JRC JMA-5104 User manual

JMA-5104/5106/5110
MARINE RADAR
EQUIPMENT
INSTRUCTION
MANUAL

──ABOUT YOUR SAFETY──
Cautions for high voltage
High voltages from hundreds volts to tens of thousands volts are to be applied to the
electronic equipment such radio and radar devices. You do not face any danger during
normal operation, but sufficient cares are required for maintenance, inspection and
adjustment of their internal components. (Authorized maintenance personnel alone are
permitted to implement maintenance, check-ups or adjustment of internal components.)
High voltages of tens of thousands volts are so dangerous as to bring an instantaneous
death from electric shock, but even voltages of hundreds volts may sometimes lead to a
death from electric shock. To prevent such an accident, make it a rule to turn off the
power button, discharge capacitors with a wire surely earthed on an end and make sure
that internal parts are no longer charged before you touch any parts inside these devices.
At the time, wearing dry cotton gloves ensures you further to prevent such danger. It is
also a necessary caution to put one of your hands in the pocket and not to use your both
hands at the same time.
It is also important to select a stable foothold always to prevent additional injuries once
you were shocked by electricity. If you were injured from electric shock, disinfect the
burn sufficiently and get it taken care of promptly.
What to do in case of electric shock
When finding a victim of electric shock, turn off the power source and earth the circuit
immediately. If it is impossible to turn off the circuit, move the victim away promptly
using insulators such as dry wood plate and cloth without touching the victim directly.
In case of electric shock, breathing may stop suddenly if current flows to the respiration
center in the brain. If the shock is not so strong, artificial respiration may recover
breathing. When shocked by electricity, the victim will come to look very bad with weak
pulse or without beating, resulting in unconsciousness and rigidity.

FIRST AID TREATMENTS
☆
☆☆
☆First-aid treatments
As far as the victim of electric shock is not in dangerous condition, do not move him and practice
artificial respiration on him immediately. Once started, it should be continued rhythmically.
（1）Do not touch the victim confusedly as a result of the accident, but the rescuer may also get
an electric shock.
（2）Turn off the power source calmly and certainly and move the victim away quietly from the
electric line.
（3）Call a physician or ambulance immediately or ask someone to call a doctor.
（4）Lay the victim on his back and loosen his necktie, clothes, belt, etc.
（5）a. Examine the victim's pulse.
b. Examine his heartbeat bringing your ear close to his heart.
c. Examine his breathing bringing the back of your hand or your face close to his face.
d. Check the size of the pupils of his eyes.
（6）Open the victim's mouth and take out artificial teeth, cigarette or chewing gum if any.
Keep his mouth open, stretch his tongue and insert a towel or the like in his mouth to
prevent the tongue from suffocating. (If it is hard to open his mouth due to set teeth, open it
with a screwdriver and insert a towel in this mouth.)
（7）Then, wipe his mouth so that foaming mucus does not accumulate inside.

☆
☆☆
☆When pulse is beating but breathing has stopped
(1) Tilt the victim's head back as far as this face looks back. (A pillow may be inserted under his
neck.)
(2) Push his jaw upward to open his throat wide (to spread his airway).
(3) Pinch the victim's nostrils and take a deep breath, block his mouth completely with yours
and blow into his mouth strongly. Take a deep breath again and blow into his mouth.
Continue this 10 to 15 times a minute (blocking his nostrils).
(4) Carefully watch that he has recovered his natural breathing and stop practicing artificial
respiration.
(5) If it is difficult to open the victim's mouth, insert a rubber or vinyl tube into one of his
nostrils and blow into it blocking the other nostril and his mouth completely.
(6) When the victim recovers consciousness, he may try to stand up suddenly, but let him lie
calmly and serve him with a cup of hot coffee or tea to keep him warm and quiet. (Never give
him alcoholic drinks.)
Method of mouth-to-mouth respiration by raising head
Fig.1 Mouth-to-mouth respiration
③
②
①(1) Raise the victim's head. Support his
forehead with one of your hand and his
neck with the other hand. →①
When you tilt his head backward, the
victim, in most cases, opens his mouth to
the air. This makes mouth-to-mouth
respiration easy.
(2) Cover his mouth as widely as possible
with yours and press your cheek against
his nose →②, or, pinch his nostrils
with your fingers to prevent air from
leaking. →③
(3) Blow into his lungs.
Continue blowing into his mouth until his
breast swells. Blow into his mouth as
quickly as possible for the first 10 times.

