Furuno Marine Radar Radar Detector User Manual

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The paper used in this manual
is elemental chlorine free.
FURUNO Authorized Distributor/Dealer
9-52 Ashihara-cho,
Nishinomiya 662-8580, JAPAN
Telephone :
0798-65-2111
Fax
0798-65-4200
:
All rights reserved.
Printed in Japan
FIRST EDITION : JAN. 1997
R4
Pub. No. OME-34410
( DAMI ) MODEL1832/1932/1942
: MAR. 14, 2006
*00080788702*
*00080788702*
*00080788702*
*OME34410R40*
*OME34410R40*
*OME34410R40*
RADIO FREQUENCY
RADIATION HAZARD
The antenna emits electromagnetic
radio frequency energy which can
can be harmful, particularly to your
eyes. Distances at which RF
radiation levels of 100W/m2 and
10W/m2 exist are shown below.
Distance to
100 W/m2 point
Nil
Distance to
10 W/m2 point
1.50m
COMPLIANCE WITH R&TTE DIRECTIVE 1999/5/EC
This radar complies with the R&TTE Directive 1999/5/EC. In accordance with Article 6-3 of
this directive, FURUNO intends to put this radar on the market of the following countries in
EU as well other markets.
Austria, Belgium, Cyprus, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Ireland, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Slovenia, Spain, Sweden, The
Netherlands, United Kingdom, Iceland, Norway
ii
FOREWORD
Congratulations on your choice of the
FURUNO MODEL 1832/1932/1942 Marine
Radar. We are confident you will see why the
FURUNO name has become synonymous with
quality and reliability.
For over 50 years FURUNO Electric Company
has enjoyed an enviable reputation for innovative and dependable marine electronics equipment. This dedication to excellence is furthered
by our extensive global network of agents and
dealers.
Your radar is designed and constructed to meet
the rigorous demands of the marine environment. However, no machine can perform its
intended function unless properly installed and
maintained. Please carefully read and follow
the recommended procedures for installation,
operation and maintenance.
While this unit can be installed by the purchaser,
any purchaser who has doubts about his or her
technical abilities may wish to have the unit
installed by a FURUNO representative or other
qualified technician. The importance of a
through installation can not be overemphasized.
We would appreciate hearing from you, the enduser, about whether we are achieving our purposes.
Features
Your radar has a large variety of functions, all
contained in a remarkably small cabinet.
The main features of the MODEL 1832/1932/
1942 are:
¡ Traditional FURUNO reliability and quality in a compact, lightweight and low-cost
radar.
¡ Durable brushless antenna motor.
¡ On-screen alphanumeric readout of all operational information.
¡ Standard features include EBL (Electronic
Bearing Line), VRM (Variable Range
Marker), Guard Alarm, Display Off Center,
and Echo Trail.
¡ Watchman feature periodically transmits the
radar to check for radar targets which may
be entering the alarm zone.
¡ Ship’s position in latitude and longitude and
Loran C Time Differences, range and bearing to a waypoint, and ship’s speed/ heading/course can be shown in the bottom text
area. (Requires a navigation aid which can
output such data in IEC 1162 format.)
¡ Zoom feature provided.
Thank you for considering and purchasing
FURUNO equipment.
iii
TABLE OF CONTENTS
FOREWORD ................................... iii
SPECIFICATIONS ........................... v
EQUIPMENT LIST ........................viii
CONFIGURATION OF
MODEL 1832/1932/1942 ............. x
1. PRINCIPLE OF OPERATION ...... 1
1.1 What is Radar? .................................... 1
1.2 How Ships Determined Position Before
Radar .................................................. 1
1.3 How Radar Determines Range ........... 1
1.4 How Radar Determines Bearing ......... 1
1.5 Radar Wave Speed and Antenna Rotation Speed ........................................... 1
1.6 The Radar Display .............................. 1
2. BASIC OPERATION .................... 3
2.1 Control Description ............................ 3
2.2 Display Indications and Markers ........ 4
2.3 Turning the Radar On/Off .................. 5
2.4 Transmitting ........................................ 5
2.5 Stand-by .............................................. 5
2.6 Selecting the Range ............................ 6
2.7 Adjusting Picture Brilliance ................ 6
2.8 Adjusting Receiver Sensitivity ........... 6
2.9 Adjusting the A/C SEA Control (reducing sea clutter) .................................... 6
2.10 Adjusting the A/C RAIN Control
(reducing rain clutter) ......................... 7
2.11 Erasing the Heading Line, North Mark
.......................................................... 8
2.12 Measuring the Range ........................ 8
2.13 Measuring the Bearing ...................... 9
2.14 Using the Offset EBL ....................... 9
2.15 Shifting (off centering) the Picture . 10
2.16 Zoom ............................................... 11
3. MENU OPERATION ................... 12
3.1 Basic Menu Operation ...................... 12
3.2 Selecting the Presentation Mode ...... 12
3.3 Magnifying Long Range Echoes (echo
stretch) .............................................. 13
3.4 Echo Trail.......................................... 13
3.5 Suppressing Radar Interference ........ 14
3.6 Selecting Pulsewidth ......................... 15
3.7 Guard Alarm ..................................... 15
3.8 Watchman ......................................... 16
3.9 Displaying Navigation Data ............. 17
3.10 OTHER MENU Description........... 18
3.11 Function Keys ................................. 19
3.12 Suppressing Noise .......................... 19
3.13 Adjusting Brilliance of Markers ..... 19
3.14 Outputting Target Position .............. 19
4. FALS ECHOES .......................... 20
4.1 Multiple Echoes ................................ 20
4.2 Side-lobe Echoes .............................. 20
4.3 Indirect Echoes ................................. 20
4.4 Blind and Shadow Sectors ................ 21
5. MAINTENANCE & TROUBLESHOOTING ................................ 22
5.1 Preventative Maintenance ................. 22
5.2 Replacing the Fuse ............................ 22
5.3 Troubleshooting ................................ 23
5.4 Self Test ............................................ 24
5.5 Life Expectancy of Magnetron ......... 24
6. INSTALLATION ......................... 25
6.1 Antenna Unit Installation .................. 25
6.2 Display Unit Installation ................... 30
6.3 Exchange of Fuse for 24/32V Power
Supply .............................................. 32
6.4 Checking the Installation .................. 32
6.5 Adjustments ...................................... 32
MENU TREE ............................. AP-1
iv
ARP-10 (OPTION) .................... AP-2
OUTLINE DRAWINGS .............. D-1
INTERCONNECTION DIAGRAMS..S-1
Declaration of Conformity
MODEL 1832
SPECIFICATIONS
ANTENNA UNIT
1. Radiator:
Printed array
2. Radiator length:
60 cm
3. Horizontal beamwidth: 3.9°
4. Vertical beamwidth:
20°
5. Sidelobe:
Within ± 20° of mainlobe; less than -18 dB
Outside ± 20° of mainlobe; less than -23 dB
6. Polarization:
Horizontal
7. Antenna rotation speed: 24 rpm
8. Wind resistance:
Relative wind speed 100 knots (51.5 m/s)
TRANSCEIVER MODULE
(contained in radome)
1. Transmitting tube:
E3571 or
MAF1421B
2. Frequency:
9410 MHz ±30 MHz
3. Peak output power:
4 kW nominal
4. Pulselength & pulse repetition rate:
0.08 µs, 2100 Hz (0.125, 0.25, 0.5, 0.75, 1.5)
0.3 µs, 1200 Hz (1.5, 2, 3)
0.8 µs, 600Hz (3, 4, 6, 8, 12, 16, 24, 36)
5. Warmup time:
1:30
6. Modulator:
FET switching
method
7. I.F.:
60 MHz
8. Tuning:
3Automatic or
manual
9. Receiver front end:
MIC (Microwave
IC)
10. Bandwidth:
Tx pulselength 0.3 µs and 0.08 µs: 25 MHz
Tx pulselength 0.8 µs: 3 MHz
11. Duplexer:
Circulator with diode
limiter
3. Range scale (nm):
Range, Range interval and no. of Rings:
0.125 (0.0625, 2), 0.25 (0.125, 4), 0.75
(0.25, 3), 1 (0.25, 4), 1.5 (0.5, 3), 2 (0.5, 4),
3 (1, 3), 4 (1, 4), 6 (2, 3), 8 (2, 4), 12 (3, 4),
16 (4, 4), 24 (6, 4), 36 (12, 3)
4. Bearing resolution:
4°
5. Bearing accuracy:
Within 1°
6. Range discrimination:
Better than 20 m
7. Range ring accuracy:
0.9 % or range in use or 8 m, whichever is
larger
8. Minimum range: Better than 25 m
9. Markers:
Heading line, Bearing scale, Range ring,
VRM 1/2, EBL 1/2, Tuning indicator,
Cursor, Alarm zone, North mark (heading
sensor input required)
10. Alphanumeric indication:
Range, Range ring interval, Pulselength (SP,
MP, LP), Display mode (HU, CU, NU, TM),
Interference rejection (IR1, IR2, IR3), VRM
(1,2), EBL (1, 2), Automatic A/C SEA (A/C
AUTO), Stand-by (ST-BY), Radar alarm:
G(IN)/G(OUT)/G(ACKN), Echo stretch
(ES1, ES2), Range to cursor, Bearing to
cursor, Echo trailing (TRAIL), Trail time,
Trail elapsed time, Navigation data (navigation input required), heading (HDG, heading
sensor input required)
11. Vibration:
Vibration
Total amplitude
5 to 12.5 Hz
± 1.6 mm
12 to 25 Hz
± 0.35 mm
25 to 50 Hz
± 0.10 mm
12. Temperature:
Antenna unit;
-25 °C to + 70 °C
Display unit;
-15 °C to + 55 °C
13. Humidity:
Relative humidity 93% or less at + 40°C
14. Waterproofing:
Antenna unit;
IPX6
Display unit;
IPX5
15. Power supply & power consumption:
12-32 VDC (10.2 V to 41.6 VDC)
50W
16. Protection feature:
Protection against reverse polarity, overvoltage, overcurrent, and internal fault
17. Compass safe distance:
DISPLAY UNIT
1. Indication system:
2. Display:
PPI raster scan
10-inch rectangular
monochrome CRT
Display unit
Antenna unit
Standard compass Steering compass
0.75 m
0.6 m
0.9 m
0.7 m
v
MODEL 1932
SPECIFICATIONS
MODEL 1942
SPECIFICATIONS
ANTENNA UNIT
ANTENNA UNIT
1. Radiator:
Slotted waveguide
array
100 cm
3.9°
27°
1. Radiator:
Slotted waveguide
array
120 cm
1.9°
22°
2. Radiator length:
3. Horizontal beamwidth:
4. Vertical beamwidth:
5. Sidelobe:
Within ± 20° of mainlobe; less than -24 dB
Outside ± 20° of mainlobe; less than -30 dB
6. Polarization:
Horizontal
7. Antenna rotation speed: 24 rpm
8. Wind resistance:
Relative wind speed 100 knots (51.5 m/s)
2. Radiator length:
3. Horizontal beamwidth:
4. Vertical beamwidth:
5. Sidelobe:
Within ± 20° of mainlobe; less than -24 dB
Outside ± 20° of mainlobe; less than -30 dB
6. Polarization:
Horizontal
7. Antenna rotation speed: 24 rpm
8. Wind resistance:
Relative wind speed 100 knots (51.5 m/s)
TRANSCEIVER MODULE
(contained in antenna)
TRANSCEIVER MODULE
(contained in antenna)
1. Pulselength & pulse repetition rate:
1. Transmitting tube:
0.08 µs, 2100 Hz (0.125, 0.25, 0.5, 0.75, 1.5)
0.3 µs, 1200 Hz (1.5, 2, 3)
0.8 µs, 600Hz (3, 4, 6, 8, 12, 16, 24, 36, 48)
2. Others:
See MODEL 1832.
