTIC MENU appears.

2. Press the 2 key to open the KEY SWITCH TEST menu.

3. Press controls or keys according to the menu item to check them.

They normally operate if the numeral displays change. "255" is displayed when the control is turned to the maximum and "0" when to the minimum.

4. Press the 0 key.

Exit 5. Press the

SUB

MENU

key.

Key Switch Test

KEY SWITCH TEST

0. PREVIOUS MENU

KEY

TRACK BALL

VOLUME

SHAFT ENCODER

ROTARY SWITCH

DIPSW1

DIPSW2

X

Y

GAIN

TUNE

STC

FTC

BRILL

EBL

VRM

1

PNK

8

0 0 0 0 0 0 0 0

0 0 0 0 1 0 0 0

To close this menu, Press (SUB MENU) key.

xxxxx

42

38

255

126

0

0

250

0

255

7 – 3

7.1

7.1.2.3 Sensor Test

This test is used to check signals from the scanner unit.

Procedures 1. Follow procedures 1 to 3 in subsection 7.1.2.1.

The DIAGNOSTIC MENU appears.

Exit

2. Press the 3 key to open the SENSOR TEST menu.

"OK" is displayed when the bearing pulses (BP and BZ) are input in the display unit.

3. Press the

SUB

MENU

key.

Sensor Test

SENSOR TEST

0. PREVIOUS MENU

SAFETY SWITCH

BEARING PULSE (BP)

BEARING PULSE (BZ)

ON

OK

OK

To close this menu, Press (SUB MENU) key.

7.1.2.4 Line Test

This test is used to check the communication status with optional equipment.

Procedures 1. Follow procedures 1 to 3 in subsection 7.1.2.1.

The DIAGNOSTIC MENU appears.

Exit

2. Press the 4 key to open the LINE TEST menu.

"ON" appears when communication or connection has been established.

3. Press the

SUB

MENU

key.

Line Test

LINE TEST

0. PREVIOUS MENU

NSK

UART1

UART2

ARPA

ON

ON

OFF

ON

To close this menu, Press (SUB MENU) key.

7 – 4

7

7.1

7.1.2.5 ROM Version

This test is used to check the versions of the software.

Procedures 1. Follow procedures 1 to 3 in subsection 7.1.2.1.

The The DIAGNOSTIC MENU appears.

Exit

2. Press the 5 key to open the ROM VERSION.

The versions of the MAIN CPU, NSK, ARPA CPU and ARPA TD are displayed.

3. Press the

SUB

MENU

key.

ROM Version

ROM VERSION

0. PREVIOUS MENU

MAIN CPU

NSK

ARPA CPU

ARPA TD

V 1.01

V 1.1

V 2.2

V 1.1

To close this menu, Press (SUB MENU) key.

21/09/1998

7 – 5

7.1

7.1.2.6 ARPA Status

This test is used to check the acquiring status of the ARPA. The display is available only when the ARPA

(NCA-840) is installed.

Procedures 1. Follow procedures 1 to 3 in subsection 7.1.2.1.

The DIAGNOSTIC MENU appears.

Exit

2. Press the 6 key to open the ARPA STATUS.

When the ARPA is not installed, "**" appears.

3. Press the

SUB

MENU

key.

ARPA Status

ARPA STATUS

0. PREVIOUS MENU

TRACKING NUMBER

TD INTERRUPT NUMBER

GZ NUMBER x x x

To close this menu, Press (SUB MENU) key.

7.1.2.7 Error Logging

This test is used to display the history of the errors occurred.

Procedures 1. Follow procedures 1 to 3 in subsection 7.1.2.1.

The DIAGNOSTIC MENU appears.

2. Press the 7 key to open the ERROR LOGGING.

Exit 3. Press the

SUB

MENU

key.

Error Logging

ERROR LOGGING

Press an item number key.

0. PREVIOUS MENU xxxxxxx xxxxxxx

To close this menu, Press (SUB MENU) key.

7 – 6

7

7.1

7.1.2.8 Magnetron Current, Running and Transmission Time

This test is used to check the magnetron current by displaying the magnetron current bar.

Procedures 1. Follow procedures 1 to 3 in subsection 7.1.2.1.

The DIAGNOSTIC MENU appears.

The magnetron current bar, the totals of the running and transmission times are displayed.

RANGE

0.125 to 0.75nm

1.5nm

3nm

6 to 96 and 120 nm

10kW

0 to 3 scales

1 to 4 scales

3 to 5 scales

4 to 5 scales

25kW

1 to 3 scales

5 to 8 scales

5 to 8 scales

5 to 8 scales

Exit 2. Press the

SUB

MENU

key.

The running time indicates the time when the power has been turned on and the transmission time indicates the total time when transmission has actually been conducted.

Diagnostic Menu

DIAGNOSTIC MENU

Press an item number key.

0. PREVIOUS MENU

1. MEMORY TEST

2. KEY SWITCH TEST

3. SENSOR TEST

4. LINE TEST

5. ROM VERSION

6. ARPA STATUS

7. ERROR LOGGING

8.

9.

MAG. I.

RUNNING TIME

TX TIME

90 HR

55 HR

To close this menu, Press (SUB MENU) key.

7 – 7

7.2

Failure Check

For semiconductor circuits, most troubles are considered to hardly occur without improper design, insufficient inspection, other external or artificial factors. Causes of most troubles are disconnection of high value resistor by humidity, defective variable resistor and imperfect contacts of buttons and relays.

Since troubles may also be caused by defective parts, improper adjustment (mostly improper adjustment of the tuning) and insufficient service (mostly imperfect contact of cable), further inspections and adjustments will be effective by taking the above into account (refer to Table 7.2 Failure Check List).

Since there must be some cause for fusing, be sure to investigate it even if no failure occurs after replacement.

At the same time, keep in mind that each fuse have prearching time-current characteristics. Table 7.3 shows fuses in use.

Table 7.2 Failure Check List

No.

1

2

3

4

5

6

7

Failure status

No display on CRT

The scanner unit does not rotate.

No radar video appears although the scanner unit rotates (letters and markers are displayed).

The control switch is disabled.

No radar video appears although some noise occurs (letters and markers are displayed).

No letter or marker appears although radar video does.

Poor sensitivity

Probable cause a. Power failure. Check the power LED (on when it normally operates).

b. Fuse F5001 or 5002 (10A each) is fused.

c. Monitor failure. Check that the heater is turned on.

d. CPU control circuit PCB (PC4401) failure.

e. Low ship's power.

a. Fuse F5003 (7A time lag) is fused.

b. Rotation control circuit (I ／ F circuit PCB PC101) failure.

c. Driving motor B101 failure.

d. Scanner safety switch S101 failure.

e. The motor control signal (C2) is disconnected.

a. Receiver failure.

b. Time base circuit PCB (PC4402) failure.

c. CPU control circuit PCB (PC4401) failure.

d. Shaft encoder B102 failure.

a. CPU control circuit PCB (PC4401) failure if it is still disabled even after the power is turned on again.

a. Fuse F5004 (0.5A) is fused.

b. Modulator or magnetron failure.

c. Power failure. Check the modulating high voltage (HV).

d. Time base circuit (PC4402) PCB failure. Check the transmission trigger (TI).

a. CPU control circuit (PC4401) PCB failure.

a. Magnetron deterioration ／ failure.

b. Modulator or pulse width switching failure.

c. Receiver ／ MIC failure.

d. Water leakage from radiating window or wave guide

(soil, ice or snow on the window, or corrosion inside the wave guide).

e. Tuning voltage failure.

f. The pulse width switching signal (PW) is fused.

7

7 – 8

7.2

Table 7.2 (Continued)

No.

8

9

10

11

12

13

14

Failure status

Distorted display

No display appears even after pressing the fixed or variable range marker, electronic cursor or panel lighting key.

The screen returns to the default during operation.

No alarm occurs.

Radar tracking does not function.

a. Low ship's power.

b. CPU control circuit PCB (PC4401) failure.

c. Power (PC5101) failure.

a. CPU control circuit PCB (PC4401) failure.

a. CPU control circuit PCB (PC4401) failure.

b. Time base circuit PCB (PC4402) failure.

c. Low video brilliance.

a. "SYNC" or "STEP" is not properly set on the NSK (PC4201).

The NUP or CUP display cannot be selected.

"FAN" appears on the lower of the screen.

a. FAN failure. (B1)

Probable cause a. Monitor failure or adjustment error.

b. The horizontal (HS) or vertical (VS) synchronous signal is fused.

c. CPU control circuit PCB (PC4401) failure.

a. The marker brilliance is adjusted to the lowest.

(See section “3.2 Preparation”).

b. CPU control circuit PCB (PC4401) failure.

WARNING

In case of fan failure, radar unit will fail.

If fan failure occurs, stop operation at once, you should change the fan.

Table 7.3 List of Fuses in Use

Location

Display unit

Parts No.

Inner

Inner

Inner

NSK

F5004

F1 to F4

Monitor F1

Rated current

0.5A

0.5A PC4201

1.5A PG332

Protection circuit

F5001 to F5002 10A

F5003 7A Time lag

Type

MF60NR-10A

MF61-TS7

MF60NR-0.5A

MF51NN-0.5A

TSC UL 1.5A

7 – 9

7.3

Troubleshooting

When this radar has gotten out of order, ask our sales department or your local distributor for repair.

Refer the following failure causes when inspection or repairing the radar.

1. Imperfect contact of cables between equipment at terminal boards a) Imperfect contact at terminal board b) Improper cable terminal treatment - Earth or contact with other terminal.

c) Disconnection of cable

2. Imperfect contact of connectors inside equipment

The parts listed in Table 7.4 are attached to the radar as the standard spare parts.

Table 7.4 Spare Parts 6ZXRD00193

No.

Parts Name Type/Code Shape (Unit : mm) In use Spare Parts No.

1 Fuse

MF60NR-10A

(5ZFAD00018) 30

ø 6.4

2

Location

6

F5001 to

F5002

Inner display unit

2 Fuse

MF60NR-0.5A

(5ZFAD00013) 30

ø 6.4

1 3 F5004

Inner display unit

3 Fuse

MF61-TS7

(5ZFAD00447) 32

ø 6.4

1 3 F5003

Inner display unit

4

5

Fuse

Fuse

MF51NN-0.5A

(5ZFAD00041)

TSC UL 1.5A

(5ZFCA00017)

6

Carbon

Brush

S00152-5C-70

(BRXP00918)

6

11

7

Carbon

Brush

54511-03

(BRXR05082)

8

20

ø 5.2

4 12 F1 to F4

Display unit

NSK circuit

20

36

ø 5.2

1 3 F1

1

1

2

2

Display unit monitor power supply circuit

Inner scanner unit (10 kW)

Inner scanner unit (25 kW)

7

7 – 10

7.3

Parts Name

Table 7.5 Special Parts

Type Maker Location Parts No.