☆
☆☆
☆When both pulse and breathing have stopped
When no pulse has come not to be felt, his pupils are open and no heartbeat is heard, cardiac
arrest is supposed to have occurred and artificial respiration must be performed.
(1) Place your both hands, one hand on the other, on the lower one third area of his breastbone
and compress his breast with your elbows applying your weight on his breast so that it is
dented about 2cm (repeat compressing his breast 50 times or so a minute).
(Cardiac massage)
(2) In case of one rescuer,
Repeat cardiac massages about 15 times and blow into his mouth 2 times quickly, and repeat
this combination.
In case of two rescuers,
One person repeats cardiac massages 15 times while the other person blows into his mouth 2
times, and they shall repeat this combination.
(Cardiac massage and mouth-to-mouth respiration)
(3) Examine his pupils and his pulse sometimes. When the both have returned to normal, stop
the artificial respiration, serve him with a cup of coffee or tea and keep him warm and calm
while watching him carefully. Commit the victim to a medial specialist depending on his
condition. To let him recover from the mental shock, it is necessary for persons concerned to
understand his situations and the necessary treatments.
①②
③④
Fig.2 Cardiac massage

I
PREFACE
Thank you very much for purchasing the JRC marine radar equipment,
JMA-5104, JMA-5106 and JMA-5110.
This equipment is a marine radar equipment designed to obtain safe
operation of marine ships. The equipment consists of a radar signal
transceiver unit, a LCD display unit and a scanner unit as its main units.
●Before operating the equipment, be sure to read this instruction manual
carefully for correct operation.
●Maintain this instruction manual so that operators can refer to it at
anytime.
Refer to this manual when any inconvenience or defect occur.

II
●
●●
●Before Operation●
●●
●
Various pictorial indications are included in this manual and are shown
on these equipment so that you can operate them safely and correctly
and prevent any danger to you and / or to other persons and any damage
to your property during operation. Such indications and their meanings
are as follows.
Please understand them before you read this manual:
This indication is shown where any person is possibility to be in danger
of being killed or seriously injured, if this indication is neglected and
these equipment are not operated correctly.
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.
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.
The△mark represents CAUTION (including DANGER and WARNING).
Detailed contents of CAUTION ("Electric Shock" in the example on the
left.) is shown in the mark.
The mark represents prohibition.
Detailed contents of the prohibited action ("Disassembling Prohibited" in
the example on the left) is shown in the mark.
The ●mark represents instruction.
Detailed contents of the instruction ("Disconnect the power plug" in the
example on the left) is shown in the mark.
Pictorial Indication
WARNING
CAUTION
Examples of pictorial indication
Warning label
There is a warning label on the top cover of the equipment.
Do not try to remove, break or modify the label.
Electric
Shock
Disassembling
Prohibited
Prohibition
Disconnect the
power plug
instruction
DANGER

III
●
●●
●
Cautions to be used during operation
●
●●
●
The customer should refrain from inspecting or repairing the internal parts of
this equipment.
Inspection or repair other than by specialized service personnel may cause
death or a serious injury of any person.
Please contact the sales department of Japan Radio Co., Ltd. or your local
branch, outlet or sales office with respect to maintenance and repair.
When performing maintenance in increment weather, please be sure to shut
the main power off.
If maintenance work is performed without shutting the main power off, there
is a risk of dying or getting a serious injury of any person by electric shock.
When performing maintenance or inspection of the scanner unit, be sure to
shut off the main power source.
If the scanner suddenly rotates and it hits the human body violently, there is a
risk of dying or getting a serious injury of any person.
Be sure to shut off the main power source when approaching the scanner unit
for the purposes of maintenance or inspection.
If exposured to electric waves at proximate distances, there is a risk of dying or
getting a serious injury of any person.
High Voltage
Since some sections of the modulator (CME-322 or QME-323) generate a high
voltage of about 4000V, no one except service engineers are allowed to touch
inside of the modulator.
There is a risk of dying or getting a serious injury of any person by electric
shock.
When the above setting is set to OFF, microwaves are radiated even if the
scanner unit is not rotating, it may cause death or a serious injury of any
person. Therefore, utmost care is necessary.
Make the setting is set ON after the required operation is completed.

IV
Make sure that the main power is turned off before maintaining the
equipment.
In particular, when a rectifier is used, a voltage is output from the rectifier
even if the power of the display is turned off and the radar is stopped.
If maintenance work is performed without turning off the main power, there is
a risk of equipments breaking down, and dying or getting a serious injury of
any person by electric shock.
When checking a scanner unit for maintenance, make sure that the main
power is turned off and the safety switch attached to the scanner unit is se to
OFF.
If the power is not turned off, there is a risk of equipments breaking down, and
dying or getting a serious injury of any person may occur by electric shock.
And if the rotating scanner unit is touched, there is a risk of equipments
breaking down, and dying or getting a serious injury of any person by electric
shock.