DISPLAY UNIT
1. Range scale (nm):
Range, Range interval and no. of Rings:
0.125 (0.0625, 2), 0.25 (0.125, 4), 0.75
(0.25, 3), 1 (0.25, 4), 1.5 (0.5, 3), 2 (0.5, 4),
3 (1, 3), 4 (1, 4), 6 (2, 3), 8 (2, 4), 12 (3, 4),
16 (4, 4), 24 (6, 4), 36 (12, 3), 48 (12, 4)
2. Compass safe distance:
Display unit
Antenna unit
3. Others:
Standard compass Steering compass
0.75 m
0.6 m
1.1 m
0.8 m
See MODEL 1832.
MG5389 or
MAF1422B
2. Peak output power:
6 kW nominal
3. Pulselength & pulse repetition rate:
0.08 µs, 2100 Hz (0.125, 0.25, 0.5, 0.75, 1.5)
0.3 µs, 1200 Hz (1.5, 2, 3)
0.8 µs, 600Hz (3, 4, 6, 8, 12, 16, 24, 36, 48, 64)
4. Bandwidth:
Tx pulselength 0.3 µs and 0.08 µs: 25 MHz
Tx pulselength 0.8 µs: 5 MHz
5. Others:
See MODEL 1832.
DISPLAY UNIT
1. Range scale (nm):
Range, Range interval and no. of Rings:
0.125 (0.0625, 2), 0.25 (0.125, 4), 0.75
(0.25, 3), 1 (0.25, 4), 1.5 (0.5, 3), 2 (0.5, 4),
3 (1, 3), 4 (1, 4), 6 (2, 3), 8 (2, 4), 12 (3, 4),
16 (4, 4), 24 (6, 4), 36 (12, 3), 48 (12, 4), 64
(16, 4)
2. Compass safe distance:
Display unit
Antenna unit
Standard compass Steering compass
0.75 m
0.6 m
1.0 m
0.74 m
3. Power supply & power comsumption:
12-32 VDC (10.2 V to 41.6 VDC)
56W
4. Others:
See MODEL 1832.
vi
INTERFACE IEC 1162
(NMEA0183)
ARPA FUNCTION
(OPTION)
(Input)
1. Internal Board
ARP-10
2. Acquisition
Instant selection of auto or manual acquisition in 0.2 - 16 nm, relative speed 100kt.
3. Tracking
Automatic tracking of up to 10 acquired
targets betwen 0.1 to 16 nm.
4. Prediction of target motion
True or relative vectors, time scaled.
5. Past position
10 past positions of tracked targets.
6. Alarm
Lost target. CPA/
TCPA
7. Automatic tracking range
0.1 - 16 nm
8. Target information (one target selected)
¡Distance and bearing from own ship to
target
¡Moving direction and speed
¡CPA (estimated Closest Point of Approach)
and TCPA (estimated Time to CPA)
9. Vector length
30 sec. - 30 min.
10. Plotting interval
15 sec. - 6 min.
Own ship's position:
GGA>RMA>RMC>GLL
Speed:
RMA>RMC>VTG>VHW
Heading (True):
HDT>HDG*>HDM*>VHW>VHW*
Heading (Magnetic):
HDM>HDG*>HDT*>VHW>VHW*
Course (True):
RMA>RMC>VTG
Course (Magnetic):
VTG>RMA*>RMC*
Waypoint (Range, Bearing): RMB>BWC>BWR
Loran time difference:
RMA>GLC>GTD
Water depth:
DPT>DBT
Water temperature:
MDA>MTW
XTE:
RMB>XTE>APB
*: Calculated value based Magnetic variation.
(Output)
TLL: On using "TLL" Key.
RSD: An interval of four seconds.
TTM: ARP-10 (Option)
vii
EQUIPMENT LIST
Complete Set
MODEL 1832
Name
1 Antenna Unit
2 Display Unit
Installation Materials
(select one)
3
4 Accessaries
5 Spare Parts
Type
RSB-0071-057
RDP-118
CP03-16900
CP03-16910
CP03-16920
CP03-16930
FP03-06400
SP03-12200
Code No.
Qty
1
1
Remarks
000-086-843
000-086-844
000-086-845
000-086-846
000-086-872
000-086-965
sig. cable assy. 10 m
sig. cable assy. 15 m
1 set
sig. cable assy. 20 m
sig. cable assy. 30 m
1 set
Code No.
Qty
Remarks
1 For MODEL1932
1 For MODEL1942
1
sig. cable assy. 10 m
sig. cable assy. 15 m
1 set
sig. cable assy. 20 m
sig. cable assy. 30 m
1 set
1 set
1 set
MODEL 1932/1942
Name
1
2
3
4
5
Type
RSB-0061-054A
Antenna Unit
RSB-0062-055A
Display Unit
RDP-118
Installation Materials CP03-17000
(select one)
CP03-17010
CP03-17020
CP03-17030
Accessaries
FP03-06400
Spare Parts
SP03-12200
000-086-848
000-086-849
000-086-850
000-086-851
000-086-872
000-086-965
Optional Equipment
Name
1 ARP Board
Rectifier
Type
RU-3423
03-121-1500
OP03-145
OP03-92
OP03-21
MJ-A6SPF0003-050
MJ-A6SPF0009-100
Code No.
000-086-852
000-013-484
000-013-485
000-013-486
000-013-487
000-030-443
008-439-000
008-476-060
008-445-070
000-030-097
000-117-603
000-125-236
MJ-A6SPF0007-100
000-125-237
MJ-A6SPF00012-100
000-133-817
MJ-A6SPF00012-050
000-134-424
MJ-B24LPF0006-005
000-140-438
ARP-10
PR-62
2
3
4
5
6
7
Magnifying Lens
Flush Mount Kit
Mounting Bracket (1)
External Buzzer
Cable Assy.
Qty
1
1
1
1
1
1
1
Remarks
1832, 100V AC
1832, 110V AC
1832, 220V AC
1832, 230V AC
1932/1942, AC
For MODEL1832
*See note 1.
1
*See note 2.
Note 1) Even though the display unit meets waterproof standard IPX-5, the connection of external buzzer, radar
plotter and/or remote display can affect waterproofness. Watertight integrity cannot be guaranteed. When these
modification has been done, the display unit should not be mounted where exposed.
Note 2) Conversion from MCP connector (square type) to MJ connector (circular type).
viii
Installation Materials
CP03-169xx (Model 1832)
Name
Type
Code No.
