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Operating Precautions
WARNING
To avoid electrical shock, never touch the inside of the scanner when
it is connected to an electrical supply.
Always keep the protective cover on the scanner when it is connected
to an electrical supply. High internal voltages can cause serious per-
sonal injury. The equipment should be routinely serviced, only by JRC
authorised personnel.
Avoid passing close to the scanner when the radar is in use.
The scanner unit rotates quickly and can cause personal injury. Both
this and the enclosed radome should be installed at a high place, such
as a cabin roof, or a specially constructed arch, or radar mast. If the
radiating units cannot be installed above all possible, standing head
height, they should be guarded by a strong, protective, enclosing frame.
Prolonged, close range exposure to radar signals is not recommended.
Before approaching close to the scanner, or dismounting it, ensure
that the STBY/OFF and the X-MIT/OFF keys on the display unit have
both been turned off. The cable connector P1 at the rear of the display
unit should be disconnected before removing the scanner unit from its
installed position.
Never sit on the scanner, nor otherwise subject them to weight. They
are not intended to bear loads and ignoring this advice could cause
damage to important internal components.
CAUTION
You will only get optimum performance from your RADAR 1500
MK2 by carefully following this manual’s instructions. Incorrect op-
eration reduces the performance level and could cause damage to the
equipment.
Remember that radar is only an aid to navigation and can be affected
by many physical, environmental and operational factors. Radar does
not diminish the user’s responsibility to keep a good look out at all
times and to exercise all other navigational prudence and human judge-
ment. Radar is not a substitute for human faculties.
II
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Equipment Photographs
SCANNER UNIT NKE-1063
DISPLAY UNIT NCD-3970A
III
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Table of Contents
Symbols Used In This Manual ------------------------------------------------ I
Operating Precautions --------------------------------------------------------- II
Equipment Photographs ------------------------------------------------------ III
Glossary of radar terms ------------------------------------------------------ IV
SECTION 1 EQUIPMENT OVERVIEW--------------------------------- 1
1.1 FUNCTION --------------------------------------------------------------1
1.2 FEATURES ---------------------------------------------------------------1
1.3 COMPONENTS ---------------------------------------------------------2
1.4 DIMENSIONS -----------------------------------------------------------3
SECTION 2 NAMES AND FUNCTIONS OF THE COMPONENTS ----
4
2.1 CONTROL PANEL -----------------------------------------------------5
SECTION 3 INSTALLATION----------------------------------------------- 7
3.1 UNPACKING AND INSPECTION -----------------------------------7
3.2 PLANNING THE INSTALLATION ----------------------------------7
3.3 MOUNTING THE DISPLAY UNIT----------------------------------9
3.4 MOUNTING THE SCANNER UNIT ------------------------------ 12
3.5 CONNECTING THE SCANNER UNIT CABLE ---------------- 13
3.6 ELECTRICAL CONNECTION ------------------------------------- 15
3.7 INITIAL OPERATION AND SET UP ----------------------------- 18
SECTION 4 OPERATION -------------------------------------------------22
4.1 LAYOUT OF CONTROLS------------------------------------------- 22
4.2 TURNING THE RADAR ON AND OFF -------------------------- 23
4.3 SELECTING A RANGE --------------------------------------------- 25
4.4 ADJUSTING RECEIVER SENSITIVITY------------------------- 25
4.5 ADJUSTING TUNING ----------------------------------------------- 25
4.6 REDUCING SEA CLUTTER --------------------------------------- 26
4.7 ADJUSTING RAIN CLUTTER ------------------------------------- 26
4.8 SETTING LCD CONTRAST ---------------------------------------- 26
4.9 SETTING DIMMER -------------------------------------------------- 26
4.10 SETTING 1/4 OFFSET ----------------------------------------------- 27
IV
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4.11 RANGE MEASUREMENT------------------------------------------ 27
4.12 BEARING MEASUREMENT--------------------------------------- 28
4.13 OPERATING MENU ------------------------------------------------- 29
4.14 SETTING GUARD ---------------------------------------------------- 30
4.15 RINGS------------------------------------------------------------------- 31
4.16 POSITION -------------------------------------------------------------- 31
4.17 WAYPOINT ------------------------------------------------------------ 31
4.18 SELECTION OF DATA FORMATS-------------------------------- 31
4.19 TRAIL ------------------------------------------------------------------- 31
4.20 TARGET EXPANSION----------------------------------------------- 32
4.21 INTERFERENCE REJECTION------------------------------------- 32
4.22 DISPLAY MODE------------------------------------------------------ 32
4.23 PLANNED-TX MODE ----------------------------------------------- 32
4.24 SETTING AUTO/MANUAL TUNING ---------------------------- 33
4.25 IN CASE AN UNUSUAL CONDITION OCCURS
DURING OPERATION ---------------------------------------------- 33
4.26 DISPLAY OF TRANSPONDER ------------------------------------ 34
SECTION 5 MAINTENANCE ---------------------------------------------35
5.1 PREVENTIVE MAINTENANCE ---------------------------------- 35
5.2 CLEANING (MONTHLY INTERVALS) -------------------------- 36
5.3 LCD FILTER SURFACE CLEANING ----------------------------- 36
5.4 FUSE -------------------------------------------------------------------- 36
SECTION 6 AFTER-SALES SERVICE -------------------------------- 37
SECTION 7 SPECIFICATIONS ------------------------------------------38
7.1 GENERAL-------------------------------------------------------------- 38
7.2 SCANNER UNIT------------------------------------------------------ 39
7.3 DISPLAY UNIT ------------------------------------------------------- 39
APPENDIX
Fig. 1 RADAR 1500 MK2 DISPLAY UNIT (NCD-3970A) FLUSH MOUNT
TEMPLATE
Fig. 2 RADAR 1500 MK2 SCANNER UNIT (NKE-1063) RADOME TEM-
PLATE
V
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Glossary of radar terms
The following is a list of abbreviations and acronyms which may be used in the
text of the manual.