V
Do not touch the insides of the scanner unit, transceiver and display unit.
Touching any high voltage area, you will get an electric shock. For
maintenance, inspection and adjustment of internal parts of these equipment,
consult with our sales office or distributor in your district.
Since the scanner unit radiator rotates, do not approach it.
The scanner unit may start rotating suddenly, and consequently any person
may be struck and be injured. We recommend you to install the scanner unit
radiator on the roof of the wheel house, flying bridge, trestle, radar mast or
any other high position so that no person can approach it. When servicing the
scanner unit, set the scanner unit safety button to the OFF position.
Install the scanner unit at any place higher than any person.
If being exposed directly to electric wave at close range, you may suffer
adverse influence.
When approaching the antenna for maintenance or inspection, set the power
button of the display unit to the ST-BY position.
If being exposed directly to electric wave at close range, you may suffer
adverse influence.
Before starting maintenance work or the like, stop power supply by turning off
the power and disconnecting the power connector from the rectifier and the
display.
Even if the power switch is turned off, there are live components in each unit.
In this status, maintenance or inspection work causes an electric shock,
system failure, or accident.
Immediately after switching the keyboards, the modes of the [GAIN/PL],
[AUTO-TUNE], [AUTO-SEA] and [AUTO-RAIN] knobs may be different from
what they were before switching. Sensitivity might also be lowered, and this
could cause a collision.
Each time the active keyboard is switched, be sure to readjust the four knobs
above so that they are at their optimum settings.
Before disposing of used lithium batteries, insulate by affixing tape to the
positive and negative terminals or by other means.
Otherwise, short-circuiting may occur, resulting in heat generation, bursting
or ignition.

VI
Only specialized personnel shall perform installation work.
Installation work performed by personnel other than specialized personnel
may cause breakdown of the equipment, poor performance, fire, severe elec-tric
shock and other property and human damages.
When you directly connect with the ship's power supply without using the
optional rectifier, measure the voltage between the hull's earth and the
positive side of ship's power spply, and the hull's earth and the negative side of
this. And check voltage of 50 volts or more is not required.
If voltage of 50 volts or more is required, take the measures which do not
require 50 volts or more between the above mentioned terminals.
Connection without taking the measures causes system failure or accident.
This adjustment is a function of adjusting tune indication and peak of echo, it
is already made at the factory.
The default value is 64.
The settings must not be changed on the spot.
When the tune indication and peak of echo shift, if the settings are carefully
adjusted, you can not get the tuning.
The gain falles, a collision etc. may occur.
Do not change this adjustment unnecessarily.
An incorrect adjustment may erase the closest target and a collision may
occur.

VII
Use these radar only as assisting devices for navigation.
Also, the officer should make the final decision for maneuvering by himself.
If you make the final decision of maneuvering only on the information which a
radar display, it may become the cause of accidents, such as collision and
stranding.
Do not set the rain/snow clutter function to too high a suppression level.
Otherwise, not only echoes from rain/snow but also the targets of ships or
dangerous objects are suppressed, which may disturb the detection.
Set the best suppression level whenever you use the ran/snow clutter
suppression function.
Do not set the sea clutter suppression function to a level at which it clears all
sea clutters in short range.
Otherwise, not only echoes from waves but also the targets of ships or
dangerous objects are suppressed, which may disturb the detection.
Set the best suppression level whenever you use the sea clutter suppression
function.
The scanner unit shall be installed where there are not large obstacles in the
direction of the ship's heading line in the same plane.
If there is a large impediment in the same plane as the scanner unit, this may
cause the generation of folse echoes. In particular, if such folse echoes appear
at the ship's heading line, monitoring will be difficult and this may cause
inadequate forecasting of danger.
Do not install the scanner unit near chimney's or the exhaust of chimneys.
Soot will cause the performance of the radar to decrease and heat may cause
breakdown.
Do not install direction antenna or VHF antenna in the vicinity of the scanner
unit. Doing so may cause noise in the antenna reception.
Consideration should be given to separating the radar cable from the cables for
the direction antenna and VHF antenna.
These cables should never be bundled into one. Doing so may cause noise in
the antenna reception.

