JRC JMA-5212-4 User manual

JMA-5212-4/6
JMA-5222-7/9
JMA-5212-4HS/6HS
SIMPLIFIED MANUAL
1INTRODUCTION ..................................................................................................S-1
1.1 READ ME ....................................................................................................S-1
2BASIC OPERATION.............................................................................................S-2
2.1 POWER ON AND START THE SYSTEM....................................................S-2
2.2 END THE OPERATION AND POWER OFF................................................S-3
2.3 ADJUST MONITOR BRILLIANCE [BRILL]................................................S-3
2.4 CHANGE OBSERVATION RANGE [RANGE + / - ]....................................S-4
2.5 ADJUST GAIN [GAIN / PL] ........................................................................S-4
2.6 SUPPRESS SEA CLUTTER [AUTO-SEA] .................................................S-4
2.7 SUPPRESS RAIN / SNOW CLUTTER [AUTO-RAIN] ................................S-6
2.8 USING ELECTRONIC BEARING LINE (EBL1 / EBL2)..............................S-7
2.9 USING VARIABLE RANGE MARKER (VRM1 / VRM2) ...........................S-10
2.10 SWITCH TRANSMITTER PULSE LENGTH [GAIN / PL] ....................... S-11
2.11 SWITCH AZIMUTH DISPLAY MODE [AZI MODE] ................................. S-11
2.12 SWITCH TRUE / RELATIVE MOTION DISPLAY MODE [TM / RM] .......S-12
2.13 DISPLAY RADAR TRAILS [TRAILS] .....................................................S-13
3TARGET TRACKING OPERATION ...................................................................S-14
3.1 ACQUIRING TARGET [ACQ] ...................................................................S-14
3.2 DISPLAY TRACKED TARGET DATA [TGT DATA] ..................................S-14
3.3 CANCELING TRACKED TARGETS [TGT CNCL]....................................S-15
4AIS OPERATION................................................................................................S-16
4.1 SETTING AIS DISPLAY FUNCTION (AIS FUNCTION)............................S-16
4.2 ACTIVATE AIS TARGETS (ACT AIS) .......................................................S-16
4.3 DISPLAY ACTIVATED AIS TARGET DATA[TGT DATA] ..........................S-17
4.4 DEACTIVATE AIS TARGETS (DEACT AIS) .............................................S-18
5TARGET TRACKING / AIS COMMON OPERATION .........................................S-19
5.1 SETTING VECTORS (VECTOR)...............................................................S-19
5.2 SETTING COLLISION DECISION CRITERIA (CPA / TCPA LIMIT) .........S-20
6OTHER CONTENTS ..........................................................................................S-21
6.1 RESET ALARM BUZZER [ALARM ACK] ................................................S-21
6.2 OPERATION ON NUMERIC VALUE INPUT MENU .................................S-21

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1 INTRODUCTION
1.1 Read Me
About this manual
See the INSTRUCTION MANUAL for details.
Maintain this SIMPLIFIED MANUAL so that operators can refer to it at anytime.
About radar equipment
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.
About sea clutter suppression
When using the sea clutter suppression function, never set the suppression level too high canceling out
all image noises from the sea surface at close range.
Detection of not only echoes from waves but also targets such as other ships or dangerous objects will
become inhibited.
When using the sea clutter suppression function function, make sure to choose the most appropriate
image noise suppression level.
About rain/snow clutter suppression
When using the rain/snow clutter suppression function 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 rain/snow clutter suppression function function, make sure to choose the most
appropriate image noise suppression level.
About target tracking (TT) function
Use target tracking function 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 tracking target
information may cause accidents.
Tracked target 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.

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Simplified Manual
2 BASIC OPERATION
2.1 Power ON and Start the System
Procedures
1 Check that the ship’s mains are turned on.
2 Press the [STBY] key.
The system is turned on, and the preheating time is displayed.
Preheat is indicated upper left of the display.
3 Wait until the preheating time is over.
When the preheating time is over, the preheating time screen disappears, and Preheat upper left of
the display changes to Standby .
4 Press the [TX / PRF] key.
The radar will start transmission and the antenna will start rotating.
Standby upper left of the display changes to Transmit .