A/D
Analog to Digital conversion
ALM Alarm In, also known as the approach alarm. Used to warn of ap-
proach to a preset zone or to a zoned target.
CPU
EBL
EXP
FTC
GPS
IR
Central Processing Unit
Electronic Bearing Line
Expansion
Fast Time Constant, also known as rain and snow clutter suppression
Global Positioning System
Interference Rejection
KM
LCD
LL
Kilometer
Liquid Crystal Display
Latitude/Longitude
MH
NM
PCB
PPI
Modulator High voltage
Nautical Mile
Printed Circuit Board
Plan Position Indicator (ship’s position/center screen)
Pulse Width
PW
RR
Range Rings (fixed)
SHM Ship’s Heading Marker
STBY Standby
STC
TD
TI
Sensitivity Time Control, also known as sea surface clutter suppression
Time Difference
Trigger
VD
Video
VOM Volt-ohm Meter
VRM Variable Range Marker
WPT Waypoint
X-MIT Transmit
VI
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SECTION 1
EQUIPMENT OVERVIEW
1.1 FUNCTION
Congratulations on selecting the JRC RADAR 1500 MK2 LCD system to
assist with your navigation.
Whether you purchased this radar because of its compactness, power economy,
ease of installation, or long term reliability, one thing is certain, the moment
you turn on your RADAR 1500 MK2 Display you will know that you are
seeing a revolutionary new concept in radar technology.You are the proud owner
of a radar system unmatched in the marine recreational industry.
Radar signals are stored on an LCD display with excellent graphic clarity and
detail. A single glance at your Display will give you a complete and accurate
360°radar picture of other vessels, buoys and land surrounding your vessel.
1.2 FEATURES
● Easy operation using J-DIAL and JOYSTICK
● High speed rotation antenna
● Easy to understand, cursor-originated target information of range, bearing
and Lat/Long
● Compact, lightweight scanner and display
● Intermittent transmission for power saving
● 1/4 radius offset
● 6 languages (English, French, Spanish, German, Norwegian and Italian)
built-in
● Automatic tuning features
● Relative, Magnetic, and True bearing readout for EBL, WAYPOINT and
cursor
● Dual IF bandwidth for high sensitivity
● On-screen trail function to see the relative course of displayed targets
● Variable on-screen data including own ship’s position, cursor position with
Lat/Long, ship’s course and range/bearing to waypoint with LL
EQUIPMENT OVERVIEW
1
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1.3 COMPONENTS
The table below lists the components which are included with your new radar
system.
Description
Model No. or Code No.
JMA-1020
Remarks
Radar 1500 MK2 system
Scanner Unit
NKE-1063
Display Unit
NCD-3970A
MPBX39815
CFQ8768-15
CFQ-8572
Bracket
Interunit Cable
8-cores composite cables (15 m)
with Fuse (2 m)
This Manual
Power Cable
Instrution Manual
Standard Spares
Sun Cover
7ZPRD0593
6ZXRD00190
MTV303726
MPXP31681A
MPTG30149
MPTG30380
5 A Fuse × 1
Scanner Mounting Hardware
Display Mounting Hardware
Console Mounting Screw
Screw × 4
Screw × 4
Table 1-1 EQUIPMENT SUPPLIED
2
EQUIPMENT OVERVIEW
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1.4 DIME
FIG. 1-1 DISPLAY MOUNTING DIMENSIONS
FIG. 1-2 SCANNER MOUNTING DIMENSIONS
EQUIPMENT OVERVIEW
3
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SECTION 2
NAMES AND FUNCTIONS OFTHE
COMPONENTS
DISPLAY UNIT
VRM/EBL Key
J-Dial
Joystick with MENU/ENT
OFFSET Key
Contrast/Dimmer Key
Transmit/off Key
Stand-by/off Key
DISPLAY UNIT
LATCH
INTER UNIT
CONNECTOR
POWER INPUT/
NMEA/
COMPASS
CONNECTOR
FIG. 2-1 DISPLAY UNIT
4
NAMES AND FUNCTIONS OF THE COMPONENTS
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2.1 CONTROL PANEL
① STAND-BY/OFF Key
・ Turns ON power to Display and Scanner and activates 90 second count-
down timer.
・ Press STBY/OFF key to go into Stand-by mode while in the Transmit mode.
・ Press STBY/OFF and X-MIT/OFF keys simultaneously to turn radar off.
② TRANSMIT/OFF Key
・ Turns transmitter ON and activates Radome.
・ Press STBY/OFF and X-MIT/OFF keys simultaneously to switch off the
radar.
③ J-DIAL
・ Push repeatedly to select RANGE, SEA, RAIN, GAIN, TUNE controls.
RANGE increases or decrease the range scale in use.
SEA
reduces sea clutter.
RAIN
GAIN
TUNE
reduces rain or snow clutter.
controls strength of returned echoes.
manually fine tunes receiver by peaking tuning bar (No tuning
bar in AUTO tune).
・ SEA, RAIN, GAIN, TUNE, VRM, EBL, CONTRAST can be user-set for
best efficiency.
④ EBL/VRM Key
・ Activates EBL or VRM on the display. A short press will turn on/off se-
lected EBL/VRM. Press and hold, to select and control the desired EBL or
VRM by rotating the J-DIAL.
⑤ JOYSTICK
・ Position cursor setting.
・ Enables MENU for setup and selections.
OPERATING MENU
GUARD
OFF
ON
ON
RINGS
OFF
L/L
POSITION
WAYPOINT
BEARING
OFF
OFF
REL
TD
WPT
ON
MAG.