V201 (10 kW) Magnetron

V201 (25 kW) Magnetron

A101

A103

A102

Circulator

Diode limiter

Pin attenuator

MSF1425B New JRC

M1437 (A) New JRC

FCX68

NJS6928

NJS6926

Toshiba

New JRC

New JRC

Scanner unit

Scanner unit

Scanner unit

Scanner unit

Scanner unit

Code

5VMAA00051

5VMAA00074

5AJAA00004

5EZAA00019

5ENAC00019

Location

Scanner unir (10 kW)

Scanner unit (25 kW)

Scanner unit (10 kW)

Scanner unit (25 kW)

Scanner unit

Scanner unit (25 kW)

Scanner unit

Scanner unit (10 kW)

Display unit

Display unit

Display unit

Display unit

Display unit

Display unit

Display unit

Display unit

Display unit

Table 7.6 Circuit Blocks for Repair

Circuit block name

Motor with gear

Motor with gear

Modulator

Modulator

Receiver

Interface circuit

Motor control circuit

Modulator circuit

Power supply unit

Terminal board circuit

NSK circuit

CPU control circuit

Time base circuit

Panel circuit-1

Panel circuit-2

Panel circuit-3

Mother board circuit

Display unit

Type

MPEM30076

MPEM30077

NMA-469A

Remark

NMA-470-1

Including PC201 (CME-

261A)

Including PC210 (CPA-

209) and excluding magnetron.

NRG-210A PC301 (CAE-344-3)

CMH-1562A PC101

CBP-143

CME-261A

NBD-708

PC101

PC201

Including PC5101

(CBD-1378)

CQD-1546

CMJ-304C

PC4301

PC4201

CMC-1012B PC4401

CED-42B PC4402

CCK-787

CCK-789

CCK-790E

CFQ-8682

Monitor unit

PC4501

PC4502

PC4503

PC4101

7WZRD0038

7 – 11

7.4

Replacement of Major Parts

WARNING

Before replacing parts, be sure to turn off the main power supply, otherwise you will get an electric shock and replaced parts will get out of order.

Before replacing the magnetron, discharge the high voltage circuit, otherwise you will get an electric shock.

When bringing your hand(s) close to the magnetron, remove your wrist watch, otherwise your wrist watch will break because the magnetron is a strong magnet.

Let two or more workers replace the CRT.

It is heavy, dropping it may injure you.

When removing wiring of the high voltage pack from the CRT, never touch the core wire

(metal parts) of the CRT anode cap with your bare hands, otherwise you will get an electric shock.

Attention

●

When removing wiring, touch the terminal with the metal part of a screwdriver while keeping the terminal in contact with the frame.

[Replacement of Magnetron V201 (10kW : NKE-1055)]

Replace the magnetron as follows:

(1) Loosen the four A scanner unit screws (see Fig. 7.1).

(2) Lift the scanner unit to open the pedestal (see Fig. 7.1).

(3) Loosen the four B screws fixing the transceiver unit (see Fig. 7.1).

(4) Move the transceiver upward to remove it from the pedestal.

(5) Remove the four C screws and loosen the two D screws to remove the sender from the transceiver (Fig.

7.2).

(6) Loosen the five E sender screws to remove the sender cover (see Fig. 7.2).

(7) Loosen the four F screws and remove the pulse transformer cover (see Fig. 7.4).

(8) Remove the cable G between the pulse transformer and magnetron from the transformer side using a soldering iron (see Fig. 7.4).

(9) Remove the four H screws fixing the magnetron, the seven I screws fixing the PCB and the four J screws fixing the IC to remove the magnetron (see Fig. 7.3).

(10) For remounting the magnetron, follow the opposite procedure.

In this case, properly connect the lead wires.

7

7 – 12

7.4

B

A A

B

Fig. 7.1 Internal View of 10kW Scanner Unit NKE-1055

E

C

D E

Fig. 7.2 Transcriver Unit of 10kW Scanner Unit NKE-1055

7 – 13

C

I I J I H

7.4

I J I H

Fig. 7.3 Internal View of Sender of 10kW Scanner Unit NKE-1055

7

F

F

G

Fig. 7.4 Pulse Transformer of 10kW Scanner Unit NKE-1055

7 – 14

7.4

[Replacement of Magnetron V201 (25kW : NKE-1056)]

Replace the magnetron as follows:

(1) Loosen the four A screws from the cover on the left side (when the scanner unit is viewed from the cable ground) to remove the cover (see Fig. 7.5).

(2) Remove the three modulator cover B screws and loosen the seven C screws to remove the cover (see

Fig. 7.6).

(3) Make sure that the modulating high voltage circuit has been discharged before removing the magnetron socket (see Fig. 7.7).

(4) Remove the six D screws fixing the magnetron to remove the magnetron (see Fig. 7.7).

(5) For remounting the magnetron, follow the opposite procedure.

In this case, properly connect the lead wires.

Handling of magnetron which had been stored for a long time

Since the magnetron which had been stored for a long time may cause spark and become unstable after you start using it, age it as follows:

(1) Make the cathode pre-heating time longer than usual (for 20 to 30 minutes in the standby mode).

(2) Start the operation from the short pulse range and gradually change it to the long pulse range. If the operation becomes unstable during the process, return it to the standby mode immediately. Leave it as it is for 5 to 10 minutes and operate it again.

(3) Set the range to 24nm or more, and put the radar into the transmission mode for about 15 minutes and adjust the tuning.

(4) Adjust RV1 in the receiver so that the [TUNE] bar indicator of the display unit reaches 10 without saturation.

A

A

Fig. 7.5 Internal View of 25kW Scanner Unit NKE-1056

7 – 15

C

C

C

B

Fig. 7.6 Internal View of Modulator of 25kW Scanner Unit NKE-1056

D

D

7.4

7

D

Fig. 7.7 Internal View of Modulator of 25kW Scanner Unit NKE-1056

[Replacement of Diode Limiter (A102)]

Remove the four screws fixing both the receiver and the PIN attenuator. Remove the four screws fixing the diode limiter and another four screws fixing both the diode limiter and the PIN attenuator to take off the diode limiter. When installing the new diode limiter, pay attention to its direction so that the arrow faces in the direction of the receiver.

[Replacement of PIN Attenuator (A103)]

Remove the four screws fixing the PIN attenuator in the same way as for replacing the diode limiter and remove the PIN attenuator.

7 – 16

7.5

Adjustment and Setting

Although each component of the radar has completely been adjusted in the factory, the adjustments as described in subsection 7.5.1 to 7.5.3 are required after installation. If you'll use the rectifier unit (NBA-

3308).

See subsection “7.5.8 Setting the Rectifier Unit (NBA-3308)”.

7.5.1 NSK Unit Adjustment

The NSK unit of the radar can be applied to almost all types of gyrocompasses just by changing the settings of keys (step motor type of 24VDC to 100VDC and synchro motor type with primary exciting voltages of

50VAC to 115VAC).

Before turning the power on, follow the procedures below to set switches S1, S2 and S5, and jumper JP1 on the NSK circuit (PC4201) to make them suitable to the type of the gyrocompass.

Since the gyro selection keys on the NSK circuit is set to the 360X synchrogyro before shipment, adjust the keys as follows to suit it to the gyrocompass fitted on the ship. For details, see “Appendix 12 Setting Table of the Gyro Compass and Gyro Select Switches”.

(1) Before turning on the system, set the keys and jumper pin on the NSK unit (PC4201) as follows:

S1 : Select switch to [OFF].

S2 : Gyrocompasses output stepper or synchro signal. So, be sure to check the type of the gyrocompass fitted on the ship before setting S2.

Synchronizing signal ········ Set S2 to the [SYNC] position.

Stepper signal ··················· Set S2 to the [STEP] position.

S5 : Set S5 to suite the applicable gyro in accordance with the S5 setting table.

S5-1 : Type

Synchronizing signal ····················· [OFF]

Stepper signal ································ [ON]

S5-2, -3 : Gyro ratio

S5-2

S5-3

360X

OFF

OFF

180X

OFF

ON

90X

ON

OFF

36X

ON

ON

7 – 17

7.5

S5-4 : Gyro direction

Normal (clockwise) ······················· [OFF]

Reverse (counterclockwise) ·········· [ON]

S5-5 : Log type

Pulse signal ··································· [OFF]

Synchronizing signal ····················· [ON]

S5-6 : Not used

S5-7, -8 : Log ratio

S5-7

S5-8

800

Pulses/nm (Pulse signal)

400 200

Rotations/nm (Synchro signal)

360X 180X 90X

OFF

OFF

OFF

ON

ON

OFF

100

36X

ON

ON

S6 : Log test

Select the switch to [NORML] position.

S7 : BSH (IMO) spec

Select the switch to [NORML] position.

JP1 : Gyro type

Synchro signal ... Select the [SYNC] position.

Stepper signal ... Select the [STEP] position.

(2) Connect the gyro signal and log signal cables to the NSK circuit (PC4201).

(3) Set S1 to [ON].

* If radar echoes and the own ship's true bearing indications are displayed in reverse direction after the power is turned on, set S5-4 to [ON].

7

7 – 18

7.5

Table 7.7 Gyro Log Selection Switches (DIP switch S5)

4 5 6

SYNC

STEP

360X

180X

90X

36X

1

0

1

2

0

0

1

1

3

Gyrational direction

(DIRECTION)

Normal (NOR)

Reverse (REV)

Type

PULSE

SYNCRO

0

1

0

1

0

1

0

1

7

0

Pulse number

(PULSES/NM)

800P/360X

400P/180X

200P/90X

100P/30X

1

1

0

0

8

0

1

0

1

7 – 19

7.5

7.5.2 Adjustment and Setting at Installation

7.5.2.1 Adjusting Tuning

Procedures 1. Set the range at 24nm or more to adjust the [TUNE] control at the center.

2. Press the

SUB

MENU

key to open the SUB MENU.

3. Press the 9 key twice to open the INIT SETTING #2 menu.

4. Press the 3 key to select "TUNE ADJUSTMENT".

5. Press the ENT key to clear the menu and display the radar screen.

“Adjusting TUNE” will be displayed in the lower right corner of the screen.

6. Press the

RANGE

or

RANGE

key to make the turning indication of the lower left of the screen the longest and press the ENT key.

Init setting #2

INIT SETTING #2

Press an item number key.

0. PREVIOUS MENU

1. BEARING ADJUSTMENT

2. RANGE ADJUSTMENT

3. TUNE ADJUSTMENT

4. SETTING OF PRF

5. PM ADJUSTMENT

6.

7. DIAGNOSTIC MENU

8. MAINTENANCE MENU

9. NEXT MENU

To close this menu, Press (SUB MENU) key.

0

7

7 – 20

7.5

7.5.2.2 Adjusting Bearing

Adjust the system so that the target measured by the ship compass corresponds to the bearing of the video displayed on the radar PPI screen.

Procedures 1. Press the key to select the HUP display.

2. Measure the bearing of an appropriate target (e.g. stationary ship, break water, buoy) against the bow using the ship compass (a target at 25˚ is assumed here as an example) .

3. Press the

SUB

MENU

key to open the SUB MENU.

4. Press the 9 key twice to open the INIT SETTING #2 menu.

5. Press the 1 key to select "BEARING ADJUSTMENT".

6. Press the ENT key to clear the menu and display the radar screen.

“Adjusting BEARING” will be displayed in the lower right corner of the screen.

7. After EBL1 appears, turn the EBL control to adjust EBL1 to the target selected in procedure 2 and press the ENT key.

(adjust the bearing to 25˚ by following the example in procedure 2)

8. If the bearing does not completely match, repeat procedure 3 and after.

Init setting #2

INIT SETTING #2

Press an item number key.

