JRC JMA-2353, JMA-2354 Instruction Manual

JMAJMA-2353/23542353/2354

MARINE RADARMARINE RADAR

EQUIPMENTEQUIPMENT

INSTRUCTIONINSTRUCTION

MANUALMANUAL

PRECAUTIONS BEFORE OPERATION

i

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. (Maintenance, check-up and adjustment of the

inside of the equipment are prohibited except by maintenance specialists.)

High voltages of tens of thousands volts are so dangerous as to bring a death from

electric shock, but even voltages of hundred volts may sometimes lead to a death from

electric shock. To prevent such an accident, make it a rule to turn off the power switch,

discharge capacitors with a wire surely earthed on an end 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. In this case, it is

necessary to perform an emergency measure immediately.

FIRST-AID TREATMENTS

ii

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 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 this 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, wipe his mouth so that foaming mucus does not accumulate inside.

FIRST-AID TREATMENTS

iii

 When pulse is beating but breathing has stopped

(Mouth-to-mouth respiration) Fig. 1

1 Tilt the victim's head back as far as this face looks back. (A pillow may be

inserted 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 minutes (blocking his nostrils).

4 Carefully watch that he has recovered his natural breathing and atop

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 and keep

him warm and quiet. (Never give him alcoholic drinks.)

 Method of mouth-to-mouth respiration by raising head

Fig. 1 Mouth-to mouth respiration

(1) Raise the victim's head. Support his

forehead with one of your hand and his
neck with the other hand.→①

When you tilt his head backward, the

victim, in most cases, opens his mouth
to the air. This makes mouth-to mouth
respiration easy.

(2) Cover his mouth as widely as possible

with yours and press your cheek against
his nose→②

Or, pinch his nostrils with your fingers to

prevent air from leaking.→③

(3) 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.

FIRST-AID TREATMENTS

iv

 When both pulse and breathing have stopped

Perform the (Cardiac massage) Fig. 2 and (Mouth-to-mouth respiration) Fig. 1

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 minutes). (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 15 times

while the other person blow into his mouth twice, and they shall repeat this

combination. (Perform the 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 hot coffee or

tea and keep him warm and calm while watching him carefully. (Never give

him alcoholic drinks.) Commit the victim to a medical 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 treatment.

Fig. 2 Cardiac massage

PREFACE

v

PREFACE

Thank you very much for purchasing the JRC marine radar equipment, JMA-2300MK2

series.

This equipment is a marine radar equipment designed to obtain safe operation of marine

ships. This equipment consists of a scanner unit and a display 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 occurs.

BEFORE OPERATION

vi

BEFORE OPERATION

 Pictorial Indication

Various pictorial indications are included in this manual and are shown on these

equipment so that you can operate them safety 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.

Understand them before you read this manual.

DANGER

This indication is shown where incorrect equipment
operation due to negligence may cause death or serious
injuries.

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 equipments 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 equipments are not
operated correctly.

 Examples of Pictorial Indication

Electric

Shock

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.

Disassembling

Prohibited

Prohibited

The

mark represents prohibition.
Detailed contents of the prohibited action ("Disassembling
Prohibited" in the example on the left.) is shown in the mark.

Disconnect

the power

plug

Instruction

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 equipment.

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

PRECAUTIONS

vii

PRECAUTIONS

DANGER

Never conduct inspection or repair work of equipment components.
Inspection or repair work by unauthorized personnel may result in
fire hazard or electric shock.
For inspection and repair work of equipment components, consult
with our branch office, branch shop, sales office, or our distributor
in your district.

When conducting maintenance, make sure to turn the main power
off.
Failure to comply may result in electrocution.

Turn off the main power before cleaning the equipment. Especially
when a rectifier is used, make sure to turn it off since voltage is
still output from the rectifier even after the radar is turned off.
Failure to comply may result in equipment failure, electric shock.

When conducting maintenance work on the antenna, make sure to
turn its main power off.
Failure to comply may result in electrocution or injuries.

During scanner unit maintenance, set the safety switch for
stopping the scanner unit to the "OFF" position.
Failure to comply may result in injuries caused by physical contact
with the rotating antenna.

Do not touch the radiator. Even if the power is turned off, the
radiator may be rotated by the wind.

PRECAUTIONS

viii

WARNING

Never directly touch the internal components of the antenna,
receiver/transceiver, or indicator.
Direct contact with these high-voltage components may cause
electrocution. For maintenance, inspection, or adjustment of
equipment components, consult with our branch office, branch
shop, sales office, or our distributor in your district.

Do not get close to the radiant section of the antenna. It is a
rotating part, and it may cause injuries if it suddenly starts rotating
and consequently hits the body.
It is recommended that the radiant section be installed at a high
place such as on the roof of the wheelhouse, on the flying bridge,
on the trestle, or on the radar mast so that no one can get close to
it. When any work must be done on the antenna, make sure to turn
the antenna switch off.

Microwave radiation level:
Keep away from a scanner when it is transmitting.
The high level of microwave is radiated from the front face of the
scanner specified below. The microwave exposure at close range
could result in injuries (especially of the eyes).

Scanner Unit 10W/m2

NKE-2063 40cm
NKE-2043 22cm

Make sure to install the antenna at a place higher than human
height.
Direct exposure to electromagnetic waves at close range will have
adverse effects on the human body.

When it is necessary to get close to the antenna for maintenance
or inspection purposes, make sure to turn the indicator power
switch to "OFF" or "STBY."
Direct exposure to electromagnetic waves at close range will have
adverse effects on the human body.

When conducting maintenance work, make sure to turn off the
power and unplug the power connector J1 of the display unit so
that the power supply to the equipment is completely cut off.
Some equipment components can carry electrical current even
after the power switch is turned off, and conducting maintenance
work without unplugging the power connector may result in
electrocution, equipment failure, or accidents.

PRECAUTIONS

ix

CAUTION

A malfunction may occur if the power in the ship is
instantaneously interrupted during operation of the radar. In this
case, the power should be turned on again.

Always use the automatic tuning mode.
Use the manual tuning mode only when the automatic tuning
mode does not provide the best tuning state due to deterioration
of magnetron for example.

If sensitivity is set too high, unnecessary signals such as noises in
the receiver and false echoes increase to lower target visibility.
At the same time, if sensitivity is set too low, detection of targets
such as ships and dangerous objects may be hindered.
Therefore, sensitivity must always be set to an optimal level.

When using the sea clutter suppression function, never set the
suppression level too high canceling out all image noises from the
sea surface at close range. Detection of not only echoes from
waves but also targets such as other ships or dangerous objects
will become inhibited.
When using the sea clutter suppression function, make sure to
choose the most appropriate image noise suppression level.

When using the sea clutter suppression function, never set the
suppression level too high canceling out all image noises from the
rain or snow at close range. Detection of not only echoes from the
rain or snow but also targets such as other ships or dangerous
objects will become inhibited.
When using the sea clutter suppression function, make sure to
choose the most appropriate image noise suppression level.

Use the radar only as a navigation aid.
The final navigation decision must always be made by the operator
him/herself.
Making the final navigation decision based only on the radar display
may cause accidents such as collisions or running aground.

Use the target tracking function (TT) only as a navigation aid. The
final navigation decision must always be made by the operator
him/herself.
Making the final navigation decision based only on the target
tracking function (TT) information may cause accidents.
The target tracking function (TT) information such as vector, target
numerical data, and alarms may contain some errors. Also, targets
that are not detected by the radar cannot be acquired or tracked.
Making the final navigation decision based only on the radar display
may cause accidents such as collisions or running aground.

PRECAUTIONS

x

CAUTION

Since these alarms may include some errors depending on the
target tracking conditions, the navigation officer himself should
make the final decision for ship operations such as collision
avoidance.
Making the final navigation decision based only on the alarm may
cause accidents such as collisions.

When setting an automatic acquisition zone, make sure to properly
adjust gain, sea-surface reflection suppression level, and
rain/snow reflection suppression level so that the optimal target
images are always on the radar screen. The automatic acquisition
zone alarm will not be activated for targets undetected by the
radar, and it may result in accidents such as collisions.

Any adjustments must be made by specialized service personnel.
Incorrect settings may cause unstable operation and result in
accidents or equipment failure.

Do not make any adjustments during navigation. Failure to comply
may result in adverse effects on the radar function which may lead
to accidents or equipment failure.

Make sure to shut off the main power before replacing parts.
Failure to comply may result in electrocution or equipment failure.

When replacing magnetrons, make sure to shut off the main power
and let the equipment stand for more than 5 minutes to discharge
the high-voltage circuit.
Failure to comply may result in electrocution.

Make sure to take off your watch when your hand must get close
to the magnetron.
Failure to comply may result in damage to the watch since the
magnetron is a strong magnet.

A part of CRT monitor (CCN-366) generates the high voltage of
approx. 10 kV. For non-service personnel, never touch the inside
of the display unit.
Failure to comply may result in electrocution.

When cleaning the display screen, do not wipe it too strongly with
a dry cloth. Also, do not use gasoline or thinner to clean the
screen.
Failure to comply will result in damage to the screen surface.

WARNING LABEL MOUNTING POINT

xi

WARNING LABEL MOUNTING POINT

NKE-2043 Scanner Unit

NKE-2063 Scanner Unit

WARNING LABEL MOUNTING POINT

xii

NCD-2237 Display Unit

WARNING LABEL MOUNTING POINT

xiii

NBD-865 Rectifier unit

EQUIPMENT APPEARANCE

xiv

EQUIPMENT APPEARANCE

Scanner Unit Type NKE-2043 (2 feet)

Scanner Unit Type NKE-2063 (3.9 feet)

NCD-2237 Display Unit

CONTENTS

xv

CONTENTS

PREFACE .................................................................................v

BEFORE OPERATION .............................................................vi

PRECAUTIONS .......................................................................vii

WARNING LABEL MOUNTING POINT ...................................xi

EQUIPMENT APPEARANCE.................................................xiv

GLOSSARY ............................................................................xix

Chapter 1

GENERAL AND EQUIPMENT COMPOSITION

............................................................................. 1-1

1.1 FUNCTIONS............................................................................................................................. 1-1

1.2 FEATURES .............................................................................................................................. 1-2

1.3 CONFIGURATION ...................................................................................................................1-3

1.4 EXTERIOR DRAWINGS.......................................................................................................... 1-5

1.5 GENERAL SYSTEM DIAGRAMS ........................................................................................... 1-8

Chapter 2 OPERATIONS...................................................... 2-1

2.1 SCREEN DISPLAY ..................................................................................................................2-1

2.2 PANEL ...................................................................................................................................... 2-2

2.3 POWER ON/OFF ..................................................................................................................... 2-4

2.4 SENSITIVITY ADJUSTMENT ................................................................................................. 2-6

2.5 SEA CLUTTER SUPPRESSION............................................................................................. 2-8

2.6 RAIN/SNOW CLUTTER SUPPRESSION ............................................................................ 2-11

2.7 SOFT KEY OPERATION....................................................................................................... 2-14

2.7.1 MEASURING TARGET BEARING (EBL)...................................................................... 2-22

2.7.2 MEASURING RANGE TO TARGET (VRM).................................................................. 2-24

2.7.3 SETTING VECTORS...................................................................................................... 2-26

2.7.4 DISPLAYING OTHER SHIP'S TRACKS (RADAR TRAILS)......................................... 2-29

2.7.5 AIS OPERATIONS ......................................................................................................... 2-31

2.7.6 TT OPERATIONS........................................................................................................... 2-36