TRUE
NAMES AND FUNCTIONS OF THE COMPONENTS
5
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TRAIL
OFF
OFF
OFF
DAY
SHORT
ON
LONG
EXP
IR
ON
DISPLAY
TX-PLAN
TX PERIOD
NIGHT
ALL 10 20 30 SCANS
STBY PERIOD 3 5 10 15 MINS
TUNE AUTO MANUAL
INITIAL SET UP MENU
RELATIVE BEARING ALIGNMENT
DISPLAY TIMING
TUNE PRESET
STC PRESET
BUZZER VOLUME ON OR OFF
OPER. PROMPTS
LANGUAGE
⑥ OFFSET Key
・ To shift own ship on screen.
⑦ CONTRAST/DIMMER Key
・ Setts LCD contrast.
・ Sets back light for LCD and panel illumination.
6
NAMES AND FUNCTIONS OF THE COMPONENTS
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SECTION 3
INSTALLATION
This section provides practical guidelines to assist in the planning and installa-
tion of the RADAR 1500 MK2.
3.1 UNPACKING AND INSPECTION
Use care when unpacking the RADAR 1500 MK2 from the shipping carton to
prevent damage to the contents. It is also good practice to save the carton and
the interior packing material until the radar has been satisfactorily installed.
The original packing material should be used in the unlikely event that it is
necessary to return the unit for service.
3.2 PLANNING THE INSTALLATION
The layout for installing the RADAR 1500 MK2 should be planned to give
the best operation and service aboard your particular vessel. In general, the
scanner unit should be mounted as high as possible above the waterline and the
display unit should be installed in a convenient viewing position near the helm.
Keep in mind the optimum viewing angle when installing the display. You may
wish to apply power before finally installing the unit so that you can determine
a satisfactory viewing angle.
A 15 meter length of interunit cable is supplied for connecting the two main
units (scanner and display). This length should be sufficient to complete the
cable run required on most small vessels. It is, however, recommended that the
maximum length of interunit cable does not exceed 20 meters.
A general system diagram for the RADAR 1500 MK2 is shown on the follow-
ing page. (See FIG. 3-1)
INSTALLATION
7
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FIG. 3-1 GENERAL SYSTEM DIAGRAM
8
INSTALLATION
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3.3 MOUNTING THE DISPLAY UNIT
When planning the installation for your display unit, the following conditions
should be considered to ensure dependable and trouble-free operation.
1) The mounting location should be accessible enough to allow easy operation
of all the front panel controls.
2) There should be adequate ventilation.
3) There should be sufficient space behind the display unit to allow for cable
connections to its rear.
4) The display unit should be located near a DC power source.
5) The selected location should be far enough away from any device which
might cause interference, such as motors, generators and echo sounders.
6) Generally, the display unit should be located in a protected area, away from
prolonged direct exposure to rain and salt spray. It is good practice to pro-
tect your valuable electronic equipment as much as possible.
The display unit can be conveniently bracket-mounted on a chart table, or flush
mounted in a bulkhead or other convenient panel. Using the outline of FIG. 3-1
and FIG. 3-3 as a guide, install the display unit and secure it firmly to the mount-
ing surface.
Table Top
Mounted
60 mm (Min.)
FIG. 3-2 TYPICAL MOUNTING METHOD
INSTALLATION
9
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When the display unit is mounted overhead, remove the mounting plate, which
is secured by four screws and rotate it through 180 degrees for re-assembly on
the other side of the unit.
4 SCREWS
BRACKET
DISPLAY UNIT
MOUNTING
PLATE
BRACKET
The display unit is separated from
the bracket in the shipping carton.
Install the display unit by sliding
it onto the bracket until it is fully
seated.
DISPLAY UNIT
To remove the unit simply de-
press the latch on the rear of the
display unit and lift.
LATCH
BRACKET
10 INSTALLATION
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FIG. 3-3 DISPLAY MOUNTING DIMENSIONS
FIG. 3-4 SCANNER MOUNTING DIMENSIONS
INSTALLATION 11
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3.4 MOUNTING THE SCANNER UNIT
CAUTION
The scanner unit requires a minimum mounting surface thick-
ness of 3 mm (0.12 inches). If the thickness of the mounting base
is less than this, additional flat washers are required. If the thick-
ness is more than 15 mm (0.6 inches), longer hexhead bolts are
required.
Selecting an adequate location for the scanner unit requires careful consider-
ation. On many small vessels, the unit can be installed on a mast platform, on
an arch or on a bridge structure near the ship’s center line.
The radiator beam should not be obstructed by nearby large objects. Locate the
unit where large structures such as superstructures, searchlights, horns or masts
are not in the same horizontal plane, otherwise blind areas and false targets will
appear on the radar screen.
Using the outline drawing of FIG. 3-4 or the template in the front of the manual
as a guide, install the scanner unit by securing it to a solid mounting surface.
The attachment bolts are stainless steel hexhead bolts M6, 31.75 mm (1.25”)
long. Both flat and lock washers should be used. (See FIG. 3-5)
Note: Do not apply excessive torque to fix the bolts. Use a 11 cm-long wrench
(Fixing torque: 87 kgf-cm).
Chassis
28 mm (1.4 inch)
Radome base
Mounting base
Thickness
3-15 mm (0.12-0.6 inch)
Plain washer
Lock washer
Stainless steel bolt
L=31.75 (1.25 inch)
5/16-18 UNC
(attached)
FIG. 3-5 MOUNTING BOLTS for SCANNER UNIT
12 INSTALLATION
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Usually, the mounting surface for the
scanner unit should be parallel with
the ship’s waterline. Some vessels,
however, may adopt a higher bow
angle at some cruising speeds. This
substantially alters and raises the
radar’s radiation plane. In this case
nearby target detection might be
poor. It may be helpful to lower the
radar beam towards the FORWARD
parallel by shimming the radar ped-
estal in order to tilt the beam angle
slightly downward with respect to
the waterline.
