JRC JMA-5212-4/6, JMA-5222-7/9, JMA-5212-4HS/6HS, JMA-5212-4, JMA-5212-6 User Manual

MARINE RADAR

MARINE RADAR

EQUIPMENT

EQUIPMENT

INSTRUCTION

INSTRUCTION

MANUAL

MANUAL

JMA-5212-4/6

JMA-5212-4/6

JMA-5222-7/9

JMA-5222-7/9

JMA-5212-4HS/6HS

JMA-5212-4HS/6HS

ٟٟٟ

PRECAUTIONS BEFORE OPERATION

ٟٟٟ

ع

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 an instantaneous 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.

ع

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

ٟٟٟ

ڏ

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.

ڏ

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

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

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

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
oN

or, pinch his nostrils with your fingers to

prevent air from leaking. oO

(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.

Fig. 1 Mouth-to mouth respiration

ڏ

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. Commit the victim to a medical specialist depending on

his condition. (Never give him alcoholic drinks.) 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

- i -

PREFACE

Thank you very much for purchasing the JRC marine radar equipment, JMA-5200M2 series.
This equipment is a marine radar equipment designed to obtain safe operation of marine ships.
This equipment consists of a radar signal transmitter-receiver unit, a LCD display unit and a scanner unit as its
main units.

٨ Before operating the equipment, be sure to read this instruction manual carefully for correct operation.
٨ Maintain this instruction manual so that operators can refer to it at anytime.

Refer to this manual when any inconvenience or defect occurs.

- ii -

٨

Before Operation٨

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.
Please 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 equipment are not operated correctly.

CAUTION

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

Examples of Pictorial Indication

Electric Shock

The U 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 z mark represents instruction.
Detailed contents of the instruction (“Disconnect the power plug “ in the
example on the left.) is shown in the mark.

Warning Label

There is a warning label on the top cover of the equipment.
Do not try to remove, break or modify the label.

- iii -

٨

PRECAUTIONS٨

DANGER

Never conduct inspection or repair work of equipment
components.
Inspection or repair work by uncertified personnel may
result in fire hazard or electrocution.
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 outputted from the rectifier even
after the indicator and the radar are turned off. Failure to
comply may result in equipment failure, or death or
serious injury due to 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.

Make sure to turn off the antenna operation switch.
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.

- iv -

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 of the antenna
Make sure to stay away from the microwave-radiating
antenna during transmission at least by the distances
indicated below. If the distance between you and the
front-center of the antenna is shorter than the distances
indicated below, exposure to microwave may result in
physical injuries (damage to the eye in particular).

NKE-2103 ( radio-density : 10 W/m

2

): 0.6 m

NKE-2254 ( radio-density : 10 W/m

2

): 0.6 m

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.

- v -

WARNING

When conducting maintenance work, make sure to turn
off the power and unplug the power connector J1 of the
radar process 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.

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 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.

When disposing of used lithium batteries, be sure to
insulate the batteries by attaching a piece of adhesive
tape on the



and { terminals. Failure to comply may
cause heat generation, explosion, or fire when the
batteries get shorted out.

Do not change MBS Level/Area unless absolutely
necessary.
Incorrect adjustment will result in deletion of nearby
target images and thus collisions may occur resulting in
death or serious injuries.

- vi -

CAUTION

When using the [AUTO SEA] 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 [AUTO SEA] function, make sure to
choose the most appropriate image noise suppression
level.

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.

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.

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.

- vii -

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.

CAUTION

When using the [AUTO RAIN] 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 [AUTO RAIN] function, make sure to
choose the most appropriate image noise suppression
level.

When the chart position is corrected, the display will be
shifted away from the actual position. With this in mind,
navigate your ship with attention to the surroundings.
Otherwise, this may cause accidents.

Compact Flash Cards can be used with this system. The
following shows the recommendations in use. However
they do not guarantee that CF cards may properly work
with this system. Depending on the hardware or software,
the cards will not work correctly.
Any damage including loss of data caused by using the
data created on this system is out of warranty.
Important files should be backed up therefore.

- viii -

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.

CAUTION

When a large value is set as an association condition, a
tracked target near an AIS target is identified as the AIS
target and may thus disappear from the display.
For example, when a pilot vessel equipped with the AIS
function (a small target which is not a tracked target)
goes near a cargo vessel which is a tracked target
without the AIS function, the tracked target symbol for the
cargo vessel may disappear.

Target Tracking Function Test is provided to test if the
target tracking function is operating normally. Thus, do
not use the function except when you test the target
tracking function.
Note especially that, if this function is used during actual
navigation, simulated targets are displayed and may
become confused with other actual targets. Therefore,
never use this function during actual navigation.

- ix -

Any adjustments must be made by specialized service
personnel.
Incorrect settings may result in unstable operation.

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.

When a small value is set as a hysteresis condition, a
tracked target near an AIS target is identified as the AIS
target and may thus disappear from the display.
For example, when a pilot vessel equipped with the AIS
function (a small target which is not a tracked target)
goes near a cargo vessel which is a tracked target
without the AIS function, the tracked target symbol for the
cargo vessel may disappear.

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.

CAUTION

When setting a 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.

Optimal values have been set for Video Level and Vector
Constant; therefore, never change their values unless
absolutely necessary. Failure to comply may result in
accidents that would lower target tracking performance.

- x -

CAUTION

Do not change the quantization level settings unless
absolutely necessary. If set at an inappropriate value,
the acquisition or tracking function of the target tracking
function (TT) deteriorates, and this may lead to accidents.

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.

Make sure that two or more staff member work together
when replacing the LCD. If only one person attempts to
replace the LCD, he/she may drop it and become injured.

Do not directly touch the inverter circuit of the LCD
display with a bare hand since high voltage temporarily
remains in the circuit even after the main power is shut
off.
Failure to comply may result in electrocution.

Any adjustments must be made by specialized service
personnel.
Failure to comply may result in accidents or equipment
failure.

- xi -

The Mounting Point of the Warning Label

Warning Label

Warning Label

NCD-4380 Radar Process Unit

Front face Back face

NWZ-164 LCD Monitor

- xii -

NKE-2103-6/6HS Scanner Unit

NKE-2254-7/9/6HS Scanner Unit

Warning Label

Warning Label

- xiii -

- xiv -

EQUIPMENT APPEARANCE

Scanner Unit Type NKE-2103-4 (4 feet)

Scanner Unit Type NKE-2103-6 (6 feet)

Scanner Unit Type NKE-2254-7 (7 feet)

Scanner Unit Type NKE-2254-9 (9 feet)

- xv -

NDC-1460 Processor Unit (Desktop Type)

NWZ-164 Display Unit (Desktop Type)

NCE-7699A Operation Unit (Desktop Type)

NCD-4380 Display Unit (Desktop Type)

- xvi -

CONTENTS

PREFACE................................................................................................................i

BEFORE OPERATION ........................................................................................... ii

PRECAUTIONS..................................................................................................... iii

THE MOUNTING POINT OF THE WARNING LABEL ........................................... xi

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

GLOSSARY........................................................................................................ xxv

1. GENERAL AND EQUIPMENT COMPOSITION

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

1.1.1 FUNCTION OF THIS SYSTEM........................................................... 1-1

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

1.3 CONFIGURATION .................................................................................. 1-4

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

1.5 GENERAL SYSTEM DIAGRAMS......................................................... 1-14

2. SCREEN DISPLAY AND OPERATION PANEL

2.1 EXAMPLE OF DISPLAY ......................................................................... 2-1

2.2 NAMES AND FUNCTIONS OF CONTROL PANEL KEYS...................... 2-2

2.3 FUNCTIONS OF SOFTWARE BUTTONS.............................................. 2-7

2.3.1 Software Buttons for Area 1

(Top-Left Corner of the Radar Display)............................................. 2-8

2.3.2 Software Buttons for Area 2

(Bottom-Left Corner of the Radar Display) ..................................... 2-10

2.3.3 Software Buttons for Area 3

(Top-Right Corner of the Radar Display)......................................... 2-12

2.3.4 Software Buttons for Area 4

(Bottom-Right Corner of the Radar Display) ................................... 2-14

2.3.5 Software Buttons for Area 5

(Own Ship Information Area) (Right Side of the Radar Display) ..... 2-15

- xvii -

2.3.6 Software Buttons for Area 6

(Other Ship Information Area) (Right Side of the Radar Display).... 2-16

2.3.7 Software Buttons for Area 7

(Panel Display Area) (Right Side of the Radar Display) ..................2-18

2.3.8 Software Buttons for Area 7

(Panel Display Area) (Right Side of the Radar Display) ..................2-19

2.3.9 Software Buttons for Area 8 (Operation and Message Area)

(Right Side of the Radar Display).................................................... 2-20

3. BASIC OPERATION

3.1 FLOW OPERATION ................................................................................3-1

3.1.1 Power ON and Start the System .........................................................3-2

3.1.2 Observe and Adjust Video...................................................................3-3

3.1.3 Acquire and Measure Data..................................................................3-4

3.1.4 Display and Measure with Reference to CCRP................................... 3-4

3.1.5 End the Operation and Stop the System .............................................3-5

3.2 MENU COMPOSITION ........................................................................... 3-6

3.2.1 Overview of Menu Structure................................................................ 3-6

3.2.2 Basic Menu Operation.........................................................................3-7

3.3 PREPARATION....................................................................................... 3-9

3.3.1 Adjust Display Brilliance [BRILL] .........................................................3-9

3.3.2 Adjust Contrast.................................................................................... 3-9

3.3.3 Adjust Operation Panel Brilliance [PANEL] ....................................... 3-10

3.3.4 Switch Day/Night Mode [DAY/NIGHT]............................................... 3-10

3.3.5 Adjust Brilliance of Information on Radar Display

(Brilliance Setting)........................................................................... 3-11