VIII
If felt is not provided where the rope contacts the scanner, or if the scanner is
supported near the both ends of the radiator, you may damage the unit.
Be sure to apply the rope to the antenna support.
When mounting the scanner unit, please check the maximum length of the
holding bolts.
If the bolts are too long, it gives severe damage to inside of the scanner.
When mounting the scanner unit, please use the attached bolts.
The mounting base thickness must not exceed 15mm (0.6inch).
Provide a distance of 1m or more between a processing unit and a magnetic
compass.
If a processing unit is installed in a position too close to a magnetic compass, it
may affect the magnetic compass.
Install a processing unit in the location that is not affected by seawater.
The processing unit is not waterproof.
Use correct fuse ratings.
The use of incorrect ratings may cause an equipment failure.
The GPS compass JLR-10 of JRC always can output absolute azimuth without
gyro setting.
Therefore, do not set a gyro value when connecting JLR-10.
Since the modulation section contains a magnetron with stored magnetism, do
not place a lock or a magnetic card close to the modulation section.
Otherwise, failures or data corruption may occur in such devices.
Do not use solvents such as thinner, gasoline, benzene, trichlene, and ketone.
These solvents cause discoloration or deterioration.

IX
EQUIPMENT APPEARANCE
Scanner Unit Type NKE-2042 (2 feet)
Scanner Unit Type NKE-2062 (4 feet)

X
Scanner Unit Type NKE-2102 (6 feet)
Processing Unit Type NDC-1260

XI
Display Unit Type NWZ-146 (Landscape) and Keyboard Unit NCE-7640

XII
Display Unit Type NWZ-146 (Portrait) and Keyboard Unit NCE-7640

XIII
Contents
PREFACE ······························································································································I
Before Operation···················································································································II
Cautions to be used during operation··················································································III
EQUIPMENT APPEARANCE ···························································································· IX
Chapter 1 Introduction··································································· 1
1.1 Functions ································································································································1
1.2 Features··································································································································1
1.3 Composition····························································································································2
1.4 Configuration ··························································································································4
1.5 General System Diagram·····································································································11
Chapter 2 Names and Functions in the Keyboard Unit and the Menu Structure ·· 14
2.1 Functions of the Keyboard ···································································································14
2.1.1 Outline of the keyboard functions ···········································································14
2.1.2 Configuration and functions of the keys on keyboard ············································16
2.1.3 Structure and the functions of knobs ······································································19
2.1.4 Structure and functions of the jog dial·····································································20
2.1.5 Structure and functions of the track ball ·································································20
2.2 Description of Screen Display······························································································21
2.3 Menu Functions····················································································································23
2.3.1 Menu structure ········································································································23
General menu [MENU] (1/1 page)··········································································24
Installation setting menu [MENU] (1/3 pages)························································25
Installation setting menu [MENU] (2/3 pages)························································26
Installation setting menu [MENU] (3/3 pages)························································27
Menu by a direct key [TRAILS] (1/1 page) ·····························································28
Menu by a direct key [DIMM] ··················································································29
Menu by a direct key [ALARM ACK] ······································································30
Menu by a direct key [ATA] (1/3 pages)··································································31
Menu by a direct key [ATA] (2/3 pages)··································································32
Menu by a direct key [ATA] (3/3 pages)··································································33
Menu initialization by pressing a key at Power ON ················································34
Setting menu language by pressing a key at Power ON ·······································34
Chapter 3 Operation Procedures ················································ 35
3.1 Operation Flow ·····················································································································35
3.2 Power-on Operation ·············································································································36
3.2.1 Power-on and start··································································································36