15
15
MAIN BEAM
WATERLINE
IDEAL RADIATION PLANE
FORWARD
USING SHIMS TO
TOWER THE MAIN BEAM
WEDEGE or
WASHERS
3.5 CONNECTING THE SCANNER UNIT CABLE
The scanner unit is supplied with an interunit cable, which includes a plug (P1)
for connection to the display unit. If your installation does not allow you to run
the cable with the plug (P1) attached, the wire cable can be disconnected and
reconnected inside the scanner unit. When reconnected, be sure to include the
cable clamp, the rubber grommet, and the clamping plate. (See FIG. 3-6)
INSTALLATION 13
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FIG. 3-6 ASSEMBLING PROCEDURE FOR CABLE
14 INSTALLATION
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3.6 ELECTRICAL CONNECTION
3.6.1 DC POWER CABLE
The RADAR 1500 MK2 will work with any electrical supply within the 10.2
to 16 V range, since it contains a power regulator circuit. Connect the power
cable to a DC source capable of supplying at least 3.5 A. The power cable
should normally be wired through a circuit breaker. The red lead wire of the
power cable must be connected to the positive source terminal and the black
lead to the source negative terminal. The shielded wire is be connected to Boat
Main ground. Should the power connections be inadvertently reversed, a pro-
tective fuse will blow. In this event, check the input power leads for correct
polarity with a VOM and reconnect the leads in their correct polarity. Replace
the fuse. The fuse is located in the power cable. [NORMAL-BROW FUSE (5
A) SHOULD BE SPECIFIED]
3.6.2 EXTERNAL SYSTEM INTERFACE
The RADAR 1500 MK2 will interface with any NAV-AID (GPS or LORAN)
and compass with the standard NMEA0182 or NMEA0183 output. The inputs
from the NAV-AID must be digital data conforming to the NMEA0183 formats
to drive various radar features such as waypoint mode. If more than one data
type is present at the radar input (for example; compass and NAV-AID) a prior-
ity system has been established in the radar’s software to respond to the inputs
in driving the features. The assigned priorities are set in this manner:
HEADING:
1. Compass (NMEA0183 “HDG,HDM,HDT,VHW”)
2. NAV-AID (NMEA0183 “RMC,RMA,VTG”)
1. NAV-AID (NMEA0l83 “RMC,RMA,GLL,GTD”)
1. NAV-AID (NMEA0183 “RMC,RMA,VTG”)
2. Compass (NMEA0183 “VHW”)
POSITION:
SPEED:
WAYPOINT:
1. NAV-AID (NMEA0183 “RMB,BWC”)
Using the outline of FIG. 3-7, FIG. 3-8 as a guide, connect the RADAR 1500
MK2 to your NAV-AID and compass.
INSTALLATION 15
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FIG. 3-7 INTERCONNECTION DIAGRAM
16 INSTALLATION
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DISPLAY UNIT
TO SCANNER UNIT
YEL
GRN
BLU
(+)
TO NAV-AID
(–)
+: NAV-AID'S Data Output
–: NAV-AID'S Data Ground
(+)
TO COMPASS
(–)
+: COMPASS'S Data Output
–: COMPASS'S Data Ground
WHI
RED
FUSE
+
–
BLK
DC12V
BATTERY
FIG. 3-8 NAV-AID INTERCONNECTION
INSTALLATION 17
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3.7 INITIAL OPERATION AND SET UP
3.7.1 INSPECTION AFTER INSTALLATION
After completing the installation and prior to energizing the equipment, it is
necessary to ensure that all steps of the installation were accomplished in ac-
cordance with the instructions. Make sure that:
(1) The cables are not pinched or damaged.
(2) The allowed voltage is not exceeded and the polarity is correct.
(3) All bolts are tight.
(4) The power cable shields has been properly connected to Boat Main ground.
3.7.2 OPERATING THE INITIAL SET UP MENU
To access this menu, push in the JOYSTICK until the INITIAL SET UP menu
appears. The JOYSTICK is then used to select a particular item on the menu by
depressing it.
INSTALLATION ADJUSTMENTS
BEARING
DISPLAY TIMING
TUNE PRESET
STC PRESET
BUZZER
OPER PROMPTS
LANGUAGE
INSTLLATION ADJUSTMENTS MENU
18 INSTALLATION
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3.7.3 TUNE PRESET
Perform this step after the radar has been X-MITTING for 10 minutes.
① Set the range to 3 NM.
② Set gain to desired level.
③ Turn SEA and RAIN all the way down.
④ Turn IR off.
⑤ In the INITIAL SET UP MENU select Tune preset.
⑥ Move the bar to using the J-DIAL to get the strongest signal back.
Note: There may be 2 positions where the targets are strong. Pick the stron-
gest of the 2.
⑦ Press the JOYSTICK to save and exit.
T
T
T
TUNE PRESET ADJUST MODE
TUNE PRESET ADJUST MODE
TUNE PRESET ADJUST MODE
ADJUST W/J-STICK ∧ ∨
PRESS J-STICK TO END
ADJUST W/J-STICK ∧ ∨
PRESS J-STICK TO END
ADJUST W/J-STICK ∧ ∨
PRESS J-STICK TO END
3.7.4 STC PRESET
① Set range to 6 NM.
② Set Gain to maximum.
③ In the INITIAL SET UP MENU select STC PRESET.
④ Use the J-DIAL to remove all background noise from 0 － 2 NM.
⑤ Press the JOYSTICK when done.