0. PREVIOUS MENU

1. BEARING ADJUSTMENT

2. RANGE ADJUSTMENT

3. TUNE ADJUSTMENT

4. SETTING OF PRF

5. PM ADJUSTMENT

6.

7. DIAGNOSTIC MENU

8. MAINTENANCE MENU

9. NEXT MENU

To close this menu, Press (SUB MENU) key.

0

7 – 21

7.5

7.5.2.3 Adjusting Range

Adjust the range of the target on the screen so that it is properly displayed.

Procedures 1. Find a target whose range is known on the PPI screen.

2. Press the

SUB

MENU

key to open the SUB MENU.

3. Press the 9 key twice to open the INIT SETTING #2 menu.

4. Press the 2 key to select "RANGE ADJUSTMENT".

5. Press the ENT key to clear the menu and display the radar screen.

“Adjusting RANGE” will be displayed in the lower right corner of the screen.

6. Press the

RANGE

or

RANGE

to adjust the range and press the ENT key.

7. If the range does not completely match, repeat procedure 3 and after.

Init setting #2

INIT SETTING #2

Press an item number key.

0. PREVIOUS MENU

1. BEARING ADJUSTMENT

2. RANGE ADJUSTMENT

3. TUNE ADJUSTMENT

4. SETTING OF PRF

5. PM ADJUSTMENT

6.

7. DIAGNOSTIC MENU

8. MAINTENANCE MENU

9. NEXT MENU

To close this menu, Press (SUB MENU) key.

0

7

7 – 22

7.5

7.5.2.4 Setting Antenna Height

Adjust by the radar scanner unit height. Be careful to select scanner unit antenna height as the selection affects the effect of STC control.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key twice to open the INIT SETTING #2 menu.

3. Press the 8 key to open the MAINTENANCE MENU.

Exit

4. Press the 1 key to select "ANTENNA HEIGHT".

5. Press the 1 key to select "UP to 5m", "5 - 10m", "10 - 20m" or "MORE

20m".

6. Press the ENT key to confirm the setting.

7. Press the

SUB

MENU

key.

Maintenance Menu

MAINTENANCE MENU

Press an item number key.

0. PREVIOUS MENU

1. ANTENNA HEIGHT

2. SERIAL INPUT DEVICE

3. ANTENNA SWITCH

4. PARTIAL MASTER RESET

5. ALL MASTER RESET

6. INTERNAL SETTING to CARD 2

7. CARD 2 to INTERNAL SETTING

8. MEMOLIZE USER SETTING

UP to 5m 5–10m

2AXIS LOG

10–20m

HDG SENSOR

TRANSFER DISCARD

9. RESTORE USER SETTING

MORE 20m

RS232C

To close this menu, Press (SUB MENU) key.

7 – 23

7.5

7.5.3 Various Setting

7.5.3.1 Setting Own Ship Course Equipment

This function is used to select the equipment for inputting the own ship course. If "HDG SENSOR" is selected, you 'll see subsection “7.5.3.2 Setting HDG SENSOR Adjustment”.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key to open the INIT SETTING #1 menu.

3. Press the 1 key to select "COURSE EQUIPMENT".

Exit

4. Press the 1 key to select "GYRO" or "HDG SENSOR".

5. Press the ENT key to confirm the setting.

6. Press the

SUB

MENU

key.

Init setting #1

INIT SETTING #1

Press an item number key.

0. PREVIOUS MENU

1. COURSE EQUIPMENT

2. SPEED EQUIPMENT

3. MANUAL SPEED

4. FUNCTION MENU

5. BUZZER VOLUME

6. DRIFT SET

DRIFT

7. GPS INITIALIZE MENU

8. SETTING DGPS ／ STATUS

9. NEXT MENU

GYRO

MANUAL xx. x KT

OFF x .x

° x. x KT

To close this menu, Press (SUB MENU) key.

HDG SENSOR

LOG GPS

LOW MIDDLE

2AXIS

HIGH

7

7 – 24

7.5

7.5.3.2 Setting HDG SENSOR Adjustment

As HDG SENSOR is selected in Own Ship Course equipment, set HDG SENSOR adjustment as follows.

• In case of HDG or HDT data send from HDG SENSOR

As output data from HDG SENSOR is adjusted by HDG SENSOR, the setting of radar menu is OFF.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key four times to open the INIT SETTING #4 menu.

3. Press the 1 key to select "HDG SENSOR CORRECTION".

Exit

4. Press the 1 key to select "OFF".

5. Press the ENT key to confirm the setting.

6. Press the

SUB

MENU

key.

• In case of HDM data send from HDG SENSOR

As output data fro HDG SENSOR isn't adjusted by HDG SENSOR, enter adjust data written the chart.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key four times to open the INIT SETTING #4 menu.

3. Press the 1 key to select "ON" on the "HDG SENSOR CORRECTION", and press the ENT key to confirm the setting.

4. Press the 2 key to select "CORRECT VALUE", and enter adjust

Exit data written on the chart by using numeric key ( 0 to 9 ).

5. Press the ENT key to confirm the setting.

6. Press the

SUB

MENU

key.

7 – 25

Init setting #4

INIT SETTING #4

Press an item number key.

0. PREVIOUS MENU

4.

5.

6.

7.

8.

9.

1. HDG SENSOR CORRECTION

2. CORRECT VALUE

3.

To close this menu, Press (SUB MENU) key.

OFF

E 0.0

°

ON

7.5

7

7 – 26

7.5

7.5.3.3 Setting Own Ship Speed Equipment

This function is used to select the equipment for inputting the own ship course.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key to open the INIT SETTING #1 menu.

3. Press the 2 key to select "SPEED EQUIPMENT".

Exit

4. Press the 2 key to select "MANUAL" or "LOG", "GPS" or "2-AXIS".

5. Press the ENT key to confirm the setting.

6. Press the

SUB

MENU

key.

Init setting #1

INIT SETTING #1

Press an item number key.

0. PREVIOUS MENU

1. COURSE EQUIPMENT

2. SPEED EQUIPMENT

3. MANUAL SPEED

4. FUNCTION MENU

5. BUZZER VOLUME

6. DRIFT SET

DRIFT

7. GPS INITIALIZE MENU

8. SETTING DGPS ／ STATUS

9. NEXT MENU

GYRO

MANUAL xx. x KT

OFF x .x

° x. x KT

To close this menu, Press (SUB MENU) key.

HDG SENSOR

LOG GPS

LOW MIDDLE

2AXIS

HIGH

7 – 27

7.5.3.4 Setting Screen Mode

Set the size of the area for displaying the radar video.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 3 key to open the RADAR #3 menu.

3. Press the 1 key to select "RADAR DISPLAY AREA".

Exit

4. Press the 1 key to select "STANDARD" or "WIDE".

5. Press the ENT key to confirm the setting.

6. Press the

SUB

MENU

key.

Radar #3

RADAR #3

Press an item number key.

0. PREVIOUS MENU

1. RADAR DISPLAY AREA

2. ECHO POWER

3. EPA MENU

4. XMIT REPETITION FREQUENCY

5.

6.

7.

8.

9. PERFORMANCE MONITOR

To close this menu, Press (SUB MENU) key.

STANDARD

100 50 25

WIDE

10 %

NORMAL HIPOWER ECONOMY

Standard screen Wide screen

7.5

7

7 – 28

7.5

7.5.3.5 Setting Fishing Boat ／ Merchant Ship Mode

To set the fishing boat mode

• In the fishing boat mode, the

F EBL

,

VECT

TRACK

,

VECT–

DEST

and

VECT+

mark keys are enabled.

• It is a convenience to use plotter function by above four keys.

• Destination and other ship track can be operated also from the menu.

Procedures 1. Press the

SUB

MENU

, 9 and display the INIT SETTING #3 menu.

9 and 9 keys in this order to

2. Press the 7 key to select "FISHING BOAT" and press the ENT key.

3. Confirm that the fishing ship mode has been selected in procedure 2 and turn the power on again.

To set the merchant ship mode

• In the merchant ship mode, the

F EBL

,

VECT

TRACK

,

VECT–

DEST

and

VECT+

keys are enabled.

• It is a convenience to use ATA function by above four keys.

Procedures 1. Press the

SUB

MENU

, 9 and display the INIT SETTING #3 menu.

9 and 9 keys in this order to

2. Press the

7

key to select "MERCHANT" and press the ENT key.

3. Confirm that the merchant ship mode has been selected in procedure 2 and turn the power on again.

7 – 29

INIT SETTING #3

INIT SETTING #3

Press an item number key.

0. PREVIOUS MENU

1. SHIFT COAST LINE #1

(RADAR PICTURE)

2. SHIFT COAST LINE #2

3. LAT ／ LON CORRECTION

4. CHART CENTER POSITION

5. DATA INPUT FORMAT

6. DATA ／ TIME

7. SHIP'S TYPE

8.

9. NEXT MENU

To close this menu, Press (SUB MENU) key.

SETTING DELETE

N 0.000'

E 0.000'

N 0.000'

E 0.000'

N 35˚00.000'

E 135˚00.000'

183

OFF

FISHING BOAT

JRC

UTC

180

LOCAL

MERCHANT

7.5

7

7 – 30

7.5

7.5.3.6 Setting True Bearing

This function is used to set the system so that the master gyro indication corresponds to that of the radar.

You don't need to set that again after power on unless you turn off the power of the master gyro once you set that, because the inner electronic circuit is supplied the power from the gyro.

After turning on the system

When you turn on the system for the first time after installation, or when the master gyro is turned off, the alarm of gyro setting appear on the bottom of screen to prompt to enter a number. At this time, press the

RANGE

or

RANGE

key according to the bearing of the compass, and press the ENT key.

And, after pressing the ENT key, you can also enter this with numeric keys ( 0 to 9 ) as the following procedures.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 2 key to open the RADAR #2 menu.

Exit

3. Press the 1 key to select "GYRO".

4. Press the ENT or 1 key to set the system in the numerical value entry mode.

5. Press numeric keys ( 0 to 9 ) according to the bearing of the compass and press the ENT key (359.9˚ max.).

6. Press the

SUB

MENU

key.

Radar #2

RADAR #2

Press an item number key.

0. PREVIOUS MANU

1. GYRO

2. EBL BEARING

3. PARALLEL INDEX LINE

4.

5. CURSOR MENU

6. STERN FLASH

7. KM ／ NM VRM1

8. KM ／ NM VRM2

9.

0.0

OFF

KM

KM

°

TRUE

OFF

To close this menu, Press (SUB MENU) key.

RELATIVE

ON

ON

NM

NM

7 – 31

7.5

Setting the true bearing using system

When you adjust true bearing using system, press the key for 2 seconds. The number entering window for gyro setting appear on the bottom of screen.

At this time, press the

RANGE

or

RANGE

key according to the bearing of the compass, and press the

ENT key.

7

7 – 32

7.5

7.5.3.7 Setting Ship Speed

This function is used to manually set the ship speed.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key to open the INIT SETTING #1 menu.

Exit

3. Press the 3 key to select "MANUAL SPEED".

4. Press the ENT or 3 key to set the system in the numerical value entry mode.

5. Set the speed using numeric keys ( 0 to 9 ) and press the ENT key (99.9 max.)

6. Press the

SUB

MENU

key.