CONTENTS

xvi

2.7.7 DISPLAYING THE RADAR ALARM

AND AUTOMATIC ACQUISITION OPERATIONS ......................................................2-44

2.7.8 SETTING DISPLAY BRILLIANCE ................................................................................. 2-50

2.7.9 ADJUSTING SCANNER ................................................................................................ 2-51

2.7.10 SETTING DISPLAY SCREEN ....................................................................................... 2-53

2.7.11 SWITCHING TO TRUE/RELATIVE MOTION DISPLAY MODE .................................. 2-57

2.7.12 SWITCHING BEARING DISPLAY MODE..................................................................... 2-59

2.7.13 SELECTING TRANSMITTER PULSE LENGTH........................................................... 2-61

2.7.14 MOVING OWN SHIP’S DISPLAY POSITION............................................................... 2-63

2.7.15 SETTING SYMBOL DISPLAY .......................................................................................2-64

2.7.16 SETTING MOB ............................................................................................................... 2-65

2.7.17 MARKING........................................................................................................................ 2-66

2.7.18 USING LINES ................................................................................................................. 2-67

2.7.19 DISPLAYING OWN SHIP'S TRACK.............................................................................. 2-68

2.7.20 USING EVENT MARKS .................................................................................................2-69

2.7.21 SETTING AIS FILTER.................................................................................................... 2-70

2.7.22 USING TLL TX................................................................................................................ 2-71

2.8 BASIC MENU OPERATIONS................................................................................................ 2-72

2.9 RADAR ECHO SETTINGS.................................................................................................... 2-76

2.9.1 SETTING RADAR INTERFERENCE REJECTION ...................................................... 2-76

2.9.2 SETTING FOR ENHANCING TARGETS...................................................................... 2-77

2.9.3 PROCESS....................................................................................................................... 2-78

2.9.4 ZOOMING ....................................................................................................................... 2-79

2.9.5 VIDEO LATITUDE ..........................................................................................................2-79

2.9.6 VIDEO NOISE REJECTION........................................................................................... 2-80

2.10 MARKER SETTING ............................................................................................................... 2-81

2.10.1 SETTING OPERATIONS FOR EBLS (ELECTRONIC BEARING LINES)................... 2-81

2.10.2 SETTING CURSORS ..................................................................................................... 2-83

2.10.3 SETTING RANGE RINGS.............................................................................................. 2-84

2.11 BRILLIANCE........................................................................................................................... 2-85

2.12 CONTROL SETTING............................................................................................................. 2-87

2.12.1 DISPLAYING TRUE/RELATIVE MOTION .................................................................... 2-87

2.12.2 SETTING USER KEYS ..................................................................................................2-88

2.12.3 ADJUSTING BUZZER VOLUME................................................................................... 2-89

2.13 SETTING TT/AIS.................................................................................................................... 2-91

2.13.1

COLLISION AVOIDANCE .............................................................................................. 2-91

2.13.2 PREPARATION .............................................................................................................. 2-94

2.13.3 SETTING TARGET NUMBER DISPLAY....................................................................... 2-95

2.13.4 SETTING TARGET NUMBER ALLOCATION............................................................... 2-96

2.13.5 SETTING AIS ALARM.................................................................................................... 2-97

CONTENTS

xvii

2.13.6 SETTING AIS DISPLAY TARGET................................................................................. 2-98

2.13.7 SETTING AIS DESTINATION SHIP (DirecTrak

TM

) ....................................................... 2-98

2.13.8 SETTING AIS RETRIEVED VESSEL............................................................................ 2-99

2.13.9 SETTING AIS FILTER.................................................................................................. 2-100

2.13.10 TT Target All Clear ........................................................................................................ 2-100

2.14 SETTING DETECTION LEVELS OF RADAR ALARM ......................................................2-101

2.15 PLOTTER UNIT ...................................................................................................................2-102

2.15.1 DISPLAYING WAYPOINT MARKS ............................................................................. 2-102

2.15.2 DISPLAYING OWN SHIP'S TRACK............................................................................ 2-103

2.16 SETTING TIMED TX............................................................................................................ 2-104

Chapter 3 TRUE AND FALSE ECHOES ON DISPLAY ....... 3-1

3.1 RADAR WAVE WITH THE HORIZON.................................................................................... 3-1

3.2 REFLECTION FROM TARGET .............................................................................................. 3-3

3.3 SEA CLUTTER AND RAIN AND SNOW CLUTTER.............................................................. 3-4

3.3.1 SEA CLUTTER ................................................................................................................. 3-4

3.3.2 RAIN AND SNOW CLUTTER .......................................................................................... 3-4

3.3.3 COPING WITH SEA CLUTTER AND RAIN AND SNOW CLUTTER ............................ 3-4

3.4 FALSE ECHOES...................................................................................................................... 3-5

3.4.1 SHADOW ..........................................................................................................................3-5

3.4.2 SIDE LOBE EFFECT........................................................................................................ 3-5

3.4.3 FALSE ECHO BY SECONDARY REFLECTION............................................................ 3-5

3.4.4 FALSE ECHO BY MULTIPLE REFLECTION ................................................................. 3-6

3.4.5 SECOND TIME ECHOES ................................................................................................ 3-6

3.4.6 RADAR INTERFERENCE................................................................................................ 3-7

3.5 DISPLAY OF RADAR TRANSPONDER (SART) ................................................................... 3-8

Chapter 4 MAINTENANCE ................................................... 4-1

4.1 ROUTINE MAINTENANCE ..................................................................................................... 4-1

4.2 MAINTENANCE ON EACH UNIT ........................................................................................... 4-2

4.2.1 SCANNER UNIT NKE-2043, 2063................................................................................... 4-2

4.2.2 DISPLAY UNIT NCD-2237............................................................................................... 4-5

4.3 PERFORMANCE CHECK ....................................................................................................... 4-6

4.3.1 TEST MENU ..................................................................................................................... 4-7

4.3.2 SYSTEM INFORMATION ................................................................................................ 4-7

4.3.3 SYSTEM TIME.................................................................................................................. 4-8

4.3.4 SCANNER INFORMATION ............................................................................................. 4-8

4.3.5 HARDWARE INFORMATION.......................................................................................... 4-9

4.3.6 ERROR LOG..................................................................................................................... 4-9

4.3.7 LINE MONITOR .............................................................................................................. 4-11

CONTENTS

xviii

4.3.8 SELF TEST ..................................................................................................................... 4-12

4.4 REPLACEMENT OF MAJOR PARTS .................................................................................. 4-16

4.5 FAULT FINDING ....................................................................................................................4-17

4.5.1 LIST OF ALARMS AND OTHER INDICATIONS .......................................................... 4-17

4.5.2 FUSE CHECKING .......................................................................................................... 4-24

4.6 TROUBLE SHOOTING.......................................................................................................... 4-25

4.6.1 INCLUDED ACCESSORIES.......................................................................................... 4-25

4.6.2 SPECIAL PARTS............................................................................................................ 4-27

4.6.3 CIRCUIT BLOCK TO BE REPAIRED............................................................................ 4-28

Chapter 5 AFTER-SALES SERVICE ................................... 5-1

5.1 KEEPING PERIOD OF MAINTENANCE PARTS ....................................................................... 5-1

5.2 WHEN YOU REQUEST FOR REPAIR................................................................................... 5-1

5.3 RECOMMENDED MAINTENANCE........................................................................................ 5-1

Chapter 6 DISPOSAL ........................................................... 6-1

6.1 DISPOSAL OF THE UNIT ....................................................................................................... 6-1

6.2 DISPOSAL OF USED MAGNETRON..................................................................................... 6-2

6.3 CHINA RoHS............................................................................................................................ 6-2

Chapter 7 SPECIFICATIONS ............................................... 7-1

7.1 GENERAL SPECIFICATIONS ................................................................................................ 7-1

7.2 SCANNER ................................................................................................................................ 7-2

7.2.1 NKE-2043.......................................................................................................................... 7-2

7.2.2 NKE-2063.......................................................................................................................... 7-4

7.3 DISPLAY UNIT......................................................................................................................... 7-6

7.3.1 INTEGRATED DISPLAY UNIT (NCD-2237) ................................................................... 7-6

7.3.2 OPERATION PANEL........................................................................................................ 7-8

7.3.3 AIS FUNCTION................................................................................................................. 7-8

7.3.4 TT FUNCTION .................................................................................................................. 7-9

7.4 INPUT/OUTPUT SIGNAL ...................................................................................................... 7-10

7.4.1 INPUT ENABLE SIGNAL ...............................................................................................7-10

7.4.2 OUTPUT ENABLE SIGNAL ........................................................................................... 7-10

7.5 STANDARD CONFIGURATION ........................................................................................... 7-11

APPENDIX

INDEX

GLOSSARY

xix

GLOSSARY

This section describes the main terms used for this equipment and general related

maritime terms.

A

AZ

Acquisition/Activation zone
A zone set up by the operator in which the system should automatically acquire radar
targets and activate reported AIS targets when entering the zone.

Activated target

A target representing the automatic or manual activation of a sleeping target for the
display of additional information.

AIS

Automatic Identification System
A system which enables ships and shore stations to obtain identifying and navigation
information about other ships at sea, using an automated transponder.

Anti-clutter rain

Rain/snow clutter suppression.

Anti-clutter sea

Sea clutter suppression.

AZI

AZImuth stabilization mode

B

BCR/BCT

Bow Crossing Range and Bow Crossing Time

C

C up

Course up
Own ship’s course is pointed to the top center of the radar display.

CCRP

The Consistent Common Reference Point
A location on own ship, to which all horizontal measurements such as target range,
bearing, relative course, relative speed, CPA or TCPA are referenced, typically the
conning position of the bridge.

Clutter

Unwanted reflections on a radar screen, from sea surface, rain or snow.

COG

Course Over Ground
The direction of the ship's movement relative to the earth, measured on board the ship,
expressed in angular units from true north

CORREL

Correlation

CPA/TCPA

The distance to the Closest Point of Approach and Time to the Closest Point of
Approach. Limits are set by the operator and are related to own ship.

CTW

Course Through Water
The direction of the ship's movement through the water

D

DRIFT

The current velocity for manual correction or the current speed on the horizontal axis of
the 2-axis log is displayed.

GLOSSARY

xx

E

EBL

Electronic Bearing Line
An electronic bearing line originated from own ship’s position.

ENH

Enhance

ETA

Estimated Time of Arrival

G

Ground stabilization

A display mode in which speed and course information are referred to the ground, using
ground track input data.

H

HDG

Heading
The horizontal direction that the bow of a ship is pointing at any instant, expressed in
angular units from a reference direction .

HL

Heading line
A graphic line on a radar presentation drawn from the consistent common reference
point to the bearing scale to indicate the heading of the ship

H up

Head up
Own ship’s heading line is always pointed to the top center of the radar display.

I

IR

Radar Interference Rejecter

L

Lost AIS target

A target symbol representing the last valid position of an AIS target before the reception
of its data was lost, or its last dead-reckoned position.

Lost tracked target

One for which target information is no longer available due to poor, lost or obscured
signals.

LP

Long Pulse

M

MMSI

Maritime Mobile Service Identity

MOB

Man OverBoard

MP

Medium Pulse

N

NM

1NM=1852m

NSK

North Stabilization Kit

N up

North up
The north is always pointed to the top center of the radar display.

O

Own track

Display function of own ship’s track

GLOSSARY

xxi

P

PI

Parallel Index line

Past positions

Equally time-spaced past position marks of a tracked or AIS target and own ship.

POSN

Position

PRF

Pulse Repetition Frequency
The number of radar pulses transmitted each second.