STC PRESET ADJUST MODE
STC PRESET ADJUST MODE
ADJUST W/J-STICK ∧ ∨
PRESS J-STICK TO END
ADJUST W/J-STICK ∧ ∨
PRESS J-STICK TO END
INSTALLATION 19
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3.7.5 RELATIVE BEARING ALIGNMENT
This step must be performed. Failure to do so may result in incorrect bearing
readings.
① Set the range to 1.5 NM.
② Identify a suitable target such as a buoy and position the boat between 0.5
NM and 1 NM.
③ Point the bow at the target.
④ In the INITIAL SET UP MENU select BEARING.
⑤ Locate the target on the display.
⑥ Move the marker over the target.
⑦ Press the JOYSTICK once.
⑧ Move cursor back to the SHM (Ships Heading Marker is the solid vertical
line on the display).
⑨ Press JOYSTICK in when done.
3.7.6 DISPLAY TIMING
This step must be performed. Failure to perform this step may result in incor-
rect target distance reading.
① Set the range to 0.25 NM.
② Locate a pier, a jetty, a bridge (close to water line) or any other straight
object. Position the vessel so that it appears on the display. It does not
matter which way you are facing.
③ In the INITIAL SET UP MENU select DISPLAY TIMING.
④ If the bridges, pier or jetty does not appear to be in a straight line on the
display, then the DISPLAY TIMING needs to be adjusted.
⑤ Use the JOYSTICK to adjust the timing and make the object appear straight
on the display.
⑥ Press JOYSTICK when done.
PUSHING
DISPLAY TIMING EARLY
PULLING
DISPLAY TIMING LATE
CORRECT
20 INSTALLATION
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3.7.7 Buzzer ON or OFF
① In the INITIAL SET UP MENU select BUZZER.
② Select ON or OFF.
③ Press JOYSTICK when done.
3.7.8 OPERATOR PROMPTS
Operation prompts can be helpful to new users operating the radar. The default
setting is ON.
① In the INITIAL SET UP MENU select OPER.PROMPT.
② Select ON or OFF.
③ Press JOYSTICK when done.
3.7.9 LANGUAGE
English is the default language. It can be changed to Spanish, French, German,
Norwegian, and Italian.
① In the INITIAL SET UP MENU select LANGUAGE.
② Select the desired Language.
③ Press JOYSTICK when done.
INSTALLATION 21
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SECTION 4
OPERATION
In normal operation the RADAR 1500 MK2 is very easy to use and several of
its functions are totally automatic. However, the prudent navigator spends time
in good visibility to learn the layout of the controls and to become proficient in
their use, so that he/she will obtain the best performance from the equipment
when the visibility is poor, or the sea area is crowded.
This section takes you through the controls step-by-step.
4.1 LAYOUT OF CONTROLS
The layout of front panel controls is as shown in FIG. 4-1.
VRM/EBL Key
J-Dial
Joystick with MENU/ENT
OFFSET Key
Contrast/Dimmer Key
Transmit/off Key
Stand-by/off Key
FIG. 4-1 OPERATING CONTROLS
22 OPERATION
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4.2 TURNING THE RADAR ON AND OFF
TO TURN ON
Press the STBY/OFF key.
TO TRANSMIT Press the X-MIT key.
TO STAND-BY
TO TURN OFF
Press the STBY/OFF key.
Press the STBY/OFF key and the X-MIT/OFF key si-
multaneously.
When you
Press the STBY/OFF key, a 90 second warm-up count down timer is activated
and displayed together with the total (display unit) usage to date.
Press the X-MIT/OFF key, the radar transmits, the scanner begins to rotate and
echoes will appear on the screen.
Press the STBY/OFF key, the radar returns to stand-by mode to reduce battery
drain. The rotator stops.
Press the X-MIT/OFF key again, the radar reverts to full transmitting function.
These sequences are also guided by on-screen prompts.
90 SEC
0000HOURS
VX.X
PUSH XMIT TO OPERATE
FIG. 4-2 TURNING THE RADAR ON/OFF
OPERATION 23
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INTERFERENCE REJECTION "ON"
TARGET EXPANDER "ON"
RANGE RING INTERVAL (NM)
RANGE SCALE (NM)
OWN SHIP COURSE DATA
OWN SHIP SPEED DATA SELECTING J-DIAL
LEVEL INDICATOR
TUNE INDICATOR
NAVIGATION DATA
TRAIL "ON"
GUARD ZONE ALARM "ON"
POSITION DATA
FIG. 4-3 LAYOUT OF THE SCREEN
24 OPERATION
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4.3 SELECTING A RANGE
Press the J-DIAL until RANGE is highlighted in the upper right corner of the
display. The range scale and range rings setting in use is shown in the upper left
corner. Rotate the J-DIAL clockwise to increase the range and anti-clockwise
to decrease it. The range rings are automatically set to correspond with this
selection.
4.4 ADJUSTING RECEIVER SENSITIVITY
Press the J-DIAL until GAIN appears highlighted in the upper right corner of
the display. Rotate the J-DIAL clockwise or counterclockwise, to vary the gain
and thus control the strength of echo returns on the radar screen. An on-screen
bar indicates the gain level selected. The proper setting is when the background
noise is just visible on the screen. (i.e. a light speckled effect)
4.5 ADJUSTING TUNING
Press the J-DIAL until the TUNE appears highlighted at the upper right corner
of the display. Rotate the J-DIAL clockwise or counterclockwise, to maximize
the target echo. If there is no large, identifiable target (e.g. big ship or land)
within range, select SEA CLUTTER and turn the control to maximum. Use
these echoes from wave crests to adjust the tuning bar for fullest attainable
deflection. This is best done with the range set to 3 nm or 6 nm.
When the radar has warmed up, it may be necessary to make a further fine tune
adjustment.