After data is entered, the following letters appear on the top of the screen.

Entered by GPS: GPS

Entered by DGPS: DGPS

Entered by Loran: LOR

Entered by other: NMEA Talker ID is displayed. Ask the manufacturer for the ID

(see page 7-38).

Init setting #1

INIT SETTING #1

Press an item number key.

0. PREVIOUS MENU

1. COURSE EQUIPMENT

2. SPEED EQUIPMENT

3. MANUAL SPEED

4. FUNCTION MENU

5. BUZZER VOLUME

6. DRIFT SET

DRIFT

7. GPS INITIALIZE MENU

8. SETTING DGPS ／ STATUS

9. NEXT MENU

GYRO

MANUAL xx. x KT

OFF x .x

° x. x KT

To close this menu, Press (SUB MENU) key.

HDG SENSOR

LOG GPS

LOW MIDDLE

2AXIS

HIGH

7 – 33

7.5

7.5.3.8 Setting Drift

This function is used to manually set the drift.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key to open the INIT SETTING #1 menu.

3. Press the 6 key to select "DRIFT".

Exit

4. Press the ENT or 6 key to set the system in the numerical value entry mode.

5. Set the direction of the drift using numeric keys ( 0 to 9 ) and press the ENT key.

6. Set the speed of the drift using numeric keys ( 0 to 9 ) and press the ENT key (9.9 max.).

7. Press the

SUB

MENU

key.

7

7 – 34

7.5

7.5.3.9 Setting PRF

This function is used to change the repetition frequency to reduce mutual interference.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key twice to open the INIT SETTING #2 menu.

3. Press the 4 key twice to select "SETTING OF PRF".

BRILL

4. Press the

RANGE

or

RANGE

or key to select number. (0-39)

Exit

5. Press the ENT key to confirm the setting.

6. Press the

SUB

MENU

key.

Init setting #2

INIT SETTING #2

Press an item number key.

0. PREVIOUS MENU

1. BEARING ADJUSTMENT

2. RANGE ADJUSTMENT

3. TUNE ADJUSTMENT

4. SETTING OF PRF

5. PM ADJUSTMENT

6.

7. DIAGNOSTIC MENU

8. MAINTENANCE MENU

9. NEXT MENU

To close this menu, Press (SUB MENU) key.

0

Note

●

By pushing the [BRILL] control the pulse repetition frequency is directly changed without opening the

SUB MENU.

7 – 35

7.5

7.5.3.10 Setting Transmission Repetition Frequency

• Select one of three transmission repetition frequency types.

• The transmission repetition frequency relates to the sensitivity and power consumption (life span of magnetron).

• When the transmission repetition frequency is high, the sensitivity improves, however, the power consumption also increases, reducing the life span of the magnetron.

• When the transmission repetition frequency is low, the power consumption decreases, increasing the magnetron life span, however, the sensitivity deteriorates.

• The radar trails reduction processing demonstrates the effect when the transmission repetition frequency is "ECONOMY".

NORMAL : Balanced setting for the sensitivity and the life span of the magnetron.

HIPOWER : Hipower setting; use for detecting small targets.

However, the life span of the magnetron is reduced.

ECONOMY : Economy setting. The maximum life span of the magnetron can be increased.

However, the sensitivity deteriorates slightly.

Use this mode at radar trail fine line processing.

When the fales echoes appear by anomalous propagation, using this mode reduces those fales echoes.

See section “5.4 [V] Anomalous Propagation”.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 3 key to open the RADAR #3 menu.

3. Press the 4 key to select "XMIT REPETITION FREQUENCY".

Exit

4. Press the 4 key to select "NORMAL", "HIPOWER" or "ECONOMY".

5. Press the ENT key.

6. Press the

SUB

MENU

key.

7

7 – 36

7.5

7.5.3.11 Connecting Navigation Equipment

This function is used to connect and set the GPS.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key three times to open the INIT SETTING #3 menu.

3. Press the 5 key to select "DATA INPUT FORMAT".

Exit

4. Press the 5 key several times to select either "183", "JRC" or "180".

5. Press the ENT key to confirm the setting.

6. Press the

SUB

MENU

key.

When "183" is selected, the talker ID is displayed on the bottom of the screen in the plot mode after data is received from the navigation system. Ask the navigation system manufacturer for the ID.

INIT SETTING #3

INIT SETTING #3

Press an item number key.

0. PREVIOUS MENU

1. SHIFT COAST LINE #1

(RADAR PICTURE)

2. SHIFT COAST LINE #2

3. LAT

4. CHART CENTER POSITION

5. DATA INPUT FORMAT

6. DATA

7. SHIP'S TYPE

8.

／ LON CORRECTION

／ TIME

9. NEXT MENU

SETTING DELETE

N 0.000'

E 0.000'

N 0.000'

E 0.000'

N 35˚00.000'

E 135˚00.000'

183

OFF

FISHING BOAT

JRC

UTC

To close this menu, Press (SUB MENU) key.

180

LOCAL

MERCHANT

7 – 37

Talker Identifier Mnemonics

Talker device

Autopilot:

Communication:

Identifier general magnetic digital selective calling (DSC) data receiver satelite radio-telephone (MF/HF) radio-telephone (VHF) scanning receiver

DECCA navigator

Direction finder

Electronic chart display and information system (ECDIS)

Emergency position indicating radio beacon (EPIRB)

Engine room monitoring systems

Global positioning system (GPS)

Heading sensor: compass, magnetic gyro, north seeking gyro, non-north seeking

Integrated instrumentation

Integrated navigation

LORAN: LORAN-A

LORAN-C

OMEGA navigation system

Proprietary code

Radar and/or ARPA

Sounder, depth

Electronic positioning system, other/general

Sounder, scanning

Turn rate indicator

TRANSIT navigation system

Velocity sensor: Doppler, other/general speed log, water, magnetic speed log, water, mechanical

Transducer

Timekeepers, time/date: atomic clock chronometer quarts radio update

Weather instruments

7 – 38

7.5

YX

ZA

ZC

ZQ

ZV

WI

SS

TI

TR

VD

VM

VW

LC

OM

P

RA

SD

SN

HC

HE

HN

II

IN

LA

AG

AP

CD

CR

CS

CT

CV

CX

DE

DF

EC

EP

ER

GP

7

7.5

7.5.4 GPS Initial Setting

／

Receiving Status

7.5.4.1 GPS Initial Setting

Set the GPS receiver at the default values. Although GPS receiver starts measuring without setting the default values, it may take more than 10 minutes to start receiving after installation.

• Items to be set

Own ship position:

Exclusion satellite:

Geodetic system:

Antenna height:

Fixed mode:

DOP level:

Average position:

Approximate latitude and longitude (in minute) work sufficiently.

Using a disabled satellite may deteriorate the accuracy. The disabled satellite whose number has been input cannot be used for measurement.

The own ship position and the coastal line may shift if the geodetic system in the radar is different from that of the coastal line ROM card in use. Enter the appropriate geodetic system number described on page 7-41. The number for

Japan is 02.

Enter the height from the sea surface to the antenna.

Since the antenna height is constant in the case of a ship, 2D (2 dimensional) measurement is more stable.

In order to use accurate measurement results only, select "UP to 10" or "UP to

5".

Select "LONG" to reduce the position deviation, which delays the response.

Select "SHORT" to improve the response, which increases the deviation.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key to open the INIT SETTING #1 menu.

3. Press the

7

key to open the INITIALIZE GPS ／ GPS STATUS menu.

4. Press the numeric key ( 0 to 9 ) select an appropriate GPS initial setting item, and press the numeric key ( 0 to 9 )to enter the setting.

5. In order to change the contents of it, press the same numeric key ( 0 to 9 ).

In order to enter a numerical value, press the same numeric key ( 0 to 9 ).

6. After all setting is completed, press the 8 key to select "SEND

DATA".

7 – 39

7.5

Exit

7. Press the 8 key to wait to send data.

8. Press the ENT key to transmit the settings to the sensor.

• After transmission the display for indicating that transmission is completed appears.

• If transmission fails, the display for indicating that transmission error occurs appears.

In this case, check the sensor and cales.

9. Press the

SUB

MENU

key.

INITIALIZE GPS ／ GPS STATUS

Press an item number key.

0. PREVIOUS MENU

1. POSITION

2. EXCLUSION SAT

3. GEODETIC

4. ANTENNA HEIGHT

5. FIX MODE

6. DOP LEVEL

7. POSN AVERAGE

8. SEND DATA

9.

N xx

°

xx. xxx'

E xxx

°

xx. xxx' x x x x x x xx

(xxxxxxxxxxx) xxx M

2D

UP to 5

3D AUTO

UP to 10 UP to 20

LONG MIDDLE SHORT

7

GPS STATUS

RCV SAT

FIX

AZIMUTH

ELEVATE

LEVEL

STATUS

GPS RCV TIME-––:––

N xx

°

xx. xxx' E xxx

°

xx. xxx' xx ALT xxxxxM DOP xx

31

USE

354

65

52

D

15

USE

202

47

53

D

To close this menu, Press (SUB MENU) key.

28

–

306

23

00

T

22

–

126

15

00

S

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

7 – 40

7.5

Geodetic System List

00 = WGS-84

01 = WGS-72

02 = Japan

03 = North American 1927 (U.S.)

04 = North American 1927 (Canada & Alaska)

05 = European 1950 (Europe)

06 = Australian geodetic 1966 (Australia)

07 = Ordnance Survey of Great Britain (England)

08 = NAD-83

11 = ADINDAN (Ethiopia & Sudan)

12 = ARC 1950 (Botswana)

13 = AUSTRALIAN GEODETIC 1984 (Australia)

14 = BERMUDA 1957 (the Bermudas)

15 = BOGOTA OBSERVATORY (Columbia)

16 = CAMPO INCHAUSPE (Argentine)

17 = CHATHAM 1971 (Chatham Island)

18 = CHUA ASTRO (Paraguay)

19 = CORREGO ALEGRE (Brazil)

20 = DJAKARTA (VATAVIA) (Sumatra)

21 = EUROPEAN 1979 (Europe)

22 = GEODETIC DATUM 1949 (New Zealand)

23 = GUAM 1963 (Guam)

24 = HAYFORD 1910 (Finland)

25 = HJORSEY 1955 (Iceland)

26 = INDIAN (India & Nepal)

27 = IRELAND 1965 (Ireland)

28 = KERTAU 1948 (West Malaysia)

29 = L.C.5 ASTRO (Cayman Black Island)

30 = LIBERIA 1964 (Liberia)

31 = LUZON (Philippines)

32 = MERCHICH (Morocco)

33 = MINNA (Cameroon)

34 = NAHRWAN (Oman)

35 = NAPARIMA, BWI (Trinidad and Tobago)

36 = OLD EGYPTIAN (Egypt)

37 = OLD HAWAIIAN (the Hawaii Islands)

38 = PICO DELAS NIEVES (the Canary Islands)

39 = PROVISIONAL SOUTH AMERICAN 1956 (South America)

40 = PROVISIONAL SOUTH CHILEAN 1963 (South Chile)

7 – 41

41 = PUERTO RICO (Puerto Rico & Virgin Island)

42 = QOMOQ (South Greenland)

43 = RT90 (Sweden)

44 = SANTA BRAZ (San Miguel & Santa Maria Island)

45 = SOUTH AMERICAN 1969 (South America)

46 = SOUTHWEST BASE (Faial, Graciosa, Pico, Sao Jorge & Terceria Island)

47 = TIMBALAI 1948 (Brunei, East Malaysia)

7.5

7

7 – 42

7.5

7.5.4.2 Checking GPS Receiving Status

Check the GPS receiving status.