XIV
1. Turning on the power [STBY] ············································································36
2. Transmitting [TX/PRF] ·······················································································36
3.2.2 Tuning [AUTO-TUNE] ·····························································································36
1. Switching the tuning mode·················································································36
2. Turning the tuning control [AUTO-TUNE]··························································36
3.2.3 Observation and image adjustment [+RANGE-] ····················································36
3.2.4 Data acquisition and measuring ·············································································36
3.2.5 Operation termination and stop [STBY], [TX/PRF]·················································37
1. Canceling transmission [STBY]·········································································37
2. Turning off the power ·························································································37
3.3 Preparation for Observation·································································································38
3.3.1 Changing the brightness of the LCD ······································································38
3.3.2 Changing the brightness of the keyboard [DIMM]··················································38
3.3.3 Switching the display language [DIMM]··································································38
3.3.4 Setting the volume of the buzzer [ALARM ACK]····················································39
3.3.5 Switching the day/night mode [DIMM]····································································40
1. Switching the day/night mode [DIMM]·······························································40
2. Switching the display color [DIMM]····································································40
3. Switching the brightness of the screen [DIMM]·················································41
3.4 Basic Operation····················································································································43
3.4.1 Transmitting [TX/PRF]·····························································································43
3.4.2 Halting transmission [STBY] ···················································································43
3.4.3 Changing the range [+RANGE-]·············································································43
3.4.4 Erasing/displaying the fixed range marker [RR/HL] ···············································43
3.4.5 Erasing the ship's heading marker [RR/HL] ···························································43
3.4.6 Tuning······················································································································43
3.4.7 Adjusting sensitivity [GAIN/PL] ···············································································43
3.5 General Operation················································································································44
3.5.1 Eliminating radar interference [MENU] ···································································44
3.5.2 When it is raining or snowing [AUTO-RAIN]···························································45
3.5.3 When the sea is rough [AUTO-SEA] ······································································46
3.5.4 Using the trackball [TRACK BALL] ·········································································47
3.5.5 Using VRM [VRM1/VRM2], [JOG DIAL]·································································48
1. Selecting VRM#1/VRM#2 [VRM1/VRM2]·························································48
2. Operating VRM#1/VRM#2 [VRM1/VRM2]························································48
3. Erasing VRM#1/VRM#2 [VRM1/VRM2]····························································48
4. Measuring the distance from own ship using VRM#1 [VRM1/VRM2]··············49
5. Measuring the distance from own ship using VRM#2 [VRM1/VRM2] ············49
6. Setting KM as range units··················································································50
3.5.6 Using EBL (electronic bearing cursor) [EBL1/EBL2], [TRACK BALL]···················51
1. Selecting EBL#1/EBL#2 [EBL1/EBL2] ······························································51
2. Operating EBL#1/EBL#2 [EBL1/EBL2] ·····························································51
3. Erasing EBL#1/EBL#2 [EBL]·············································································51
4. Measuring the bearing from own ship using EBL#1 [EBL1/EBL2]···················52
5. Measuring the bearing from own ship using EBL#2 [EBL1/EBL2]···················52

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6. Using EBL2 as a floating EBL ···········································································52
7. Setting EBL display····························································································53
3.5.7 Changing the bearing presentation method of the PPI screen [AZI MODE]·········54
3.5.8 Changing the center of the PPI screen [OFFCENT]··············································55
1. Setting a position to which the center is moved················································55
2. Canceling the position as the new center··························································55
3. Continuously moving the center ········································································56
4. Canceling the position as the new center··························································56
3.5.9 Using the trail display function [TRAILS] ································································56
1. Setting the trail display function to ON/OFF [TRAILS]······································56
2. Setting a trail interval [TRAILS]··········································································57
3. Clearing stored trail data [TRAILS]····································································57
4. Setting a trail reference level (trail threshold) [TRAILS] ····································57
5. Setting a trail storage suppression distance [TRAILS]······································58
6. Setting a range trail storage [TRAILS]·······························································58
3.5.10 Using the target expansion function [MENU] ·························································59
1. Setting the target expansion function ································································59
2. Canceling the target expansion function ···························································59
3.5.11 Changing the transmitter pulse length [GAIN/PL] ··················································59
Changing the pulse length ······················································································60
3.5.12 Using the zoom function [MENU] ···········································································60
1. Setting the zoom function ··················································································60
2. Canceling the zoom function ·············································································60
3.5.13 Highlighting a target by decreasing unnecessary noise (image processing) [MENU] ·······61
1. Setting image processing [MENU] ····································································61
2. Canceling image processing [MENU] ·······························································62
3. Setting an image processing range [MENU]·····················································62
3.5.14 Switching true/relative motion display [TM/RM] ·····················································63
1. Switching the motion mode ···············································································63
2. Resetting own ship's position in true motion display (TM)································63
3.5.15 Suppressing the power consumption of the radar [MENU] ···································65
1. Using the intermittent transmitting function [MENU] ·········································65
2. Canceling the intermittent transmitting function [MENU] ··································65
3. Setting the period of the transmitting state (the number of antenna rotations) [MENU] ·······65
4. Setting the period of the standby state [MENU]················································66
3.5.16 Monitoring the heading of other ships (targets) [ALARM ACK] ·····························67
1. Using the radar alarm [ALARM ACK]································································67
2. Canceling the radar alarm function····································································67
3. Creating a radar guard zone [ALARM ACK] ·····················································67
4. Setting a radar guard zone [ALARM ACK]························································68
5. Setting a radar guard zone detection level [ALARM ACK] ·······························68
3.5.17 Resetting an alarm (stopping a warning) [ALARM ACK] ·······································69
3.5.18 Displaying parallel line cursors [MENU], [VRM], [EBL] ··········································69
3.5.19 Using the MOB function [MOB]···············································································70
1. Displaying the MOB mark··················································································70