AUTO TUNE
The RADAR 1500 MK2 has an automatic tuning feature. In this mode, the
radar automatically tunes itself for best efficiency at all ranges. (refer to 4.24)
OPERATION 25
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4.6 REDUCING SEA CLUTTER
CAUTION
Increasing the SEA CLUTTER control effectively diminishes the
radar’s sensitivity. SEA CLUTTER should never be advanced to
the point where it obliterates all returns from waves, since this
setting could prevent the detection of nearby targets, especially
small wood/grp boats and yachts approaching head-on.
The SEA CLUTTER control is normally only used on the shorter ranges to
suppress the effect of sea clutter formed by breaking wave crests which the
radar “sees” as solid objects.
Press the J-DIAL until the SEA appears highlighted in the upper right corner of
the display. Rotate the J-DIAL clockwise, or counterclockwise to vary the sea
clutter control and thus control the strength of echo returns from the sea sur-
face. The on-screen bar indicates the selected level.
4.7 ADJUSTING RAIN CLUTTER
Press the J-DIAL until the RAIN appears highlighted at the upper right corner
of the display. Rotate the J-DIAL clockwise or counterclockwise, to vary the
level and thus control the strength of echoes returned from rain or snow. As you
rotate clockwise, the returned echoes will become narrower and the returns
from rain or snow will be reduced.
4.8 SETTING LCD CONTRAST
Press the CONT/DIM key, and then rotate the J-DIAL clockwise or counter-
clockwise to change the display contrast.
4.9 SETTING DIMMER
By pressing the CONT/DIM key, the back light for the LCD and the panel
illumination can be varied in intensity. This function has only the two settings
“ON” and “OFF”.
26 OPERATION
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4.10 SETTING 1/4 OFFSET
By pressing the OFFSET key, the display is offset downwards by 1/4 radius,
expanding the display area in front of the vessel. Press the key a second time to
return the display to normal.
OFFSET MODE OFF
OFFSET MODE ON
4.11 RANGE MEASUREMENT
(1) Count the number of range scale rings in use between the center of the
screen and the ring preceding the target. Add to this distance an estimate of
the distance between this nearest ring and the inner edge of the target.
(2) Using VRM
Press the EBL/VRM key.
If EBL is highlighted, press and hold the EBL/VRM key to change to VRM
mode and activate the split-line VRM ring.
Rotate the J-DIAL clockwise to expand the VRM ring and increase its range.
To lessen the indicated range, rotate the dial in an anti-clockwise direction. The
actual target distance, in nautical miles, from the ship appears on the center top
of the screen in.
To turn off the VRM, press the EBL/VRM key while VRM is highlighted.
OPERATION 27
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(3) Using cursor
Press the JOYSTICK to make the cross cursor appear on the screen. The
cross mark can be moved any direction by using the JOYSTICK. The range
and bearing will be displayed at the lower right corner on the display.
4.12 BEARING MEASUREMENT
(1) Using the bearing scale
Using the bearing scale on the screen, visually estimate a line from the cen-
ter of the display (ship’s position) projected through the center of the target,
to reach the bearing scale around the perimeter of the display. The bearing
which you obtain is the terget’s relative bearing in degrees.
(2) Using EBL
Press the EBL/VRM key.
If VRM is highlighted, press and hold the EBL/VRM key to change to EBL
mode.
Rotate the J-DIAL clockwise or counterclockwise to move the electronic bear-
ing line to cut the center of the target. The target bearing (in degrees relative to
the ship) then appears at the top center of the screen. The bearing may be dis-
played in relative “R”, true or magnetic “M” depending on the menu selection
and what other equipment is interfaced to the rader.
To turn off the EBL, press the EBL/VRM key while EBL is highlighted.
28 OPERATION
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4.13 OPERATING MENU
Press the JOYSTICK to access the first menu sheet.
The JOYSTICK is then used to select a particular menu. Press again to open up
the sub menu, which will be displayed to the right side of the selected menu
with the “
” mark. The DISPLAY can be scrolled for the second menu
sheet which is below IR selection. GUARD on the first menu sheet is below
TUNE on the second menu and so on.
Pressing the JOYSTICK again will return the display to the normal video pre-
sentation.
FIRST MENU
SECOND MENU
FIG. 4-4 FIRST/SECOND MENU SHEET
OPERATION 29
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4.14 SETTING GUARD
The guard zone alarm is effective for alerting the operator to targets approach-
ing his own ship. An alarm is sounded when any (apparent) target returning an
echo above the noise threshold is detected. If sea clutter, or other incidental
echoes trip the alarm, adjust the gain control and/or the sea clutter to avoid this
false alarming.
① Press the JOYSTICK to display the menu sheet.
② Select GUARD-ON and press the JOYSTICK. The radar display returns to
the normal video presentation.
Corsor appears on the PPI screen and shows the distance and the azimuth of
the Maker. It displays the distance help line and the azimuth help line of the
dotted line.
CURSOR
③ Move the cursor to the desired guard
zone start point using the JOYSTICK
and then press the JOYSTICK again.
THE AZIMUTH
The distance help line and the azimuth
HELP LINE
THE DISTANCE
HELP LINE
help line of the dotted line are displayed
in the fixation in the start point posi-
tion at this time.
START POINT (cf.
)
③
CURSOR
④ Next, move the cursor to the desired
guard zone Width point of your Guards
zone then press the JOYSTICK con-
trol.
START
POINT
THE NEW
DISTANCE
HELP LINE
It displays the distance help line of the
dotted line which is new at this time.
⑤ Next, move the cursor to the desired
end point of your guard zone then press
the JOYSTICK control. A ring in the
distance range is displayed by the solid
line at this time.
GUARD ZONE WIDTH (cf.
)
④
END
POINT
⑥ To turn the GUARD function Off,
select the GUARD-OFF on the Menu
sheet.