PROC

Process
Radar signal processing function

R

Radar beacon

A navigation aid which responds to the radar transmission by generating a radar signal
to identify its position and identity

Radar cross-section

Radar cross-section of a target determines the power density returned to the radar for a
particular power density incident on the target

Range Rings

A set of concentric circles labeled by distance from CCRP.

Reference target

A symbol indicating that the associated tracked stationary target is used as a speed
reference for the ground stabilization

Relative course

The direction of motion of a target relative to own ship motion

Relative speed

The speed of a target relative to own ship’s speed data

Relative vector

A predicted movement of a target relative to own ship’s motion

RM

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

RM(R)

Relative Motion. Relative Trails.

RM(T)

Relative Motion. True Trails.

ROT

Rate Of Turn
Change of heading per time unit.

Route

A set of waypoints.

RR

Range Rings

GLOSSARY

xxii

S

SART

Search And Rescue Transponder
Radar transponder capable of operating in the 9GHz band

Sea stabilization

A display mode in which speed and course information are referred to the sea.

Sea state

Status of the sea condition due to the weather environment, expressed as a sea state 0 for
flat conditions with minimal wind, to sea state 8 for very rough sea conditions.

SET

The current direction for manual correction or the current speed on the horizontal axis of
the 2-axis log is displayed.

Sleeping AIS target

A target indicating the presence and orientation of a vessel equipped with AIS in a
certain location.

SOG

Speed Over the Ground
The speed of the ship relative to the earth, measured on board of the ship.

SP

Short Pulse

STAB

Stabilization

STW

Speed Through Water
The speed of the ship relative to the water surface.

T

TCPA

Time to Closest Point of Approach to own ship

Test target

Radar target of known characteristics used for test requirement

TM

True Motion
A display across which own ship moves with its own true motion.

Trails

Display Radar Trails (Other Ships' Trails)

True course

The direction of motion relative to ground or to sea, of a target expressed as an angular
displacement from north

True speed

The speed of a target relative to ground, or to sea

True vector

A vector representing the predicted true motion of a target, showing course and speed
with reference to the ground or sea

TT

Target Tracking.
A computer process of observing the sequential changes in the position of a radar target
in order to establish its motion. Such a target is a Tracked Target.

TTG

Time To Go.
Time to next waypoint.

TXRX

Transceiver Unit

GLOSSARY

xxiii

U

UTC

Universal Time Coordinated.
The international standard of time, kept by atomic clocks around the world.

V

VRM

Variable Range Marker
An adjustable range ring used to measure the distance to a target.

W

Waypoint

A geographical location on a route indicating an event.

GLOSSARY

xxiv

Chapter 1 GENERAL AND EQUIPMENT COMPOSITION

1.1 FUNCTIONS

1-1

INSTRUCTION MANUAL

1

Chapter 1

GENERAL AND EQUIPMENT
COMPOSITION

1.1 FUNCTIONS

This equipment is a marine radar equipment consisting of a scanner unit and an

integrated monochrome CRT display unit.

 Function of This System

 Sensitivity adjustment

 Sea clutter suppression

 Rain/snow clutter suppression

 IR (Interference rejection)

 Bearing and range measurement using a cursor, fixed/variable range markers, and

electronic bearing line

 Own ship's track display

 NAV line and marker displays

 TM (True Motion) presentation

 Self-diagnostic

 TT (manual and automatic target acquisition/automatic tracking, vector and trail

displays and alarm displays)

 AIS

Chapter 1 GENERAL AND EQUIPMENT COMPOSITION

1.2 FEATURES

1-2

1.2 FEATURES

 Easy Operation with the Soft keys and the Multi Control

Simple and easy operations are provided so that you can operate without this instruction

manual.

 Target Detection by Latest Signal Processing Technology

The system employs a signal processing technology of DSP to eliminate undesired

clutter, thus improving the target detection.

 TT and AIS functions as Standard Equipment

High performance target tracking function which can automatically track targets (up to

10 targets) and AIS target display function (up to 50 targets) are provided.

Chapter 1 GENERAL AND EQUIPMENT COMPOSITION

1.3 CONFIGURATION

1-3

INSTRUCTION MANUAL

1

1.3 CONFIGURATION

Radar Configuration and Ship's Mains

RADAR MODEL Scanner Display Unit SHIP'S MAINS

JMA-2353 NKE-2043

JMA-2354 NKE-2063

NCD-2237 12/24 VDC

Scanners and Transmitted Output Powers

SCANNER TYPE

TRANSMITTED

OUTPUT

POWER

BAND

RATE OF

ROTATION

JMA-2353 620mm Radome 4kW

JMA-2354 3.9 FT SLOT ANTENNA 6kW

X 27 rpm

Reference:

1 An optional rectifier NBD-865 is necessary for using Ship's Mains 100-200/200-240 VAC,

50/60Hz, 1.

2 If connecting to gyro with synchro signal output or step signal output, optional NSK unit

NCT-4106A is required.

Supplied accessories

PRODUCT NAME/MODEL QUANTITY JRC CODE REMARKS

Instruction manual
7ZPRD0846

1 7ZPRD0846 This manual

Installation manual
7ZPRD0848

1 7ZPRD0848

Quick manual
7ZPRD0850

1 7ZPRD0850

Read me 1 7ZPRD0853

Power cord
H-CFQ-6776

1 CFQ-6776 2m

Radar equipment cable
H-CFQ5761-15

1 CFQ5761-15

Supplied with the scanner unit
NKE-2043

Radar equipment cable
H-CFQ5746-20

1 CFQ5746-20

Supplied with the scanner unit
NKE-2063

Food
MTV303344

1 MTV303344

Chapter 1 GENERAL AND EQUIPMENT COMPOSITION

1.3 CONFIGURATION

1-4

Included accessories

PRODUCT NAME/MODEL QUANTITY JRC CODE REMARKS

Fuse

ULTSC3.15AN1

2 (For DC24V/DC32V) 3.15A

Fuse

ULTSC6.3AN1

3 (For DC12V) 6.3A

Fuse

ULTSC10AN1

2 (For spare for scanner unit) 10A

Connector

LTWBD-06FFA-ll7001

1

Connector

LTWBD-08FFA-ll7001

1

7ZXRD0031

Option

PRODUCT NAME/MODEL QUANTITY JRC CODE REMARKS

Rectifier

NBD-865

1 NBD-865 For NKE-2043/2063

Equipment cable

H-CFQ5761-05
H-CFQ5761-10
H-CFQ5761-20
H-CFQ5761-30

CFQ5761-05/10/20/30

Cable connecting the scanner unit
and the display unit
Length: 5/10/20/30 m
Cable with connectors at both
ends
For NKE-2043 (4kW)

Equipment cable

H-CFQ5746-05
H-CFQ5746-10
H-CFQ5746-15
H-CFQ5746-30

CFQ5746-05/10/15/30

Cable connecting the scanner unit
and the display unit
Length: 5/10/15/30 m
Cable with connectors at both
ends
For NKE-2063 (6kW)

External monitor output cable

H-CFQ-5762

1 CFQ5762 For JMA-2300MK2

Cable connecting a GPS compass

H-CFQ-5469

1 CFQ-5469 For JLR-20/21/30/31

Chapter 1 GENERAL AND EQUIPMENT COMPOSITION

1.4 EXTERIOR DRAWINGS

1-5

INSTRUCTION MANUAL

1

1.4 EXTERIOR DRAWINGS

Fig. 1.4-1 Exterior Drawing of Scanner Unit, Type NKE-2043

Chapter 1 GENERAL AND EQUIPMENT COMPOSITION

1.4 EXTERIOR DRAWINGS

1-6

Fig. 1.4-2 Exterior Drawing of Scanner Unit, Type NKE-2063

Chapter 1 GENERAL AND EQUIPMENT COMPOSITION

1.4 EXTERIOR DRAWINGS

1-7

INSTRUCTION MANUAL

1

Fig. 1.4-3 Exterior Drawing of Display Unit, Type NCD-2237

Chapter 1 GENERAL AND EQUIPMENT COMPOSITION

1.5 GENERAL SYSTEM DIAGRAMS

1-8

1.5 GENERAL SYSTEM DIAGRAMS

Fig. 1.5-1 General System Diagram of Radar

Reference:

Install the radar cable as far as from the cables of other radio equipment in order to prevent

other radio equipment from interfering with the radar operations.

In particular, do not install the antenna cable parallel to the cables of other radio equipment.

Chapter 2 OPERATIONS

2.1 SCREEN DISPLAY

2-1

2

INSTRUCTION MANUAL

Chapter 2 OPERATIONS

2.1 SCREEN DISPLAY

Chapter 2 OPERATIONS

2.2 PANEL

2-2

2.2 PANEL

Operate this equipment with the panel of the Display unit.

No. Key Description

①

MENU

Press: Opens/closes the menu.
Hold down: Opens the code input screen (the Adjust Menu).

②

ENT Press: Enters the selected menu item.

③

Cursor keys

Press: Selects menu items. Moves the cursor.
Hold down: Accelerates cursor movement.

④

GAIN

Hold down: Switches the sensitivity between manual and automatic

modes.

Turn: Adjusts receiving sensitivity.

⑤

SEA

Hold down: Switches the sea clutter suppression function between

manual and automatic modes.

Turn: Removes sea clutter.

⑥

RAIN

Hold down: Switches the rain/snow clutter suppression function

between manual and automatic modes.

Turn: Removes rain/snow clutter.

⑦

MULTI

Press: Opens the soft key menu.
Turn: Adjusts the selected mode. Changes the setting values.

Selects soft key menu items.

⑧

RANGE Press: Switches the range.

⑨

CLEAR

Press: Cancels menu operations.

Returns to upper menu.

Stops the alarm sound.

⑩

USER Press: Performs the user key 1 function.

⑪

BRILL

Press: Changes the display brilliance
Hold down: Opens the display brilliance.

⑫

STBY

Press: Turns on this equipment (when it is turned off).
Turns to standby state (when the equipment is

transmitting).

Press multiple keys:

Turns off the equipment when pressed together with the
TX/PRF key.

⑬

TX/PRF

Press: Starts transmitting (in standby state)
Tunes the repetition frequency (when transmitting).
Hold down: Turns off the heading line. (after preheating finished).

⑭

Soft key 1 Press: Opens the soft key menu.

⑮

Soft key 2 Press: Opens the soft key menu.

⑯

Soft key 3 Press: Opens the soft key menu.

⑰

Soft key 4 Press: Opens the soft key menu.

Chapter 2 OPERATIONS

2.2 PANEL

2-3

2

INSTRUCTION MANUAL

 Key Operations

Press: Press a key, then release the key before 2 seconds elapse.

Hold down: Press a key, and hold down the key for 2 seconds or more.

Press multiple keys: Press multiple keys simultaneously.

Turn: Turn a control in clockwise/counterclockwise direction.

Chapter 2 OPERATIONS

2.3 POWER ON/OFF

2-4

2.3 POWER ON/OFF

CAUTION

A malfunction may occur if the power in the ship is
instantaneously interrupted during operation of the radar. In this
case, the power should be turned on again.

Note:

 Wait for about 2 seconds before turning on the power again.

 Immediately after the radar is installed, at start of the system after it has not

been used for a long time, or after the magnetron is replaced, preheat the

equipment in the standby state for 20 to 30 minutes before setting it into the

transmit state.

 If the preheating time is short, the magnetron causes sparks, resulting in its

unstable oscillation.