3.3.6 Adjust Sound Volume (Buzzer Volume).............................................3-12

3.3.7 Reset Alarm Buzzer [ALARM ACK] ...................................................3-12

3.3.8 Set Display Color ..............................................................................3-13

3.4 BASIC OPERATIONS ...........................................................................3-15

3.4.1 Start Transmission [TX/PRF]............................................................. 3-15

3.4.2 Stop Transmission [STBY].................................................................3-15

3.4.3 Change Range (Observation Range Scale) [RANGE+/-] .................. 3-15

3.4.4 Tune .................................................................................................. 3-16

3.4.5 Control Sensitivity [GAIN/PL] ............................................................3-17

3.4.6 Suppress Sea Clutter [AUTO-SEA] ...................................................3-18

3.4.7 Suppress Rain/Snow Clutter [AUTO-RAIN].......................................3-20

3.4.8 Reject Radar Interference [IR]........................................................... 3-22

3.4.9 Hide/Display Range Rings (RINGS)..................................................3-23

- xviii -

3.4.10 Hide Ship’s Heading Line (HL OFF)................................................ 3-23

3.4.11 Hide Graphics Information on Radar Display (Graphic Display)...... 3-24

3.5 GENERAL OPERATIONS..................................................................... 3-25

3.5.1 Move Cross Cursor Mark by Trackball.............................................. 3-25

3.5.2 Use EBLs (Electronic Bearing Lines) [EBL1/2] ................................. 3-26

3.5.3 Set EBL Operation (EBL1 /2 Setting) ................................................ 3-29

3.5.4 Display Variable Range Markers [VRM1/VRM2] ............................... 3-32

3.5.5 Display Parallel Cursors (Parallel Cursor)......................................... 3-35

3.5.6 Display Parallel Index Lines (Parallel Index Line) ............................. 3-42

3.5.7 Switch Bearing Display Mode [AZI MODE] ....................................... 3-49

3.5.8 Switch True/Relative Motion Display Mode [TM/RM] ........................ 3-50

3.5.9 Move Own Ship’s Display Position [OFF CENT]............................... 3-51

3.5.10 Display Radar Trails (Other Ships’ Trails) [TRAILS] ........................ 3-52

3.5.11 Switch Pulse Length (GAIN/PL) ...................................................... 3-55

3.5.12 Expand Targets (Target Enhance)................................................... 3-56

3.5.13 Use Video Process (Process) ......................................................... 3-57

3.5.14 Zoom............................................................................................... 3-58

3.5.15 Use Marker [MOB] .......................................................................... 3-59

3.5.16 Marking [MARK].............................................................................. 3-60

3.5.17 Operate EBL Maneuver Function (EBL Maneuver)......................... 3-61

3.5.18 Operate Multi-Function Control [MULTI] ......................................... 3-63

3.5.19 Operate User Key Switches [User Key 1/2] .................................... 3-65

3.5.20 Automatic Acquisition...................................................................... 3-67

3.5.21 Radar Alarm (Radar Alarm)............................................................. 3-70

3.6 USE OWN SHIP'S TRACK DATA (OWN TRACK).............................. 3-75

3.6.1 Display Own Ship’s Track (Display Own Track) ................................ 3-75

3.6.2 Set Own Ship’s Track Data Storage Interval (Own Track Interval).... 3-77

3.6.3 Cancel Storing of Own Ship’s Track Data (Own Track Memory) ....... 3-78

3.6.4 Clear Own Ship’s Track Data (Clear Own Track) .............................. 3-79

3.7 DISPLAY CHARTS ............................................................................... 3-80

3.7.1 Insert/Remove a Card....................................................................... 3-80

3.7.2 Display Coastline ROM Card Produced by JRC ............................... 3-82

3.7.3 Display ERC Card............................................................................. 3-83

3.7.4 Fill Charts (Fill Land Area) ................................................................ 3-84

3.8 DISPLAY NAVIGATION INFORMATION

(NAV INFORMATION DISPLAY)........................................................... 3-85

3.8.1 Display Waypoint Marks (Waypoint Display)..................................... 3-85

3.8.2 Display Navigation Information (NAV Display Setting)...................... 3-86

3.8.3 Create/Edit Navigation Information (Edit User Map) ......................... 3-87

- xix -

3.8.4 Set Navigation Information (User Map Setting) ................................. 3-93

3.8.5 Set and Display Geodetic System ...................................................3-100

3.9 APPLIED OPERATIONS .....................................................................3-102

3.9.1 Set Radar Signal Processing (Process Setting) .............................. 3-102

3.9.2 Set Radar Trails (RADAR Trails Setting)......................................... 3-105

3.9.3 Set Cursor (Cursor Setting)............................................................. 3-110

3.9.4 Set Screen(Screen Setting)............................................................. 3-112

3.9.5 Set Scanner (TXRX Setting) ...........................................................3-122

3.9.6 Set Chart Display (Map Setting) ......................................................3-124

3.9.7 Set LORAN C (LORAN C Correction) .............................................3-136

3.10 USE FUNCTION SWITCH [FUNC] .....................................................3-137

3.10.1 Operation Procedure ..................................................................... 3-137

3.10.2 Function Setting Menu Items......................................................... 3-138

3.10.3 Overview of Function Operations .................................................. 3-139

3.10.4 Overview of Stored Function Setting Data..................................... 3-143

3.10.5 Personal Information (PIN Setting)................................................3-144

3.11 USING CARD......................................................................................3-147

3.11.1 Save in and Transfer to Card (MEM CAPA/Copy) ......................... 3-148

3.11.2 Erase/Initialize Card Memory (CLR MEM/INIT Card) .................... 3-153

4. MEASUREMENT OF RANGE AND BEARING

4.1 MEASUREMENT USING THE CURSOR WITH THE TRACKBALL........ 4-1

4.2 MEASUREMENT BY RANGE RINGS.....................................................4-2

4.3 MEASUREMENT BY EBLS AND VRMS................................................. 4-3

4.4 MEASUREMENT BETWEEN TWO OPTIONAL POINTS .......................4-4

5. OPERATION OF TT AND AIS

5.1 PREPARATION....................................................................................... 5-2

5.1.1 Collision Avoidance .............................................................................5-3

5.1.2 Definitions of Symbols.........................................................................5-6

5.1.3 TT Data Display................................................................................. 5-11

5.1.4 Cursor Modes (Cursor)...................................................................... 5-13

5.1.5 Setting Collision Decision Criteria (CPA/TCPA Limit) ........................ 5-14

5.1.6 Setting CPA Ring (CPA Ring) ............................................................ 5-15

5.1.7 Setting Vectors (Vector Time).......................................................... 5-16

5.1.8 Setting the GPS antenna location ................................................... 5-17

- xx -

5.2 TT OPERATION.................................................................................... 5-18

5.2.1 Acquiring Target [ACQ] ..................................................................... 5-19

5.2.2 Canceling Unwanted Targets ............................................................ 5-22

5.2.3 Tracking Target Data Display [TGT DATA] ........................................ 5-23

5.2.4 Displaying Target ID No. (Target Number Display)............................ 5-25

5.2.5 Input of target information (TT Individual Setting) ............................. 5-26

5.2.6 Reference Target (Reference)........................................................... 5-29

5.2.7 TT Test Menu .................................................................................... 5-31

5.3 AIS OPERATION .................................................................................. 5-37

5.3.1 Restrictions ....................................................................................... 5-37

5.3.2 Initial Setting ..................................................................................... 5-38

5.3.3 Setting AIS Display Function (AIS Function)..................................... 5-40

5.3.4 Activating AIS Targets (Activate AIS) ................................................ 5-41

5.3.5 Deactivating AIS Targets (Deactivate AIS) ........................................ 5-42

5.3.6 Displaying Numeric Data of AIS Targets (TGT DATA) ....................... 5-43

5.3.7 Displaying Target ID No. (Target Number Display)............................ 5-48

5.3.8 Setting AIS Filter (AIS Filter Setting)................................................. 5-49

5.3.9 Conditions for Deciding AIS Target to be Lost................................... 5-53

5.3.10 Setting AIS Alarm (AIS Alarm Setting)............................................. 5-54

5.4 TARGET ASSOCIATION ASSESSMENT (ASSOCIATION SETTING) . 5-55

5.4.1 Target Association Assessment ........................................................ 5-55

5.4.2 Priority............................................................................................... 5-56

5.4.3 Azimuth............................................................................................. 5-56

5.4.4 Distance............................................................................................ 5-57

5.4.5 Course .............................................................................................. 5-57

5.4.6 Speed................................................................................................ 5-58

5.4.7 Hysteresis ......................................................................................... 5-59

5.4.8 Non-Hysteresis ................................................................................. 5-60

5.4.9 AIS Target to be Assessed................................................................ 5-61

5.5 ALARM DISPLAY.................................................................................. 5-62

5.6 TRACK DISPLAY.................................................................................. 5-68

5.6.1 Display Past Tracks (Past Position) .................................................. 5-68

5.6.2 Other Ship's Tracks (Target Track Setting)........................................ 5-69

6. TRUE AND FALSE ECHOES ON DISPLAY

6.1 RADAR WAVE WITH THE HORIZON .................................................... 6-2

6.2 STRENGTH OF REFLECTION FROM THE TARGET............................ 6-4

6.3 SEA CLUTTER AND RAIN AND SNOW CLUTTER................................ 6-6

- xxi -

6.4 FALSE ECHOES ...................................................................................6-10

6.5 DISPLAY OF RADAR TRANSPONDER (SART)................................... 6-13

7. SETTINGS FOR SYSTEM OPERATION

7.1 SETTINGS AT INSTALLATION ...............................................................7-1

7.1.1 How to open the Adjust Menu ............................................................. 7-2

7.1.2 Tuning Adjustment...............................................................................7-3

7.1.3 Bearing Adjustment .............................................................................7-6

7.1.4 Range Adjustment............................................................................... 7-7

7.1.5 Antenna Height Setting (Antenna Hight) .............................................7-8

7.1.6 Setting of CCRP/Antenna/GPS Antenna Position (CCRP Setting)...... 7-9

7.2 NAVIGATOR SETTING ......................................................................... 7-11

7.2.1 Ship Heading Equipment Setting (Heading Equipment).................... 7-14

7.2.2 NSK Unit Setting ...............................................................................7-15

7.2.3 True Bearing Value Setting (Set GYRO) ........................................... 7-17

7.2.4 MAG Compass Setting......................................................................7-18

7.2.5 Ship Speed Equipment Setting (Speed Equipment) ..........................7-19

7.2.6 Manual Speed Setting (Manual Speed)............................................. 7-20

7.2.7 Current Correction (SET/DRIFT) Setting........................................... 7-21

7.3 SETTINGS ............................................................................................ 7-23

7.3.1 Communication Port Setting (COM Port Setting) ..............................7-23

7.3.1.1 Baud Rate Setting .....................................................................7-24

7.3.1.2 Reception Port Setting (RX Port) ..............................................7-26

7.3.1.3 Reception Sentence Setting (RX Sentence) .............................7-27

7.3.1.4 Transmission Port Setting (TX Port).......................................... 7-29

7.3.2 Sector Blank Setting (Sector Blank) .................................................. 7-31

7.3.3 TNI Blank Setting (TNI Blank) ...........................................................7-33

7.3.4 Bearing Pulse Output Adjustment (Output Pulse) ............................. 7-35

7.3.5 Language Setting (Language) ...........................................................7-36

7.3.6 Date/Time Display Setting (Date/Time Setting) .................................7-37

7.4 ADJUSTMENT ......................................................................................7-38

7.4.1 Noise Level Adjustment (Noise Level)............................................... 7-39

7.4.2 Adjustment of Target Tracking Function (TT) .................................... 7-41

7.4.3 Main Bang Suppression Adjustment (MBS Level) .............................7-46

7.4.4 Adjustment of Performance Monitor (NJU-85) ..................................7-48

7.5 MAINTENANCE MENU......................................................................... 7-50

7.5.1 Scanner Safety Switch Setting (Safety Switch) ................................. 7-51

7.5.2 Initialization of Memory Area (Area Initial)....................................... 7-52

- xxii -