START
POINT
END POINT (cf.
)
⑤
30 OPERATION
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4.15 RINGS
The range rings can be turned to on or off via this menu.
4.16 POSITION
Select this option to display the ship’s position (derived from a navaid input).
This function allows selection of ship’s position in latitude/longitude (LL), time
difference (TD) position, you may also display waypoint (WPT) as a LL posi-
tion in place of your own position data. This menu also removes this data from
display. To highlight the required sub-function, move the cursor to it with the
JOYSTICK, then press JOYSTICK to activate it.
4.17 WAYPOINT
If the radar is interfaced with a LORAN or GPS with the necessary data output,
a waypoint symbol can be made to appear on the radar screen by activating the
WAYPOINT function in the DISPLAY menu. Numeric data, showing the
waypoint’s bearing, range, and time-to-go appear at the bottom right corner on
the screen.
4.18 SELECTION OF DATA FORMATS
This function selects the units and formats for the SHM, EBL, CURSOR and
WAYPOINT data.
It can be displayed in degrees True (T) or magnetic (M) and is indicated by
these letters on screen. The Ship’s Head Marker is always displayed as zero
degrees.
4.19 TRAIL
This feature allows the operator to see the past history of target movement as an
after-glow, or trail behind moving targets. The “glow-time” of these “trails”
and - hence - the amount of display time which they occupy, can be set to
“short” or “long”.
OPERATION 31
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4.20 TARGET EXPANSION
Target expand mode can be set to “on” or “off”. When “on”, this function in-
creases the size of the displayed images to make small targets appear larger and
easier to view on screen. When active,“EXP” is highlighted in the upper left
area of the screen.
4.21 INTERFERENCE REJECTION
CAUTION
If you’ll watch the RADAR BEACON and the SART, set the pro-
cess as follows.
IR OFF
Interference Rejection (IR) mode can be set to “on” or “off”. The IR reduces
“noise” on the display caused by other radars. When active, the “IR” is high-
lighted at the upper left of the screen. If you are navigating in a port area ser-
viced by a RACON, you should turn off the IR mode in order to see the RA-
CON signals clearly.
4.22 DISPLAY MODE
Targets can be displayed in black on a white background, or vice versa.
4.23 PLANNED-TX MODE
The PLANNED-TX mode allows the operator to program the radar automati-
cally to transmit for a pre-determined length of time, followed by a stand-by
period.
This maintains a radar watch whilst reducing the power consumption experi-
enced during full transmit operation. In PLANNED-TX mode press the STBY/
OFF key and the radar will return to its normal operating mode.
32 OPERATION
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4.24 SETTING AUTO/MANUAL TUNING
The Radar 1500 MK2 can be tuned either automatically or manually. If
MANUAL TUNING is selected, a tuning bar indicator is displayed. AUTO
TUNE mode will automatically tune the radar for optimum reception whenever
the radar is turned on, even if ranges are changed.
4.25 In Case an Unusual Condition Occurs during Operation
If the operator encounters unusual conditions, such as:--
・The screen is disturbed.
・The machine accepts no key input.
While manipulating, initialize RADAR 1500 MK2 by following the steps given
below.
(a) Press the STBY/OFF and X-MIT/OFF keys simultaneously.
The RADAR 1500 MK2 is turned off.
(b) Press the EBL/VRM and STBY/OFF keys simultaneously.
All settings except the initial settings established through the “INITIAL
SET UP” menu are reset to their factory-set values.
OPERATION 33
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4.26 DISPLAY OF RADAR TRANSPONDER
SART (Search and Rescur Radar Transponder) is life preserving device ap-
proved by GMDSS which is used for locating survivors in the event of a disas-
ter or distress. SART operates in the 9 GHz frequency band. When it receives a
radar signal (interrogating radio wave) of 9 GHz transmitted by a rescue ship or
aircraft radar, SART transmits a series of respouse signals to the searchers to
indicate the distress position.
In order to see the SART or radar beacon mark on the radar screen.
① RANGE SCALE
② SEA
: Select 6 or 12 nm.
: Set to minimum.
③ TUNE
④ IR
: DETUNED to reduce the clutter.
: Set IR OFF.
SART Code
Position of SART
Position of the
Rescue Craft
Land
Other Ships
[EXAMPLE]
Attention
When above settings ① to ④ are made to display SART signals, objects around the own
ship will not appear on the radar screen, so perform thorough visual monitoring of the sea
area around the own ship to avoid any collision or stranding.
Further, when more than one radar systems are mounted, while using a 9 GHz band radar
for searching SART signals, be sure to use another radar as an ordinary radar to perform
monitoring of objects around the own ship to avoid any collision, check of the position of
the own ship to avoid any stranding, and so on.
Need to retune the set for normal operation on completeion.
34 OPERATION
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SECTION 5
MAINTENANCE
The purpose of this section is to provide instructions for the service technician.
The RADAR 1500 MK2 is designed to provide long periods of trouble free
operation. However, environmental and other factors may require this equip-
ment to be periodically serviced.
WARNING
This radar equipment contains high voltage. Adjustments re-
quire specialized service procedures and tools only available to
qualified service technicians. The layman should never remove
the radar unit cover, nor attempt to service this equipment. When
servicing this equipment, it is important that the technician com-
plies with all safety precautions set forth in this manual.
The high voltage can cause severe personal injury.
5.1 PREVENTIVE MAINTENANCE
Continuous satisfactory operation of the radar depends on how well it is treated.
The following maintenance tips will save you time and money and will help to
avoid equipment failure.
1. Always keep the equipment as clean as possible. Remove immediately dirt,
dust, or spray from the display and from the scanner from time to time.
These units are “water resistant”, but not “water proof”. Do not immerse.