Start transmission on a short-pulse range and change the range to the longer

pulse ranges in turn. If the transmission is unstable in the meantime,

immediately place the system back into the standby state and maintain it in the

standby state for 5 to 10 minutes before restarting the operation. Repeat these

steps until the operation is stabilized.

 Power On

1 Press the [STBY] key on the display unit to turn on the display unit.

The display unit is turned on, and the preheating time screen is displayed.

When the preheating time is over, the preheating time screen disappears.

Chapter 2 OPERATIONS

2.3 POWER ON/OFF

2-5

2

INSTRUCTION MANUAL

 Starting transmission

1 Press the [TX/PRF] key.

The radar starts transmission and the antenna starts rotating.

Reference:

The radar cannot start transmission if you press the [TX/PRF] key while the preheating time

is displayed.

 Stopping transmission

1 Press the [STBY] key on the display unit.

The radar stops transmission and the antenna stops rotating.

Maintain the standby state if radar observation is restarted in a relatively short time.

Only pressing the [TX/PRF] key starts observation.

 Power Off

1 Press the [STBY] key and the [TX/PRF] key simultaneously.

The system is turned off.

WARNING

When conducting maintenance work, make sure to turn off the
power and unplug the power connector J1 of the display unit so
that the power supply to the equipment is completely cut off.
Some equipment components can carry electrical current even
after the power switch is turned off, and conducting maintenance
work without unplugging the power connector may result in
electrocution, equipment failure, or accidents.

Chapter 2 OPERATIONS

2.4 SENSITIVITY ADJUSTMENT

2-6

2.4 SENSITIVITY ADJUSTMENT

Sensitivity can be adjusted.

Adjust the noise on the display unit to achieve better observation state.

CAUTION

If sensitivity is set too high, unnecessary signals such as noises in
the receiver and false echoes increase to lower target visibility.
At the same time, if sensitivity is set too low, detection of targets
such as ships and dangerous objects may be hindered.
Therefore, sensitivity must always be set to an optimal level.

 Noise Adjustment

1 Turn the [GAIN] control.

Turn the [GAIN] control clockwise to increase sensitivity.

Turn the [GAIN] control counterclockwise to decrease sensitivity.

The sensitivity adjustment screen appears when turning the [GAIN] control.

Sensitivity can be adjusted between 0 and 100.

When turning the [GAIN] control, the gain control indication is stretched or shrunk.

Chapter 2 OPERATIONS

2.4 SENSITIVITY ADJUSTMENT

2-7

2

INSTRUCTION MANUAL

 [GAIN] Control

Turning the [GAIN] control clockwise increases receiving sensitivity and extends the

radar observation range. If the sensitivity is too high, the receiver noise increases

reducing the contrast between the targets and the background video. As a result, the

targets become obscure on the radar display. To observe densely crowded targets or

short-range targets, turn the [GAIN] control counterclockwise to reduce the sensitivity so

that the targets are easy to observe. However, be careful not to overlook important small

targets.

 Switching to Manual/Automatic Mode

1 Hold down the [GAIN] control.

The sensitivity can be switched between manual and automatic modes.

The mode is indicated as shown below.

Chapter 2 OPERATIONS

2.5 SEA CLUTTER SUPPRESSION

2-8

2.5 SEA CLUTTER SUPPRESSION

The sea clutter suppression function suppresses sea clutter returns.

CAUTION

When using the sea clutter suppression function, never set the
suppression level too high canceling out all image noises from the
sea surface at close range. Detection of not only echoes from
waves but also targets such as other ships or dangerous objects
will become inhibited.
When using the sea clutter suppression function, make sure to
choose the most appropriate image noise suppression level.

 Manual Sea Clutter Suppression Function

Adjust the sea clutter returns on the display unit to achieve better observation state.

1 Turn the [SEA] control.

Turn the [SEA] control clockwise to suppress sea clutter returns.

Turn the [SEA] control counterclockwise to intensify sea clutter returns.

The sea clutter suppression adjustment screen appears when turning the [SEA] control.

Sea clutter suppression can be adjusted between 0 and 100.

When turning the [SEA] control, the sea clutter control indication is stretched or

shrunk.

Chapter 2 OPERATIONS

2.5 SEA CLUTTER SUPPRESSION

2-9

2

INSTRUCTION MANUAL

 [SEA] Control

The sea clutter suppression function suppresses sea clutter returns by decreasing the

receiving sensitivity on a short range. Turn the [SEA] control clockwise to heighten the

effect of sea clutter suppression. However, be careful that excessive suppression causes

low signal-strength targets such as buoys and boats to disappear from the radar display.

 Automatic Sea Clutter Suppression Function

Sea clutter suppression can be performed in accordance with the level of sea clutter. Use

this automatic mode when sea clutter returns vary in direction.

1 Hold down the [SEA] control.

Automatic function is selected.

Even when the automatic function is selected, you can manually perform fine

adjustments by turning the [SEA] control.

The sea clutter suppression adjustment screen appears when turning the [SEA]

control. Sea clutter suppression can be adjusted between 0 and 100.

When the sea clutter suppression (Auto) is set to "0"

When the sea clutter suppression (Auto) is set to "10"

Chapter 2 OPERATIONS

2.5 SEA CLUTTER SUPPRESSION

2-10

 Canceling Automatic Sea Clutter Suppression Function

1 Hold down the [SEA] control.

Automatic function is canceled.

The mode is indicated as shown below.

Reference:

When the automatic mode is selected for the sea clutter suppression function, the

rain/snow clutter suppression function is switched to the manual mode.

The sea clutter suppression function (Auto) and the rain/snow clutter suppression function

(Auto) cannot be selected at the same time.

Chapter 2 OPERATIONS

2.6 RAIN/SNOW CLUTTER SUPPRESSION

2-11

2

INSTRUCTION MANUAL

2.6 RAIN/SNOW CLUTTER SUPPRESSION

This function suppresses rain/snow clutter returns.

CAUTION

When using the sea clutter suppression function, never set the
suppression level too high canceling out all image noises from the
rain or snow at close range. Detection of not only echoes from the
rain or snow but also targets such as other ships or dangerous
objects will become inhibited.
When using the sea clutter suppression function, make sure to
choose the most appropriate image noise suppression level.

 Manual Rain/Snow Clutter Suppression Function

Adjust the rain/snow clutter returns on the display unit to achieve better observation state.

1 Turn the [RAIN] control.

Turn the [RAIN] control clockwise to suppress rain/snow clutter returns.

Turn the [RAIN] control counterclockwise to intensify rain/snow clutter returns.

The rain/snow clutter suppression adjustment screen appears when turning the [RAIN]

control.

Rain/snow clutter suppression can be adjusted between 0 and 100.

When turning the [RAIN] control, the rain/snow clutter control indication is stretched

or shrunk.

Chapter 2 OPERATIONS

2.6 RAIN/SNOW CLUTTER SUPPRESSION

2-12

 [RAIN] Control

When the [RAIN] control is turned clockwise, targets hidden by rain/snow clutter returns

appear on the radar display. However, be careful that excessive suppression may cause

small targets to be overlooked. Since the rain/snow clutter suppression function also has

the effect of suppressing sea clutter, the suppression efficiency improves when using

with the [SEA] control. In general, set the value to "0".

 Automatic Rain/Snow Clutter Suppression Function

Rain/snow clutter suppression can be performed in accordance with the level of

rain/snow clutter. Use this automatic mode when rain/snow clutter returns vary in

direction.

1 Hold down the [RAIN] control.

Automatic function is selected.

Even when the automatic function is selected, you can manually perform fine

adjustments by turning the [RAIN] control.

The rain/snow clutter suppression adjustment screen appears when turning the

[RAIN] control. Rain/snow clutter suppression can be adjusted between 0 and 100.

When the rain/snow clutter suppression (Auto) is set to "0"

When the rain/snow clutter suppression (Auto) is set to "10"

Chapter 2 OPERATIONS

2.6 RAIN/SNOW CLUTTER SUPPRESSION

2-13

2

INSTRUCTION MANUAL

 Switching to Manual/Automatic Mode

1 Hold down the [RAIN] control.

Automatic function is canceled.

The mode is indicated as shown below.

Reference:

When the automatic mode is selected for the rain/snow clutter suppression function, the

sea clutter suppression function is switched to the manual mode.

The sea clutter suppression function (Auto) and the rain/snow clutter suppression function

(Auto) cannot be selected at the same time.

Chapter 2 OPERATIONS

2.7 SOFT KEY OPERATION

2-14

2.7 SOFT KEY OPERATION

This radar can be operated with the soft keys and the MULTI control placed on the front

panel of the display unit. You can access to functions without opening the menu screen.

To change the default settings, press the [MENU] key to open the menu screen.

This section describes the operation with the soft keys and the MULTI control.

 Keys for operation

 Soft keys 1, 2, 3 and 4

 [MULTI] control

 [CLEAR] key

 Soft Key Operations (Example: Opening "Display Screen")

This section describes how to operate with the soft keys shown below.

 TUNE/PRF

 Display Screen

 TM/RM

 Bearing Mode

 Pulse Length

 Off Center

 Symbol Display

 MOB

 Mark

 Line

 Own Track

 Event Mark

 AIS Filter

 TLL TX

Reference:

The functions for the following soft key menu are initially set to off. To use these functions,

set the menu items to on by referring to "■ Soft Key Menu Setting" in "4.10 Control" of the

Installation Manual.

Symbol DISP, MOB, Mark, Line, Own Track, Event Mark, AIS Filter and TLL TX

Chapter 2 OPERATIONS

2.7 SOFT KEY OPERATION

2-15

2

INSTRUCTION MANUAL

1 Press the [[MULTI] control.

2 Turn the [MULTI] control to select Display Screen on the soft key menu.

Reference:

When a certain time elapses without any key operation after selecting an item on the soft

key menu, the soft key menu and the soft key display automatically disappear.

"Display Screen" is
color-inverted.

Press the [MULTI] control.

Chapter 2 OPERATIONS

2.7 SOFT KEY OPERATION

2-16

 Turning the [MULTI] control clockwise

To select "Own Track" - "TLL TX"



▼



Reference:

When the item at the bottom of the soft key menu is color-inverted, the soft key menu does

not scroll any more even if the control is turned clockwise.

"Own Track" is color-inverted.

"Event Mark" is color-inverted.

"TLL TX" is color-inverted. "AIS Filter" is color-inverted.

Chapter 2 OPERATIONS

2.7 SOFT KEY OPERATION

2-17

2

INSTRUCTION MANUAL

 Turning the [MULTI] control counterclockwise

To select "VRM2" - "EBL1"



▼



Reference:

When the item at the top of the soft key menu is color-inverted, the soft key menu does not

scroll any more even if the control is turned counterclockwise.

"VRM2" is color-inverted.

"VRM1" is color-inverted.

"EBL1" is color-inverted. "EBL2" is color-inverted.

Chapter 2 OPERATIONS

2.7 SOFT KEY OPERATION

2-18

 Soft key 1

The screen changes to the layout set in the section "4.13.7 LOCATION CHANGE" -

"1. Screen1".

 Soft key 2

The screen changes to the layout set in the section "4.13.7 LOCATION CHANGE" -

"2. Screen2".

 Soft key 4

Each time you press the soft key 4 when "Numerical INFO" is set, the soft key display

toggles in the following order:
"Numerical INFO" → "TT Detail" → "AIS Detail" → "Own AIS INFO"
→ "MOB INFO".

"Screen 1" is color-inverted.

"Screen 2" is color-inverted.

"Numerical INFO" is color-inverted.

Press the [soft key 1].