7.5.3 Save of Internal Memory Data (Card2) ............................................. 7-54

7.5.4 Update of Character String Data (String Data Update) ..................... 7-56

7.5.5 Clear of Antenna Operation Time (TXRX Time CLR) ........................ 7-57

7.5.6 Update of AIS Processor Program (AIS PROC Program Update) .... 7-61

8. MAINTENANCE AND INSPECTION

8.1 ROUTINE MAINTENANCE..................................................................... 8-1

8.2 MAINTENANCE ON EACH UNIT ........................................................... 8-2

8.2.1 Scanner Unit NKE-2103/2254............................................................. 8-2

8.2.2 Display Unit NCD-4380....................................................................... 8-5

8.3 PERFORMANCE CHECK ...................................................................... 8-6

8.3.1 TEST MENU ....................................................................................... 8-7

8.3.1.1 Self-diagnosis function................................................................ 8-8

8.3.1.2 Monitor Test .............................................................................. 8-10

8.3.1.3 Operation Panel Test .................................................................8-11

8.3.1.4 MON Display............................................................................. 8-13

8.3.1.5 Alarm Logging........................................................................... 8-14

8.3.1.6 System INFO ............................................................................ 8-17

8.3.1.7 MAGI ........................................................................................ 8-18

8.3.2 Line Monitor ...................................................................................... 8-19

8.3.3 GPS Reception Status Display (GPS Status).................................... 8-21

8.4 REPLACEMENT OF MAJOR PARTS................................................... 8-23

8.4.1 Parts Required for Periodic Replacement ......................................... 8-25

8.4.2 Replacement of magnetron............................................................... 8-25

8.4.3 Motor Replacement........................................................................... 8-31

8.4.4 Replacement of Diode Limiter (A303) (JMA-5212-4/6, 5222-7/9) ..... 8-37

8.4.5 Replacement of Backup Battery ..................................................... 8-38

9. TROUBLESHOOTING AND AFTER-SALES SERVICE

9.1 FAULT FINDING ..................................................................................... 9-1

9.1.1 List of Alarms and other Indications .................................................... 9-1

9.1.2 Operation Checking ............................................................................ 9-4

9.1.3 Fuse Checking .................................................................................... 9-4

9.2 TROUBLE SHOOTING........................................................................... 9-5

9.2.1 Spares................................................................................................. 9-6

9.2.2 Special Parts....................................................................................... 9-8

9.2.3 Circuit Block to be Repaired................................................................ 9-8

- xxiii -

9.3 AFTER-SALES SERVICE .....................................................................9-10

9.3.1 Keeping period of maintenance parts................................................ 9-10

9.3.2 When you Request for Repair ........................................................... 9-10

9.3.3 Recommended Maintenance ............................................................ 9-10

10. DISPOSAL

10.1 DISPOSAL OF THE UNIT..................................................................... 10-1

10.2 DISPOSAL OF USED BATTERIES....................................................... 10-2

10.3 DISPOSAL OF USED MAGNETRON ................................................... 10-3

10.4 ABOUT THE CHINA ROHS................................................................... 10-4

11. SPECIFICATIONS

11.1 JMA-5212-4/6 TYPE RADAR................................................................ 11-1

11.2 JMA-5222-7/9 TYPE RADAR................................................................ 11-2

11.3 SCANNER (NKE-2103-4/6)................................................................... 11-3

11.4 SCANNER (NKE-2254-7/9)................................................................... 11-4

11.5 DISPLAY UNIT (NCD-4380).................................................................. 11-5

11.6 PROCESSOR UNIT (NDC-1460).......................................................... 11-6

11.7 TARGET TRACKING UNIT (NCA-877A)............................................... 11-8

11.8 AIS UNIT (NQA-2155)........................................................................... 11-9

11.9 PLOTTER UNIT .................................................................................. 11-10

11.10 KEYBOARD UNIT (NCE-7699A)......................................................... 11-12

11.11 PERFORMANCE MONITOR (NJU-85) ............................................... 11-13

11.12 INPUT ENABLE SIGNAL .................................................................... 11-13

11.13 OUTPUT ENABLE SIGNAL ................................................................ 11-14

11.14 STANDARD CONFIGURATION .......................................................... 11-14

11.15 EQUIPMENT DISTANCE BETWEEN OTHER INSTRUMENTS ......... 11-15

11.16 OTHERS (OPTION) ............................................................................ 11-15

- xxiv -

APPENDIX

FIGURE 1 JMA-5212-4/6, JMA-5222-7/9 BLOCK DIAGRAM

FIGURE 2 JMA-5212-4/6 INTER-CONNECTION DIAGRAM

FIGURE 3 JMA-5222-7/9 INTER-CONNECTION DIAGRAM

FIGURE 4 PRIMARY POWER SUPPLY DIAGRAM, TYPE JMA-5212-4/6,

JMA-5222-7/9

FIGURE 5 PROCESSOR UNIT, NDC-1460 INTER-CONNECTION DIAGRAM

FIGURE 6 KEY-BOARD UNIT, NCE-7699A INTER-CONNECTION DIAGRAM

FIGURE 7 NKE-2103 SCANNER UNIT INTERCONNECTION DIAGRAM

FIGURE 8 NKE-2254 INTERCONNECTION DIAGRAM OF SCANNER UNIT

FIGURE 9 JMA-5200MK2 ON-SCREEN CONTROLS

- xxv -

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.

Associated target

A target simultaneously representing a tracked target and a reported AIS
target having similar parameters (position, course, speed) which comply
with an association algorithm.

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

- xxvi -

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.

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

HSC

Vessels which comply with the definition in SOLAS for high speed
craft

H up

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

I

IMO

International Maritime Organization

Interswitch Unit

A device to switch over two or more radar display units and two or
more scanners.

IR

radar Interference Rejecter

- xxvii -

ISW

InterSWitch

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

MON

Performance monitor

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

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

- xxviii -

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

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.

- xxix -

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)

Trial maneuver

A graphical simulation facility used to assist the operator to perform a
proposed maneuver for navigation and collision avoidance purposes.

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

U

UTC

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

- xxx -

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 a event.

- xxxi -

3

4

5

2

1

6

7

8

9

10

11

APPENDIX

㧝

GENERAL AND EQUIPMENT COMPOSITION

㧞

SCREEN DISPLAY AND OPERATION PANEL

㧟

BASIC OPERATION

㧠

MEASUREMENT OF RANGE AND BEARING

㧡

OPERATION OF TT AND AIS

㧢

TRUE AND FALSE ECHOES ON DISPLAY

㧣

SETTINGS FOR SYSTEM OPERATION

㧤

MAINTENANCE AND INSPECTION

㧥

TROUBLESHOOTING AND AFTER-SALES SERVICE



DISPOSAL



SPECIFICATION

#22'0&+:

- xxxii -

SECTION 1

GENERAL AND EQUIPMENT

COMPOSITION

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

1.1.1 FUNCTION OF THIS SYSTEM.............. 1-1

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

1.3 CONFIGURATION ........................................ 1-4

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

1.5 GENERAL SYSTEM DIAGRAMS .............. 1-14

11

1.1 FUNCTIONS

This equipment is a high-performance radar equipment consisting of a scanner unit, a transmitter-receiver unit
and a high resolution color LCD display unit.

1.1.1 Function of This System

The JMA-5200M2 series is a color radar system designed to comply with the international standards of
the IMO.
The main functions include:

x sensitivity adjustment
x sea clutter and rain/snow clutter suppression
x interference rejecter
x bearing and range measurement using a cursor, fixed/variable range markers, and electronic bearing

line

x own track display
x NAV line and marker displays
x TM (True Motion) presentation
x self-diagnostic facilities
x radar performance monitoring (Performance Monitor)
x TT functions (manual/automatic, target acquisition and tracking, vector and trail displays and alarm

displays) (option)

x simple plotter functions (marker and line display, destination/route setting) (option)

1.2 FEATURES

12

1

y

1.2 FEATURES

Realization of Easy-to-see Screen with High Resolution

The 15-inch color LCD with high resolution of 1024 u 768 pixels can display radar images of 180 mm or more
in diameter. Even short-range targets can also be displayed as high-resolution images.

Target Detection by Latest Signal Processing Technology

The system employs the latest digital signal processing technology to eliminate undesired clutter from the radar
video signals that are obtained from the receiver with a wide dynamic range, thus improving the target
detection.

Advanced Technology Based TT Functions (Option)

The TT target acquisition and tracking performance is enhanced by the use of the fastest DSP and tracking
algorithm. So stable operation in target tracking under clutter is ensured.

x Acquisition and tracking of 30 targets.
x Hazardous conditions are represented by shapes and colors of symbols as well as sounds.
x Tracks of up to 20 target ships can be stored with a maximum of 1,500 points for each of them, and

displayed distinguished by using seven different colors.

Overlay of Radar Images, Coastlines, and Own Ship's Track

As well as operator-created NAV lines, the data of coastlines, objects such as buoys, and own ship's tracks/TT
tracks/AIS tracks, which is stored on the memory card can be superimpose-displayed with radar images and
radar trails in all display modes including the head-up mode.
Use of the optional plotter function enables the creation/display of marks and lines and the settings of
waypoints/courses.

Easy Operation with GUI

All the radar functions can be easily controlled by simply using the trackball and two switches to operate the
buttons shown on the radar display.

13

Improved Day/Night Mode

Two types of background colors are available in each Day/Dusk/Night mode (total 4 background colors).
Each background color can be reproduced to be suited for the user’s operating environment by simple key
operation. The radar echoes and a variety of graphics can also be represented in different colors, ensuring
easy-to-see displays.

Self-diagnostic Program Incorporated

The Self-diagnostic program always monitors all the functions of the system. If any function deteriorates, an
alarm message will appear on the radar display and an alarm sounds at the same time. Even when the system
is operating, the functionality test can be carried out. (except on some functions)

Performance Monitor (Option)

The radar performance (transmitted output power and receiving sensitivity) can appear on the radar display.
* The PM unit (NJU-85) is needed separately.

Simplified Inter-switch Operation (Option)

If an simplified inter-switch unit (option) is installed, up to two JMA-5200M2 radars can be switched over by
performing simple operation.
* An simplified inter-switch connection cable (optional) CFQ-5251 (5m) is required separately.

Various Functions

x RADAR TRAILS (Other ship’s track display)
x TM (True Motion) display
x Head-up/North-up/Course-up display
x Own ship’s track display
x Automatic acquisition and activation area setting function

1.3 CONFIGURATION

14

1

y

1.3 CONFIGURATION

Scanners and Transmitted Output Powers

SCANNER TYPE

TRANSMITTED

OUTPUT POWER

BAND

RATE OF

ROTATION

CATEGORY

JMA-5212-4

4 FT SLOT

ANTENNA

10 KW X 27rpm CAT 3

JMA-5212-6

6 FT SLOT

ANTENNA

10 KW X 27rpm CAT 3

JMA-5222-7

7 FT SLOT

ANTENNA

25 KW X 24rpm CAT 3

JMA-5222-9

9 FT SLOT

ANTENNA

25 KW X 24rpm CAT 3

Radar Configuration and Ship’s Mains

RADAR
MODEL

SCANNER

UNIT

PERFORMANCE
MONITOR UNIT

DISPLAY UNIT SHIP’S MAINS

JMA-5212-4 NKE-2103-4 NJU-85 NCD-4380 24 VDC

JMA-5212-6 NKE-2103-6 NJU-85 NCD-4380 24 VDC

JMA-5222-7 NKE-2254-7 NJU-85 NCD-4380 24 VDC

JMA-5222-9 NKE-2254-9 NJU-85 NCD-4380 24 VDC

Notes:

1. An optional rectifier NBA-5111 is necessary for using Ship's Mains 100/110/115/200/220/230 VAC.

2. The display system NCD-4380 has a separate structure consisting of the following:
Monitor unit NWZ-164
Processor unit NDC-1460
Keyboard unit NCE-7699A

3. The ship with radar of IMO conformity must mount a PM unit.

15

1.4 EXTERIOR DRAWINGS

Fig. 1.1 Exterior Drawing of Scanner Unit, Type NKE-2103-4

Fig. 1.2 Exterior Drawing of Scanner Unit, Type NKE-2103-6

Fig. 1.3 Exterior Drawing of Scanner Unit, Type NKE-2254-7

Fig. 1.4 Exterior Drawing of Scanner Unit, Type NKE-2254-9

Fig. 1.5 Exterior Drawing of Monitor Unit, Type NWZ-164

Fig. 1.6 Exterior Drawing of Processor Unit, Type NDC-1460

Fig. 1.7 Exterior Drawing of Keyboard Unit, Type NCE-7699A

Fig. 1.8 Exterior Drawing of NSK Unit, Type NCT-4106A

1.4 EXTERIOR DRAWINGS

16

1

y

Fig. 1.1 Exterior Drawing of Scanner Unit, Type NKE-2103-4

17

Fig. 1.2 Exterior Drawing of Scanner Unit, Type NKE-2103-6

1.4 EXTERIOR DRAWINGS

18

1

y

Fig. 1.3 Exterior Drawing of Scanner Unit, Type NKE-2254-7

19

Fig. 1.4 Exterior Drawing of Scanner Unit, Type NKE-2254-9

1.4 EXTERIOR DRAWINGS

110

1

y

Fig. 1.5 Exterior Drawing of Monitor Unit, Type NWZ-164

111

Fig. 1.6 Exterior Drawing of Processor Unit, Type NDC-1460

1.4 EXTERIOR DRAWINGS

112

1

y

Fig. 1.7 Exterior Drawing of Keyboard Unit, Type NCE-7699A

113

Fig. 1.8 Exterior Drawing of NSK Unit, Type NCT-4106A

1.5 GENERAL SYSTEM DIAGRAMS

114

1

y

1.5 GENERAL SYSTEM DIAGRAMS

Fig. 1.9 General System Diagram of Radar, Type JMA-5212-4/6

Fig. 1.10 General System Diagram of Radar, Type JMA-5222-7/9

115

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㪘㪚㪈㪇㪇㪆㪈㪈㪇㪆㪈㪈㪌㪭㩷㪌㪇㪆㪍㪇㪟㫑
㪘㪚㪉㪇㪇㪆㪉㪉㪇㪆㪉㪊㪇㪭㩷㪌㪇㪆㪍㪇㪟㫑

㪥㪤㪜㪘㩷㫀㫅㫇㫌㫋
㪛㪣㫆㪾㩷㪼㫋㪺㪅

Fig. 1.9 General System Diagram of Radar, Type JMA-5212-4/6

Note:

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.