1 Signal Cable 10m
MJ-B24LPF0002-100 000-138-972
Qty
Signal Cable 15m
MJ-B24LPF0002-150 000-138-970
Signal Cable 20m
MJ-B24LPF0002-200 000-138-974
Signal Cable 30m
MJ-B24LPF0002-300
000-138-973
2 Power Cable
03S9332
000-138-928 1 set
3 Slotted Head
Hex Bolt
4 Flat Washer
M10 x 25 SUS304
000-862-308
M10 SUS304
000-864-131
4
5 Spring Washer
M10 SUS304
000-864-261
4
6 EMC core
E04SS251512
000-144-673
1
CP03-170xx (Model 1932/1942)
Name
Type
1 Signal Cable 10m
MJ-B24LPF0002-100
Code No.
000-138-972
Remarks
Select one.
Connector fitted.
1
4
Qty
Signal Cable 15m
MJ-B24LPF0002-150
000-138-970
Signal Cable 20m
MJ-B24LPF0002-200
000-138-974
Signal Cable 30m
MJ-B24LPF0002-300
000-138-973
2 Power Cable
03S9332
000-138-928
1
3 Seal Washer
CW1053DX
000-850-021
4
4 Hex Bolt
M12 x 60 SUS304
000-862-191
4
5 Hex Nut
M12 SUS304
000-863-112
4
6 Flat Washer
M12 SUS304
000-864-132
4
7 Spring Washer
M12 SUS304
000-864-263
4
8 Slotted Pin
10 x 45 SUS
000-866-390
2
Remarks
Select one.
Connector fitted.
1
Spare Parts (SP03-12200)
Name
Type
Code No.
Qty
1 Fuse
FGBO-A5A AC125V 000-549-064
2
Remarks
For 24/32 VDC
power supply
2 Fuse
FGBO 10A AC125V
000-549-065
2
For 12 VDC power
supply
3 Label (5A )
03-129-1512-0
100-248-780
1
For 24/32 VDC
Code No.
000-802-084
008-479-320
008-479-310
008-441-400
Qty
5
2
1
1
Accessories (FP03-06400)
1
2
3
4
Name
Tapping Screw
Knob
Hanger
Hood Assy.
Type
6x20 SUS304
FP03-06402
FP03-06401
FP03-04810
Remarks
ix
CONFIGURATION OF
MODEL 1832/1932/1942
Antenna Unit
(1932/1942)
(1832)
NAV
IEC 1162* (In/Out)
Video Sounder
Gyro
IEC 1162* (In)
Gyro Converter
AD-100
*Equivalent to NMEA 0183
Remote Display
FMD-811
Display Unit
RDP-118
Auto Plotter
ARP-10
12 VDC: 5A
24 VDC: 10A
: Option
: Local Supply
12-32 VDC
External Alarm
Buzzer OP03-21
Rectifier
PR-62(1832),
RU-3423(1932/1942)
115/230 VAC
Note: Even though the display unit meets waterproof standard IPX-5, the connection of external
buzzer, radar plotter and/or remote display can affect waterproofness. Watertight integrity cannot
be guaranteed. When these modification has been done, the display unit should not be mounted
where exposed.
x
1. PRINCIPLE OF OPERATION
1.1 What is Radar?
The term “RADAR” is an acronym meaning
RAdio Detection And Ranging. Although the
basic principles of radar were developed during World War II, echoes as an aid to navigation is not a new development.
1.2 How Ships Determined
Position Before Radar
Before the invention of radar, when running in
fog near a rugged shoreline, ships would sound
a short blast on their whistles, fire a shot, or
strike a bell. The time between the origination
of the sound and the returning of the echo indicated how far the ship was from the cliffs or the
shore. The direction from which the echo was
heard indicated the relative bearing of the shore.
1.3 How Radar Determines
Range
Radar determines the distance to the target by
calculating the time difference between the
transmission of a radar signal and the reception
of the reflected echo. It is a known fact that radar waves travel at a nearly constant speed of
162,000 nautical miles per second. Therefore
the time required for a transmitted signal to
travel to the target and return as an echo to the
source is a measure of the distance to the target. Note that the echo makes a complete round
trip, but only half the time of travel is needed to
determine the one-way distance to the target.
This radar automatically takes this into account
in making the range calculation.
1.4 How Radar Determines
Bearing
The bearing to a target found by the radar is
determined by the direction in which the radar
scanner antenna is pointing when it emits an
electronic pulse and then receives a returning
echo. Each time the scanner rotates pulses are
transmitted in the full 360 degree circle, each
pulse at a slightly different bearing from the
previous one. Therefore, if one knows the direction in which the signal is sent out, one knows
the direction from which the echo must return.
1.5 Radar Wave Speed and
Antenna Rotation Speed
Note that the speed of the radar waves out to
the target and back again as echoes is extremely
fast compared to the speed of rotation of the
antenna. By the time radar echoes have returned
to the scanner, the amount of scanner rotation
after initial transmission of the radar pulse is
extremely small.
1.6 The Radar Display
The range and bearing of a target is displayed
on what is called a Plan Position Indicator (PPI).
This display is essentially a polar diagram, with
the transmitting ship’s position at the center.
Images of target echoes are received and displayed at their relative bearings, and at their
distance from the PPI center.
With a continuous display of the images of targets, the motion of the transmitting ship is also
displayed.
1
Heading line
Targets
A
D
A
B
D
B
C
C
Own ship
in center
Own ship
(radar)
(A) Bird's eye view of situation
(B) Radar picture of (A)
Figure 1-1 How radar works
2
Range and bearing
of a target, relative
to own ship, are
readable on the PPI.
2. BASIC OPERATION
2.1 Control Description
Omnipad
Shifts cursor, VRM and EBL;
select items and options on
menu.
Brief press:
Displays the data of target
selected with the cursor.
Long press:
Terminates plotting of the target
selected with the cursor.
Opens/closes menus.
CANCEL
ACQ
ENTER
Selects
EBL1/EBL2/VRM1/VRM2.
MENU
GUARD
SELECT
Control:
Adjusts sensitivity.
Switch:
Temporarily erases heading
line (and north mark if
displayed).
EBL/VRM
CONTROL
GAIN
TLL
Control:
Reduces sea clutter.
Switch*:
(Long press) Shifts your vessel’s
position to cursor location.
(Brief press) Doubles size of
area between your vessel and
location selected by cursor.
Control:
Reduces rain clutter.
Switch*:
Displaces the EBL origin.
Sets guard zone area.
Selects radar range.
RANGE
EBL/VRM
SELECT
(1) Acquires the target selected
with the ominipad.
(2) Registers selection on
menus.
Enables/erases
EBL1/EBL2/EBL3/EBL4.
Outputs target position data.
HM-OFF
Automatically reduces sea and
rain clutters.
A/C SEA
A/C AUTO
F1
BRILL
Adjusts display brilliance.
ST BY
TX
Sets radar in stand-by;
transmits radar pulse.
POWER
Turns power on/off.
A/C RAIN
F2
Lights when the economy mode
is on.
*Default switch function.
Figure 2-1 Control panel
3
2.2 Display Indication and Markers
Tuning indicator (P.6)
Echo trail elapsed time (P.13)
Heading (requires heading data)
Heading line (P.8)
Echo trail time (P.13)
Guard Zone (P.15)
Range (P.6)
Range ring interval (P.6)
Pulselength (P.6)
Display mode (P.12)
. 125NM
. 0625
HDG 234.5°
TRAIL
25 : 38
SP
HU
AUTO
30M
G (OUT)
ZOOM
ES1
OFFCENTER
Zoom (P.11)
Echo Stretch (P.13)
Off center (P.10)
Cursor (P.8, 9)
EBL2 (P.9)
Guard zone area (P.15)
EBL1 (P.9)
Range ring (P.8)
VRM1 (P.8)
VRM2 (P.8)
North mark (P.8)
A/C AUTO (P.7)
EBL1 bearing (P.9)
EBL2 bearing (P.9)
A/C
AUTO
EBL
345.6° R
23.0° R
13.5 ° R
0.142NM
IR2
VRM
0.048NM
0.100NM
Interference rejector (P.14)
Cursor bearing (P.9)
Cursor range (P.8)
Figure 2-2 Display indications
4
VRM1 range (P.8)
VRM2 range (P.8)
2.3 Turning the Radar On/Off
2.5 Stand-by
Press the [POWER] key to turn the radar on or
off.
The control panel lights and a timer displays
the time remaining for warm up of the magnetron (the device which produces radar pulses),
counting down from 1:30 to 0:01.
When you won’t be using the radar for an extended period, but you want to keep it in a state
of readiness, place it in stand-by by pressing
the [STBY TX] key. The display shows
“STBY,” navigation data, or goes into the
economy mode depending on menu setting.
(More on menu operation later.)
2.4 Transmitting
Economy mode
After the power is turned on and the magnetron
has warmed up, STBY (Stand-By) appears at
the screen center. This means the radar is now
fully operational. In stand-by the radar is available for use at anytime - but no radar waves are
being transmitted.
The CRT can be set to automatically turn itself
off when in stand-by, to reduce power consumption. This feature is called the “economy mode.”
Power consumption in the economy mode is 28
W. When the economy mode is on, the lamp
next to the [POWER] key lights.
Press the [STBY TX] key to transmit.