• Item

Own ship position:

Built-in GPS time:

Displays the longitude and latitude of the own ship after measurement.

Displays the universal time measured by the GPS receiver.

Elevation:

DOP:

Displays the elevation of the own ship. When "2D" is selected for the fixed mode, however, the antenna height input as the default is displayed.

Displays the accuracy of the measurement results. GPS letters blink when it is

20 or lower, indicating a poor accuracy.

Receiving satellite: Displays the satellite number currently available for measurement.

Azimuth and elevation: Displays the azimuth and elevation angle of the receiving satellite.

Signal level: Displays the signal level of the receiving satellite. The signal with an intensity

Receiving status: of 20 or lower may not be used for measurement.

Search = Status when the satellite is being searched.

Tracking = Status when the satellite is being tracked.

Demodulation = Status when the data from the satellite is being demodulated.

Use = Status when the satellite is being used for measurement.

• The GPS receiving status is displayed only when a sensor-type GPS receiver such as JLR-4310 is connected.

It is not displayed when an external navigation system is used.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key to open the INIT SETTING #1 menu.

Exit

3. Press the 7 key to open the INITIALIZE GPS/GPS STATUS menu.

The GPS receiving status appears.

4. Press the

SUB

MENU

key.

7 – 43

INITIALIZE GPS ／ GPS STATUS

Press an item number key.

0. PREVIOUS MENU

1. POSITION

2. EXCLUSION SAT

3. GEODETIC

4. ANTENNA HEIGHT

5. FIX MODE

6. DOP LEVEL

7. POSN AVERAGE

8. SEND DATA

9.

N xx

°

xx. xxx'

E xxx

°

xx. xxx' x x x x x x xx

(xxxxxxxxxxx) xxx M

2D

UP to 5

LONG

3D AUTO

UP to 10

MIDDLE

UP to 20

SHORT

GPS STATUS

RCV SAT

FIX

AZIMUTH

ELEVATE

LEVEL

STATUS

GPS RCV TIME-––:––

N xx

°

xx. xxx' E xxx

°

xx. xxx' xx ALT xxxxxM DOP xx

31

USE

354

65

52

D

15

USE

202

47

53

D

To close this menu, Press (SUB MENU) key.

28

–

306

23

00

T

22

–

126

15

00

S

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

7.5

7

7 – 44

7.5

7.5.5 Setting DGPS

／

Checking DGPS Receiving Status

7.5.5.1 Setting DGPS

Setting the beacon receiver is required for accurate measurement using the DGPS.

• Setting

Mode: Manual = Set the frequency and baud rate of the beacon receiver. This mode enables quick

DGPS receiving. Beacon cannot be received, however, when the own ship is outside the transmission area of the beacon receiver.

Auto = Automatically searches the beacon transmitting station and receives beacon. In this mode, however, a longer time is required for searching.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key to open the INIT SETTING #1 menu.

3. Press the 8 key to open the SETTING DGPS ／ DGPS STATUS menu.

4. Press the 1 key to select "MODE".

5. Press the 1 key to select "AUTO" or "MANUAL".

6. Press the ENT key to confirm the setting.

7. In the AUTO mode

Set the search step at 1 kHz for JAPAN.

After pressing the

4

key to select "SET DATA", press the

4

key to select

1 kHz, and press the ENT key.

In the MANUAL mode

Transmission starts after the frequency and baud rate of the beacon transmitting station inside the receiving area are set.

• After pressing the 2 key to select "FREQUENCY", press the numeric key

( 0 to 9 ) and ENT key to select frequency. The frequency is as follows.

Daio-saki: 288 kHz, Tsurugi-saki: 309 kHz

• After pressing the 3 key to select "BAUD RATE", press the 2 ,

0 , 0 , ENT to set the baud rate at 200 bands for JAPAN.

8. After entering the setting, press the 5 key to select "SEND DATA".

7 – 45

7.5

Exit

9. Press the 5 key to wait to send data.

10. Press the ENT key to send data.

After the setting is properly transmitted to the beacon receiver, the display for indicating that transmission is completed appears.

If transmission fails, the display for indicating that transmission error occurs appears.

In this case, check the beacon receiver and cables.

11. Press the

SUB

MENU

key.

SETTING DGPS ／ DGPS STATUS

Press an item number key.

7.

8.

9.

0. PREVIOUS NEMU

1. MODE

2. FREQUENCY

3. BAUD RATE (BPS)

4. SET DATA

5. SEND DATA

6.

AUTO xxx. x kHz

50

1kHz

MANUAL

100

500Hz

200

STATUS BEACON RCV CONNECT

FREQUENCY

BAUD RATE

RSSI

–––––––– kHz

––––– BAUD

–––––

To close this menu, Press (SUB MENU) key.

7

7 – 46

7.5

7.5.5.2 Checking DGPS Receiving Status

Checking the DGPS receiving status. When no beacon receiver is connected, or receiver or cable failure occurs, the message "BEACON RCV NONCONNECT" appears.

• Items

Frequency:

Baud rate:

RSSI:

Displays the frequency of the beacon station currently received.

Displays the baud rate of the beacon station currently received.

Displays the receiving intensity of the beacon station currently received. When it is 100 or lower, the beacon may not be received.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key to open the INIT SETTING #1 menu.

Exit

3. Press the 8 key to open the SETTING DGPS ／ DGPS STATUS menu.

4. Press the

SUB

MENU

key.

SETTING DGPS ／ DGPS STATUS

Press an item number key.

0. PREVIOUS NEMU

1. MODE

2. FREQUENCY

3. BAUD RATE (BPS)

4. SET DATA

5. SEND DATA

6.

7.

8.

9.

AUTO xxx. x kHz

50

1kHz

MANUAL

100

500Hz

200

STATUS BEACON RCV CONNECT

FREQUENCY

BAUD RATE

RSSI

–––––––– kHz

––––– BAUD

–––––

To close this menu, Press (SUB MENU) key.

7 – 47

7.5

7.5.6 Maintenance Menu

The maintenance menu is used only by our service personnel during installation. Users are requested not to change the setting.

Maintenance Menu

MAINTENANCE MENU

Press an item number key.

0. PREVIOUS MENU

1. ANTENNA HEIGHT

2. SERIAL INPUT DEVICE

3. ANTENNA SWITCH

4. PARTIAL MASTER RESET

5. ALL MASTER RESET

6. INTERNAL SETTING to CARD 2

7. CARD 2 to INTERNAL SETTING

8. MEMOLIZE USER SETTING

9. RESTORE USER SETTING

UP to 5m 5–10m

2AXIS LOG

10–20m

HDG SENSOR

TRANSFER DISCARD

MORE 20m

RS232C

To close this menu, Press (SUB MENU) key.

7.5.6.1 Serial Input Equipment

Set the serial input equipment.

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key twice to open the INIT SETTING #2 menu.

3. Press the 8 key to open the MAINTENANCE MENU.

Exit

4. Press the 2 key to select "SERIAL INPUT DEVICE".

5. Pres2s the 2 key to select "2AXIS LOG", "HDG SENSOR" or

"RS232C".

6. Press the ENT key to confirm the setting.

7. Press the

SUB

MENU

key.

7

7 – 48

7.5

7.5.6.2 Antenna Switch

"DISCARD" is set on regular shipment.

Transmission can be enabled while the rotation of the scanner unit is stopped.

Procedures 1. Follow procedures 1 to 3 in subsection 7.5.6.1 to open the MAINTENANCE

MENU.

2. Press the 3 key to select "ANTENNA SWITCH".

Exit

3. Press the 3 key to select "TRANSFER" or "DISCARD".

When "TRANSFER" is selected, transmission is enabled while the rotation of the scanner unit is stopped.

4. Press the ENT key to confirm the setting.

5. Press the

SUB

MENU

key.

7.5.6.3 Partial Master Reset

This function is used to set the same settings as on shipment. Since the contents set by the user are cleared, only our service personnel is allowed to use this function.

Procedures 1. Follow procedures 1 to 3 in subsection 7.5.6.1 to open the MAINTENANCE

MENU.

2. Press the 4 key to select "PARTIAL MASTER RESET".

Exit

3. Press the mode.

4 key to set the system in the partial master reset standby

4. Press the ENT key to reset or the CLR key not to reset according to the direction on the screen.

After resetting, the screen which appears after turning the power on is displayed.

5. Press the

SUB

MENU

key.

7.5.6.4 Total Master Reset

This function is used by our service personnel after the software is written. Users are requested never to use this function.

7 – 49

7.5

7.5.6.5 Internal Setting to Card 2

This function is used to write the contents internally set into card 2. Use this function after inserting a memory card for writing to the lower side of the card slot.

Procedures 1. Follow procedures 1 to 3 in subsection 7.5.6.1 to open the MAINTENANCE

MENU.

2. Press the 6 key to select "INTERNAL SETTING to CARD 2".

Exit

3. Press the 6 key to set the system in the standby mode.

4. Press the ENT key to write or the CLR key not to write according to the direction on the screen.

After writing, a message informing the completion of writing appears.

5. Press the

SUB

MENU

key.

Maintenance Menu

MAINTENANCE MENU

Press an item number key.

0. PREVIOUS MENU

1. ANTENNA HEIGHT

2. SERIAL INPUT DEVICE

3. ANTENNA SWITCH

4. PARTIAL MASTER RESET

5. ALL MASTER RESET

6. INTERNAL SETTING to CARD 2

7. CARD 2 to INTERNAL SETTING

8. MEMOLIZE USER SETTING

9. RESTORE USER SETTING

UP to 5m 5–10m

2AXIS LOG

10–20m

HDG SENSOR

TRANSFER DISCARD

MORE 20m

RS232C

To close this menu, Press (SUB MENU) key.

7

7 – 50

7.5

7.5.6.6 Card 2 to Internal Setting

This function is used to set the contents written in the card to the internal memory. Use this function after inserting the card to the lower side of the card slot.

Procedures 1. Follow procedures 1 to 3 in subsection 7.5.6.1 to open the MAINTENANCE

MENU.

2. Press the

7

key to select "CARD 2 to INTERNAL SETTING".

Exit

3. Press the 7 key to set the system in the standby mode.

4. Press the ENT key to set or the CLR key not to set according to the direction on the screen.

After setting, the screen which appears after turning the power on is displayed.

5. Press the

SUB

MENU

key.

7.5.6.7 User Memory

This function is used to write the contents currently displayed into the internal memory. The written contents are not cleared by master resetting.

Procedures 1. Follow procedures 1 to 3 in subsection 7.5.6.1 to open the MAINTENANCE

MENU.

2. Press the 8 key to select "MEMOLIZE USER SETTING".

Exit

3. Press the 8 key to set the system in the user memory standby mode.

4. Press the ENT key to write or the CLR key not to write according to the direction on the screen.

After writing, a message informing the completion of writing appears.