1.5 GENERAL SYSTEM DIAGRAMS

116

1

y

㪛㪚㪉㪋㪭

㪚㫆㫄㫇㪸㫊㫊

㩿㪥㪤㪜㪘 㫀㫅㫇㫌㫋㪀

㪡㪊

㪪㪚㪘㪥㪥㪜㪩

㪧㪦㪮㪜㪩

㪢㪜㪰㪄㪙㪦㪘㪩㪛

㪭㪠㪛㪜㪦

㪚㪝㪨㪄㪌㪊㪌㪇

㩿㪦㫇㫋㫀㫆㫅㪀

㪩㪞㪙㪆㪭㪛㪩

㪘㪠㪪

㪥㪤㪜㪘 㫀㫅㫇㫌㫋

㪘㪠㪪㪆㪛㫃㫆㪾 㪼㫋㪺㪅

㪥㪤㪜㪘

㩿㪩㪪㪄㪉㪊㪉㪚㪀

㪧㪚 㪧㫃㫆㫋㫋㪼㫉

㪡㪎

㪡㪋

㪡㪍

㪡㪏

㪡㪈

㪡㪉

㪘㪬㪯

㪡㪌

㪡㪐

㪞㪧㪪

㪞㪧㪪

㪚㪦㪤㪧㪘㪪㪪

㪞㫐㫉㫆㪄㪚㫆㫄㫇㪸㫊㫊 㩿 㫊㫐㫅㪺㪆㫊㫋㪼㫇㪀

㪣㫆㪾 㩿㫇㫌㫃㫊㪼㪀

㪡㪈㪇

㪛㪚㪉㪋㪭

㪪㪿㫀㫇㩾㫊 㪤㪸㫀㫅

㪡㪈㪈

㪡㪣㪩㪄㪈㪇䋺㪚㪝㪨㪄㪍㪐㪊㪋㩷㩿㪦㫇㫋㫀㫆㫅㪀
㪡㪣㪩㪄㪉㪇㪆㪊㪇䋺㪚㪝㪨㪄㪌㪋㪍㪐㩷㩿㪦㫇㫋㫀㫆㫅㪀

㪘㪚㪈㪇㪇㪆㪈㪈㪇㪆㪈㪈㪌㪭㩷㪌㪇㪆㪍㪇㪟㫑
㪘㪚㪉㪇㪇㪆㪉㪉㪇㪆㪉㪊㪇㪭㩷㪌㪇㪆㪍㪇㪟㫑

㪥㪤㪜㪘㩷㫀㫅㫇㫌㫋
㪛㪣㫆㪾㩷㪼㫋㪺㪅

Fig. 1.10 General System Diagram of Radar, Type JMA-5222-7/9

Note:

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.

117

SECTION 2

SCREEN DISPLAY

AND OPERATION PANEL

2.1 Example of Display................................................................................................... 2-1

2.2 Names and Functions of Control Panel KEYs....................................................... 2-2

2.3 Functions of Software Buttons ............................................................................... 2-7

2.3.1 Software Buttons for Area 1 (Top-Left Corner of the Radar Display) ........... 2-8

2.3.2 Software Buttons for Area 2 (Bottom-Left Corner of the Radar Display)... 2-10

2.3.3 Software Buttons for Area 3 (Top-Right Corner of the Radar Display)....... 2-12

2.3.4 Software Buttons for Area 4

(Bottom-Right Corner of the Radar Display)................................................ 2-14

2.3.5 Software Buttons for Area 5

(Own Ship Information Area) (Right Side of the Radar Display)................ 2-15

2.3.6 Software Buttons for Area 6

(Other Ship Information Area) (Right Side of the Radar Display).............. 2-16

2.3.7 Software Buttons for Area 7

(Panel Display Area) (Right Side of the Radar Display).............................. 2-18

2.3.8 Software Buttons for Area 7

(Panel Display Area) (Right Side of the Radar Display).............................. 2-19

2.3.9 Software Buttons for Area 8 (Operation and Message Area)

(Right Side of the Radar Display).................................................................. 2-20

21

2.1 EXAMPLE OF DISPLAY

2.2 NAMES AND FUNCTIONS OF CONTROL PANEL KEYS

22

2

y y

2.2 NAMES AND FUNCTIONS OF CONTROL

PANEL KEYS




The following page describe name of buttons.

23

Ԙ Trackball

Use this trackball to move the cursor mark to an arbitrary point. The trackball can be used for setting
in each mode.
For example, use it to specify the center of a floating EBL or the off-center position.

oFor setting cursor, see section 3.9.3.

ԙ [EBL] (Electric Bearing Line) Control

Rotates the bearing of an EBL.
The selected EBL status switches back and forth between “center fixed” and “floating” each time
the control is pressed.

oSee section 3.5.2.

Ԛ [VRM] (Variable Range Marker) Control

Changes the range of a VRM.

oSee section 3.5.4.

ԛ [MULTI] (Multi-function) Control

Each time you press this control, you can change items registered in the multi-function control
function.
An item to switch to is shown put in parentheses in the lower left area of the screen. Give a long
press of the control to open the setup screen for registering items. Give a long press of the control
button again to close this setup screen.

oSee section 3.5.18.

Ԝ [AUTO-RAIN] (Rain/Snow Clutter Suppression) Control

Suppresses the clutter echo from rain or snow.
To heighten a suppressing effect, turn the control clockwise.
The clutter suppression mode switches back and forth between MANUAL and AUTO each
time the control is pressed.

oSee section 3.4.7.

ԝ [AUTO-SEA] (Sea Clutter Suppression) Control

Suppresses the clutter echo from the sea surface.
To heighten a suppressing effect, turn the control clockwise.
The clutter suppression mode switches back and forth between MANUAL and AUTO each
time the control is pressed.

oSee section 3.4.6.

Ԟ [GAIN/PL] (Receiving Sensitivity/Pulse Width) Control

Controls the radar’s receiving sensitivity.
To get higher sensitivity, turn the control clockwise.
To change the transmitter pulse width, press the control.

oFor sensitivity, see section 3.4.5.
oFor pulse width, see section 3.5.11.

ԟ [STBY] (Standby) Key

Use this key to change the power-off state to the power-on state, or the transmission state to the
standby state.

To turn off the power, press the

[STBY] key and [TX/PRF] key together.

oSee section 3.4.2.

2.2 NAMES AND FUNCTIONS OF CONTROL PANEL KEYS

24

2

y y

Ԡ [TX/PRF] (Transmit/Transmitting Repetition Frequency) Key

PREHEAT at the upper left of the radar display changes to STANDBY about three minutes
after the power is turned on.
Then, press this key to start transmission.
To fine-tune the transmitting repetition frequency, press the key during transmission.
Use of this function with the interference rejection function heightens an interference suppressing
effect.

oSee section 3.4.1.

ԡ [EBL1] (Electric Bearing Line 1) Key

Use this key to display and select EBL1.
Holding down the key for two seconds or more displays the menu for EBL1 setting.

oSee section 3.5.2.
oFor EBL1 setting, see section 3.5.3.

Ԣ [EBL2] (Electric Bearing Line 2) Key

Use this key to display and select EBL2.
Holding down the key for two seconds or more displays the menu for EBL2 setting.

oSee section 3.5.2.
oFor EBL2 setting, see section 3.5.3.

ԣ [ALARM ACK] (Alarm Acknowledgment) Key

Use this key to acknowledge a failure, target’s approach, or collision alarm.
Press the key to stop an audible alarm.
If more than one alarm has occurred, the key needs to be pressed the number of times equivalent to
the number of alarms.

oSee section 3.3.7.

Ԥ [PANEL] (Operation Panel Brilliance) Key

Controls the brilliance for the controls and Keys on the operation panel.
The brilliance changes cyclically each time the key is pressed.

oSee section 3.3.3.

ԥ [MOB] (Marker) Key

A marker is set to the latitude and longitude of the own ship’s position at the point of pressing this
key.
For example, use the key to store the own ship’s position at the moment when somebody falls from
the ship.
Holding down the key for two seconds or more erases the marker.

oSee section 3.5.15.

Ԧ [ACQ] (Manual Acquisition) Key

Enables the manual TT acquisition mode for the target on which the cursor sits.

oSee section 5.2.1.

ԧ [TGT CNCL] (Tracking Target Cancel) Key

Cancels the symbol and vector of a target under tracking, and stops tracking the target.
Holding down the key for two seconds or more erases all the acquisitions of TT.

oSee section 5.2.2.

Ԩ [TGT DATA] (Target Data Setup) Key

Use this key to view the numeric data of the TT under tracking or the currently displayed AIS.

oSee section 5.2.3.

25

ԩ [FUNC] (Function Call) Key

Calls predefined signal processing setting when pressed.
The selection changes in the following sequence each time the key is pressed:

Function Off o Function 1 o Function 2 o Function 3 o Function 4 o
Function Off

Holding down the key for two seconds or more displays the function setting menu.

oSee section 3.10.

Ԫ [USER KEY1] (User Registration 1) Key

Directly displays a pre-registered menu position when pressed.

oSee section 3.5.19.

ԫ [USER KEY2] (User Registration 2) Key

Directly displays a pre-registered menu position when pressed.

oSee section 3.5.19.

[AZI MODE] [1] (Bearing Mode Select/1) Key

Selects the North-up (true bearing), Head-up (relative bearing), or Course-up bearing display mode.
This key serves as the numeric key

[1] during menu operation.

oSee section 3.5.7.

[MAP] [2] (Map Display/2) Key

Selects whether to display charts, shorelines or depth contours on the radar map.
This key serves as the numeric key

[2] during menu operation.

oFor displaying charts, see section 3.7.

[VECT R/T] [3] (Vector Mode/3) Control

Selects the TT vector display mode (true/relative).
This key serves as the numeric key

[3] during menu operation.

oSee section 5.1.7.

[TM/RM] [4] (True Motion/Relative Motion) Key

Switches back and forth between the TM display mode and RM display mode.
This key serves as the numeric key

[4] during menu operation.

oSee section 3.5.8.

[OFF CENT] [5] (Off Center/5) Key

Shifts the own ship’s position within a desired direction (within 66% of the scope’s radius) from the
scope’s center to expand the display portion.

This key serves as the numeric key

[5] during menu operation.

oSee section 3.5.9.

[MARK] [6] (Mark/6) Key

Displays a mark at an arbitrary position or erases the mark on the display.
This key serves as the numeric key

[6] during menu operation.

oSee section 3.5.16.

[DAY/NIGHT] [7] (Day/Night Mode Select/7) Key

Selects a preset color and brilliance of the display screen.
This key serves as the numeric key

[7] during menu operation.

oSee section 3.3.4.

㪉㪈

㪉㪉

㪉㪊

㪉㪋

㪉㪌

㪉㪎

㪉㪍

2.2 NAMES AND FUNCTIONS OF CONTROL PANEL KEYS

26

2

y y

[RR/HL] [8] (Fixed Range Marker/Heading Line Off/8) Key

The ship’s HL (heading line) is erased while this key is held down.
The fixed range marker display switches back and forth between display and non-display
each time the key is pressed.

This key serves as the numeric key

[8] during menu operation.

oFor displaying Fixed Range Marker, see section 3.4.9
oFor Heading Line Off, see section 3.4.10.

[AZ/9] (Guard Zone/9) Key

Sets a guard zone on the radar display.
This key serves as the numeric key

[9] during menu operation.

oSee section 3.5.20 and section 3.5.21.

[TRAILS] [0] (Radar Trails/0) Key

The radar trails time length is switched each time the key is pressed.
This key serves as the numeric key

[0] during menu operation.

oSee section 3.5.10.

[RADAR MENU] (Radar Menu) Key

Displays the radar menu when pressed.

[TT MENU] (TT Menu) Key

Displays the TT menu when pressed.

[RANGE+] (Range Scale +) Key

Expands the observation range scale when pressed.

oSee section 3.4.3.

[RANGE-] (Range Scale -) Key

Shrinks the observation range scale when pressed.

oSee section 3.4.3.

[VRM1] (Variable Range Marker 1) Key

Use this key to display and select VRM1.
Holding down the key for two seconds or more displays the menu for VRM1 setting.

oSee section 3.5.4.

[VRM2] (Variable Range Marker 2) Key

Use this key to display and select VRM2.
Holding down the key for two seconds or more displays the menu for VRM2 setting.

oSee section 3.5.4.

[ENT] (Enter) Key

Use this key to determine menu selection or value input.
Pressing the key has the same effect as left-clicking the trackball.