Navigation data display during
stand-by
When transmitting, any echoes from targets
appear on the display. This radar displays echoes in eight tones of green according to echo
strength.
If a navigation aid inputs navigation data to this
radar, navigation data can be displayed during
stand-by. You can turn the navigation data display on/off through the menu. Figure 2-3 shows
a typical navigation data display during standby.
SPEED
Speed
Depth
DEPTH
TRIP
10.5
kt
125
m
Time-to-go to Stand-by
ST-BY
000.3 nm
TEMPERATURE
+17.3
Trip distance since power on
°C
E
To Waypoint
bearing Heading
HDG
092.5°
Heading
Course
CRS 180.0°M
Time-to-go to
TO Waypoint
WPT
BRG
RNG
N
Bearing TO Waypoint
TTG
01:08
45.0° M
12.0NM
S
OWN SHIP
LAT 30°00.00N
LON 135°00.00E
Range to TO Waypoint
TD
Ship's position in
latitude and longitude
and Loran TDs
36378.1
59096.4
XTE
R 0.3NM
W
L XTE
1.0
0.5
XTE
0.5
R
Cross Track Error
Mark " " shows
direction and amount
of error.
1.0
Figure 2-3 Typical navigation data display
during stand-by
5
Note 1: Availability of a particular display item
depends on incoming data.
Note 2: When Range to Waypoint reaches 0.1
nm, the WPT mark jumps to dead
ahead even though a difference may
exist between heading and BRG to
WPT.
Note 3: When cross track error exceeds 1 nm
on either side, the XTE mark starts
blinking.
2.6 Selecting the Range
The range selected automatically determines the
range ring interval, the number of range rings,
pulselength and pulse repetition rate, for optimal detection capability in short to long ranges.
You can select which ranges and pulselength
(for 1.5 and 3 mile ranges) to use through the
menu. The range, range ring interval and
pulselength appear at the top left-hand corner
of the display.
To select a range;
Press the [- RANGE +] key. The range and range
ring interval appear at the top left corner on the
display.
Tips for selecting the range
¡ When navigating in or around crowded harbors, select a short range to watch for possible collision situations.
¡ If you select a lower range while on open
water, increase the range occasionally to
watch for vessels that may be heading your
way.
2.7 Adjusting Picture Brilliance
The [BRILL] key adjusts the brilliance of the
radar picture in sixteen levels.
Press the [BRILL] key to set the brilliance level.
The current level momentarily appears on the
screen.
6
2.8 Adjusting Receiver Sensitivity
The [GAIN] control adjusts the sensitivity of
the receiver. It works in precisely the same
manner as the volume control of a broadcast
receiver, amplifying the signals received.
The proper setting is such that the background
noise is just visible on the screen. If you set up
for too little sensitivity, weak echoes may be
missed. On the other hand excessive sensitivity
yields too much background noise; strong targets may be missed because of the poor contrast between desired echoes and the
background noise on the display.
To adjust receiver sensitivity, transmit on long
range, and adjust the [GAIN] control so background noise is just visible on the screen.
2.9 Adjusting the A/C SEA
Control (reducing sea
clutter)
Echoes from waves can be troublesome, covering the central part of the display with random
signals known as “sea clutter.” The higher the
waves, and the higher the scanner above the
water, the further the clutter will extend. Sea
clutter appears on the display as many small
echoes which might affect radar performance.
(See the left-hand figure in Figure 2-4.) When
sea clutter masks the picture, adjust the A/C SEA
control to reduce the clutter.
How the A/C SEA control works
The [A/C SEA] control reduces the amplification of echoes at short ranges (where clutter is
the greatest) and progressively increases amplification as the range increases, so amplification will be normal at those ranges where there
is no sea clutter.
Adjusting the A/C SEA control
The proper setting of the A/C SEA should be
such that the clutter is broken up into small dots,
and small targets become distinguishable.
2.10 Adjusting the A/C RAIN
Control (reducing rain
clutter)
If the control is set too low, targets will be hidden in the clutter, while if it is set too high, both
sea clutter and targets will disappear from the
display. In most cases adjust the control until
clutter has disappeared to leeward, but a little
is still visible windward.
The vertical beamwidth of the antenna is designed to see surface targets even when the ship
is rolling. However, by this design the unit will
also detect rain clutter (rain, snow, hail, etc.) in
the same manner as normal targets. Figure 2-5
shows the appearance of rain clutter on the display.
1. Confirm that the sensitivity is properly adjusted, and then transmit on short range.
Adjusting A/C RAIN
2. Adjust the [A/C SEA] control so small targets are distinguishable but some clutter remains on the display.
When rain clutter masks echoes, adjust the [A/
C RAIN] control. This control splits up these
unwanted echoes into a speckled pattern, making recognition of solid targets easier.
Sea clutter at
display center
A/C SEA control adjusted;
sea clutter suppressed.
Figure 2-4 How to adjust the A/C SEA control
Appearance of
rain clutter
A/C RAIN control adjusted;
rain clutter suppressed.
Figure 2-5 Effect of A/C RAIN
Tip for adjusting the A/C SEA
A common mistake is to over-adjust the circuit
so all the clutter is removed. As an example set
up for maximum A/C SEA. You will see how
the center of the display becomes dark. This
dark zone can be dangerous (targets may be
missed), especially if the sensitivity is not properly adjusted. Always leave a little clutter visible on the display to be sure weak echoes will
not be suppressed. If there is no clutter visible
on the display, turn off the circuit.
Note: In addition to reducing clutter, the [A/C
RAIN] control can be used in fine weather
to clarify the picture when navigating in
confined waters. However, with the circuit activated the receiver is less sensitive. Therefore, turn off the circuit when
its function is not required.
Automatic adjustments of A/C SEA
and A/C RAIN
Push the [A/C AUTO] key. “A/C AUTO” appears at the bottom left-hand corner of the display when the A/C AUTO circuit is on. You can
fine tune by adjusting the [A/C SEA], [A/C
RAIN] and [GAIN] controls.
7
2.11 Erasing the Heading Line,
North Mark
The heading line or north mark (available with
gyrocompass connection) may occasionally
mask a target. To view the target, you can temporarily erase the heading line and north mark
by pressing and holding down the [GAIN (HM
OFF)] control. Release the control to re-display
the marks.
Heading
line
North mark
Figure 2-6 Heading line and north mark
VRM
5.3°NM
12.5°NM
EBL
345.6°R
23.0°R
Figure 2-7 Display bottom, showing location
of EBL and VRM readouts
2. Press the [EBL/VRM CONTROL] key to
enable control of the VRM by the omnipad.
3. Operate the omnipad to place the outside
edge of the VRM on the inside edge of the
target.
4. Check the VRM readout at the bottom righthand corner of the display to find the range
to the target.
5. To anchor the VRM, press the [EBL/VRM
CONTROL] key.
To erase the VRM, press and hold down the
[EBL/VRM CONTROL] key about two seconds.
2.12 Measuring the Range
Range
You can measure the range to a target three
ways: by the range rings, by the cursor, and by
the VRM (Variable Range Marker).
Range ring
interval
6.0 NM
2.0
Target
Cursor
VRM1
By range ring
Count the number of rings between the center
of the display and the target. Check the range
ring interval and judge the distance of the echo
from the inner edge of the nearest ring.
By cursor
Operate the omnipad to place the cursor intersection on the inside edge of the target echo,
The range to the target, as well as the bearing,
appears at the bottom of the display.
By VRM
1. Press the [EBL/VRM SELECT] key to circumscribe a VRM readout (at the bottom
right-hand corner). Each press of the key
selects the readout of EBL1, EBL2, VRM1
or VRM2 in that order.
8
VRM2
Cursor range
4.0 NM
VRM
4.0 NM
3.0 NM
VRM1
range
VRM2
range
Figure 2-8 Measuring range by the cursor,
range rings and VRM
Note: You can display the range readout of the
VRM and cursor in nautical miles, statute miles
or kilometers. For details see the next chapter.
2.13 Measuring the Bearing
There are two ways to measure the bearing to a
target: by the cursor, and by the EBL (Electronic
Bearing Line).
Note: The bearing readout for the EBL and the
cursor can be displayed in relative or true
bearing (true bearing requires heading
sensor input). For north up and course
up display modes the bearing reference
is always true. For details see the next
chapter.
By cursor
Operate the omnipad to bisect the target with
the cursor intersection. The bearing to the target appears at the bottom of the display.
By EBL
1. Press the [EBL/VRM SELECT] key to circumscribe an EBL readout (at the bottom
left-hand corner). Each press of the key selects the readout of EBL1, EBL2, VRM1 or
VRM2 in that order.
2. Press the [EBL/VRM CONTROL] key to
enable control of the omnipad.
Tips for measuring bearing
¡ Bearing measurements of smaller targets are
more accurate; the center of larger target pips
is not as easily identified.
¡ Bearings of stationary or slower moving targets are more accurate than bearings of faster
moving targets.
¡ To minimize bearing errors keep echoes in
the outer half of the picture by changing the
range scale; angular difference becomes difficult to resolve as a target approaches the
center of the display.
3. Operate the omnipad to bisect the target with
the EBL.