2. During routine ship’s maintenance, inspect the radar system for the follow-
ing points:
(1) Check all hardware for tightness.
MAINTENANCE 35
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(2) Check for any evidence of corrosion in the scanner unit and display unit,
or their cables and connecotrs. Clean as reuired.
(3) Check that the cable connector is secure.
5.2 CLEANING (MONTHLY INTERVALS)
Wash the exterior of the scanner with fresh water, but do not immerse the unit.
A heavy deposit of dirt, or caked salt on the surface of the scanner may cause a
considerable drop in the radar performance. Clean the face of the display unit
with a clean, soft, lint-free cloth, slightly dampened with fresh water.
5.3 LCD FILTER SURFACE CLEANING
In time, the surface of the LCD FILTER (screen) may accumulate a film of
contaminants, which tend to dim the picture. A good glass cleaner and a soft
cloth or towel can be used to clean the LCD display, the keyboard and the
display cabinet.
5.4 FUSE
A fuse seldom blows without some cause. Even if a fuse is replaced and it does
not immediately blow again, it may still be necessary to make further checks on
its associated circuits. If necessary, replace the 5 A fuse (Normal-brow type) in
the power cable.
36 MAINTENANCE
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SECTION 6
AFTER-SALES SERVICE
To verify ownership and warranty registration, you should take a few minutes
to fill out your warranty registration card in the front of the manual. It is very
important that you take time to fill out this card.
The warranty registration card should be returned to the nearest JRC service
center immediately after your purchase, in order to receive full warranty ben-
efits.
Read the attached the warranty card. It contains important information on war-
ranty limitations.
AFTER-SALES SERVICE 37
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SECTION 7
SPECIFICATIONS
7.1 GENERAL
1. Maximum range:
2. Minimum range:
3. Range scales:
16 Nautical Miles
Less than 25 m on the 0.125 NM range
Range
(NM)
Number of
Rings
Range ring
Interval(NM)
0.125
0.25
0.5
2
2
2
3
4
6
6
6
6
4
0.0625
0.125
0.25
0.25
0.25
0.25
0.5
0.75
1.0
1.5
3.0
6.0
1.0
12.0
16.0
2.0
4.0
4. Range discriminations: Less than 25 m
5. Range ring accuracy: Better than ±0.9% of maximum range of
the scale in use, or 8 m, whichever is the
greater.
6. Bearing accuracy:
7. Display device:
± 1 degree
LCD: 115 × 86.4 mm (320 × 240 dots)
8. Environmental conditions:
Scanner unit
Temperature － 15℃ to ＋ 55℃
Humidity Up to 95% at 35℃
Display unit
Temperature － 10℃ to ＋ 50℃ (Except LCD)
0℃ to ＋ 50℃ (LCD)
Humidity
Up to 95% at 35℃
38 SPECIFICATIONS
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Note: LCD performance will be slightly deteriorated in response
speed and brightness during extreme low temperatures.
9. Input power:
10. Power consumption:
11. AVR:
10.2 V to 16 V
Approx. 30 W
Floating AVR system
7.2 SCANNER UNIT
1. Dimensions:
Diameter
450 mm
Height
227 mm
2. Mass:
Approx. 5 kg
Horizontal
Horizontal
Vertical
3. Polarization:
4. Beam width:
5.2°nominal
30°
5. Sidelobes:
6. Rotation:
Less than － 21 dB
Approx. 32 rpm
7. Transmitter frequency: 9445 ± 30 MHz
8. Peak power output:
9. Pulse length/PRF:
2 kW
0.08 µs/ 2250 Hz
(0.125, 0.25, 0.5, 0.75 NM)
0.3 µs/ 1200 Hz (1, 1.5 NM)
0.8 µs/ 600 Hz (3, 6, 12, 16 NM)
T-junction with diode Limiter
MIC front end
10. Duplexer:
11. Mixer:
12. IF amplifier:
Center frequency 60 MHz
Bandwidth
Less than 10 dB
Linear
3/10 MHz
13. Noise figure:
14. Characteristic:
7.3 DISPLAY UNIT
1. Dimensions:
2. Mass:
Width
187 mm
83 mm
183 mm
Depth
Height
Approx. 1.2 kg
SPECIFICATIONS 39
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3. Mounting:
4. Video:
Table, Overhead or Flush mount
4 levels quantitized
5. Tuning:
6. Bearing scale:
7. VRM:
Auto/ Manual
360°scale graduated at intervals of 5°
3 digit readout
8. EBL:
3 digit readout
9. Alarm:
Audible alarm with zone mark
1/4 radius below
10. Offset:
11. Timed TX:
Rotation period 10, 20 or 30 scans
Repetition period 3, 5, 10, 15 min.
English, French, Spanish,
Italian, Norweigian, German
VRM, EBL, Cursor with LL,
Interference rejection, Target expansion,
Target alarm, LL or TD readout, Waypoint
with LL, Offset, Timed TX, Target trail,
Auto tune
12. Language:
13. Features:
14. External input:
NAV-AID
NMEA0183 (RMA, RMB, RMC, GLL,
GTD, VTG, BWC sentence) NMEA0182
NMEA0183 (HDG, HDM, HDT or VHW
sentence)
Compass
40 SPECIFICATIONS
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7.36"
187mm
6.65"
169mm
CUT OUT HATCHED AREA
4-HOLES DRILL
4.5mm ( .177" ) DIA
6.33"
161mm
Fig.1 RADAR 1500 MK2 DISPLAY UNIT (NCD-3970A) FLUSH MOUNT TEMPLATE
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5-φ12mm
0.47"
141.42mm
5.57"
CABLE ACCESS
FORWARD
Fig.2 RADAR 1500 MK2 SCANNER UNIT (NKE-1063) RADOME TEMPLATE
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