[CLR/INFO] (Clear/Information) Key

Use this key to cancel menu selection or value input.
Pressing the key has the same effect as right-clicking the trackball

㪉㪏

㪉㪐

㪊㪇

㪊㪈

㪊㪉

㪊㪊

㪊㪋

㪊㪌

㪊㪍

㪊㪎

㪊㪏

27

2.3 FUNCTIONS OF SOFTWARE BUTTONS

This radar provides the software buttons on the display which can be used to set several important functions

directly and swiftly from the display without opening the corresponding menu.

The names of buttons are described on the following pages.

By positioning the arrow cursor to a button in the figure above and then clicking the left button of the trackball,

the setting can be changed as shown below.

Note : Latitude and longitude in Area 5 is the value of CCRP.

Area 1
(Top-left corner of
the radar dis

play)

Area 3
(Top-right corner of
the radar displa

y)

Area 2
(Bottom-left corner of
the radar dis

play)

Area 4
(Bottom-right corner of
the radar displa

y)

Area 5
(Own ship’s information)

Area 6
(Other ship’s information)

Area 7
(Panel display)

Area 8
(Operation/message)

2.2 FUNCTIONS OF SOFTWARE BUTTONS

28

2

y y

2.3.1 Software Buttons for Area 1 (Top-Left Corner of the Radar
Display)

6

+

-

Rings 1NM

RM(R) H UP

Off Center

Transmit

GND

HDG

Compass

000

01

0

320

330

340

350

000.0

X-BAND

Master

MP

Ԙ㧦

Range scale switching

To increase the observation range scale
(maximum 96NM), click + and to reduce the
range (minimum 0.125NM), click - .

ԙ㧦

Range rings display On / Off

The display of range rings are set to On / Off
whenever this button is clicked.
When the display is set to On, the interval of the
fixed range marker is displayed.

Ԛ㧦

Motion mode true / relative
switching

The screen motion mode is switched whenever
the button is clicked.
TM (true motion)  RM (relative motion)

 TM
RM(R) indicates that the radar trails is a
relative trail.
RM(T) indicates that the radar trails is a true
trail.



ԛ㧦

Off center switching

If this button is clicked, the cursor is moved, and
the [ENT] key is pressed, the ship's position can
be moved to the cursor position. The moving
range is within 66% of the radius.
If the button is clicked for 2 seconds, the
off-center is set to Off and the ship's position is
returned to the center of the screen.

Ԝ㧦

Transmission / standby switching

At expiration of the pre-heat time after the power
is turned on, Preheat changes to Standby .

Standby : Indicates a standby state. If this

button is clicked in this state, the
equipment is set to a transmission
state.

Transmit : Indicates a transmission state. If

this button is clicked in this state,
the equipment is set to a standby
state.



ԝ㧦

Interswitch connection change

This button is displayed when the interswitch is
connected. This button indicates the connection
status of the scanner unit that is connected to the
indicator.
If the button is clicked in the transmission standby
state, the menu for changing the connection state
between the scanner unit and the indicator is
displayed. The connection state of the scanner
unit and indicator cannot be changed unless the
master indicator is in a standby state.
o Refer to the Interswitch (Optional)

Instruction Manual that is attached for the
setting method. This button is not displayed
if the interswitch is not connected.

Ԟ㧦

Transmission pulse length
switching

The transmission pulse length is switched
whenever this button is clicked. Three types of
pulses are available, short pulse (SP), middle
pulse (MP), and long pulse (LP). The pulse length
and repetition frequency vary even for the same
short pulse, according to the range that is used and
it is displayed as SP1 , SP2 .

Ԙ



ԙ
Ԛ

ԛ
Ԝ

ԝ

Ԟ
ԟ

Ԡ

ԡ

29

ԟ㧦

Azimuth display mode switching

The azimuth display is switched whenever this
button is clicked.
H Up (Head Up)  N Up (North Up) 

C Up (Course Up)  H Up
If the button is clicked for 2 seconds, the GYTO
Setting menu is displayed.

Ԡ㧦

Tuning state gauge

The tuning state is indicated.
Increased gauge means better tuning, and high
quality images will be displayed.

ԡ㧦

Stabilization mode display

Sea : Stabilization with respect to the water
GND : Stabilization with respect to the ground

About ground and sea stabilization

•

Speed sensor source is MAN , 1AXW , 2AXW .

If Set/Drift Setting menu is on :

GND (Ground stabilization)

If Set/Drift Setting menu is off :

Sea (Sea stabilization)

•

Speed sensor source is 2AXG , GPS :

GND (Ground stabilization)

2.3 FUNCTIONS OF SOFTWARE BUTTONS

210

2

y y

2.3.2

Software Buttons for Area 2 (Bottom-Left Corner of the Radar Display)

x

2
IR Low
ENH Level1
PROC Off
FUNC Off
Gain
Sea
Rain
TUNE

MAN

Multi TGT Num

()

1

190

200

210

220

230

MAN
Auto

Ԙ㧦

Double zoom switching

Use this function to enlarge to double the size the
display screen of the position specified by the
cursor. If this button is clicked, the zoom mode
is set. When the cursor is moved to the radar
screen and the [ENT] key is pressed, the screen is
enlarged to double the size so that the middle of
the cursor and the own ship's position is set to the
center of the screen. This function cannot be used
when the range is 0.125NM.

ԙ㧦

Interference rejection (IR) mode
switching

The interference rejection mode is switched
whenever this button is clicked.
IR Off  IR Low  IR Medium 

IR High  IR Off

Ԛ㧦

Target enhance (ENH) mode
switching

The target enhance mode is switched whenever
this button is clicked.
ENH Off  ENH Level1 

ENH Level2  ENH Level3 
ENH Off

ԛ㧦

Radar video processing (PROC)
mode switching

The radar video processing mode is switched
whenever this button is clicked.
PROC Off  3Scan COREL 

4Scan COREL  5Scan COREL 
Remain  Peak Hold  PROC Off

Ԝ㧦

Function (FUNC) mode switching

The function mode is switched whenever this
button is clicked.

FUNC Off  Coast 
Deep Sea  Fishnet  Storm 
FUNC Off

If the button is clicked for 2 seconds, the function
registration menu (User Function Setting) is
opened.

ԝԞԟ

and

Ԡ㧦

Gain, Sea clutter
suppression (Sea), Rain / snow
clutter suppression (Rain), Tune
adjustment

Adjust the gain, sea clutter suppression, rain and
snow clutter suppression and tune using the track
ball.
If the button is clicked on, the adjustment value is
shown at the upper-right of the cursor. Make
adjustments by moving the track ball to the left
and right. Determine the adjustment by pressing
the [ENT] key.

ԡԢ

and

ԣ㧦

Sea clutter suppression
(Sea) mode, Rain / snow clutter
suppression (Rain) mode, and
Tune mode switching

Use these functions to switch to the manual or
automatic mode of sea clutter suppression, rain /
snow clutter suppression and tune. The bar on the
left side indicates the position of the dial.
The mode is switched to MAN (manual) /

AUTO (automatic) whenever the button is
clicked. If rain / snow clutter suppression is
switched to an automatic mode, sea clutter
suppression is switched to an automatic mode also.

Ԙ
ԙ
Ԛ
ԛ
Ԝ
ԝ

Ԟ
ԟ
Ԡ

ԡ
Ԣ
ԣ

Ԥ

ԥ

211

Ԥ㧦

Multi-dial mode switching

The function that is registered in the multi-dial is
switched whenever the button is clicked.
Vector  Trails  TGT No. 

Course  Track  Mark 
 Tune  Vector
The switched function is displayed in ( ).

If the button is clicked for 2 seconds, the Multi
Dial Setting menu is opened. If this button is
clicked again for 2 seconds, this setting menu is
closed.

ԥ㧦

Multi-dial mode

The currently selected multi-dial mode described
in Ԥ is displayed.

2.3 FUNCTIONS OF SOFTWARE BUTTONS

212

2

y y

2.3.3

Software Buttons for Area 3 (Top-Right Corner of the Radar Display)

Cursor

(

Off

)

C

True

089.6

5.37 NM

35 33.037'

EBL1 T

VRM1

EBL2 T

VRM2

NM

NM

PC

CCRP1

N

140 01.597'E

10

020

030

040

050

045.0

3.00

135.0

6.00
C

Ԙ㧦

Cursor mode switching

The mode of the function that uses the cursor is
switched whenever this button is pressed.
AUTO  ACQ TT  ACT AIS 

TGT DATA  CNCL TT 
DEACT AIS  CNCL Data 
 (Mark)  -------- (Line) 
Property  AUTO

ԙ㧦

Cursor mode: mark font / line
pattern switching

The currently selected cursor mode is indicated.
When the cursor is in the mark or line mode, use
this button to change the mark font pattern or line
pattern. If this button is clicked while the cursor
mode is  (mark) or -------- (line), the
mark font / line pattern is changed.

Ԛ㧦

Mark color / line color switching

This function switches a mark color / line color. If
this button is clicked while the cursor mode is
 (mark) or -------- (line), the mark color /
line color is changed.

ԛ㧦

Cursor bearing numeric value
display true / relative switching

The bearing numeric value display T (true
bearing) / R (relative bearing) of the cursor is
switched whenever this button is clicked.

ԜԝԞ

and

ԟ㧦

EBL1 / 2 and VRM1 /

2 adjustment

These functions set the EBL1 , VRM1 ,

EBL2 , and VRM2 displays to On / Off and
acquire the operation right.
If the button is clicked on, the operation right is
acquired. Make adjustments by moving the track
ball to the left and right Determine the
adjustment by pressing the [ENT] key.

Ԡ

and

ԡ㧦

EBL1, EBL2 numeric value

true / relative switching

The EBL1 / 2 bearing numeric value display T
(true bearing) / R (relative bearing) is
switched whenever the button is clicked.
If the button is clicked for 2 seconds, the EBL /
Cursor Setting menu is displayed.

ԛ

Ԙ ԙ Ԛ

Ԝ
ԝ

ԟ

Ԟ

Ԡ
ԡ

Ԣ

ԣ

ԥ

Ԥ

Ԧ
ԧ

Ԩ

213

Ԣ

and

ԣ㧦

EBL1 / EBL2 starting point

mode switching

The EBL starting point is set to CCRP or any
position on the radar screen whenever this button
is clicked.
 C  D 
: Center :The starting point is fixed to

the CCRP position.

C : Screen Fix :The starting point is set to the

cursor position. If the [ENT]
key is pressed subsequently,
the starting position is fixed to
the cursor position.

D : L/L Fix :The starting point is set to the

cursor position. If [ENT] key
is pressed subsequently, the
starting position is fixed to the
latitude / longitude of the
cursor. (Connection of a
navigator is necessary.)

If the starting point is moved

outside of the screen, the
operation is reset automatically
and the starting point returns to
the CCRP position.

* D is enabled only when a navigator is

connected.

Ԥ㧦

Parallel index line setting

This function sets the parallel index line display to
On / Off and acquires the operation right.
If this button is clicked, the operation right is
acquired and the menu is opened. After setting,
determine the setting by pressing the [ENT] key.

ԥ㧦

Parallel index line starting point
mode switching

The parallel index line starting point is set to
CCRP or any position on the radar screen
whenever this button is clicked.
In the same way as for the EBL starting point,
three options are available, : Center, C :
Screen Fix, and D : L/L Fix.

Ԧ

and

ԧ㧦

Distance unit switching for

VRM1 and VRM2

Press the button to change the unit of distance in
the order of:
NM ψ km ψ sm ψ NM

Ԩ

Consistent Common Reference

Point (CCRP)

2.3 FUNCTIONS OF SOFTWARE BUTTONS

214

2

y y

2.3.4 Software Buttons for Area 4 (Bottom-Right Corner of the Radar
Display)

MRK

TRK 30

sec

Map Shift

CPA

Ring

HL

Off

Data

Off

140

1 32

MOB

Ԙ㧦

Mark color switching

The color of the mark is switched whenever this
button is clicked.
If the button is clicked for 2 seconds, the Mark
Setting menu is opened.

ԙ㧦

Own ship's track interval switching

The own ship's track interval is switched
whenever this button is clicked.