2.14 Using the Offset EBL
4. Check the EBL readout at the bottom lefthand corner of the display to find the bearing to the target.
The offset EBL provides two functions: predict
collision course of radar target and measure the
range and the bearing between two targets.
5. To anchor the EBL, press the [EBL/VRM
CONTROL] key.
Predicting collision course
To erase the EBL and its readout, press and hold
down the [EBL/VRM CONTROL] key about
two seconds.
1. Press the omnipad to place the cursor on the
center of the target.
6.0 NM
2.0
Cursor
3. Select EBL OFFSET on the menu and press
the [ACQ/ENTER] key.
EBL1
4. Press the [EBL/VRM CONTROL] key.
Target
EBL2
EBL1 bearing
EBL1 bearing
EBL
40.0° R
135.0° R 40.0°R 4.0 NM
2. Press the [EBL/VRM SELECT] key to
choose EBL1 readout and then press the
[EBL/VRM CONTROL] key.
Cursor
Bearing
5. Operate EBL1 so it passes through the center of the target.
If the target tracks along the EBL towards the
center of the display (your vessel’s position),
the target may be on a collision course.
To cancel, select EBL OFFSET and press the
[ACQ/ENTER] key.
Figure 2-9 How to measure bearing by EBL
and cursor
9
EBL1
6.0 NM
2.0
B
EBL1 origin
(initial position
of target)
VRM1
Target moved
here.
EBL1
bearing
VRM1
A
Offset EBL
(EBL1)
EBL
70.0° R
VRM
6.0 NM
VRM1
range
EBL1
bearing
Figure 2-10 Predicting collision course by
using the offset EBL
Measuring range and bearing between
two targets
The procedure which follows shows how to
measure the range and bearing between target
“A” and target “B” in Figure 2-11.
1. Press the omnipad to place EBL1’s origin
(cursor) on the center of target “A”.
70.0° R
VRM
4.5 NM
VRM1
range
Figure 2-11 Measuring the range and bearing
between two targets by using the offset EBL
2.15 Shifting (off centering) the
Picture
Your vessel’s position can be shifted up to 75%
of the range in use to view the situation around
your vessel without changing the range or size
of targets.
2. Press the [EBL/VRM SELECT] key to
choose EBL1 readout and then press the
[EBL/VRM CONTROL] key.
1. Press the omnipad to set cursor where desired.
3. Select EBL OFFSET on the menu and press
the [ACQ/ENTER] key. EBL1’s origin shifts
to cursor.
2. Press the [F1 (A/C SEA)] control if its function is set for SHIFT (default setting), or select SHIFT on the menu. OFFCENTER
appears at the top right corner of the display
when the picture is shifted.
4. Press the [EBL/VRM CONTROL] key.
5. Press the omnipad to bisect target “B” with
EBL1. Check the EBL1 readout to find the
bearing between target “A” and target “B”.
6. Press the [EBL/VRM SELECT] key to
choose VRM1 readout. Press the omnipad
to place the outside edge of VRM1 on the
inside edge of target “B.” Check the VRM1
readout to find the range between target “A”
and target “B”.
7. To cancel, select EBL OFFSET on the menu
and press the [ACQ/ENTER] key.
Cursor
1 Place cursor
where desired.
Cursor
2 Press SHIFT ZOOM
key to off center display.
Figure 2-12 Shifting the picture
Cancelling shifted picture
Press the [F1 (A/C SEA)] control again.
10
2.16 Zoom
The zoom feature allows you to double the size
of the area between your vessel and any location within the current range to take a closer
look at an area of interest.
1. Select location with the cursor.
2. Press and hold down the [F1 (A/C SEA)]
control about two seconds if its function is
set for ZOOM (default setting), or select
ZOOM on the menu. Zoom appears at the
top right corner when the ZOOM function is
on.
Cursor
Cursor
1 Place cursor
where desired.
2 Press [F1] to zoom.
Figure 2-13 Zoom function
Note 1: Zoom is cancelled when range or presentation mode is changed.
Cancelling zoom
Press the [F1 (A/C SEA)] control again.
11
3. MENU OPERATION
3.1
Basic Menu Operation
The menu mostly contains less-often used
functions which once preset do not require
regular adjustment. To open or close the menu,
press the [MENU] key. You can select items
on the menu with the omnipad. The complete
menu appears on page AP-1.
1. Press the [MENU] key to display the main
menu.
SSel by omnipad & press ENT.S
RINGS
MODE
EBL
OFFSET
SHIFT
DISP
DATA
Change brill
from 3 to max.
ZOOM
ECHO
TRAIL
ECHO
STRTCH
ARP-10
MENU
OTHER
MENU
Figure 3-1 Main menu
2. Press the omnipad to select the item. For
example, select RINGS. A message appears
at the bottom of the menu window.
3. Press the [ACQ/ENTER] key to select setting. Each time this key is pressed,
the message changes. For the RINGS
menu, the message sequence is as shown
below.
3.2
Selecting the Presentation
Mode
This radar provides four presentation modes:
head-up, course-up, north-up and true motion.
1. Press the [MENU] key.
2. Operate the omnipad to select “MODE”.
3. Press the [ACQ/ENTER] key.
With heading sensor connection the display
and the display mode indication at the top lefthand corner of the display change in the sequence of HU (heading up), CU (course up),
NU (north up) and TM (true motion) when
the [ACQ/ENTER] key is pressed. If there is
no heading sensor connection, the display
mode is always HU.
4. Press the [MENU] key to close the menu.
Note: The radar begins operation with last selected display mode (except course up) whenever the unit is turned on. Note however that
head up is selected when course up was the
last used mode.
Head up
The picture is oriented so the heading line is
at the top of the display. This mode is useful
for navigation in congested waters.
Course up
Change brill from Off to 1.
Change brill from 1 to 2.
The course up mode shows ship’s heading by
the heading line, at the top of the display. To
get heading desired, steer vessel in direction
desired, and then show “CU” at the top lefthand corner of the display.
Change brill from 2 to 3.
North up
Change brill from 3 to max.
Change brill from max to Off.
Figure 3-2 Messages for RINGS menu
4. Press the [MENU] key to close the menu.
12
North is at the top of the display and the heading line moves with ship’s heading. This mode
is useful for determining ship’s position and
as a navigation monitor on a nautical chart.
The picture is stabilized against yaw of vessel, thereby reducing of target echoes.
True motion
3.4 Echo Trail
True motion displays own ship and moving
objects in their true motion.
3.3
Magnifying Long Range
Echoes (echo stretch)
You can show the movement of all radar targets relative to your vessel in afterglow. This
function is useful for alerting you to possible
collision situations.
Starting echo trail
Normally, the reflected echoes from long
range targets appear on the display as weaker
and smaller blips even though they are compensated by the radar’s internal circuitry. The
echo stretch function magnifies these small
blips in all ranges. Two types of echo stretch
are available: ES1 which stretches echoes in
bearing direction and ES2 which stretches
them in both range and bearing directions.
1. Press the [MENU] key to open the menu.
2. Select “ECHO TRAIL” by the omnipad.
3. Select “ACTIVATE” by pressing the
[ACQ/ENTER] key.
To turn the echo stretch on or off;
1. Press the [MENU] key to open the menu.
2. Select “ES”.
3. Each press the [ACQ/ENTER] key changes
the echo stretch function in the sequence
of ES1, ES2 and OFF. ES1 or ES2 appears
at the top right-hand corner of the display
when echo stretch is on.
Bearing
direction
Bearing
direction
Figure 3-4 How the echo trail feature works
TRAIL, the echo trail time selected (on
“OTHER MENU”) and elapsed time appear
at the top right-hand corner of the display.
Then, afterglow starts extending from all targets.
Note: Trails are restarted when range or mode
is changed or zoom or shift is turned on.
Range
direction
Echo stretch 1
Echo stretch 2
Figure 3-3 Echo stretch
Note: This function magnifies not only targets but also sea clutter and radar interference.
For this reason be sure the controls for adjustment of sea clutter and radar interference
are properly adjusted before activating the
echo stretch.
Note: ES2 is not available on Short Range.
Fixed time trail
1. When the elapsed time clock counts up to
the trail time selected, the elapsed time display freezes.
2. The oldest portions of trails are erased so
only the latest trail, equal in length to the
trail time selected, is shown.
3. Trail continues.
For example, the one minute trail time is selected. When the elapsed time clock counts
up to 60 seconds, the elapsed time display
freezes at “60,” but the latest one minute of
trail are erased and then trail continuous.
13
Continuous trail
The maximum continuous trail time is 99 minutes and 59 seconds. When the elapsed time
clock counts up to that time the elapsed time
display is reset to zero and trail begins again.
Cancelling echo trail
Select “OFF (deactivate)” at “ECHO TRAIL”
on the menu.
Changing trail attributes
Trail gradation and trail time can be selected
on the OTHERS menu.
Figure 3-5 Radar interference
Table 3-1 Trailing attributes
Four levels of interference are available, including off; IR1, IR2, IR3 and OFF. IR3 provides the highest level of rejection.
Item in
OTHERS
menu
Trail
Tone
Description
Trails can be shown in
single or multiple
gradations. Multiple paints
trails getting thinner with
time just like the afterglow
on an analog PPI radar.