Press the [soft key 2].

Press the [soft key 4].

Chapter 2 OPERATIONS

2.7 SOFT KEY OPERATION

2-19

2

INSTRUCTION MANUAL

 Closing the soft key menu

Press the [CLEAR] key to turn off the soft key menu and the soft key display.

 Soft keys 1, 2, 3 and 4

If any of the soft keys is pressed when the soft key menu is turned off, the soft

key menu and the soft key display which were displayed previously appear

again.

 "Soft key Operations (Example: Opening "Brilliance")

This section describes how to operate with the soft keys shown below.

 EBL1

 EBL2

 VRM1

 VRM2

 Vector Length

 RADAR Trails

 AIS

 TT

 Alarm1

 Alarm2

 Brilliance

Reference:

The functions for the following soft key menu are initially set to off. To use these functions,

set the menu items to on by referring to "■ Soft Key Menu Setting" in "4.10 Control" of the

Installation Manual.

Vector Length, AIS, TT and Alarm2

Press any of the soft keys.

Chapter 2 OPERATIONS

2.7 SOFT KEY OPERATION

2-20

1 Press a soft key.

2 Turn the [MULTI] control to select Brilliance on the soft key menu.

"Brilliance" is activated.

Reference:

Perform the same operations for the other soft key menu items to activate the functions.

 Soft key 1

When the soft key 1 is pressed, the monitor brill is switched.

This cannot be switched in the factory setting.

To enable switching, perform the display setting for the soft keys.

Select "Brilliance" and

press the control.

"Day1" is color-inverted.

Press the [soft key 1].

Press the [MULTI] control.

Chapter 2 OPERATIONS

2.7 SOFT KEY OPERATION

2-21

2

INSTRUCTION MANUAL

 Soft key 2

"Monitor BRILL" is color-inverted, and is activated.

Press the [BRILL] key to adjust at eight levels.

 Soft key 3

"Panel BRILL" is color-inverted, and is activated.

 Setting with the soft key menu

To determine the setting of the soft key menu item, press one of the followings:

 [Multi] control

 [CLEAR] key

The soft key menu item is determined, then the soft key menu and the soft key display

are turned off and the setting is finished.

Press the [softkey 2].

"Monitor BRILL" is color-inverted.

Press the [softkey 3].

"Panel BRILL" is color-inverted.

Chapter 2 OPERATIONS

2.7 SOFT KEY OPERATION

2-22

 Soft keys 1, 2, 3 and 4

If any of the soft keys is pressed when the soft key menu is turned off, the soft

key menu and the soft key display which were displayed previously appear again,

and the function is activated.

2.7.1 MEASURING TARGET BEARING (EBL)

Measures bearing with EBLs (Electronic Bearing Lines).

1 Select EBL1 EBL2 on the soft key menu.

When "EBL1" is selected, the soft key menu is turned off and "BRG Operation" of

the soft key display is color-inverted.

"EBL1" is activated.

When "EBL2" is selected, the soft key menu is turned off and "BRG Operation" of

the soft key display is color-inverted.

"EBL2" is activated.

Select "EBL1" and press the control.

Select "EBL2" and press the control.

Press any of the soft keys.

Chapter 2 OPERATIONS

2.7 SOFT KEY OPERATION

2-23

2

INSTRUCTION MANUAL

2 Operate with the soft keys.

Soft key 1: Display Off Display

"Display Off": "EBL1"/"EBL2" is not displayed.

"Display": "EBL1"/"EBL2" is displayed.

Reference:

When "Display Off" is selected for the soft key 1, the equipment performs the followings:

 EBL is not displayed.

 The soft key menu and the soft key display disappears, and EBL function is terminated.

Soft key 2: Floating

When pressing the soft key 2, "Floating" is color-inverted.

The starting point of the currently operating EBL can be switched from the

center of the radar display (floating off) to floating state.

Press the cursor keys to move the starting point of "EBL1"/"EBL2".

Press the [ENT] key at the starting point of "EBL1"/"EBL2" you want to move.

The starting point of "EBL1"/"EBL2" is determined.

Reference:

The floating position of the EBL’s starting point can be fixed on the radar display or at

specific latitude and longitude.

Floating function must be turned on to use floating.

For details of settings, refer to "2.10.1 SETTING OPERATIONS FOR EBLS

(ELECTRONIC BEARING LINES)".

Soft key 3: True Relative

Sets whether to display EBLs (Electronic Bearing Lines) in true bearing mode or

relative bearing mode.

"True": "EBL1"/"EBL2" is displayed in true bearing mode.

"Relative": "EBL1"/"EBL2" is displayed in relative bearing mode.

Reference:

Bearing signal input is required to display true motion.

Chapter 2 OPERATIONS

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Soft key 4: BRG Operation

When "EBL1" or "EBL2" of the soft key menu is selected, "BRG Operation" of

the soft key display is color-inverted.

Turn the [MULTI] control to change the direction of "EBL1"/"EBL2".

To determine the setting of "EBL1"/"EBL2", press one of the followings: the

[MULTI] control, the soft key 4 or the [CLEAR] key.

The bearing is set and operation state ends.

Reference:

When "EBL1"/"EBL2" is not selected on the soft key menu, press the soft key 4 to activate

the EBL function.

 EBL Bearing Display

The bearing values of EBL1 and EBL2 displayed on the PPI are indicated at the radar

display.

Even if EBL1 and EBL2 are not displayed, the bearing values are displayed.

2.7.2 MEASURING RANGE TO TARGET (VRM)

Measures the range with VRM (Variable Range Marker).

1 Select VRM1 VRM2 on the soft key menu.

When "VRM1" is selected, the soft key menu is turned off and "DIST Operation" of

the soft key display is color-inverted.

"VRM1" is activated.

Select "VRM1" and press the control.

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INSTRUCTION MANUAL

When "VRM1" is selected, the soft key menu is turned off and "DIST Operation" of

the soft key display is color-inverted.

"VRM2" is activated.

2 Operate with the soft keys.

Soft key 1: Display Off Display

"Display Off": "VRM1"/"VRM2" is not displayed.

"Display": "VRM1"/"VRM2" is displayed.

Reference:

When "Display Off" is selected for the soft key 1, the equipment performs the followings:

 VRM is not displayed.

 The soft key menu and the soft key display disappears, and VRM function is

terminated.

Soft key 2: NM km sm

Selects units of "VRM1"/"VRM2" range.

Soft key 3: Not available

Soft key 4: DIST Operation

When "VRM1" or "VRM2" of the soft key menu is selected, "DIST Operation" of

the soft key display is color-inverted.

Turn the [MULTI] control to operate "VRM1"/"VRM2".

Press the [MULTI] control, the soft key 4 or the [CLEAR] key to determine the

"VRM1" and "VRM2" settings. Distance is set and operation state ends.

Reference:

When "VRM1"/"VRM2" is not selected on the soft key menu, press the soft key 4 to

activate the VRM function.

Select "VRM2" and press the control.

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 Variable Range Marker

VRM1 is represented as a broken line, and VRM2 as a dotted line. When EBL1 is

displayed, VRM1 marker appears on the EBL1. When EBL2 is displayed, VRM2 marker

appears on the EBL2.

If the starting point of an EBL is offset, the center of a VRM marker is positioned at the

starting point of the EBL.

2.7.3 SETTING VECTORS

Sets TT and AIS vectors.

Reference:

 The bearing input is required to display TT and AIS vectors.

 This function is initially set to off. To use this function, set this to on by referring to "■

Soft Key Menu Setting" in "4.10 Control" of the Installation Manual.

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2

INSTRUCTION MANUAL

1 Select Vector Length on the soft key menu.

The soft key menu disappears and "Vector Length" of the soft key display is

color-inverted.

"Vector Length" is activated.

2 Operate with the soft keys.

Soft key 1: True Relative

Switches between true vector mode and relative vector mode.

Soft key 2: Not available

Soft key 3: Not available

Soft key 4: Vector Length

When "Vector Length" of the soft key menu is selected, "Vector Length" of the

soft key display is color-inverted.

Vector time can be set in minutes in the range 1 to 60 min.

Turn the [MULTI] control to set the vector length.

Reference:

When "Vector Length" is not selected on the soft key menu, press the soft key 4 to activate

the Vector Length function.

 Vector display

Note:

 When a target or own ship changes its course, or when a new target is

acquired, its vector may not reach a given level of accuracy until three minutes

or more has passed after such course change or target acquisition.

Even if three minutes or more has passed, the vector may include an error

depending upon the. tracking conditions.

Select "Vector Length" and press the control.

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A vector to represent a target's predicted position can presented in the True vector or

Relative vector mode. In each mode, a vector length can be freely changed for a time

interval of 1 to 60 minutes.

 Vector Modes

 True Vector Mode

In the true vector mode, the direction of a target vector indicates the true course of the

target and its vector length is proportional to its speed.

In this mode, own ship's vector is displayed as shown below.

In this mode, the movements of other ships around own ship can be accurately and easily

monitored.

However, no CPA RING can appear in this mode.

The relative vector is

not displayed

True vector

Own ship’s position

HL

 Relative Vector Mode

The relative vector does not represent the true motion of the target, but its relative

relation with own ship. This means that a target with its relative vector directed to own

ship (passing through the CPA LIMIT ring) will be a dangerous target.

In the Relative Vector mode, it can be seen at a glance where the CPA LIMIT of the

dangerous target is.

The true vector is

not displayed

Relative vector

CPA ring

HL

Therefore, the TRUE/REL mode shall optionally be used for the purpose of observation:

the TRUE vector mode for grasping the true aspect of a target, and the REL vector mode

for grasping a target's closest point of approach (CPA).

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INSTRUCTION MANUAL

 Vector Length

The vector length of a target is proportional to its speed, and the vector time can be

switched in a range of 1 to 60 minutes.

The diagram below illustrates a vector length of a target for six minutes, and the tip of

the vector represents the target's position expected to reach six minutes later.

2.7.4 DISPLAYING OTHER SHIP'S TRACKS (RADAR
TRAILS)

Sets radar trails.

Other ships' movements and speeds can be monitored from the lengths and directions of

their trails, serving for collision avoidance.

1 Select RADAR Trails on the soft key menu.

The soft key menu disappears and "Trails" of the soft key display is color-inverted.

"RADAR Trails" is activated.

Select "RADAR Trails" and press the control.

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2 Operate with the soft keys.

Soft key 1: REF Level1 REF Level2 REF Level3 REF Level4

Selects a radar video level required for plotting radar trails.

"REF Level1" is the lowest level while "REF Level4" is the highest level.

 When radar trails are plotted with unwanted waves, change to a higher level.

 To thin radar trails, change to a higher level.

 If radar trails are plotted in snatches, change to a lower level.

Soft key 2: Time/Cont Off Time/Cont On

This function superimpose-displays time radar trails and continuous radar trails.

When "Time/Cont Off" is selected, this superimpose-display is disabled.

When "Time/Cont On" is selected, this superimpose-display is enabled.

Soft key 3: True Relative

Switches the radar trail display between true and relative motion trail modes.

True motion trails:

The system plots the absolute motion trails of a target, irrespective of

the own ship’s position.

The operator can easily judge the course and speed of the target.

The system does not plot the trails of land and other fixed targets.

Relative motion trails:

The system plots the trails of a target at a position relative to the own

ship.

The operator can easily judge whether the target is approaching the

own ship.

While the own ship is moving, the system also plots the trails when the

own ship is turning.

Reference:

True bearing signal input and speed signal input are required to display radar trails in true

motion trail mode.