Ԛ㧦

Own ship's track interval unit
switching

The unit of the own ship's track interval is
switched whenever this button is clicked.
sec  min  NM  sec

ԛ㧦

Map display On / Off

The map display is set to On / Off whenever this
button is clicked.
Map information must be inserted in the card slot
of the radar process unit in advance.
If the button is clicked for 2 seconds, the Map
Setting menu is opened.

Ԝ㧦

Graphic display Off

While the button is clicked, the graphic display
other than VRM, EBL, HL, a cursor, and range
rings on the radar screen is cleared temporarily.

ԝ㧦

Ship's heading line Off

The ship's heading line (HL) display is set to Off
while this button is clicked.
Since the ship's heading line is cleared while the
button is clicked, the target in the ship's heading
bearing can be clearly seen.

Ԟ㧦

CPA ring display On / Off

The CPA ring display is switched to On / Off
whenever the button is clicked.
When the target vector display mode is T
(true vector), the CPA ring cannot be set to On.

ԟ㧦

Event mark input

When the event mark button is pressed, an event
mark is displayed on the current location of the
own ship.
To delete the event mark, set the cursor to the
mark mode, move the cursor to the event mark,
and press the Delete / Information key.

Ԡ㧦

Marker

Press the Marker button to place a marker at the
current lat/long coordinates of the own ship.
The marker function is used to quickly memorize
the location of the own ship when for example
someone falls from the ship. The marker will be
deleted when the button is held down for 2
seconds.

ԡ㧦

Screenshot function

When this button is pressed, an image of the
current screen can be saved as a bitmap data in the
memory card.

Note:

The system becomes slower while the

screenshot function is in use.

Ԣ㧦

Map location correction On / Off

Map location correction is activated or
deactivated every time this button is pressed.

ԣ㧦

Memory intervals for own ship’s
track display

Selects track data memory intervals for own ship.
The setting changes each time the button is
pressed.

Ԙ
ԙ
ԛ

Ԝ ԝ Ԟ

Ԛ

ԟ

Ԡ

ԡ

Ԣ
ԣ

215

2.3.5 Software Buttons for Area 5 (Own Ship Information Area) (Right
Side of the Radar Display)

Ԙ㧦

Speed sensor switching

The speed sensor is switched whenever the button
is clicked.
MAN (Manual)  LOG (Single-axis log) 

2AXW (Double-axes to water) 
2AXG (Double-axes to ground) 
GPS  MAN

If you selected the 2AXW, the value of
forward-backward direction is indicated.
If ships in shallow water, when the accuracy of
the dual-axis log may be decreased.
If ships in deep sea area, when the accuracy of the
dual-axis log error may be occurred.
The accuracy of GPS's COG is ±3° when own
ships speed no fewer than 1kn, no more than 17kn.
The accuracy of GPS's COG is ±1° when own
ships speed over 17kn.

ԙ㧦

Time display mode switching

The time display mode UTC or UTC(S)
(universal time clock) / LMT or LMT(S)
(local mean time) is switched whenever this

button is clicked. UTC(S) and LMT(S) are
calculated with the time of radar system.

Ԛ㧦

Manual own ship's speed setting

When selection of the speed sensor is set to
MAN , enter the own ship's speed manually.
If this button is clicked, the numeric value input
screen is opened. After setting a value, determine
the entry by clicking ENT .

ԛ㧦

Positioning system (example: GPS,
DGPS)

Displays the type of the position fixing equipment
that contains the own ship's information.
LRNA : LORAN A
LRNC : LORAN C
GPS : GPS
DGPS : DGPS (SBAS also included)
JG : JRC format (G)
JC : JRC format (C)
JN : JRC format (N)
JZ : JRC format (Z)
MAN : MANUAL

Ԝ㧦

When a picture freeze occurs, the
turn of this symbol stops.

ԝ㧦

Geodetic System

The geodetic system used with the position fixing
system is displayed.
The display items on the Geodetic System List
screen in 3.8.5 "Set and Display Geodetic
System" are displayed.

Ԙ

ԙ

Ԛ

ԛ

ԝ

Ԝ

2.3 FUNCTIONS OF SOFTWARE BUTTONS

216

2

y y

2.3.6 Software Buttons for Area 6 (Other Ship Information Area)
(Right Side of the Radar Display)

R 9minVector

NM

1minLimit 0.1

R 0.1PAST POSN NM

Range

Filter

R 10minTrails 09:52

Association

AIS

Ԙ㧦

Target vector display true / relative
switching

The tracked target / AIS target vector display is
switched to T (true vector) / R (relative
vector) whenever this button is clicked.
This setting is switched together with the past
position display true / relative switching.

ԙ㧦

Target vector length setting

Set a vector length of the tracked target / AIS
target.
If this button is clicked, the numeric value input
screen is opened. After setting the length,
determine the setting by clicking ENT .

Ԛ㧦

CPA limit setting

Set a CPA limit.
If this button is clicked, the numeric value input
screen is opened. After setting the limit,
determine the setting by clicking ENT .

ԛ㧦

TCPA limit setting

Set a TCPA limit.
If this button is clicked, the numeric value input
screen is opened. After setting the limit,
determine the setting by clicking ENT .

Ԝ㧦

Past position display true / relative
switching

The tracked target / AIS target past position
display is switched to T (true past position) /
R (relative past position) whenever the button
is clicked.
This setting is switched together with the target
vector display true / relative switching.

ԝ㧦

Past position display interval
switching

The past position display interval is switched
whenever the button is clicked.



Ԟ㧦

Past position display interval unit
switching

The past position display interval unit is switched
whenever the button is clicked.

min  NM  min

ԟ㧦

AIS On / Off

The AIS display is switched to On / Off whenever
the button is clicked.

Ԡ㧦

Tracked target symbol display On /
Off

The tracked target symbol display is switched to
On / Off whenever the button is clicked. Use this
function to avoid confusion with the AIS symbol.

ԡ㧦

AIS target symbol display On / Off

The AIS target symbol display is switched to On /
Off whenever the button is clicked. Use this
function to avoid confusion with the tracked
target symbol.

Ԣ㧦

Association On / Off

The tracked target / AIS target association is
switched to On / Off whenever the button is
clicked.

ԣ㧦

AIS filter mode switching

The AIS filter is switched whenever the button is
clicked.

Range  Sector  Zone  Range

Ԙ ԙԚ ԛԜ

ԝ
Ԟ

ԟ
Ԡ
ԡ

Ԣ
ԣ

Ԥ ԥ

217

Ԥ㧦

Radar trails display true / relative
switching

Radar trails are switched to T (true motion
trail) / R (relative motion trail) whenever this
button is clicked.
This setting is restricted by the radar display
motion mode.
In relative motion display mode (RM), switching
to T / R is possible.
In true motion display mode (TM), only T can
be set.

ԥ㧦

Radar trails display time switching

The radar trails display time is switched whenever
the button is clicked.
If the time does not reach the radar trails time that
was set, the remaining time is displayed on the
right-hand side.
If the button is clicked for 2 seconds, the RADAR
Trails Setting menu is opened.

2.3 FUNCTIONS OF SOFTWARE BUTTONS

218

2

y y

2.3.7 Software Buttons for Area 7 (Panel Display Area) (Right Side of
the Radar Display)

DEST

AIS ID

ETA

EPFS

RAIM

POSN

POSN Accuracy

BRG

AIS ID

Range

SOG
CPA

COG

TCPA

NM

kn

min

NM

/min

HDG
ROT

Name

AIS ID

Call SIGN

IMO Number

MMSI

NAV Status

AtoN Real/Virtual

AIS ID

AtoN Type

AIS target information

Information of the selected AIS target can be shown in numerical values.
Only one ship can be selected as an AIS target.
4-page AIS target information is provided.

219

2.3.8 Software Buttons for Area 7 (Panel Display Area) (Right Side of
the Radar Display)

BRG

TT ID

Range
Cource
Speed

NM

kn

BCR NM
BCT min

CPA NM
TCPA min

BCR NM
BCT min

Tracked target information

Information of the selected tracked target can be shown in numerical values.
Two ships can be selected as tracked targets.

2.3 FUNCTIONS OF SOFTWARE BUTTONS

220

2

y y

2.3.9 Software Buttons for Area 8 (Operation and Message Area)
(Right Side of the Radar Display)

Brilliance

< >

Panel VID TT

Day1

Menu

< >

RADARClose TT

MapPlot Test

No Alarm

Ԙ㧦

Exit button

Click this button to exit the menu screen.

ԙ㧦

Main menu / Radar menu

Single-click this button to call up Main Menu.
Double-click this button to call up Radar Menu.

Ԛ㧦

TT menu (target menu)

Click this button to call up TT Menu.

ԛ㧦

Plotter menu

Click this button to call up Plot (Plotter) Menu.

Ԝ㧦

Map menu

Click this button to call up Map Setting.

ԝ㧦

Test menu

Click this button to call up Test Menu.

Ԟ㧦

Screen switch

Click this button to switch the screen between the
brilliance adjustment screen and the screen
information setting screen.

ԟ㧦

Panel brightness setting

Brightness of the operation panel can be changed.
Click this button to adjust brightness. It can be
set in 5 levels.

Ԡ㧦

Radar image brightness setting

Brightness of the radar image (echo) can be
adjusted.
Click this button to change brightness. It can be
set in 4 levels.

ԡ㧦

Tracked target / AIS target
brightness setting

Brightness of the tracked target / AIS target can be
adjusted.
Click this button to adjust brightness. It can be
set in 5 levels.

Ԣ㧦

Day/Night mode switch

Click this button to change the day/night mode in
the following order:

Day1 Ј Day2 Ј Dusk Ј Night Ј Day1

ԣ㧦

User map menu

Click this button to call up a menu screen for
loading a map created by a user.

Ԥ㧦

User setting menu

Click this button to call up a menu screen for
loading the user setting.

ԥ㧦

Alarm display

Click this button to stop the alarm buzzer and the
flashing of the alarm display.
When multiple alarms go off simultaneously, the
alarm that must be acknowledged first is
indicated.
The top line shows an alarm to be acknowledged
by clicking.
The bottom line shows the current alarms one by
one.

Ԧ㧦

Alarm indication

The system alarm indicated in red.
Other information indicated in blue or yellow.

Ԛ
ԙ
Ԙ
ԛ
Ԝ
ԝ

Ԡ

Ԣ

ԡ

ԟ

Ԟ

ԥ
Ԧ

221

SECTION 3

BASIC OPERATION

3.1 FLOW OPERATION ...................................................................................... 3-1

3.1.1 Power ON and Start the System.......................................................... 3-2

3.1.2 Observe and Adjust Video ................................................................... 3-3

3.1.3 Acquire and Measure Data...................................................................3-4

3.1.4 Display and Measure with Reference to CCRP ..................................3-4

3.1.5 End the Operation and Stop the System ............................................ 3-5

3.2 MENU COMPOSITION.................................................................................. 3-6

3.2.1 Overview of Menu Structure ................................................................3-6

3.2.2 Basic Menu Operation.......................................................................... 3-7

3.3 PREPARATION .............................................................................................3-9

3.3.1 Adjust Display Brilliance [BRILL]........................................................ 3-9

3.3.2 Adjust Contra st..................................................................................... 3-9

3.3.3 Adjust Operation Panel Brilliance [PANEL] ......................................3-10

3.3.4 Switch Day/Night Mode [DAY/NIGHT] ...............................................3-10

3.3.5 Adjust Brilliance of Information on Radar Display

(Brilliance Setting) ..........................................................................3-11

3.3.6 Adjust Sound Volume (Buzzer Volume) ............................................3-12

3.3.7 Reset Alarm Buzzer [ALARM ACK] ................................................... 3-12

3.3.8 Set Display Color ................................................................................ 3-13

3.4 BASIC OPERATIONS .................................................................................3-15

3.4.1 Start Transmission [TX/PRF] ............................................................. 3-15

3.4.2 Stop Transmission [STBY]................................................................. 3-15

3.4.3 Change Range (Observation Range Scale) [RANGE+/-] .................3-15

3.4.4 Tune..................................................................................................... 3-16

3.4.5 Control Sensitivity [GAIN/PL] ............................................................ 3-17

3.4.6 Suppress Sea Clutter [AUTO-SEA] ...................................................3-18

3.4.7 Suppress Rain/Snow Clutter [AUTO-RAIN] ......................................3-20

3.4.8 Reject Radar Interference [IR] ...........................................................3-22

3.4.9 Hide/Display Range Rings (RINGS)...................................................3-23

3.4.10 Hide Ship’s Heading Line (HL OFF).................................................3-23

3.4.11 Hide Graphics Information on Radar Display

(Graphic Display) ............................................................................3-24