Single
Trail Time
3.5
Multiple
Trail time can be set for 15
sec., 30 sec., 1 min., 3 min.,
6 min., 15 min., 30 min., or
continuous.
Suppressing Radar
Interference
Radar interference may occur when near another shipborne radar operating in the same
frequency band as your radar. Its on-screen
appearance is many bright dots either scattered at random or in the form of dotted lines
extending from the center to the edge of the
display. Figure 3-5 illustrates interference in
the from of curved spokes. Interference effects are distinguishable form normal echoes
because they do not appear in the same place
on successive rotations of the antenna.
14
1. Press the [MENU] key.
2. Select “OTHER MENU” and press the
[ACQ/ENTER] key.
[ OTHERS ]
Select item by omnipad
and press ENTER key.
¡. Panel Dimmer
2 . Mark Brill
3 . HD Mark
4 . Characters
5 . Trail Tone
6 . Int Reject
7 . Pulselength
8 . Noise Reject
9 . Trail Time
3M
10. Tune
11. Disp Data
12. WPT Mark
13. EBL Ref
14. VRM Unit
15. Watchman
16. STBY Disp
17. Guard Mode
18. Own Position
19. Cursor Posi
20. Alm sense LV
21. Dead Sector
22. Range
1
1
1
1
Single
Off
Short
Off
15S
6M
Auto
Off
Off
Rel
nm
Off
Norm
In
L/L
R/B
Low
Off
1/8
1/4
2 £ 4
§
2
3
¢
2
3
¢
2
3
¢
2
3
¢
Multi
1
2
3
Long
On
30S
1M
15M 30M
Cont
Manu
Nav
ARP All
On
True
km
sm
5M
10M 20M
Econo
Nav
Out
TD
L/L
Mid
Hig
On
1/2 3/4 1 1.5
8 ⁄2 16 ¤4 ‹6
23. Self Test
24. Installation Setup
Figure 3-6 OTHER MENU
3. Select “6. IntReject”.
Out alarm
4. Select level desired by operating the
omnipad.
The alarm sounds on targets exiting the guard
zone. “G (OUT)” appears at the top right-hand
corner when the Out alarm is selected.
5. Press the [ACQ/ENTER] key.
6. Press the [MENU] key to close the menu.
IR and level selected appears at the bottom
right corner on the display when the interference rejection circuit is turned on.
3.6
Dashed line:
no alarm
Guard
zone
Selecting Pulsewidth
IN ALARM
Pulsewidth is the transmission time of a single
radar pulse. The longer the pulsewidth the
greater the direction range capability, however
range accuracy and range resolution are reduced.
Pulsewidth can be selected to short or long
on the 1.5 and 3 nautical mile ranges.
1. Press the [MENU] key.
2. Select “OTHER MENU” and press the
[ACQ/ENTER] key.
3. Select “7. Pulselength”.
OUT ALARM
Figure 3-7 In and Out alarm
Setting a guard zone
Preparation
1. Press the [MENU] key, and then select
“OTHER MENU” and pressing the [ACQ/
ENTER] key.
2. Select “17. Guard Mode” and “In” (alarm
on target entering zone) or “Out” (alarm
on target exiting zone) by operating the
omnipad.
4. Select Short or Long by pressing the
omnipad.
3. Press the [ACQ/ENTER] key.
5. Press the [ACQ/ENTER] key to select.
To set a guard zone
1. Mentally create the guard zone you want
to set.
6. Press the [MENU] key to close the menu.
3.7 Guard Alarm
The guard alarm allows the operator to set the
desired range and bearing for a guard zone.
When ships, islands, landmasses, etc. violate
the guard zone an audible alarm sounds and
the offending target brinks to call the
operator’s attention.
Selection of guard zone type
The guard alarm can be set to sound when a
target either enters or exits the guard zone.
You can select which type of guard alarm you
want through the menu.
4. Press the [MENU] key to close the menu.
2. Operate the omnipad to set the cursor on
point A or B. Press the [GUARD] key. “*G
(IN)” or “*G (OUT)”, with asterisk blinking, appears at the top right-hand corner of
the display. See Figure 3-8 (2). (The asterisk indicates the guard zone is partially set.)
3. Operate the omnipad to set the cursor on
point C or D. See Figure 3-8 (3).
4. Press the [GUARD] key. The asterisk disappears. See Figure 3-8 (4).
In alarm
The alarm sounds on targets entering the guard
zone. “G (IN)” appears at the top right-hand
corner when the In alarm is selected.
15
¡ A target echo does not always mean a landmass, reef, ships or surface objects but can
imply returns from sea surface or precipitation. As the level of these returns varies
with environment, the operator should
properly adjust the A/C SEA, A/C RAIN
and GAIN to be sure the alarm system does
not overlook target echoes.
Asterisk blinking
Guard zone
to set
A
* G (IN)
A
D
C
B
Drag cursor
here.
(1) Mentally create
the guard zone to set.
3.8 Watchman
(2) Drag cursor to
top left corner of
zone and press
[GUARD].
G (IN)
G (IN)
Guard
zone
C
Drag cursor
here.
(4) Guard zone
completed.
(3) Drag cursor to
bottom right corner
of zone and press
[GUARD].
The watchman function periodically transmits
the radar for minute to check for targets in a
guard zone. If it finds change in the zone from
the previous transmission it sounds the radar
continuously. This feature is useful when you
do not need the radar’s function continuously
but want to be alerted to radar targets in a specific area.
Tx
St-by
Tx
1 min
5, 10 or
20 min
1 min
Figure 3-8 How to set the guard zone
Silencing the audible alarm
Any radar targets violating the guard zone will
trigger the audible alarm. You can silence the
audible alarm by pressing the [GUARD] key.
When this is done, “G(ACKN)” replaces
“G(IN).” This means the alarm is
acknowledgrd. Press the key again to reactivate the alarm.
St-by
5, 10 or
20 min
Watchman
starts.
Figure 3-9 How watchman works
How watchman works
Press and hold down the [GUARD] key until
the guard zone disappears.
When the time selected for the watchman rest
period has elapsed, the radar automatically
transmits for one minute to check the condition inside the guard zone. If there is no
change, the radar goes into stand-by
(“WATCHMAN” appears during stand-by.) If
there is change, the radar sounds the audible
alarm, cancels the watchman function and
transmits continuously.
Notes on the guard alarm
Turning on watchman
¡ The alarm is a useful anti-collision aid, but
does not relieve the operator of the responsibility to also keep a visual lookout for
possible collision situations.
1. Create a guard zone (usually 360 degrees)
with the guard alarm function.
¡ When the radar range is less than one half
of the guard zone range, the guard zone disappears and “G (IN)” or “G (OUT)” appears in inverse video. If this happens, raise
to re-display the guard zone.
3. Select “OTHER MENU”.
Cancelling the guard zone and guard
alarm
16
2. Press the [MENU] key.
4. Press the [ACQ/ENTER] key.
5. Select “15. Watchman”.
6. Press the omnipad to select watchman rest
period; 5 minutes, 10 minutes or 20 minutes.
¡ range, bearing and time-to-go to both
waypoint selected on the navigator and the
cursor
“WATCHMAN” appears at the top of the
screen, the radar transmits for one minute to
check for targets inside the guard zone, and
then the CRT shuts off and the radar goes into
stand-by.
¡ speed.
(If the navigation input includes destination
data, waypoint position is denoted on the radar display by a dashed ring.)
Cancelling watchman
Go into the “OTHERS” menu, and set “15.
Watchman” for off.
To turn navigation data on or off;
Note 1: Watchman can be used without a
guard zone.
1. Press the [MENU] key.
Note 2: The alarm sounds just before the radar starts and stops transmitting.
3. Press the [ACQ/ENTER] key.
2. Select the “DISP DATA”.
4. Press the [ACQ/ENTER] key to select the
message for Navigation display.
3.9 Displaying Navigation Data
5. Prss the [ACQ/ENTER] key to set.
Navigation data can be displayed at the screen
bottom if this radar receives navigation input
in IEC 1162 format. Navigation data include
6. Press the [MENU] key to close the menu.
¡ position in latitude and longitude or Loran-C time difference
. 125NM
. 0625
HDG 234.5°
SP
HU
TRAIL AUTO
25:38 30M
G (OUT)
ZOOM
ES1
Waypoint Mark
A/C
AUTO
EBL
345.6° R
23.0° R
OWN SHIP
34° 56. 12N
135° 34. 56E
SPD 35.0KT
1.5 NM
13.5 ° R
0.06
0.142NM
+ CURSOR
34° 29. 98N
136° 35. 77E
TTG 01:00
VRM
0.048NM
0.100NM
WAYPOINT
0.09 NM
50.0°M
TTG 00:20
Navigation
Data
Figure 3-10 Typical navigation data display
17
3.10 OTHER MENU Description
The following summarizes the OTHER MENU.
Table 3-2 OTHER MENU Description
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Item
Panel Dimmer
Mark Brill
HD Mark
Charactors
Trail Tone
Int Reject
Pulselength
Noise Reject
Trail Time
Tune
Description
Select level of panel backlight.
Select brilliance of VRM, EBL, cursor, guard zone and WP marks.
Select brilliance of heading mark.
Select brilliance of charactors.
Select brilliance of echo trails.