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2.2 End the Operation and Power Off
Exit
1 Press the [STBY] key.
The radar will stop transmission and the antenna will stop rotating.
Transmit upper left of the display changes to Standby .
2 Press the [STBY] key and the [TX / PRF] key together.
The system will be turned off.
2.3 Adjust Monitor Brilliance [BRILL]
Procedures
1 Obtain the best-to-see display with optimum brilliance by turning the
[BRILL] dial at the lower right of the LCD monitor unit.
In consideration of the ambient brightness, adjust LCD monitor brilliance that is high enough to easily
observe the radar display but does not glare.

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2.4 Change Observation Range [RANGE + / - ]
Procedures
1 When increasing the observation range, press the [RANGE+] key.
Increasing the observation range will enable a wider range to be observed.
2 When decreasing the observation range, press the [RANGE-] key.
Decreasing the observation range will enable a narrower range to be observed.
2.5 Adjust Gain [GAIN / PL]
Procedures
1 Turning the [GAIN / PL] dial.
By increasing receiving gain, the range to observe radar video is widened.
2.6 Suppress Sea Clutter [AUTO-SEA]
Using the manual sea clutter suppression mode
Procedures
1 Turning the [AUTO-SEA] dial.
The sea clutter suppression function suppresses sea clutter returns by decreasing the receiving gain on
a short range.

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Using the automatic sea clutter suppression mode
Procedures
1 Press the [AUTO-SEA] dial.
The automatic sea clutter suppression mode is selected, and AUTO is displayed in sea clutter
suppression (Sea) mode switching.
2 Make adjustments by turning the [AUTO-SEA] dial.
Even when the automatic sea clutter suppression mode is selected, turning the [AUTO-SEA] dial can
make fine adjustments manually.
Cancellation
1 Press the [AUTO-SEA] dial.
The automatic sea clutter suppression mode is cancelled, and MAN is displayed in the sea clutter
suppression (Sea) mode field.

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2.7 Suppress Rain / Snow Clutter [AUTO-RAIN]
Using the manual rain / snow clutter suppression mode
Procedures
1 Turning the [AUTO-RAIN] dial.
The rain / snow clutter suppression function suppress rain / snow clutter returns by decreasing the
receiving gain.
Since the rain / snow clutter suppression function also has the effect of suppressing sea clutter, the
suppression efficiency improves when the [AUTO-RAIN] dial is used with the [AUTO-SEA] dial.
Using the automatic rain / snow clutter suppression mode
Procedures
1 Press the [AUTO-RAIN] dial.
The automatic rain / snow clutter suppression mode is selected, and AUTO is displayed in the sea
clutter suppression (Sea) mode switching and the rain / snow clutter suppression (Rain) mode
switching.
2 Make adjustments by turning the [AUTO-RAIN] dial and the
[AUTO-SEA]dial.
Even when the automatic rain / snow clutter suppression mode is selected, turning the [AUTO-RAIN]
dial and the [AUTO-SEA] dial can make fine adjustments manually.

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Cancellation
1 Press the [RAIN] dial.
The automatic rain / snow clutter suppression mode is cancelled, and AUTO is changed to
MAN in the sea clutter suppression (Sea) mode field and the rain / snow clutter suppression (Rain)
mode field.
2.8 Using Electronic Bearing Line (EBL1 / EBL2)
[I] Operating EBL (EBL)
Procedures
1 Press the [EBL1] or [EBL2] key.
The EBL adjustment will be highlighted, and the selected EBL becomes operable.
2 Turn the [EBL] dial.
To turn the [EBL] dial to the right, turn the EBL dial clockwise, to turn the [EBL] dial to the left, turn
the EBL dial counterclockwise.

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Cancellation
1 Press the [EBL1] or [EBL2] key again.
The selected EBL display will disappear.
[II] Moving the Starting Point of EBL
The system provides three types of EBL starting points. Select one of them in accordance with
purpose.
:The EBL starting point is defined as the own ship's position.
C :The EBL starting point is moved and fixed on the radar display.
D :The EBL starting point is moved and fixed at the latitude and longitude.
To move the starting point of EBL
Procedures
1 Hold down [EBL] control.
The Jog Dial Button Mode will appear
2 Select 2 Floating EBL using Left Jog Dial, and set Floating EBL for Left
Jog Dial Mode.
3 When setting completes, EBL1 or EBL2 become operable
4 Press the [EBL] dial to set C or D for the EBL1 / EBL2 starting
point mode switching.
The selected EBL starting point mode is switched as shown below each time the dial is pressed.