Soft key 4: Trails

When "RADAR Trails" of the soft key menu is selected, "Trails" of the soft key

display is color-inverted.

Turn the [MULTI] control to change the radar trail length.

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2

INSTRUCTION MANUAL

Reference:

When "RADAR Trails" is not selected on the soft key menu, press the soft key 4 to activate

the RADAR Trails function.

The time for "Trails" changes as shown below.

Off/15sec/30sec/1min/2min/3min/4min/5min/6min/10min/15min/All

2.7.5 AIS OPERATIONS

The AIS function shows the target's information on the radar display, using other ship's

information sent out from the AIS unit.

Reference:

 The inputs of heading, latitude/longitude and AIS signal are required to display AIS.

 For detail settings of AIS functions, see "2.13 SETTING TT/AIS".

 This function is initially set to off. To use this function, set this to on by referring to "■

Soft Key Menu Setting" in "4.10 Control" of the Installation Manual.

1 Select AIS on the soft key menu.

The soft key menu disappears and "Target Select" of the soft key display is

color-inverted.

"AIS" is activated.

2 Operate with the soft keys.

Soft key 1: Numerical Data Retrieved Vessel DEST Ship

"Numerical Data": The mode is set to AIS numerical data display selection mode.

"Retrieved Vessel": The mode is set to AIS retrieved vessel selection mode.

"DEST Ship": The mode is set to AIS destination ship selection mode

Soft key 2: Setting/Release

AIS data display (numerical display, retrieved vessel and destination ship) can be

set/released.

Select "AIS" and press the control.

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Soft key 3: AIS List AIS Number SEL

"AIS List": AIS list is displayed.

"AIS Number SEL": AIS list is not displayed.

Soft key 4: Target Select

When "AIS" of the soft key menu is selected, "Target Select" of the soft key

display is color-inverted.

Sets the numerical display, retrieved vessel and destination ship.

Reference:

When "AIS" is not selected on the soft key menu, press the soft key 4 to activate the AIS

function.

 AIS Retrieved Vessel

AIS retrieved vessel is the function to preferentially display the user-specified ship.

 AIS Destination Ship

AIS destination ship is the function to display the user-specified ship as the destination.

 AIS data (Numerical Data, Retrieved Vessel, DEST Ship)

 Displaying AIS data (Operation with the soft key menu)

1 Press the cursor keys to select "AIS", then press the [ENT] key.

 When "Numerical Data" is displayed above the soft key 1

 When "Retrieved Vessel" is displayed above the soft key 1

 When "DEST Ship" is displayed above the soft key 1

The specified target data is displayed and the symbol is changed.

The target data will remain on the radar display until the target is lost, or until

another target is designated.

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2

INSTRUCTION MANUAL

Note:

 Numerical Data, AIS retrieved vessel and AIS destination ship can be operated

when

Soft key 1: Numerical Data Retrieved Vessel DEST Ship

are selected.

 Displaying AIS data (Operation with the [ENT] key)

AIS data (numerical display) can be done by the [ENT] key operation without displaying

the soft key menu.

1 Press the cursor keys to select "AIS", then press the [ENT] key.

The selected AIS numerical display is set, and the "AIS" soft key is displayed.

Note:

 If operating with the [ENT] key when the soft key menu is closed, the equipment

performs the followings:

On the AIS symbol: Opens the AIS soft key and the numerical display of AIS.

On the TT symbol: Opens the TT soft key and the numerical display of TT.

Not on the AIS or TT symbol:

Opens the TT soft key, it will be acquired.

 If operating with the [ENT] key when the AIS symbol overlaps the TT symbol,

the numerical display of AIS symbol takes priority.

Reference:

 After setting the AIS numerical display, perform the same operations in "● Displaying

AIS data (Operation with the soft key menu)".

 AIS data (numerical data) is displayed when the soft key 4 is set to "AIS Detail" in the

section "2.7.10 SETTING DISPLAY SCREEN".

 Releasing AIS data display

1 Press the cursor keys to select "AIS", then press the [ENT] key.

Numerical Data, AIS retrieved vessel and AIS destination ship are canceled.

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 Displaying the other AIS data

Reference:

 AIS retrieved vessel can be set by specifying MMSI number.

For details of settings, see "2.13.8 SETTING AIS RETRIEVED VESSEL".

 AIS destination ship can be set by specifying MMSI number.

For details of settings, see "2.13.7 SETTING AIS DESTINATION SHIP".

 Displaying AIS data

1 Turn the [MULTI] control to select "AIS", then press the soft key 3

"Setting/Release".

 When "Numerical Data" is displayed above the soft key 1

 When "Retrieved Vessel" is displayed above the soft key 1

 When "DEST Ship" is displayed above the soft key 1

The specified target data is displayed and the symbol is changed.

The target data will remain on the radar display until the target is lost, or until

another target is designated.

When the target for the numerical display is set, "#" is displayed in the AIS list.

"#" disappears when the target is released.

When the AIS retrieved vessel is set, "*" is displayed in the AIS list.

"*" disappears when it is released.

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2

INSTRUCTION MANUAL

When the AIS destination ship is set, "$" is displayed in the AIS list.

"$" disappears when it is released.

Reference:

AIS data (Numerical Data) is displayed when the soft key 4 is set to "AIS Detail" in the

section "2.7.10 SETTING DISPLAY SCREEN"

Note:

 Numerical Data, AIS retrieved vessel and AIS destination ship can be operated

when

Soft key 1: Numerical Data Retrieved Vessel DEST Ship

are selected.

 Releasing AIS data display

1 Turn the [MULTI] control to select "AIS", then press the soft key 3

"Setting/Release".

Numerical Data, AIS retrieved vessel and AIS destination ship are canceled.

 AIS Symbols

This section describes types and definitions of AIS symbols.

Symbol Definition Remarks

Activated AIS target This symbol shows the position of an AIS target on the PPI.

The shape is an isosceles triangle, and its vertex shows the

approximate heading direction.

If heading bearing information or COG information is not

received, the target is displayed toward PPI.

Selection When selecting an AIS target to display its numeric information,

this symbol is superimpose-displayed on the selected target.

This is displayed with a split square.

AIS SART This symbol shows the position of an AIS SART target on the

PPI.

This is displayed with a circle and cross lines.

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 Setting AIS Symbol Display

For details of displaying/hiding of the AIS symbols, see Section "2.7.15 SETTING

SYMBOL ".

2.7.6 TT OPERATIONS

The target tracking function calculates the course and speed of a target by automatically

tracking the target's move.

Note:

 There are the following limitations on use of the target acquisition and target

tracking functions.

[I] Resolution between adjacent targets and swapping during automatic target

tracking

Depending on the particular distance and echo size, resolution between

adjacent targets during automatic target tracking usually ranges somewhere

between 0.03 to 0.05 NM. If multiple targets approach each other, resolution will

become about 0.05 NM and this may cause the system to regard them as one

target and thus to swap them or lose part of them. Such swapping or less of

targets may also occur if the picture of the target being tracked is affected by

rain/snow clutter returns or sea clutter returns or moves very close to land.

[II] Intensity of echoes and the target tracking function

The intensity of echoes and the tracking function have a correlationship, and

thus the target will be lost if no echoes are detected during seven scans in

succession.

If a lost target exists, therefore, radar gain must be increased to support

detection of the target. If, however, radar gain is increased too significantly, sea

clutter returns or other noise may be erroneously detected and tracked as a

target, and resultingly, a false alarm may be issued.

To execute accurate tracking, it becomes necessary to appropriately adjust the

[GAIN], [SEA] and [RAIN] controls of the radar so that the target to be acquired

and tracked id clearly displayed on the radar display.

Inappropriate settings of these adjustments reduce the reliability / accuracy of

automatic tracking.

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INSTRUCTION MANUAL

CAUTION

Use the radar only as a navigation aid.
The final navigation decision must always be made by the operator
him/herself.
Making the final navigation decision based only on the radar display
may cause accidents such as collisions or running aground.

Use the target tracking function (TT) only as a navigation aid. The
final navigation decision must always be made by the operator
him/herself.
Making the final navigation decision based only on the target
tracking function (TT) information may cause accidents.
The target tracking function (TT) information such as vector, target
numerical data, and alarms may contain some errors. Also, targets
that are not detected by the radar cannot be acquired or tracked.
Making the final navigation decision based only on the radar display
may cause accidents such as collisions or running aground.

Reference:

This function is initially set to off. To use this function, set this to on by referring to "■ Soft

Key Menu Setting" in "4.10 Control" of the Installation Manual.

1 Select TT on the soft key menu.

The soft key menu disappears and "Target Select" of the soft key display is

color-inverted.

"TT" is activated.

2 Operate with the soft keys.

Soft key 1: Numerical Data TT Acquisition TT Release

"Numerical Data": The mode is set to TT numerical data display selection mode.

"TT Acquisition": The mode is set to TT acquisition selection mode.

"TT Release": The mode is set to TT release selection mode

"TT" is color-inverted.

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Soft key 2: Setting/Release

Target tracking data (numerical display) can be set/released.

Soft key 3: TT List TT Number SEL

"TT List": TT list is displayed.

"TT Number SEL": TT list is not displayed.

Soft key 4: Target Select

When "TT" of the soft key menu is selected, "Target Select" of the soft key

display is color-inverted.

Sets the numerical display, TT acquisition and TT release.

Reference:

When "TT" is not selected on the soft key menu, press the soft key 4 to activate the TT

function.

 Target acquisition

This equipment has automatic acquisition and manual acquisition.

 Manual acquisition (Operation with the soft key menu)

Note:

 Manual acquisition can be operated when

Soft key 1: TT Acquisition

are selected.

 If the range is switched, the acquisitions of targets acquired before switching the

range are released when those targets get out of the echo radius.

1 Press the cursor keys to select the target for acquisition with the cursor, then

press the [ENT] key.

An initial acquisition symbol appears.

After one minute elapses, the target tracking symbol and vector are displayed.

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2

INSTRUCTION MANUAL

Reference:

When the number of targets tracked has reached to the maximum (10 targets), any new

target is not acquired.

Delete the unnecessary targets, then acquire new targets.

 Manual acquisition (Operation with the [ENT] key)

Target can be acquired by the [ENT] key operation without displaying the soft key menu.

Note:

 If operating with the [ENT] key when the soft key menu is closed, the equipment

performs the followings:

On the AIS symbol: Opens the AIS soft key and the numerical display of AIS.

On the TT symbol: Opens the TT soft key and the numerical display of TT.

Not on the AIS or TT symbol:

Opens the TT soft key, it will be acquired.

 If operating with the [ENT] key when the AIS symbol overlaps the TT symbol,

the numerical display of AIS symbol takes priority.

1 Press the cursor keys to select the target for acquisition with the cursor, then

press the [ENT] key.

An initial acquisition symbol appears, and the "TT" soft key is displayed.

After one minute elapses, the target tracking symbol and vector are displayed.

Reference:

 When operating the [ENT] key on a TT symbol, the "TT" soft key and the target tracking

data are displayed.

 When operating the [ENT] key on an AIS symbol, the "AIS" soft key and the selected

AIS data (numerical display) are displayed.

 Automatic acquisition

1 Perform the procedure as shown below to start automatic acquisition.

Open Alarm1 from the soft key menu.

Soft key 1: On

Soft key 2: AZ1

Chapter 2 OPERATIONS

2.7 SOFT KEY OPERATION

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Reference:

 If untracked targets intrude into the automatic acquisition area in the conditions that

maximum number of targets (10 targets) is under tracking, the targets acquired

automatically will be cancelled in the order of lower levels of danger.