Select level of interference rejection.
Select pulselength for 1.5 and 3 mile ranges.
Select “On” to reject noise.
Select the trail time.
Select automatic or manual tuning.
To tune manually;
1. Select “Menu” by the omnipad.
2. Press the [ENTER] key to enable manual tuning.
3. While pressing and holding down the [GAIN] control, operate
the omnipad.
4. Press the [ENTER] key.
“MANUAL” appears at the top right-hand corner when manual
tuning is in effect.
11. Disp Data
Select the down sourse to display.
12. WPT Mark
13. EBL Ref
14. VRM Unit
Select “On” to display the waypoint mark.
select EBL reference for relative or true.
Select distance unit of VRM and cursor for nm, km or sm.
15. Watchman
Turn watchman on (set rest period) or off.
16. STBY Disp
17. Guard Mode
Select the display on stand-by; display “STBY” or navigation data,
or go into the economy mode.
Select condition which triggers guard alarm; in or out.
18. Own Position
Display the cursor position in strength whitch trigger guard alarm.
19. Cursor Posi
Dispalay the cursor position in range/bearing or lat/long.
20. Alm sense LV
Select minimau echo strength which triggers guard alarm.
21. Dead Sector
Select “On” to display the dead sector.
22. Range
Select ranges in use.
23. Self Test
Test keys, ROM and RAM, check antenna rotation speed, and
display program no.
Go to the installation setup menu.
24. Installation Setup
18
3.11 Function Keys
3.12 Suppressing Noise
The function keys (F1 and F2) work like the
auto-dialing feature of a telephone, automatically executing the function assigned to them.
The function can be turned off by pressing
appropriate function key again.
Electrical noise can be suppressed by turning
on “8. NOISE REJ” on the OTHERS menu.
3.13 Adjusting Brilliance of
Markers
Default settings
F1: Shift (brief press) or Zoom (long press)
“2. Mark Brill” on the OTHER menu adjusts
the brilliance of markers such as the cursor.
F2: Ring brillience
3.14 Outputting Target Position
How to register menu items
1. Press the [MENU] key.
2. Press [A/C SEA] (F1) or [A/C RAIN] (F2)
to open the function menu.
[ SETTING FOR F1 KNOB ]
SSel by omnipad & press ENT.S
<Press MENU key to escape>
SHIFT/
ZOOM
EBL
OFFSET
SHIFT
ZOOM
RINGS
MODE
DISP
DATA
STBY
DISP
INT
REJECT
NOISE
REJECT
PULSE
LENGTH
ECHO
STRTCH
TRAIL
ON/OFF
TRAIL
TIME
TRAIL
TONE
TUNE
A/M
GUARD
IN/OUT
ALARM
LEVEL
DEAD
SECTOR
WATCH
MAN
PANEL
DIMMER
MARK
BRILL
CHARA
CTERS
OTHER
MENU
EBL
REF
VRM
UNIT
NAV
TALKER
WPT
MARK
OWN
POSITN
CUSOR
POSITN
VECTOR
LENGTH
VECTOR
REF
COLLI
SION
AUTO
ACQ
NO
FNCTN
HIS
TORY
Target position data can be output to the
navaid in IEC 1162 format. Press and hold
down the [TLL] key to output the data. This
function requires position data and heading
signal.
Figure 3-11 Function menu
3. Select function desired.
4. Press the [ACQ/ENTER] key.
5. Press the [MENU] key to close the menu.
19
4. FALSE ECHOES
Occasionally false echoes appear on the screen
at positions where there is no target. In some
cases the effects can be reduced or eliminated.
The operator should familiarize himself or herself with the appearance and effects of these
false echoes, so as not to confuse them with
echoes from legitimate contacts.
sented on both sides of the true echo at the same
range, as shown in Figure 4-2. Side-lobes show
usually only at short ranges and from strong targets. They can be reduced through careful reduction of the sensitivity or proper adjustment
of the A/C SEA.
Side-lobe
4.1 Multiple Echoes
Sprious
target
Multiple echoes occur when a short range,
strong echo is received from a ship, bridge, or
breakwater. A second, a third or more echoes
may be observed on the display at double, triple
or other multiples of the actual range of the target as shown in Figure 4-1. Multiple reflection
echoes can be reduced and often removed by
decreasing the sensitivity or properly adjusting
the A/C SEA.
True
echo
Own ship
Multiple
echo
Figure 4-1 Multiple echoes
4.2 Side-lobe Echoes
Every time the antenna rotates, some radiation
escapes on each side of the beam—called
“side-lobes.” If a target exists where it can be
detected by the side-lobes as well as the
main-lobe, the side-lobe echoes may be repre-
20
True echo
Main-lobe
Antenna
Figure 4-2 Side-lobe echoes
4.3 Indirect Echoes
Indirect echoes may be returned from either a
passing ship or returned from a reflecting surface on your own ship, for example, a stack. In
both cases, the echo will return from a legitimate contact to the antenna by the same indirect path. The echo will appear on the same
bearing of the reflected surface, but at the same
range as the direct echo. Figure 4-3 illustrates
the effect of an indirect echo. Indirect echoes
may be recognized as follows:
• they usually occur in a shadow sector
• they appear on the bearing of the obstruction but at the range of the legitimate contact
• when plotted, their movements are usually
abnormal, and
• their shapes may indicate they are not direct
echoes.
4.4 Blind and Shadow Sectors
Direct
path
Target
Heading
line
Funnels, stacks, masts, or derricks in the path
of antenna may reduce the intensity of the radar beam. If the angle subtended at the antenna
is more than a few degrees a blind sector may
be produced. Within the blind sector small targets at close range may not be detected while
larger targets at much greater ranges may be
detected. See Figure 4-4.
Indirect
path
Obstruction
Antenna (mast, funnel.
etc.)
Target
Indirect
path
Direct
path
Indirect
echo
True
echo
Heading
line
Own
ship
Vessel taller
than wharf
Wharf
Mast, etc. in
path of radar
beam
True
echo
Bridge
Indirect
echo
Figure 4-3 Indirect echoes
Wharf
Indirect
echo
Blind sector
(no echo)
Size of blind sector
depends on target
size and range.
Figure 4-4 Blind and shadow sectors
21
5. MAINTENANCE & TROUBLESHOOTING
This chapter tells you how to keep your radar
in good working order. Before reviewing this
chapter please read the safety information which
follows.
DANGER
Turn off the power before
performing any maintenance or
troubleshooting procedure.
Hazardous voltages can shock, burn or cause death.
Only qualified personnel totally famillier with electrical
circuits should work inside the units.
RF RADIATION HAZARD
The radar antenna emits high frequency
radio radiation which can be harmful,
particularly to your eyes.
Never look directly into the antenna from a distance of
less than two feet when the radar is in operation as
you could injure the cornea of your eyes. Always
make sure the radar is set to stand-by or is turned off
before starting work on the antenna unit.
5.1 Preventative Maintenance
Regular maintenance is important for good performance. Always keep the equipment as free
as possible from dirt, dust, and water splashes.
Make sure all screws securing the components
are properly tightened.
A maintenance program should be established
and should at least include the items listed in
table 5-1.
5.2 Replacing the Fuse
The fuse in the power cable protects the equipment against reverse polarity or ship’s mains,
overcurrent, and equipment fault. If the fuse
blows, find the cause before replacing it. Never
use an incorrect fuse – serious damage to equipment may result and void the warranty.
12 V:
10 A fuse
24-32 V: 5 A fuse
Table 5-1 Recommended maintenance program
Period
Item
Check point
Remarks
3 to 6
months
Exposed
nuts and
bolts on
antenna unit
Check for corroded or loosened
nuts and bolts. If necessary,
clean and repaint them thickly.
Replace them if heavily
corroded.
Sealing compound may be used
instead of paint. Apply a small
amount of grease between nuts
and bolts for easy removal in
future.
Antenna
radiator
(1932/1942)
Check for dirt and cracks on
radiator surface. Thick dirt should
be wiped off with soft cloth
dampened with fresh water. If a
crack is found, apply a slight
amount of sealing compound or
adhesive as a temporary
remedy, then call for repair.
Do not use plastic solvent
(acetone) for cleaning. If you
need to remove ice from antenna
unit, use a wooden hammer or
plastic head hammer. Crack on
the unit may cause water
ingress, causing serious
damages to internal circuits.
Radome
cover
(1832)
Check for wear. Permanent
damage to the antenna's internal
circuitry will result if water leaks
into the radome.
If a crack is found it should be
temporarily repaired by using a
small amount of sealing
compound or adhesive. You
should then contact your dealer
for service.
Display unit
connectors
Check for tight connection and
corrosion.
If corroded, contact your dealer
for replacement.
6 months
to 1 year
22
5.3 Troubleshooting
Table 5-2 contains simple troubleshooting procedures which you can follow to try to restore
normal operation. If you cannot restore normal
operation, do not attempt to check inside any
unit of the radar system. Any repair work is best
left to a qualified technician.
Table 5-2 Troubleshooting table
If...
But...
Then...
you pressed the
[POWER] key to
turn on the radar
the control panel
does not light
• try adjusting the control panel backlighting on the OTHERS menu.
• battery may have discharged.