5. Press the

SUB

MENU

key.

7 – 51

7.5

7.5.6.8 Restoring User Memory

This function is used to read the contents written in the internal memory. After reading, the system assumes the transmission standby status.

Procedures 1. Follow procedures 1 to 3 in subsection 7.5.6.1 to open the MAINTENANCE

MENU.

2. Press the 9 key to select "RESTORE USER SETTING".

Exit

3. Press the 9 key to set the system in the user memory restoring standby mode.

4. Press the ENT key to restore or the CLR key not to restore according to the direction on the screen.

After restoration, the system assumes the transmission standby mode.

5. Press the

SUB

MENU

key.

Maintenance Menu

MAINTENANCE MENU

Press an item number key.

0. PREVIOUS MENU

1. ANTENNA HEIGHT

2. SERIAL INPUT DEVICE

3. ANTENNA SWITCH

4. PARTIAL MASTER RESET

5. ALL MASTER RESET

6. INTERNAL SETTING to CARD 2

7. CARD 2 to INTERNAL SETTING

8. MEMOLIZE USER SETTING

9. RESTORE USER SETTING

UP to 5m 5–10m

2AXIS LOG

10–20m

HDG SENSOR

TRANSFER DISCARD

MORE 20m

RS232C

To close this menu, Press (SUB MENU) key.

7

7 – 52

7.5

7.5.7 Adjusting Position to Chart

Adjust the position on the video if it does not correspond to that on the chart in the R+P or plotter (optional) mode.

7.5.7.1 Adjusting Video and Chart Using Trackball (R+P Mode)

Procedures 1. Press the

SUB

MENU

key to open the SUB MENU.

2. Press the 9 key three times to open the INIT SETTING #3 menu.

3. Press the 1 key to select "SHIFT COAST LINE #1".

4. Press the 1 key to select the "SETTING".

5. Press the ENT key to set the system in the adjusting mode.

6. Move the cursor to the position to be adjusted using the trackball and press the ENT key.

7. Move the cursor to another position to be adjusted using the trackball and press the ENT key.

This enables position adjustment.

Cancellation 1. Follow procedures 1 to 4 above to select the "DELETE".

2. Press the ENT key.

Position adjustment using the trackball is enabled only in the R+P mode.

INIT SETTING #3

INIT SETTING #3

Press an item number key.

0. PREVIOUS MENU

1. SHIFT COAST LINE #1

(RADAR PICTURE)

2. SHIFT COAST LINE #2

3. LAT ／ LON CORRECTION

4. CHART CENTER POSITION

5. DATA INPUT FORMAT

6. DATA ／ TIME

7. SHIP'S TYPE

8.

9. NEXT MENU

To close this menu, Press (SUB MENU) key.

SETTING DELETE

N 0.000'

E 0.000'

N 0.000'

E 0.000'

N 35˚00.000'

E 135˚00.000'

183

OFF

FISHING BOAT

JRC

UTC

180

LOCAL

MERCHANT

7 – 53

7.5

7.5.7.2 Adjusting Video and Chart Position by Entering Adjustment Value

(R+P and Plotter Modes)

Procedures 1. Follow procedures 1 and 2 in subsection 7.5.7.1 to open the INIT SETTING

#3 menu.

2. Press the 2 key to select "SHIFT COAST LINE #2".

3. Press the 2 key, enter an adjustment value for N (north latitude) using numeric keys and press the ENT key.

4. Enter an adjustment value for E (east longitude) using numeric keys

( 0 to 9 ) and press the ENT key.

Cancellation 1. Follow procedures 1 and 2 above to select "SHIFT COAST LINE #2".

2. Press the 2 key, enter "0" to an adjustment value for N using the

0 key and press the ENT key.

3. Enter "0" to an adjustment value for E using the 0 key and press the

Exit

ENT key.

This cancels position adjustment.

5. Press the

SUB

MENU

key.

Position adjustment by entering adjustment values is enabled in the R+P and plotter modes.

INIT SETTING #3

INIT SETTING #3

Press an item number key.

0. PREVIOUS MENU

1. SHIFT COAST LINE #1

(RADAR PICTURE)

2. SHIFT COAST LINE #2

3. LAT ／ LON CORRECTION

4. CHART CENTER POSITION

SETTING

5. DATA INPUT FORMAT

6. DATA ／ TIME

7. SHIP'S TYPE

8.

9. NEXT MENU

To close this menu, Press (SUB MENU) key.

DELETE

N 0.000'

E 0.000'

N 0.000'

E 0.000'

N 35˚00.000'

E 135˚00.000'

183 JRC

OFF UTC

FISHING BOAT

180

LOCAL

MERCHANT

7 – 54

7

7.5

7.5.7.3 Adjusting Position by Changing Longitude ／ Latitude Information from GPS (R+P and Plotter Modes)

Since this adjustment changes such data as the stored track, only our service personnel is allowed to use this function.

Procedures 1. Follow procedures 1 and 2 in subsection 7.5.7.1 to open the INIT SETTING

#3 menu.

2. Press the 3 key to select "LAT ／ LON CORRECTION".

3. Press the 3 key, enter an adjustment value for N (north latitude) using numeric keys ( 0 to 9 ) and press the ENT key.

4. Enter an adjustment value for E (east longitude) using numeric keys

( 0 to 9 ) and press the ENT key.

Cancellation 1. Follow procedures 1 and 2 above to select "LAT ／ LON CORRECTION".

2. Press the 3 key, enter "0" to an adjustment value for N using the

0 key and press the ENT key.

Exit

3. Enter "0" to an adjustment value for E using the 0 key and press the

ENT key.

This cancels position adjustment.

5. Press the

SUB

MENU

key.

INIT SETTING #3

INIT SETTING #3

Press an item number key.

0. PREVIOUS MENU

1. SHIFT COAST LINE #1

(RADAR PICTURE)

2. SHIFT COAST LINE #2

3. LAT ／ LON CORRECTION

4. CHART CENTER POSITION

5. DATA INPUT FORMAT

6. DATA ／ TIME

7. SHIP'S TYPE

8.

9. NEXT MENU

To close this menu, Press (SUB MENU) key.

SETTING DELETE

N 0.000'

E 0.000'

N 0.000'

E 0.000'

N 35˚00.000'

E 135˚00.000'

183 JRC

OFF UTC

FISHING BOAT

180

LOCAL

MERCHANT

7 – 55

7.5

7.5.7.4 Adjusting Position by Entering Latitude ／ Longitude on Own Ship

Procedures 1. Follow procedures 1 and 2 in subsection 7.5.7.1 to open the INIT SETTING

#3 menu.

2. Press the 4 key to select "CHART CENTER POSITION".

Exit

3. Press the 4 key, enter an adjustment value for N (north latitude) / S

(south latitude) using numeric keys and press the ENT key.

4. Enter an adjustment value for E (east longitude) / W (west longitude) using numeric keys and press the ENT key.

The data input from the GPS, if any, is prioritized.

5. Press the

SUB

MENU

key.

INIT SETTING #3

INIT SETTING #3

Press an item number key.

0. PREVIOUS MENU

1. SHIFT COAST LINE #1

(RADAR PICTURE)

2. SHIFT COAST LINE #2

SETTING DELETE

3. LAT ／ LON CORRECTION

4. CHART CENTER POSITION

5. DATA INPUT FORMAT

6. DATA

7. SHIP'S TYPE

8.

／ TIME

9. NEXT MENU

N 0.000'

E 0.000'

N 0.000'

E 0.000'

N 35˚00.000'

E 135˚00.000'

183

OFF

FISHING BOAT

JRC

UTC

To close this menu, Press (SUB MENU) key.

180

LOCAL

MERCHANT

7

7 – 56

7.5

7.5.8 Setting the Rectifier Unit (NBA-3308)

The rectifier unit is commonly used for the ship’s mains of 100/110/115 VAC and 200/220/230 VAC. In this case, however, it is necessary to change the connection of input terminals on T701.

Fig. 7.8 shows the method.

In case of 230 V

In case of 220 V

In case of 200 V

Change connections according to the input voltage.

In case of 230 V

In case of 220 V

In case of 200 V

Change connections according to the input voltage.

This connections shall not be changed.

This connections shall not be changed.

Tap changing procedures on T701

Fig. 7.8 Rectifier ModelNBA-3308

7 – 57

8

AFTER-SALES

SERVICE

8

★

When asking for repair

When a system failure is suspended, read Chapter 5,6,7 carefully and re-check the abnormal part.

If it is still considered to be a failure, stop the operation at once and consult with the dealer you purchased the product, our sales department or your nearest branch or business office.

● Repair within the warranty period

If the failure occurred under proper operation in accordance with the instruction manual, the dealer or JRC shall repair the product without charging. In case of any other failure occurred due to misoperation or natural disaster, the repair work will be charged.

● Repair after the warranty period has expired

If the product is recoverable by repairing, we will repair it upon your request.

●

Items to be identified

✩ Product name, model name, manufacturing date and serial number

✩ Failure condition (as detailed as possible: see the Radar Failure Checklist on Page 8-2.)

✩

Your company/organization name, location and telephone number

★ Recommendation of maintenance inspection

Although it depends on your operating condition, the performance of the product may be lowered due to parts wear.

We recommend maintenance inspection, apart from the normal maintenance work.

For maintenance inspection, consult with the dealer you purchased the product, our sales department, or your nearest branch or business office.

Note that this maintenance inspection will be charged.

For detail of after-sale service, contact the dealer you purchased the product, our sales department, or your nearest branch or business office.

☞ Contact : See the list at the end of the manual.

8 – 1

8

Radar Failure Checklist

When ordering for repair, check the following items, fill in the sheet and send it to us. If there is any uncertain items, contact your ship and give us correct information on the product.

Ship name:____________________ Phone:____________________ Fax:____________________

Radar general model name: JMA-____________________ Serial No.:____________________

(Write the full model name correctly)

(1) Check the following items in the order of the number, and circle the applicable answer between YES or NO.

If the item cannot be determined as YES or NO, explain in detail in the item (17), Others.

(2) If any of the items (1) through (5) is marked as NO, check the fuse of the product (refer to section 7.2,

7.3).

(3) Check the items (4) through (16) while the transmission (TX) is ON.

No.

* Functions mentioned in the items (14) through (16) may be optional. If the function is optional, answer is not necessary.

Check Item

(1) Power can be turned on. (The lamp on the operation panel is lit.)

Result

YES NO

(2) A few minutes after powering-on, it will become stand-by status (TX Ready).

(3) When powering-on (or TX ON), the CRT displays something (CRT is lit).

YES

YES

NO

NO

(4) The scanner unit rotates at the transmission (TX) ON. (Check the following items while transmission is ON.) YES NO

(5) Current is supplied to the magnetron. (Refer to subsection 7.1.2.8) YES NO

(6) Tuning is enabled. (Check with the range of 6NM or more.)

(7) Fixed marker is displayed.

YES

YES

NO

NO

(8) VRM is displayed.

(9) White noise is displayed while set at STC, FTC minimum, GAIN maximum,

IR-OFF and range 48NM.

YES NO

YES NO

(10) Target reflection echo is displayed.