 For details of automatic acquisition operation, refer to "2.7.7 DISPLAYING THE

RADAR ALARM AND AUTOMATIC ACQUISITION OPERATIONS".

 Deleting the unnecessary targets

Note:

 Releasing manual acquisition can be operated when

Soft key 1: TT Release

are selected.

1 Press the cursor keys to select the target for releasing with the cursor, then

press the [ENT] key.

The target's vectors and symbols disappear, and only the radar video remains.

 Target tracking data (numerical display)

Note:

 The numerical display can be operated when

Soft key 1: Numerical Data

are selected.

 Displaying tracking target data (Operation with the soft key menu)

1 Press the cursor keys to select the target for the numerical display with the

cursor, then press the [ENT] key.

The specified target data is displayed and the symbol is changed.

The target data will remain on the radar display until the target is lost and its vector

disappears, or until another target is designated.

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INSTRUCTION MANUAL

Reference:

 If a target with the mark “○” is designated, only its true bearing and range will appear

until its vector appears.

 Tracking target data is displayed when the soft key 4 is set to "TT Detail" in the section

"2.7.10 SETTING DISPLAY SCREEN"

 Displaying tracking target data (Operation with the [ENT] key)

The target tracking data can be displayed by the [ENT] key operation without displaying

the soft key menu.

Note:

 If operating with the [ENT] key when the soft key menu is closed, the equipment

performs the followings:

On the AIS symbol: Opens the AIS soft key and the numerical display of AIS.

On the TT symbol: Opens the TT soft key and the numerical display of TT.

Not on the AIS or TT symbol:

Opens the TT soft key, it will be acquired.

 If operating with the [ENT] key when the AIS symbol overlaps the TT symbol,

the numerical display of AIS symbol takes priority.

1 Press the cursor keys to select the target for numerical display with the

cursor, then press the [ENT] key.

The selected target tracking numerical display is set, and the "TT" soft key is

displayed.

Reference:

After setting the TT numerical display, perform the same operations in "● Displaying

tracking target data (Operation with the soft key menu)".

 Releasing tracking target data display

1 Press the cursor keys to select the target for the numerical display with the

cursor, then press the [ENT] key.

Numerical data display is released.

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 Displaying the other tracking target data

Note:

 The numerical display can be operated when

Soft key 4: Target Select

are selected.

 Displaying tracking target data

1 Turn the [MULTI] control to select the target for the numerical display, then

press the soft key 3 "Setting/Release".

The specified target data is displayed and the symbol is changed.

The target data will remain on the radar display until the target is lost and its vector

disappears, or until another target is designated.

When the target for the numerical display is set, "#" is displayed in the TT list.

"#" disappears when the target is released.

Reference:

 If a target with the mark “○” is designated, only its true bearing and range will appear

until its vector appears.

 Tracking target data is displayed when the soft key 4 is set to "TT Detail" in the section

"2.7.10 SETTING DISPLAY SCREEN".

 Releasing tracking target data display

1 Turn the [MULTI] control to select the target for the numerical display, then

press the soft key 3 "Setting/Release".

Numerical data display is released.

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INSTRUCTION MANUAL

 Target Tracking Symbols

This section describes types and definitions of target tracking symbols.

Symbol Definition Remarks

Initial acquisition This symbol is displayed where the target is acquired.

This is displayed with a circle of thin dotted line.

This symbol is also used for the target acquired automatically.

Tracking target This symbol is displayed for the target which becomes the tracking

target after acquired.

This is displayed with a circle of thick line.

New tracking target This symbol is displayed for the target which becomes the tracking

target after automatically acquired.

This is displayed with a circle of thick line.

This is changed to a normal tracking target when acknowledged to

new target alarm.

Dangerous target This symbol is displayed when the tracking target becomes a

dangerous target with CPA/TCPA decision.

This is displayed with a circle of thick line. This blinks while this is

not acknowledged. Then, it stops blinking when it is

acknowledged.

When there are some dangerous targets, targets which is not

acknowledged blinks, and targets which has been acknowledged

does not blink.

Lost When a tracking target is no longer detected as a target, this symbol

is superimpose-displayed on the target symbol.

This is displayed with cross lines.

This is superimpose-displayed on tracking targets, new tracking

targets or dangerous targets.

Selection When selecting a tracking target to display its numeric information,

this symbol is superimpose-displayed on the selected target.

This is displayed with a split square.

This is superimpose-displayed on tracking targets, new tracking

targets or dangerous targets.

 Setting Tracking Target Symbol Display

For details of displaying/hiding of the tracking target symbols, see Section "2.7.15

SETTING SYMBOL ".

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2.7.7 DISPLAYING THE RADAR ALARM AND AUTOMATIC
ACQUISITION OPERATIONS

With a fan-shaped range made, the radar alarm can give an alarm to ships that enter or

depart from the range.

Reference:

"Alarm2" is initially set to off. To use this function, set this to on by referring to "■ Soft Key

Menu Setting" in "4.10 Control" of the Installation Manual.

1 Select Alarm1 Alarm2 on the soft key menu.

The soft key menu disappears and "Make Zone" of the soft key display is

color-inverted.

"Alarm1" is activated.

The soft key menu disappears and "Make Zone" of the soft key display is

color-inverted.

"Alarm2" is activated.

"Alarm1" is color-inverted.

"Alarm2" is color-inverted.

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INSTRUCTION MANUAL

2 Operate with the soft keys.

Soft key 1: When Alarm1 is selected

Off On

When Alarm2 is selected

Off On

Turns on/off the alarm display.

Soft key 2: When Alarm1 is selected

Sector Rectangle AZ1

When Alarm2 is selected

Sector Rectangle AZ2

"Sector":
Displays a fan-shaped radar alarm.

"Rectangle":
Displays a rectangle-shaped radar alarm.

"AZ1" "AZ2":
Displays the acquisition area.

Soft key 3: When Alarm1 is selected

In Out

When Alarm2 is selected

In Out

Sets the alarm issuing conditions for the radar alarm.

"In": An alarm is issued when ship enters.

"Out": An alarm is issued when ship departs.

Soft key 4: When Alarm1 is selected

Make Zone

When Alarm2 is selected

Make Zone

"Make Zone" "Make Zone":

When "Make Zone" of the soft key menu is selected, "Target

Select" of the soft key display is color-inverted.

Reference:

When "Alarm1"/"Alarm2" is not selected on the soft key menu, press the soft key 4 to

activate the Alarm1/Alarm2 function.

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 Automatic acquisition operations

Reference:

If untracked targets intrude into the acquisition area in the conditions that maximum

number of targets (10 targets) is under tracking, the targets acquired automatically will be

cancelled in the order of lower levels of danger.

 Turning on the automatic acquisition

1 Perform the following settings.

Soft key 1: When Alarm1 is selected

On

When Alarm2 is selected

On

Soft key 2: When Alarm1 is selected

AZ1

When Alarm2 is selected

AZ2

The acquisition area is activated.

An initial acquisition symbol appears for an acquired target.

After one minute elapses, the target tracking symbol is displayed.

 Turning off the automatic acquisition

1 Perform the following settings.

Soft key 1: When Alarm1 is selected

Off

When Alarm2 is selected

Off

The acquisition area is deactivated.

The acquisition area disappears from the radar screen, however, the tracking target

which has been already acquired are continued to be tracked.

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INSTRUCTION MANUAL

 Creating a fan-shaped radar alarm/acquisition area

1 Perform the following settings.

Soft key 2: When Alarm1 is selected

Sector AZ1

When Alarm2 is selected

Sector AZ2

The range setting is started for a fan-shaped radar alarm/acquisition area.

2 Press the cursor keys to move the cursor to the first point (setting of the start

bearing and range), then press the [ENT] key.

3 Press the cursor keys to move the cursor to the second point (setting of the

end range), then press the [ENT] key.

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4 Press the cursor keys to move the cursor to the third point (setting of the end

bearing), then press the [ENT] key.

5 A fan-shaped radar alarm/acquisition area is determined.

Reference:

After the fan-shaped radar alarm/acquisition area is determined, the soft key menu and the

soft key display disappears, and Alarm1 function is terminated.

 Creating a rectangle-shaped radar alarm

1 Perform the following settings.

Soft key 2: When Alarm1 is selected

Rectangle

When Alarm2 is selected

Rectangle

The range setting is started for a rectangle-shaped radar alarm.

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INSTRUCTION MANUAL

2 Press the cursor keys to move the cursor to the first point (setting of the start

latitude and longitude), then press the [ENT] key.

3 Press the cursor keys to move the cursor to the second point (setting of the

end latitude), then press the [ENT] key.

4 Press the cursor keys to move the cursor to the third point (setting of the end

latitude), then press the [ENT] key.

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5 Rectangle-shaped area

Rectangle-shaped area is set with Nup as reference.

Reference:

After the fan-shaped radar alarm/acquisition area is determined, the soft key menu and the

soft key display disappears, and Alarm1 function is terminated.

2.7.8 SETTING DISPLAY BRILLIANCE

Display brilliance can be changed.

1 Select Brilliance on the soft key menu.

2 Operate with the soft keys.

Soft key 1: Day1 Day2 Day3 Dusk Night

Display brilliance and panel brilliance are changed in accordance with the setting

of "Main Menu" - "Brilliance".

Each time the soft key 1 is pressed when "Day1" is displayed above the soft key
1, the setting changes in order of "Day2" → "Day3" → "Dusk" → "Night".

If "Main Menu" - "Display Color" - "Day1" - "Soft Key" is set to "Off", "Day1"

is not displayed above the soft key 1.

Operate the same way for "Day2", "Day3", "Dusk" and "Night".

"Brilliance" is color-inverted.

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INSTRUCTION MANUAL

Reference:

In the factory setting, "Soft Key" menu items for "Day2", "Day3", "Dusk" and "Night" are set

to "Off" in "Main Menu" - "Brilliance". To use these, set the items to "On".

Soft key 2: Monitor BRILL

Press the soft key 2 to adjust Monitor BRILL at eight levels. Also, you can press

the [BRILL] key to adjust at eight levels.

Soft key 3: Panel BRILL

Press the soft key 3 to adjust Monitor BRILL at four levels.

Soft key 4: Not available

2.7.9 ADJUSTING SCANNER

There are automatic tuning mode (AUTO) and manual tuning mode (MAN). In the

automatic tuning mode, transmission and receiving frequencies are tuned and adjusted

automatically. In the manual tuning mode, tuning is carried out using the MULTI

control.

1 Select TUNE/PRF on the soft key menu.

The "TUNE/PRF" soft key display appears.

2 Operate with the soft keys.

Soft key 1: AUTO Tune Manual Tune

Selects whether to use the tuning function in automatic or manual mode.

"TUNE/PRF" is color-inverted.

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Soft key 2: Manual Tuning

When pressing the soft key 2, "Manual Tuning" is color-inverted.

 When "MAN" is displayed above the soft key 1

You can manually adjust using the MULTI control.

Turn the MULTI control to adjust tuning.

Adjust the video to be the largest by observing the tune indicator bar.

Because the tune indicator bar is the guide during manual tuning, adjust the

tune indicator bar to the maximum.

 When "AUTO" is displayed above the soft key 1

"Manual Tuning" is not color-inverted. The equipment automatically adjust

tuning. Tuning is adjusted when transmission is started, the range is changed

or pulse length is changed.

Soft key 3: PRF Fine Tuning

When pressing the soft key 3, "PRF Fine Tuning" is color-inverted.

The PRF fine tuning screen appears.