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5 Put the cursor on the EBL starting point is to be moved, and press the
[ENT]key.
The selected EBL starting point will be determined.
To return the EBL starting point to own ship's position
Procedures
1 Hold down [EBL] control.
The Jog Dial Button Mode will appear
2 Select 2 Floating EBL using Left Jog Dial, and set Floating EBL for Left
Jog Dial Mode.
3 When setting completes, EBL1 or EBL2 become operable
4 Press the [EBL] dial to set for the EBL1 / EBL2 starting point mode
switching.
The selected EBL starting point will be set as the own ship's position.

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2.9 Using Variable Range Marker (VRM1 / VRM2)
To operate VRM
Procedures
1 Press the [VRM1] or [VRM2] key.
The VRM adjustment will be highlighted, and the selected VRM becomes operable.
2 Turn the [VRM] dial.
To turn the [VRM] dial to the right, the VRM control wide, to turn the [VRM] dial to the left, the
VRM control narrow.
Cancellation
1 Press the [VRM1] or [VRM2] key again.
The selected VRM display will disappear.

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2.10 Switch Transmitter Pulse Length [GAIN / PL]
Procedures
1 Press the [GAIN / PL] dial.
The selected pulse length will be displayed in the pulse length indication.
2.11 Switch Azimuth Display Mode [AZI MODE]
Procedures
1 Press the [AZI MODE] key.
The azimuth display modes are switched.

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2.12 Switch True / Relative Motion Display Mode [TM / RM]
Switching Motion Display Mode
Procedures
1 Press the [TM / RM] key.
The motion display mode are switched.
Resetting Own Ship to its Initial Position in True Motion (TM) Mode
Procedures
1 Press the [TM / RM] key for 2 seconds.
Own ship will be reset to its initial position as established when the relative motion mode is changed to
the true motion mode. The ship starts moving from that position.

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2.13 Display Radar Trails [TRAILS]
Changing the length of the trail
Procedures
1 Press the [TRAILS] key.
Values of the length of the radar trail are switched.
Erasing Trails Data
Procedures
1 Press the [TRAILS] key for 5 seconds.
All the saved trails data will be erased. The system starts plotting trails in initial state.
If [TRAILS] key is pressed for 2 seconds, the RADAR Trails Setting menu is opened.
Furthermore, data will be erased if it continues pressing.
Changing Motion Mode of Trails (Trails mode)
Procedures
1 Put the cursor on radar trails display true T / relative R switching,
and press the [ENT] key.
The trails motion modes are switched.
If true motion (TM) mode is selected in azimuth display mode, only the true motion trails mode is
available.

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3 TARGET TRACKING OPERATION
3.1 Acquiring Target [ACQ]
Procedures
1 Put the cursor on the target to be acquired, and press the [ACQ] key.
The target will be acquired and the initial acquisition symbol will be displayed. The vector will be
displayed within one minute.
3.2 Display Tracked Target Data [TGT DATA]
Procedures
1 Put the cursor on the tracked target for which numeric data is to be
displayed, and press the [TGT DATA] key.
The data of the selected target will be displayed.

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3.3 Canceling Tracked Targets [TGT CNCL]
Canceling targets one by one [TGT CNCL]
Procedures
1 Put the cursor on the tracked target to the desired for canceling target,
and press the [TGT CNCL] key.
The vectors and symbols of the tracked targets will disappear, and only the radar video remain.
Canceling all targets collectively [TGT CNCL]
Procedures
1 Press the [TGT CNCL] key for 5 seconds.
The vectors and symbols of all the targets will disappear, and only the radar video remain.

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4 AIS OPERATION
4.1 Setting AIS Display Function (AIS Function)
Procedures
1 Put the cursor on the AIS On / Off AIS , and press the [ENT] key.
The received AIS information will be shown on the radar display.
4.2 Activate AIS Targets (ACT AIS)
Procedures
1 Set the cursor mode to ACT AIS.
The cursor mode will appear as ACT AIS.

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2 Put the cursor on the AIS target to be activated, and press the
[ENT]key.
The selected AIS target will be activated.
4.3 Display Activated AIS Target Data[TGT DATA]
Procedures
1 Put the cursor on the AIS target of which data is to be displayed, and
press the [TGT DATA] key.
The data of the selected AIS target will be displayed.

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4.4 Deactivate AIS Targets (DEACT AIS)
Procedures
1 Set the cursor mode to ACT AIS.
The cursor mode will appear as ACT AIS.
2 Put the cursor on the activated AIS target to be deactivated, and press
the [CLR/INFO] key.
The selected AIS target will be deactivated.