(11) Sensitivity of reflection echo is normal.

(12) EBL is displayed.

(13) Cursor mark moves.

*(14) GYRO course can be set and normally displayed.

*(15) LOG speed can be normally displayed.

*(16) ARPA works normally.

YES NO

YES NO

YES NO

YES NO

YES NO

YES NO

YES NO

(17) Others (Error message, etc)

8

8 – 2

9

DISPOSAL

9-1 Equipment Disposal ············································9-1

9-2 Disposal of Used Batteries ·································9-2

9-3 Disposal of Used Magnetron ······························9-3

9.1

Equipment Disposal

Dispose of this equipment by following the ordinances or regulations of the local authorities in charge of the disposal site.

9 – 1

9.2

Disposal of Used Batteries

WARNING

Before disposing of used lithium batteries, insulate by affixing tape to the positive and negative terminals or by other means. Otherwise, short-circuiting may occur, resulting in heat generation, bursting or ignition.

On this equipment, lithium batteries are used for:

BT1 in the CPU control circuit (PC4401) (Hitachi Maxell ER3)

Checking and Replacing the Battery

• The JMA-3900 series radar stores the tracks, marks, waypoints, and other settings in its internal lithium memory. These items of information are lost when the internal battery is exhausted.

• Checking the Battery

The life expectancy of the lithium battery is approximately 5 years after production. When the service life of the battery is nearing its end, check its output voltage. Replace the battery if it reads lower than

3.0 volts.

• Battery replacement procedure

Replace the battery BT1 in the CMC-1012B CPU circuit board.

Be careful for making short-circuit between the battrey terminal.

The data on the memory is sustained by super-capacitance for a short period of time.

●

Do not keep used lithium batteries but dispose of them immediately after as non-combustible waste.

●

Before disposing of used lithium batteries, insulate by affixing tape to the positive and negative terminals or by other means. In the area where used batteries are separated from other waste, dispose of them by following the local regulations.

For detail, consult your local distributor, our sales office or your local government.

9

9 – 2

9.3

Disposal of Used Magnetron

The scanner unit in this radar use a magnetron (NKE-1055 ／ 1056).

●

After replacing it, return the used one to your local distributor or our sales office.

For detail, ask your local distributor or our sales office.

9 – 3

10

SPECIFICATION

10.1 General Specification JMA-3910-4 ／

JMA-3910-6 ／ JMA-3925-6 ／ JMA-3925-7 ／ JMA-3925-9 ·····10-1

10.2 Scanner Unit NKE-1055-4 ／ 6 ··························10-2

10.3 Scanner Unit NKE-1056-6 ／ 7 ／ 9 ···················10-3

10.4 Display Unit NCD-3780 ······································10-4

10.5 Inputable Signal ·················································10-7

10.6 Outputable Signal ··············································10-7

10.7 Standard Equipment Configuration ················· 10-8

10.8 Installing Clearance between Equipment ········10-8

10.9 Others (Optional) ···············································10-8

10

Specification

10.1

General Specification JMA-3910-4 ／ JMA-3910-6 ／

JMA-3925-6 ／ JMA-3925-7 ／ JMA-3925-9

1)

2)

3)

Type of emission:

Display type:

Display panel:

4) Range scales:

P0N

Raster scan, PPI method, vertically long display

Bright 15-inch color CRT (radar video effective diameter of

180mm min.)

0.125, 0.25, 0.5, 0.75, 1.5, 3, 6 , 12, 16, 24, 32, 48, 96 and 120nm

7)

8)

9)

Range scale accuracy:

Bearing accuracy:

Bearing resolution:

Maximum range: 10kW = 96nm

25kW = 120nm

5) Range resolution: 25m max.

6) Minimum detective range: 28m max.

1% of the maximum operating range or 30m, whichever larger.

± 1 degree max.

1.9 degrees (4ft)

10)

11)

Bearing display:

Ambient conditions:

1.5 degrees (6ft)

1.3 degrees (7ft)

1.1 degrees (9ft)

Relative bearing, true bearing, course-up and stabilized course-up

Temperature

Scanner:

(Storage:

–25 ° C to +55 ° C

–25

°

C to +70

°

C)

Equipment other than scanner unit: –15

°

C to +55

°

C

Relative humidity

All equipment: +40 ° C, 93%

Vibration

All equipment:

2 to 13.2Hz with excursion of

±

1mm

±

10%

13.2 to 100Hz with constant maximum acceleration of 7 m/s 2

12) Power supply input:

13) Power consumption:

DC24V

10kW = Approx. 230W

25kW = Approx. 250W

14) Power supply input fluctuation: DC21.6 to 26.4V

15) Pre-heating time: 10kW = Approx. 90 sec

25kW = Approx. 3 min

16) From standby to operation: 15 sec. max.

10 – 1

10

10.2

Scanner Unit NKE-1055-4 ／ 6

1)

2)

3)

4)

Outside dimensions:

Mass:

Plane of polarization:

Beam width:

Approx. height 440 × approx. swing circle 1340 (mm) (4ft)

Approx. height 440 × approx. swing circle 1910 (mm) (6ft)

Approx. 29kg (4ft)

Approx. 33kg (6ft)

Horizontal polarization

Horizontal beam width = 1.9 degrees (4ft)

Horizontal beam width = 1.2 degrees (6ft)

Vertical beam width = 25 degrees (4ft)

Vertical beam width = 25 degrees (6ft)

Side lobe level

Within

±

10 degrees = –23dB max. (4ft)

–26dB max. (6ft)

Outside ± 10 degrees = –26dB max. (4ft)

–30dB max. (6ft)

5)

6)

7)

8)

Antenna rotation:

Transmission output:

Transmission frequency:

Transmission tube:

Approx. 24rpm

10kW

9410

±

30MHz

Magnetron MSF1425B

9) Transmission pulse width/repetition frequency:

Short Standard

0.125nm

0.25nm

0.5nm

0.75nm

32nm

48nm

96nm

0.08

µ s ／ 2080Hz

0.08

µ s ／ 2080Hz

0.08

µ s ／ 2080Hz

0.08

µ s ／ 2080Hz

1.5nm

0.08

µ s ／ 2080Hz 0.2

µ s ／ 2080Hz

3nm 0.2

µ s ／ 2080Hz 0.4

µ s ／ 1560Hz

6nm

12nm

0.4

µ s ／ 1560Hz 0.8

µ s ／ 780Hz

0.4

µ s ／ 1560Hz 0.8

µ s ／ 780Hz

16nm

24nm

0.8

µ s ／ 780Hz

1.2

µ s ／ 520Hz

1.2

µ s ／ 520Hz

1.2

µ s ／ 520Hz

1.2

µ s ／ 520Hz

Circulator + Diode limiter

Long

10) Transmission switch:

11) Mixer: MIC front end

12) Intermediate frequency amplifier: Intermediate frequency = 60MHz

Band width = 20MHz (0.08

µ s)

6MHz (0.2 and 0.4

µ s)

3MHz (0.8 and 1.2

µ s)

Gain = 90dB min.

0.2

µ s ／ 2080Hz

0.4

µ s ／ 1560Hz

0.8

µ s ／ 780Hz

1.2

µ s ／ 520Hz

1.2

µ s ／ 520Hz

1.2

µ s ／ 520Hz

13)

14)

Overall noise figure:

Wind Load:

Receiver characteristic = Logarithmic receiver

7.5dB (average)

51.5m/s (100knots) relative

10

10 – 2

10

10.3

Scanner Unit NKE-1056-6 ／ 7 ／ 9

1)

2)

Outside dimensions:

Mass:

3) Plane of polarization:

4) Beam width:

Approx. height 519 × approx. swing circle 1910 (mm) (6ft)

Approx. height 523 × approx. swing circle 2260 (mm) (7ft)

Approx. height 519 × approx. swing circle 2836 (mm) (9ft)

Approx. 41kg (6ft)

Approx. 44kg (7ft)

Approx. 44kg (9ft)

Horizontal polarization

Horizontal beam width = 1.2 degrees (6ft)

5) Antenna rotation:

6) Transmission output:

7) Transmission frequency:

8) Transmission tube:

Horizontal beam width = 1 degree (7ft)

Horizontal beam width = 0.8 degrees (9ft)

Vertical beam width = 25 degrees (6ft)

Vertical beam width = 20 degrees (7ft)

Vertical beam width = 25 degrees (9ft)

Side lobe level

Within ± 10 degrees = –26dB max. (6 ,7 and 9ft)

Outside ± 10 degrees = –30dB max. (6 ,7 and 9ft)

Approx. 20rpm

25kW

9410 ± 30MHz

Magnetron M1437(A)

9) Transmission pulse width/repetition frequency:

10) Transmission switch:

Short Standard

0.125nm

0.25nm

0.5nm

0.75nm

0.08

µ s ／ 2080Hz

0.08

µ s ／ 2080Hz

0.08

µ s ／ 2080Hz

0.08

µ s ／ 2080Hz

1.5nm

0.08

µ s ／ 2080Hz 0.2

µ s ／ 2080Hz

3nm 0.2

µ s ／ 2080Hz 0.4

µ s ／ 1560Hz

6nm

12nm

16nm

24nm

0.4

µ s ／ 1560Hz 0.8

µ s ／ 780Hz

0.4

µ s ／ 1560Hz 0.8

µ s ／ 780Hz

0.8

µ s ／ 780Hz

1.2

µ s ／ 520Hz

32nm

48nm

120nm

1.2

µ s ／ 520Hz

1.2

µ s ／ 520Hz

1.2

µ s ／ 520Hz

Circulator + Diode limiter

11) Mixer: MIC front end

Long

0.2

µ s ／ 2080Hz

0.4

µ s ／ 1560Hz

0.8

µ s ／ 780Hz

1.2

µ s ／ 520Hz

1.2

µ s ／ 520Hz

1.2

µ s ／ 520Hz

12) Intermediate frequency amplifier: Intermediate frequency = 60MHz

Band width = 20MHz (0.08

µ s)

6MHz (0.2 and 0.4

µ s)

3MHz (0.8 and 1.2

µ s)

Gain = 90dB min.

Receiver characteristic = Logarithmic receiver

13) Overall noise figure: 7.5dB (average)

14) Wind Load: 51.5m/s (100knots) relative (6ft, 9ft)

41.2m/s (80knots) relative (7ft)

10 – 3

10.4

Display Unit NCD-3780

1)

2)

Structure:

Outside dimensions:

Desktop type

Approx. W370 × H452 × D562 (mm)

Approx. 33 kg 3) Mass:

4)

5)

6)

Display:

Number of pixels:

Display area:

Vertical 15-inch color CRT

1024

×

768

Approx. 280 × 210 (mm)

7) Color, gradation and brilliance

Radar video

Gradation:

Video color:

Brilliance control:

Radar track

Gradation:

Video color:

16(8 in radar trail display mode)

1 (yellow, green, orange, color)

4 steps

1

1 (sky, white, green)

Brilliance control:

Fixed marker/VRM/EBL

Video color:

Brilliance level:

4 steps (simultaneous control with radar video)

Cyan

4 steps

The following brilliance levels are simultaneously changed.