Fine-tune the transmitting repetition frequency of the transmitter in the range 90

to 100%.

If radar's interference patterns are concentrically displayed, increment or

decrement the set value by 3 to 4 in order to heighten the effect of interference

rejection.

The same operation can be performed by pressing the [TX/PRF] key several

times.

Use the [MULTI] control to perform PRF fine tuning between 0 and 31.

When the soft key 3 "PRF Fine Tuning" is pressed, color-inverted display returns

to normal color.

Soft key 4: Not available

Tune indicator bar

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INSTRUCTION MANUAL

2.7.10 SETTING DISPLAY SCREEN

Sets the layout of radar screen.

1 Select Display Screen on the soft key menu.

The "Display Screen" soft key display appears.

2 Operate with the soft keys.

Soft key 1: Screen1

The screen changes to the layout set with the menu "Adjust Menu" - "Display

Screen" - "Location Change" - "Screen1".

Soft key 2: Screen2

The screen changes to the layout set with the menu "Adjust Menu" - "Display

Screen" - "Location Change" - "Screen2".

Soft key 3: Not available

Soft key 4: Numerical INFO TT Detail AIS Detail Own AIS INFO

MOB INFO

Each time you press the soft key 4 when "Numerical INFO" is set, the soft key

display toggles in the following order:

"Numerical INFO" → "TT Detail" → "AIS Detail" → "Own AIS INFO"
→ "MOB INFO".

"Display Screen" is color-inverted.

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 Numerical INFO

If "Screen1" has been set in the menu

When "Numerical INFO" is displayed above the soft key 4, "Numerical INFO" which

has been set in the menu "Screen 1" is displayed.

If "Screen2" has been set in the menu

When "Numerical INFO" is displayed above the soft key 4, "Numerical INFO" which

has been set in the menu "Screen 2" is displayed.

Numerical INFO

Numerical INFO

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INSTRUCTION MANUAL

 TT Detail

When "Numerical INFO" is displayed above the soft key 4, press the soft key 4 to

display "TT Detail" on the radar screen.

 AIS Detail

When "TT Detail" is displayed above the soft key 4, press the soft key 4 to display "AIS

Detail" on the radar screen.

TT Detail

A

IS Detail

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 Own AIS INFO

When "AIS Detail" is displayed above the soft key 4, press the soft key 4 to display

"Own AIS INFO" on the radar screen.

 MOB INFO

When "Own AIS INFO" is displayed above the soft key 4, press the soft key 4 to display

"MOB INFO" on the radar screen.

Own AIS INFO

MOB INFO

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INSTRUCTION MANUAL

 Hiding the heading line

1 Hold down the [TX/PRF] key.

The ship's heading line is hidden while the [TX/PRF] key is held down.

The ship's heading line (HL) that presents the course of own ship is always shown on

the radar display.

The heading line is hidden while the [TX/PRF] key is held down, so the targets on

the heading line can be easily observed.

2.7.11 SWITCHING TO TRUE/RELATIVE MOTION DISPLAY
MODE

Switches between true and relative motion display modes.

Reference:

The bearing signal input is required to display true motion.

1 Select TM/RM on the soft key menu.

The "TM/RM" soft key display appears.

"TM/RM" is color-inverted.

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2 Operate with the soft keys.

Soft key 1: RM

Press the soft key 1 to switch to relative motion display.

Own ship returns to the center of the radar screen.

Soft key 2: TM

Press the soft key 2 to switch to true motion display.

Soft key 3: TM Reset

Press the soft key 3 during the true motion display mode, the own ship position is

reset, as same as switching from relative motion display to true motion display.

Own ship starts from the reset position.

Soft key 4: Not available

 True motion display

In the true motion display mode, the own ship's position on the radar screen moves

depending upon its speed and course and the influence of the current. Land and other

fixed targets are fixed on the radar screen and only actually moving targets move on the

radar screen. When the true motion display mode is selected, the own ship's position is

set to 66% of the display radius in the opposite direction to its course allowing for the

influence of the current. Own ship starts moving depending upon its speed and course

and the influence of the current. Subsequently, when own ship arrives at the position of

66% of the display radius, it is automatically reset to its initial position at 66% of the

display radius in the opposite direction to its course allowing for the influence of the

current.

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INSTRUCTION MANUAL

2.7.12 SWITCHING BEARING DISPLAY MODE

Selects the azimuth of the radar video.

Reference:

The bearing signal input is required to display N Up/C Up.

1 Select Bearing Mode on the soft key menu.

The "Bearing Mode" soft key display appears.

2 Operate with the soft keys.

Soft key 1: H Up

Relative bearing mode [Head Up] is selected.

Soft key 2: N Up

True bearing mode [North Up] is selected.

Soft key 3: C Up

Course-up bearing mode [Course Up] is selected.

Soft key 4: C Up Reset

In Course-up mode, reset the course-up display.

"Bearing Mode" is color-inverted.

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 Relative Bearing Mode

The video is displayed so that the ship's heading line points to the zenith of the PPI (0°

on range rings).

Since targets are displayed in their directions relative to the ship's heading line, the

operator can view the video in the same field of view as in operating the ship at sea. This

mode is suitable for watching over other ships.

 True Bearing Mode

The video is displayed so that the zenith of the PPI (0° on range rings) points to the due

north.

Fixed targets do not flicker and are easily identified on the chart, and the true bearing of

a target can easily be read out.

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INSTRUCTION MANUAL

 Course-up Bearing Mode

By pressing the soft key 3, the own ship's course is fixed pointing to the zenith of the PPI

(0° on range rings) points to the due north. In the same way as in the North-up mode,

fixed targets do not flicker, and are stabilized even if the ship is yawing. The bearing of

the heading line varies by the same shift of own ship's course. To change the course,

press the soft key 3 several times to select the Course-up mode, and set a new course.

2.7.13 SELECTING TRANSMITTER PULSE LENGTH

Switches the transmitter pulse length.

1 Select Pulse Length on the soft key menu.

The "Pulse Length" soft key display appears.

2 Operate with the soft keys.

Soft key 1: SP1 SP2 SP3 MP1 MP2 LP1 LP2

The transmitter pulse length is switched.

Press the soft key 1 to change the setting in order of:
"SP1" → "SP2" → "SP3" → "MP1" → "MP2" → "LP1" → "LP2".

"Pulse Length" is color-inverted.

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Reference:

Options of the transmitter pulse length vary depending on the range.

For details, see "7.2 SCANNER".

Soft key 2: Not available

Soft key 3: Not available

Soft key 4: Not available

 Effects of transmitter pulse length

 SP :

The transmitter pulse length becomes shorter, and the range resolution improves.

The effect of suppressing sea clutter returns and rain/snow clutter returns heightens.

Recommended condition for selection:

In bays / harbors where targets are densely crowded

Rough sea state due to torrential rain or stormy weather

 MP :

The normal transmitter pulse length is set.

Both range resolution and sensitivity are appropriately set.

Recommended condition for selection:

General navigation

 LP :

The transmitter pulse length becomes longer, and sensitivity improves.

Small targets are zoomed and are easy to observe.

When the sea state is bad, detection performance decreases.

Recommended condition for selection:

Detection of small targets in good weather conditions

Usable transmitter pulse length varies according to the type of scanner unit being used

and the observation range being used. For usable pulse length, see the section

"SCANNER" in "SPECIFICATIONS".

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INSTRUCTION MANUAL

2.7.14 MOVING OWN SHIP’S DISPLAY POSITION

The own ship's position can be moved from the display center to any position within

66% of the display radius.

This function is convenient for observing a wide coverage in any direction.

1 Select Off Center on the soft key menu.

The "Off Center" soft key display appears.

2 Operate with the soft keys.

Soft key 1: Off On

Turns on/off the off center function.

"Off": The own ship's position returns to the center.
"On": The cross cursor mark + will appear at the own ship's position on

the radar screen.

Soft key 2: Off Center1 Off Center2 Off Center3 Custom

Load Position

"Off Center1": The own ship's position is moved to 66% position of the

display radius.

"Off Center2": Te own ship's position is moved to 44% position of the

display radius.

"Off Center3": The own ship's position is moved to 22% position of the

display radius.

"Custom": The own ship's position can be moved to any position.

When pressing the soft key 4, "Edit" is color-inverted.

Move the cross cursor mark + (own ship’s display position) to a

desired position by using the cursor keys.

Press the ENT key to fix the own ship’s display position at the cross

cursor mark + position.

"Load Position": The saved own ship’s display position is displayed.

"Off Center" is color-inverted.

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Soft key 3: Save Position

When "Custom" is displayed above the soft key 2, press the soft key 3 to save the

current own ship’s display position.

Soft key 4: Edit

When "Custom" is displayed above the soft key 2, press the soft key 4 to move

the own ship’s display position to any position.

2.7.15 SETTING SYMBOL DISPLAY

Displays/hides the following functions.

 TT

 AIS

 Marks/lines

 Own track

Reference:

This function is initially set to off. To use this function, set this to on by referring to "■ Soft

Key Menu Setting" in "4.10 Control" of the Installation Manual.

1 Select Symbol Display on the soft key menu.

The "Symbol Display" soft key display appears.

2 Operate with the soft keys.

Soft key 1: TT Display TT Display Off

"TT Display": The TT symbols are displayed.

"TT Display Off": The TT symbols are hidden.

However, the dangerous targets are shown.

Soft key 2: AIS Display AIS Display Off

"AIS Display": The AIS symbols are displayed.

"AIS Display Off": The AIS symbols are hidden.

"Symbol Display" is color-inverted.

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INSTRUCTION MANUAL

Soft key 3: Mark Display Mark DISP Off

"Mark Display": The marks and lines are displayed.

"Mark DISP Off": The marks and lines are hidden.

Soft key 4: Track Display Track DISP Off

"Track Display": The own track is displayed.

"Track DISP Off": The own track is hidden.

2.7.16 SETTING MOB

MOB is the mark of a person or an object overboard. If someone or something falls

overboard, set MOB to memorize the latitude/longitude of the location and display the

mark. Also, a straight line from the own ship to the mark is displayed.

Reference:

 Bearing signal input and latitude/longitude data input are required to display MOB.

 This function is initially set to off. To use this function, set this to on by referring to "■

Soft Key Menu Setting" in "4.10 Control" of the Installation Manual.

1 Select MOB on the soft key menu.

The "MOB" soft key display appears.

2 Operate with the soft keys.

Soft key 1: MOB Setting

Sets the MOB at the own ship's position.

Soft key 2: MOB Release

The displayed MOB is cleared.

Soft key 3: Not available

Soft key 4: Not available

"MOB" is color-inverted.

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2.7.17 MARKING

Marks can be indicated at arbitrary positions on the screen.

A mark created on the screen holds the latitude and longitude.

Reference:

 Bearing signal input and latitude/longitude data input are required to use marks.

 Up to 200 lines/marks can be displayed for lines, marks and event marks in total.

 When the marks are hidden in "2.7.15 SETTING SYMBOL DISPLAY", marks cannot

be created.

 This function is initially set to off. To use this function, set this to on by referring to "■

Soft Key Menu Setting" in "4.10 Control" of the Installation Manual.

1 Select Mark on the soft key menu.

The "Mark" soft key display appears.

2 Operate with the soft keys.

Soft key 1: X + Y

The mark type of a target is changed.

Soft key 2: Not available

Soft key 3: Delete

Press to delete the marks of selected type.

Hold down to delete all marks.

The confirmation dialog window is displayed.

(Marks and event marks are not distinguished when deleting.)

"Mark" is color-inverted.