3.5 GENERAL OPERATIONS ........................................................................... 3-25

3.5.1 Move Cross Cursor Mark by Trackball..............................................3-25

3.5.2 Use EBLs (Electronic Bearing Lines) [EBL1/2]................................ 3-26

3.5.3 Set EBL Operation (EBL1 /2 Setting) ................................................3-29

3.5.4 Display Variable Range Markers [VRM1/VRM2]............................... 3-32

3.5.5 Display Parallel Cursors (Parallel Cursor)........................................3-35

3.5.6 Display Parallel Index Lines (Parallel Index Line)............................3-42

3.5.7 Switch Bearing Display Mode [AZI MODE]....................................... 3-49

3.5.8 Switch True/Relative Motion Display Mode [TM/RM] .......................3-50

3.5.9 Move Own Ship’s Display Position [OFF CENT].............................. 3-51

3.5.10 Display Radar Trails (Other Ships’ Trails) [TRAILS] ......................3-52

3.5.11 Switch Pulse Length (GAIN/PL) ....................................................... 3-55

3.5.12 Expand Targets (Target Enhance) ................................................... 3-56

3.5.13 Use Video Process (Process) .......................................................... 3-57

3.5.14 Zoom ................................................................................................. 3-58

3.5.15 Use Marker [MOB] ............................................................................ 3-59

3.5.16 Marking [MARK] ............................................................................... 3-60

3.5.17 Operate EBL Maneuver Function (EBL Maneuver)........................ 3-61

3.5.18 Operate Multi-Function Control [MULTI] ........................................ 3-63

3.5.19 Operate User Key Switches [User Key 1/2].................................... 3-65

3.5.20 Automatic Acquisition ..................................................................... 3-67

3.5.21 Radar Alarm (Radar Alarm).............................................................. 3-70

3.6 USE OWN SHIP'S TRACK DATA (OWN TRACK) ................................... 3-75

3.6.1 Display Own Ship’s Track (Display Own Track)............................... 3-75

3.6.2 Set Own Ship’s Track Data Storage Interval

(Own Track Interval) ....................................................................... 3-77

3.6.3 Cancel Storing of Own Ship’s Track Data (Own Track Memory) .... 3-78

3.6.4 Clear Own Ship’s Track Data (Clear Own Track).............................. 3-79

3.7 DISPLAY CHARTS...................................................................................... 3-80

3.7.1 Insert/Remove a Card ........................................................................ 3-80

3.7.2 Display Coastline ROM Card Produced by JRC .............................. 3-82

3.7.3 Display ERC Card............................................................................... 3-83

3.7.4 Fill Charts (Fill Land Area)................................................................. 3-84

3.8 DISPLAY NAVIGATION INFORMATION

(NAV INFORMATION DISPLAY)................................................................. 3-85

3.8.1 Display Waypoint Marks (Waypoint Display) ................................... 3-85

3.8.2 Display Navigation Information (NAV Display Setting)................... 3-86

3.8.3 Create/Edit Navigation Information (Edit User Map) ....................... 3-87

3.8.4 Set Navigation Information (User Map Setting) ............................... 3-93

3.8.5 Set and Display Geodetic System................................................... 3-100

3.9 APPLIED OPERATIONS........................................................................... 3-102

3.9.1 Set Radar Signal Processing (Process Setting)............................ 3-102

3.9.2 Set Radar Trails (RADAR Trails Setting) ........................................ 3-105

3.9.3 Set Cursor (Cursor Setting)............................................................. 3-110

3.9.4 Set Screen(Screen Setting) ............................................................. 3-112

3.9.5 Set Scanner (TXRX Setting) ............................................................ 3-122

3.9.6 Set Chart Display (Map Setting)...................................................... 3-124

3.9.7 Set LORAN C (LORAN C Correction).............................................. 3-136

3.10 USE FUNCTION SWITCH [FUNC] ........................................................... 3-137

3.10.1 Operation Procedure...................................................................... 3-137

3.10.2 Function Setting Menu Items ........................................................ 3-138

3.10.3 Overview of Function Operations................................................. 3-139

3.10.4 Overview of Stored Function Setting Data................................... 3-143

3.10.5 Personal Information (PIN Setting) ............................................... 3-144

3.11 USING CARD ............................................................................................ 3-147

3.11.1 Save in and Transfer to Card (MEM CAPA/Copy) ........................ 3-148

3.11.2 Erase/Initialize Card Memory (CLR MEM/INIT Card).................... 3-153

31

3.1 FLOW OPERATION

Each operation is described in detail below.

z Do not put anything on the operation panel.

If you put anything hot on it, it may be deformed.

z Do not give any impact to the operation panel,

trackball, or controls.

Otherwise, any failure or damage may result.

Attention

POWER ON AND

START THE SYSTEM

OBSERVE AND

ADJUST VIDEO

ACQUIRE AND

MEASURE DATA

END THE OPERATION AND

STOP THE SYSTEM

3.1 FLOW OPERATION

32

3

y

y y

z Wait for about 2 seconds before turning on the

power again.

z 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.

z 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.

3.1.1 Power ON and Start the System

Attention

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.

Caution

33

Procedure 1 Check that the ship’s mains are turned on.

2 Press [STBY] key.

The system is turned on, and the preheating time is displayed.
PREHEAT is indicated at the upper left of the radar display.

3 Wait until the preheating time is over.

When the preheating time is over, the preheating time screen disappears, and PREHEAT
at the upper left of the radar display changes to STANDBY .

4 Press [TX/PRF] key.

The radar will start transmission and the antenna will start rotating.
STANDBY at the upper left of the radar display changes to TRANSMIT .

Note: The radar does not start transmission if you press [TX/PRF] key while PREHEAT is

indicated.

3.1.2 Observe and Adjust Video

Procedure 1 Press [RANGE+] key or [RANGE-] key to set the range to the scale

required for target observation.

2 Turn the controls [AUTO-GAIN], [AUTO-SEA], and [RAIN] to obtain the

clearest targets.

Refer to
[GAIN]ψSection 3.4.5 “Control Sensitivity [GAIN/PL]”
[SEA]ψSection 3.4.6 “Suppress Sea Clutter [AUTO-SEA]”
[RAIN]ψSection 3.4.7 “Suppress Rain/Snow Clutter [AUTO-RAIN]”
for how to use each control.

3.1 FLOW OPERATION

34

3

y

y y

3.1.3 Acquire and Measure Data

For details on data acquisition and measurement, refer to Section 3.4 “BASIC OPERATIONS” and Section 4
“MEASUREMENT OF RANGE AND BEARING.”

3.1.4 Display and Measure with Reference to CCRP

The radar video, range, bearing, Target Tracking and AIS data display etc... are displayed with reference to
CCRP (Consistent Common Reference Point).
If scanner is switched, these data are measured from CCRP.
If some kind of functions (for example off center, true motion, bearing scale, etc.) set scanner position to 75%
outside of the PPI range, these data except Target Tracking and AIS data are displayed with reference to scanner
position.
For how to setting CCRP, refer to Section 7.1.6 “Setting of CCRP/Antenna/GPS Antenna Position (CCRP
Setting).”

35

3.1.5 End the Operation and Stop the System

Exit 1 Press [STBY] key.

The radar will stop transmission and the antenna will stop rotating.
TRANSMIT at the upper left of the radar display changes to STANDBY .

Maintain the standby state if radar observation is restarted in a relatively short time.
Only pressing the [TX/PRF] key starts observation.

2 Press the [STBY] key and the [TX/PRF] key together.

The system will be turned off.

When conducting maintenance work, make sure to turn

off the power and unplug the power connector J1 of the

radar process 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.

Warning

3.2 MENU COMPOSITION

36

3

y

y y

3.2 MENU COMPOSITION

The Menu system of this radar equipment consists of the main menu and the submenus up to the lower 2 levels.
You can jump to each menu by pressing the menu button at the lower right of the radar display or the switch on
the operation panel.

3.2.1 Overview of Menu Structure

Press [RADAR MENU] key.

Press [RADAR MENU] key or [1]. Press [8].

Use the RADAR Menu to change the settings of signal processing functions, use the Main Menu to change the
settings of other detailed information, and use the Radar Submenus to change the less frequently used settings
or run the system’s self-diagnostic program.

37

3.2.2 Basic Menu Operation

To open the menu:

Press [RADAR MENU] key.

To close the menu:

Press [RADAR MENU] key.
Alternatively, hold down [0] key until the menu closes.
* Software button ԙ located at the operation/message area in Section 2.3.9 also available to switch

between ON and OFF.

To move to a lower level of the menu:

The menu is in hierarchical structure. Press the numeric keys [1]-[9] corresponding to the desired
menu item number. Control will move to the lower level.
Alternatively, place the cursor over the item and then press [ENT] key.

> is shown at the right end of a menu item having a lower level.

To move to a higher level of the menu:

Press [0] key while the menu is open. Control will return to the higher level from the lower level.
Alternatively, place the cursor over the 0.EXIT item and then press [ENT] key.

To determine an item:

Press the numeric keys [1]-[9] corresponding to the desired item number. The selected item will be
displayed. Alternatively, place the cursor over the item you want to change, and then press [ENT]
key.

To determine the selected item:

Press the numeric keys [1]-[9] corresponding to the selected item number. Alternatively, place the
cursor over the selected item and then press [ENT] key. If you do not change the setting of the
selected item, press [CLR/INFO] key.

3.2 MENU COMPOSITION

38

3

y

y y

Menu Operation with the Trackball

The menu items are software buttons that can be operated with the trackball.
An item can be selected by pointing the trackball cursor to the item and pressing [ENT] key, instead
of using the numeric key.

Example of menu display

The selected item is displayed by
pressing the corresponding numeric
key.

Item number

An item can be selected by pressing
the corresponding numeric key.
An item can also be selected by the
trackball and by pressing [ENT] key.

An item can also be selected by
pointing the trackball cursor to the
item and pressing [ENT] key.

Software button

Press [8] key to move to the lower
level. Movement to the lower level
can also be done by pointing the
trackball cursor to the item and
pressing [ENT] key.

Press [0] key move to the higher level.
Movement to the higher level can also
be done by pointing the trackball
cursor to 0.EXIT and pressing [ENT]
key.

39

3.3 PREPARATION

3.3.1 Adjust Display Brilliance [BRILL]

Procedure 1 Obtain the best-to-see display with optimum brilliance by turning the

[BRILL] control at the lower right of the display unit.

Turning the [BRILL] control clockwise increases the brilliance of the entire display.
Conversely, turning the [BRILL] control counterclockwise decreases the brilliance of the
entire display.

In consideration of the ambient brightness, adjust display brilliance that is high enough to
easily observe the radar display but does not glare.

3.3.2 Adjust Contrast

Adjust the contrast of the radar video display.

Procedure 1 Point the trackball to the VID button (software button Ԡ located at

the operation/message area in Section 2.3.9) at the lower right of the
radar display, press [ENT] key, and then make adjustment to obtain the
best-to-see video.

Point the trackball to the VID button at the lower right of the radar display and then
press [ENT] key to adjust the contrast of the radar video display at four levels.
Each time the VID button is clicked, the contrast level changes in the following
sequence:

Adjust the VID button to obtain the best-to-see video with optimum contrast.

3.3 PREPARATION

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3.3.3 Adjust Operation Panel Brilliance [PANEL]

Brilliance of the operational panel can be adjusted in accordance with the ambient illuminance conditions.

Procedure 1 Press [PANEL] key to adjust the brilliance of the operation panel light.

Brilliance increases as the [PANEL] key is pressed. When it reaches the highest level, it
returns to the lowest level.

In consideration of the ambient brightness, adjust panel brilliance that is high enough to
read the characters on the operation panel but does not glare.

The [PANEL] key lamp lights up irrespective of panel brilliance adjustment.
* Software button ԟ located at the operation/message area in Section 2.3.9 is also

available for switching.