Letter/dial plane

White

4 steps

Video color:

Brilliance level:

SHM/cursor

Video color:

Brilliance level:

8) Range/scale spacing:

White

4 steps

Range Scale spacing Number of rings

12nm

16nm

24nm

32nm

48nm

96nm

0.125nm

0.25nm

0.5nm

0.75nm

1.5nm

3nm

6nm

120nm

2nm

4nm

4nm

8nm

8nm

16nm

0.0625nm

0.125nm

0.25nm

0.25nm

0.25nm

0.5nm

1nm

20nm

6

4

6

4

6

6

6

6

6

2

3

2

2

6

(10kW only)

(25kW only)

10

10

10 – 4

10

9)

10)

11)

12)

Screen display mode:

Variable range scale:

Electronic cursor:

Cursor:

Radar mode

North-up (TM/RM/SRM/CTM), Course-up (TM/RM/SRM/

CTM), Head-up (RM/SRM) and Stabilized course-up (CTM)

Composite mode

North-up (TM/CTM) and Course-up (TM/CTM)

Plotter mode (when optional NDB-32 is installed)

North-up (TM) and Course-up (TM)

2 (digital display)

Range display unit: nm and km

0.000 to 295.0nm (0.000 to 547.0km)

2 (digital display)

Second EBL can be floated (first one is fixed).

Second EBL can be switched to parallel index lines.

000.0 to 359.9 degrees (in 0.1 degree unit)

Can be switched between bearing display unit, relative bearing and true bearing.

Displays the range, bearing and L ／ L (when GPS and GYRO are connected.)

Moved using the trackball.

13) Tuning method:

14) Sea clutter restraint:

Manual and auto (tuning indication bar attached)

Manual and auto

15) Rain clutter restraint: Manual and auto

16) Radar interference rejection: Built-in

17) Bearing scale:

18) Bow display:

1-degree scale, 360 degrees

Electronic (stern marker can also be displayed)

19) Guard zone alarm:

20)

21)

22)

Off center:

TM display:

TM reset position:

Can be switched between "OFF", "IN" and "OUT".

Buzzer sound available.

Range storing function equipped (1 sector ring)

Up to 66% of radius of any scale except 96 and 120nm

Built-in (excluding 96 and 120nm)

66% of radius

23)

24)

25)

26)

27)

Double zoom:

Radar trail:

Pulse width switch:

Target enhancement:

Degaussing:

Manually resettable

Within 66% of radius from the zoom center (excluding 0.125nm)

* Available only when RM is selected in the radar mode.

TM radar trail in TM

RM radar trail in RM

Radar trail interval: 1min, 3min, 6min, 12min, 15min, 30min,

60min, continuous

Radar trail can automatically be cleared by switching range or resetting TM.

Long/short (0.75, 1.5, 3, 6, 12 and 16nm)

Built-in

Automatic degaussing (approximately every second)

10 – 5

28) Operating positions

(1) By control

(1) Tuning control: TUNE

(2) Snow/rain clutter restraining control: RAIN CLUTTER

(3) Sea clutter restraining control:

(4) Gain adjusting control:

(5) Brilliance:

SEA CLUTTER

GAIN

BRILL

VRM

EBL

ON/OFF POWER

(6) VRM:

(7) EBL:

(8) Power supply:

(2) By switches

(1) Main menu key:

(2) Sub menu key:

(3) Enter key:

(4) Range expanding key:

(5) Range reducing key:

(6) Panel light key:

(7) Day/night mode selecting key:

(8) Range scale brilliance key:

MAIN MENU

SUB MENU

ENT

RANGE △

RANGE ▽

PANEL DIM

DAY/NIGHT

RANGE RINGS

(9) Bearing mode key:

(10) Pulse width selecting key:

(11) TM reset key:

(12) TM/RM key:

BEARING

PULSE WIDTH

TM RESET

TM/RM

(13) Center moving key: OFF CENT

(14) Ship's head marker brilliance key: SHM

(15) Alarm reset key:

(16) VRM control key:

(17) VRM control key

(18) EBL control key:

(19) EBL control key:

(20) Function selecting key:

ACK

VRM

OFF

EBL

OFF

FUNC

(21) Guard alarm key:

(22) Transmission/standby key:

(23) Ten key 0:

(24) Ten key 1:

(25) Ten key 2:

(26) Ten key 3:

(27) Ten key 4:

(28) Ten key 5:

(29) Ten key 6:

(30) Ten key 7:

(31) Ten key 8:

(32) Ten key 9:

(33) Clear key:

0

1

ALARM

TX/ST-BY

2

3

6

7

4

5

8

9

CLR

(34) Reverse key:

(35) Numerical value display key:

(36) Acquisition key:

DATA READ

ACQ

10 – 6

10

10

10

(3) Special keys

[For merchant ship]

(1) Floating EBL key:

(2) Vector + key:

(3) Vector - key:

(4) Vector key:

[For fishing ship]

FEBL

VECT+

VECT–

VECT

(1) Enlarging/reducing key:

(2) Destination key: DEST

(3) Maker key:

(4) Other ship track key: TRACK

[Switches available when optional equipment is installed]

(1) Starting point key:

(2) End point key:

(3) Target canceling key:

(4) Mark key:

(5) Track key:

CANCEL TARGET

MARK

OWN TRACK

10.5

Inputable Signal

1) Electronic compass

NMEA0183 (HDG, HDT, VHW and HDM) (incompatible with 2-axis log)

2) Navigation system

Equipment capable of outputting NMEA0182/NMEA0183 (GLL, GGA, VTG, RMB and

RMC) or JRC-format signals.

3) Gyro

SYNC/PULSE: 360X, 180X, 90X and 36X

4) Log

SYNCHRO:

PULSE:

360X, 180X, 90X and 36X

800, 400, 200, 100

5) 2-axis log

NMEA0183 (VBW) (incompatible with electronic compass)

6) External event mark

Key input

7) Radar buoy

10.6

Outputable Signal

1) External alarm

2) Sub display unit signal (radar adaptor and operation analyzer)

3) Remote monitor (using vertical multi-scan monitor) (CFQ-8914 connector option)

10 – 7

10.7

Standard Equipment Configuration

Scanner unit:

Display unit:

Installation cable:

Installing tools:

Standard spare parts:

Sun shield:

Installation manual:

1 unit

1 unit

Typ. 15m (scanner unit connector)

1 set

1 set

1 unit

1 (Japanese or English)

10.8

Installing Clearance between Equipment

Max.

Between scanner unit and display unit 30m

Typ.

15m

10.9

Others (Optional)

ARPA function (built-in):

Plotter function (built-in):

Rectifier unit:

Handle:

Installation cable (20m):

Installation cable (30m):

NCA-840

NDB-32

NBA-3308

MPHD30202

CFQ-8681-20

CFQ-8681-30

10

10

10 – 8

11

APPENDIX

Appendix 1 Radar System Circuit Code List

Appendix 2 Circuit Diagram of Radar Type JMA-3910-4 ／ 6 and JMA-3925-6 ／ 7 ／ 9

Appendix 3 Terminal Board Connection Diagram of Radar

Type JMA-3910-4 ／ 6

Appendix 4 Terminal Board Connection Diagram of Radar

Type JMA-3925-6 ／ 7 ／ 9

Appendix 5 Primary Power Supply System Diagram of Radar

Type JMA-3910-4 ／ 6 and JMA-3925-6 ／ 7 ／ 9

Appendix 6 Internal Connection Diagram of Scanner Unit

Type NKE-1055

Appendix 7 Internal Connection Diagram of Scanner Unit

Type NKE-1056

Appendix 8 Internal Connection Diagram of Display Unit

Type NCD-3780

Appendix 9 Power Supply Connection Diagram of Display

Unit Type NCD-3780

Appendix 10 NSK Log Selection Switches of Display Unit

Type NCD-3780

Appendix 11 Setting Table of the Speed Log Select

Switches of Display Unit Type NCD-3780

Appendix 12 Setting Table of the Gyro Compass and Gyro

Select Switches of Display Unit Type NCD-3780

A

Appendix

Appendix 1: Radar System Circuit Code List

◎ General code

JMA-3910-4: 10kW, 2-units, 4-feet scanner unit

JMA-3910-6: 10kW, 2 units, 6-feet scanner unit

JMA-3925-6: 25kW, 2 units, 6-feet scanner unit

JMA-3925-7: 25kW, 2 units, 7-feet scanner unit

JMA-3925-9: 25kW, 2 units, 9-feet scanner unit

◎ Scanner unit

NKE-1055 (10kW)

NMA-469A:

NRG-210A:

Modulator

Receiver

NAX-16A-4/NAX-16A-6: Radiator

CQD-1547: Internal equipment of scanner unit

CQC-931:

CBP-136:

Internal equipment of Transmitter-receiver unit

Motor

CNM-200:

CME-261A:

Internal equipment of modulator

Modulator circuit PC201

CMA-662:

CAE-344-3:

CBP-143:

CQD-1735:

Internal equipment of receiver

IF amplifier circuit PC301

Motor control circuit PC101

Internal equipment of slow starter

NKE-1056 (25kW)

NMA-470: Modulator

NRG-210A: Receiver

NAX-16A-6/NAX-10-7S/NAX-16A-9:

CQC-898:

CMH-1562A:

CNM-201:

Radiator

Internal equipment of scanner unit (with diode limiter)

Interface circuit PC101

Internal equipment of modulator

CPA-209:

CMA-662:

CAE-344-3:

CBP-143:

CQD-1736:

Modulator circuit PC210

Internal equipment of receiver

IF amplifier circuit PC301

Motor control circuit PC101

Internal equipment of slow starter

A – 1

Appendix 1 (continued)

◎ Display unit

NCD-3780

CML-554:

CFQ-8682:

CMJ-304C:

CQD-1546:

CMC-1012B:

CED-42B:

CCK-787:

CCK-789:

CCK-790E:

CBD-1378:

NBD-708:

Internal circuit of display unit

Mother board circuit PC4101

NSK circuit PC4201

Terminal board circuit PC4301

CPU control circuit PC4401

Time base circuit PC4402

Panel circuit 1 PC4501

Panel circuit 2 PC4502

Panel circuit 3 PC4503

Power supply circuit PC5101

Power supply unit

◎ Installation cable

CFQ-8681-15: Installation cable (15m)

APPENDIX

A – 2

Appendix 2 Circuit Diagram of Radar Type JMA-3910-4/6 and JMA-3925-6/7/9

Appendix 3 Terminal Board Connection Diagram of Radar Type JMA-3910-4/9

Appendix 4 Terminal Board Connection Diagram of Radar Type JMA-3925-6/7/9

Appendix 5 Primary Power Supply System Diagram of Radar Type JMA-3910-4/9 and JMA-3910-6/7/9

Appendix 6 Internal Connection Diagram of Scanner Unit Type NKE-1055

Appendix 7 Internal Connection Diagram of Scanner Unit Type NKE-1056

Appendix 8 Internal Connection Diagram of Display Unit Type NCD-3780

Appendix 9 Power Supply Connection Diagram of Display Unit Type NCD-3780

Appendix 10 NSK Log Selection Switches of Display Unit Type NCD-3780

Appendix 11 Setting Table of the Speed Log Select Switches of Display Unit Type NCD-

3780

Appendix 12 Setting Table of the Gyro Compass and Gyro Select Switches of Display Unit Type NCD-3780