3.3.4 Switch Day/Night Mode [DAY/NIGHT]

Display color arrangement can be easily changed using combinations of colors and brilliance in accordance
with the ambient illuminance conditions.

The day/night mode changes in the following sequence each time the [DAY/NIGHT] key is pressed:
DAY1 o DAY2 o DUSK o NIGHT o DUSK o DAY2 o DAY1 o DAY2
The current mode is indicated at the lower right of the radar display.
The brilliance level in accordance with the selected mode is saved. For brilliance adjustment, refer to next
page. For day/night mode switching, refer to Section 3.3.8 “Set Display Color.”

* Software button Ԣ located at the operation/message area in Section 2.3.9 is also available for switching.

311

3.3.5 Adjust Brilliance of Information on Radar Display
(Brilliance Setting)

Brilliance can be adjusted for each item of information on the radar display by operating the menu.

RADAR Video Adjusts the brilliance of radar echoes.

RADAR Trails Adjusts the brilliance of radar trails.
TT/AIS Adjusts the brilliance of TT symbols and AIS symbols.
FIX Marker Adjusts the brilliance of fixed range markers.
EBL/VRM Adjusts the brilliance of variable range markers (VRM1 and VRM2) and electronic

bearing lines (EBL1 and EBL2).

Character Adjusts the brilliance of characters.
Panel Adjusts the brilliance of operation panel.
Own Ship Adjusts the brilliance of the own ship symbol.

Procedure 1 Press [RADAR MENU] key.

Press [4] key.

Press [2] key.

The Brilliance Setting Menu will appear.

2 Select the item for which brilliance is to

be adjusted, pressing the numeric keys
[1] to [8].

The pull-down menu will appear showing the
brilliance levels.

3 Select the brilliance level number to be

set, pressing the numeric key.

The selected brilliance level will be set.

To change the setting of another item, repeat steps 2 and 3.

Exit 1 Press [RADAR MENU] key.

The menu will be closed.

Note:

The brilliance levels set here are saved in accordance with the day/night mode.

3.3 PREPARATION

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3.3.6 Adjust Sound Volume (Buzzer Volume)

When an alarm goes off, the operation panel of the equipment produces a sound to notify users of state changes.
Adjust the sound volume as follows:

Procedure 1 Press [RADAR MENU] key twice.

Press [8] key.

The RADAR Sub Menu will appear.

2 Press [5] key to select Buzzer Volume.

The pull-down menu will appear showing the
volume levels.

3 Select the volume level number to be

set, pressing the numeric keys [1] to
[5].

The selected volume level will be set.

Exit 1 Press [RADAR MENU] key.

The menu will be closed.

3.3.7 Reset Alarm Buzzer [ALARM ACK]

When an audible alarm is issued, use ALARM ACK to acknowledge the alarm information, stop the alarm
buzzing, and stop the alarm lamp flashing. (If more than one alarm has occurred, press the switch for each
alarm indication.) The alarm stops buzzing, but the alarm indication does not disappear.

Procedure 1 Press [ALARM ACK] key.

The alarm will stop buzzing.

* Software button ԥ located at the operation/message area in Section 2.3.9 is also available to stop buzzing

the alarm.

313

3.3.8 Set Display Color

For each day/night mode, set the colors of the background outside the bearing scale, the background inside the
bearing scale, characters, radar echoes, and radar trails.

Color Adjustment by Menu Operation

Day/Night Registers the switching of a day/night mode.
Own Ship Adjust the colors of the ship's heading marker, own ship symbol, and a vector of

the own ship.

Outer PPI Adjusts the background color outside the bearing scale.
Inner PPI Adjusts the background color inside the bearing scale.
Character Adjusts the colors of characters and bearing scales.
RADAR Echo Adjusts the colors of radar echoes.
RADAR Trails Adjusts the colors of radar trails.

Time: Display interval time is selected.
All:

Continuous display

TT/AIS Adjusts the colors of TT symbols, AIS symbols.

Selecting a Day/Night Mode (Day/Night)

Select the mode for which color setting is to be changed.

Procedure 1 Press [RADAR MENU] key.

Press [4] key.

Press [1] key.

The Display Color Setting Menu will appear.

2 Press [1] key.

The Day/Night mode selection screen will
appear.

3 Select the mode number for color

adjustment, pressing the numeric keys
[1] to [4].

The mode will be selected.

3.3 PREPARATION

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Setting Colors of Items

Set the display color of each item.

Procedure 1 While the Display Color Setting Menu is

open, select the item number for color
setting, pressing the numeric keys [3]
to [9].

The color selection screen will appear.

2. Own Ship: Adjust the colors of the ship's heading

marker, own ship symbol, and a vector of the
own ship.

3. Outer PPI: Adjusts the background color outside the

bearing scale.

4. Inner PPI: Adjusts the background color inside the

bearing scale.

5. Character: Adjusts the colors of characters and bearing

scales.

6. RADAR Echo: Adjusts the colors of radar echoes.

7. 8. RADAR Trails: Adjusts the colors of radar trails.
Time: Display interval time is selected.
All:

Continuous display

9. TT/AIS: Adjusts the colors of TT, and AIS.

2 Select the color number to be set, pressing the numeric key.

The selected color will be set.

To set more than one color, repeat steps 1 and 2.

Exit 1 Press [RADAR MENU] key.

The menu will be closed.

315

3.4 BASIC OPERATIONS

3.4.1 Start Transmission [TX/PRF]

Procedure 1 Press [TX/PRF] key.

The radar will start transmission and the antenna will start rotating.
The indication STANDBY at the upper left of the radar display changes to
TRANSMIT .

Note: The radar does not start transmission if you press [TX/PRF] key while PREHEAT is

indicated.

3.4.2 Stop Transmission [STBY]

Procedure 1 Press [STBY] key.

The radar will stop transmission and the antenna will stop rotating.
The indication TRANSMIT at the upper left of the radar display changes to
STANDBY .

* Software button Ԝ located at the top left corner of the radar display described in Section 2.3.1 is also

available to start/stop transmission.

3.4.3 Change Range (Observation Range Scale) [RANGE+/-]

Procedure 1 Press the [RANGE +] key to expand the observation range.

A larger observation range allows observation of a wider area.
However, objects are shown smaller as the range expands, and objects near own ship are
less likely to be detected. Therefore, use a lower-level observation range to observe the
area around own ship.

2 Press the [RANGE -] key to reduce the observation range.

Area around own ship can be observed in detail as the observation range is reduced.
Note, however, distant images cannot be displayed.

* Software button Ԙ located at the top left corner of the radar display described in Section 2.3.1 is also

available to switch the range.

3.4 BASIC OPERATIONS

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3.4.4 Tune

There are automatic tuning mode and manual tuning mode. 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 dial on the operation panel. The currently selected mode is indicated on the tune mode button
(software button ԣ located at the bottom left corner of the radar display described in Section 2.3.2).

Using the automatic tuning mode

Procedure 1 Move the cursor to the Tune mode button (software button ԣ located at

the bottom left corner of the radar display described in Section 2.3.2)
and press the [ENT] key.

Automatic tuning mode is activated, and AUTO is displayed on the Tune mode button.
The equipment carries out tuning automatically. Tuning is adjusted when transmission
starts, the observation range is changed, or when the pulse width is changed. Tuning
takes only a few seconds.

Using the manual tuning mode

Procedure 1 Move the cursor to the Tune mode button (software button ԣ located at

the bottom left corner of the radar display described in Section 2.3.2),
press the [ENT] key, and set the mode to the manual tuning mode.

Automatic tuning mode is cancelled, and MAN is displayed on the Tune mode button.

2 Turn the [MULTI] dial to set the dial mode to (Tune) .

The multi-dial mode button (ԥ located at the bottom left corner of the radar display
described in Section 2.3.2) shows (Tune) .

3 Turn the [MULTI] dial to adjust tuning.

Turn the dial until the tuning state gauge (Ԡ located at the top left corner of the radar
display described in Section 2.3.1) reaches maximum.

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.

Caution

317

Caution

3.4.5 Control Sensitivity [GAIN/PL]

Procedure 1 Control noise on the radar display by turning the [GAIN/PL] control until

targets can be easily observed.

Turning [GAIN/PL] control clockwise increases sensitivity.
Turning [GAIN/PL] control counterclockwise decreases sensitivity.

Turning the [GAIN/PL] 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/PL] control
counterclockwise to reduce the sensitivity so that the targets are easy to observe. However,
be careful not to overlook important small targets.

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.

3.4 BASIC OPERATIONS

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Caution

3.4.6 Suppress Sea Clutter [AUTO-SEA]

When using the manual sea clutter suppression function

Procedure 1 Control the sea clutter returns on the radar display by turning the

[AUTO-SEA] control until targets can be easily observed.

Turning [AUTO-SEA] control clockwise suppresses sea clutter returns.
Turning [AUTO-SEA] control counterclockwise intensifies sea clutter returns.

The sea clutter suppression function suppresses sea clutter returns by decreasing the receiving
sensitivity on a short range.
Turning the [AUTO-SEA] control clockwise heightens 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.

Using AUTO SEA (automatic sea clutter suppression function)

Sea clutter suppression can be performed in accordance with the level of sea clutter. Use this
function when the clutter level changes with the direction.

Procedure 1 Press the [AUTO-SEA] control.

AUTO SEA is selected, and SEA AUTO is indicated at the lower left of the radar
display. If AUTO SEA is selected, rotating the AUTO RAIN control and AUTO SEA
control can make fine adjustments manually.

Note:

When AUTO SEA is selected, AUTO RAIN is switched to the manual mode.

AUTO SEA and AUTO RAIN cannot be selected at the same time.

Use the AUTO RAIN mode to set both the AUTO SEA and AUTO RAIN to automatic mode

simultaneously.

When using the [AUTO SEA] 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 [AUTO SEA] function, make sure to

choose the most appropriate image noise suppression

level.

319

Cancellation 1 Press the [AUTO-SEA] control.

AUTO SEA is deselected, SEA AUTO at the lower left of the radar display changes to
SEA MAN , and AUTO SEA is cancelled.

* Software button ԡ located at the bottom left corner of the radar display described in Section 2.3.2 is also

available to switch AUTO/MANUAL.

3.4 BASIC OPERATIONS

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3.4.7 Suppress Rain/Snow Clutter [AUTO-RAIN]

When using the manual rain/snow clutter suppression function

Procedure 1 Control the rain/snow clutter returns on the radar display by turning the

[AUTO-RAIN] control until targets can be easily observed.

Turning [AUTO-RAIN] control clockwise suppresses rain/snow clutter returns.
Turning [AUTO-RAIN] control counterclockwise intensifies rain/snow clutter returns.

When the [AUTO-RAIN] control is turned clockwise, the rain/snow clutter suppression
function suppresses rain/snow clutter returns and gets targets hidden by rain/snow clutter
returns to 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 the

[AUTO-RAIN] control is used with the [AUTO-SEA] control. In general, turn the
[AUTO-RAIN] control fully to the left.

Using AUTO RAIN (automatic rain/snow clutter suppression function):

Rain/snow clutter suppression can be performed in accordance with the level of rain/snow
clutter. Use this function when the clutter level changes with the direction.

Procedure 1 Press the [AUTO-RAIN] control.

AUTO RAIN is selected, and RAIN AUTO is indicated at the lower left of the radar
display. Rotating the AUTO RAIN control and AUTO SEA control can make fine
adjustments manually.

Note:

When AUTO RAIN is selected, AUTO SEA is switched to the manual mode.

AUTO SEA and AUTO RAIN cannot be selected at the same time.

Use the AUTO RAIN mode to set both the AUTO SEA and AUTO RAIN to automatic mode

simultaneously.

When using the [AUTO RAIN] function, never set the

suppression level too high canceling out all image

noises from the rain or snow at the 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 [AUTO RAIN] function, make sure to

choose the most appropriate image noise suppression

level.

Caution

321

Cancellation 1 Press the [AUTO-RAIN] control.

AUTO RAIN is deselected, RAIN AUTO at the lower left of the radar display
changes to RAIN MAN , and AUTO RAIN is cancelled.

* Software button Ԣ located at the bottom left corner of the radar display described in Section 2.3.2 is also

available to switch AUTO/MANUAL.