• check fuse in power cable.
nothing appears on
the display or display
contrast is poor
• try adjusting the brilliance.
characters are
distorted
• request service.
the radar has
warmed up and you
pressed the
[STBY TX] key to
transmit
the antenna does not
rotate
• the problem may be in antenna unit.
Request service.
characters and
indications are
abnormal
• have a qualified technician check the
set.
you have adjusted
the gain with A/C
RAIN and A/C SEA
off
neither noise nor
targets appear
(indications and
markers do)
• check signal cable for damage.
neither indications nor
markers appear
(noise and targets do)
• check signal cable for damage.
the sweep (radial line
sweeping around the
display) is not
synchronized with
antenna rotation
• the problem may be in the antenna
unit. Request service.
there is no change in
sensitivity
• request service.
nothing happens
• key may be faulty. Request service.
a key is pressed
23
5.4 Self Test
The self test facility checks the keyboard,
ROM and RAM for proper operation.
1. Press the [MENU] key.
2. Select “OTHER MENU”.
3. Select “23. Self Test” and press the
[ACQ/ ENTER] key. The following display
appears.
6. Press the [ACQ] key to check the
display circuit. The following pattern
should appear.
[Self Test]
Key tset: Press each key and
check on-screen indication
lights.
ARP-10 TEST
ROM
OK 18990871xx
RAM
OK
SPEED OK NAV 0.0KT
COURSE OK
167.6°
TRIGGER NG
VIDEO
NG
BP
OK
HP
OK
MIN-HIT
0003
SCAN-TIME
0854
MAN-ACQ
00
AUTO-ACQ
00
FE-DATA1
0000
FE-DATA2
0000
Figure 5-2 Test pattern
7. Press the [MENU] key to show the
brilliance adjustment menu.
8. To escape from the selftest, press the
[MENU] key.
Program No.: 0359222-XX.XX
ROM
: OK
RAM
: OK
EEPROM : OK
Hours in use: 000006.9H
Tx hours:
000001.1H
OK
<Press MENU for OTHERS menu>
XX: Program Version No.
Figure 5-1 Self test screen
5.5 Life Expectancy of
Magnetron
The following table shows the life
expectancy of the magnetrons.
Table 5-3 Life expectancy of magnetrons
Model
4. The ROM and RAM are automatically
checked. If NG (No Good) appears to
the right of ROM or RAM indication,
contact your dealer for advice. ARP-10
TEST results appear only when optional
ARP-10 board is mounted.
5. To check the keyboard. Press any key
except the omnipad, ACQ and power
keys. Its corresponding location on the
display lights in black if the key is
operating properly.
24
Type
Code no.
Life
expectancy
1832/
1932
1942
E3571
000-146-867
MG4004
000-150-837
MAF1421B
000-147-385
MAF1422B
000-146-871
MG5389
000-135-146
2,000-3,000
hours
(Including
stand-by)
6. INSTALLATION
This chapter provides the procedures necessary for installation. Installation mainly consists of the following:
¡ siting and mounting the display unit and
antenna unit
¡ connection of the signal cable and the
power cable
¡ establishing the ground
¡ checking the installation, and
¡ adjustments.
6.1 Antenna Unit Installation
Siting, handling considerations
¡ The antenna unit is generally installed either
on top of the wheelhouse or on the radar mast
on a suitable platform. Locate the antenna
unit where there is a good all-round view
rigging intercepting the scanning beam. Any
obstruction will cause shadow and blind
sectors. A mast for instance, with a diameter
considerably less than the width of the
radicator, will cause only a small blind sector, but a horizontal spreader or crosstrees in
the same horizontal plane as the antenna unit
would be a much more serious obstruction;
you would need to place the antenna unit well
above or below it.
¡ The compass safe distance should be observed to prevent deviation of the magnetic
compass.
Model
Standard compass
Steering compass
1832
1932
1942
0.9 m
1.1 m
1.0 m
0.7 m
0.8 m
0.74 m
¡ Do not paint the radome (Model 1832) or
radiator aperture (Model 1932, 1942), to
ensure proper emission of the radar waves.
¡ When this radar is to be installed on larger
vessels, consider the following points:
(1) The signal cable run between the antenna and the display comes in lengths
of 10 m, 15 m, 20 m and 30 m. Whatever length is used it must be unbroken; namely, no splicing allowed.
(2) Deposits and fumes from a funnel or
other exhaust vent can adversely affect
the aerial performance and hot gases
may distort the radiator portion. The
antenna unit must not be mounted
where the temperature is more than
70°C.
Mounting (Model 1832)
¡ It is rarely possible to place the antenna unit
where a completely clear view in all direction
is available. Thus, you should determine the
angular width and relative bearing of any
shadow sectors for their influence on the
radar at the first opportunity after fitting.
(The method of determining blind and
shadow sectors appears later in this chapter.)
¡ If you have a radio direction finder on your
boat, local its antenna clear of the antenna
unit, to prevent interference to the direction
finder. A separation of more than two meters
is recommended.
Unpacking the antenna unit
¡ To lessen the chance of picking up electrical interference, avoid where possible routing the signal cable near other onboard
electrical equipment. Also avoid running
the cable in parallel with power cables.
2. Unbolt the four bolts at the base of the radome to remove the radome cover.
Figure 6-1 Typical antenna unit location
1. Open the antenna unit packing box carefully.
25
Radome cover
SHIP'S BOW
CABLE
ENTRY
Figure 6-2 Antenna unit
4-Ø12 HOLES
Mounting platform
Holes for antenna unit:
FLAT WASHER
The mounting surface must be parallel with
the waterline and provided with five holes
whose dimensions are shown in the outline
drawing attached at the end of this manual.
The unit is adjusted so a target echo returned
from the bow direction will be shown on the
zero degree (heading line) position on the
screen. When drilling holes, be sure they are
parallel with the fore and aft line.
3. Prepare a platform of 5 to 10 millimeters
in thickness for the antenna unit. (A mounting bracket for mounting the antenna unit
on a sailboat mast is optionally available.
See the below for details.) Find the cable
entry on the radome base. Next, position
the radome base so the cable entry faces
the stern direction. This alignment must be
as accurate as possible. Fasten the radome
base to the mounting platform with four
each of M10 x 25 hex bolts, flat washers
and spring washers.
Mask size;
φ70 to φ125 mm
PLATFORM
Antenna base plate
Effective
thread length
Packing
Radome
25 mm
5 - 10 mm
Flat
washer
Spring
washer
Apply silicone sealant
Platform
M10 x 25
Hex bolt
Figure 6-4 How to fasten the radome base
to the mounting platform
Wiring and final preparation
4. Drill a hole of at least 20 millimeters diameter through the deck or bulkhead to run
the signal cable between the antenna unit
and the display unit. (To prevent electrical
interference avoid running the signal cable
near other electrical equipment and in parallel with power cables.) Pass the cable
through the hole. Then, seal the hole with
sealing compound for waterproofing.
5. Remove the shield cover in the radome.
Type: OP03-92
Code no.: 008-445-070
Figure 6-3 Assembling the sailboat mast
mounting bracket (option)
26
SPRING WASHER
M10 X 25 HEX BOLT
6. Remove the cable clamping plate by unfastening four screws and removing a gasket.
Pan head screws
M4x8 4 pcs.
Cable clamping plate
Shield cover
Pan head
Gasket
screws
M4x8 7 pcs.
Shield cover
Pan head
screws
M4x8 7 pcs.
Figure 6-5 Antenna unit, inside view
10. Attach the EMC core supplied as shown
below.
J801 J802
J805
J804
Cable
entrance
Cable
clamping
plate
EMC core
E04SS251512
(Above cable J1
clamping
plate)
PTU-9335
J803
MD9208
J806
Motor
J613
J611 IF9214
7. Pass the cable through the hole at the bottom of the radome base.
8. Secure the cable with the cable clamping
plate and gasket. Ground the shield and
vinyl wire by one of the screws of the cable
clamping plate.
9. Connect the wire to the RF unit.
to one of the screws
of the cable clamping plate
9-pin connector:
to J801 on MD-9208
4-pin connector:
to J802 on MD-9208
13-pin connector:
to J611 on IF-9214
Figure 6-6 Signal cable, antenna unit side
J802
J801
Figure 6-8 How to attach EMC core
11. Fix the shield cover. Do not pinch the
cable.
12. Attach the radome cover, aligning triangle
mark on radome cover with that on radome base.
Radome cover
Radome base
Figure 6-9 How to position the radome
cover
13. Loosely fasten the radome fixing bolts.
You will tighten them after confirming
magnetron heater voltage.
MD-9208
Cable
entry
Mounting (Model 1932, 1942)
PTU-9335
J611
IF-9214
Figure 6-7 RF unit
Figure 6-10 Typical antenna unit mounting
locations
1. Drill four fixing bolt holes (13 millimeters
dia.), one cable entry hole (approx. 50 millimeters dia.) in the mounting platform. See
the outline drawing.
27
2. Detach the antenna housing cover from the
antenna housing by loosening four fixing
bolts. The antenna housing cover fitted with
the transceiver module can be stored in a
convenient place until the wiring to the antenna unit is done.
3. Place the antenna housing on the mounting platform and orient it as shown in Figure 6-11.
Ship's
bow
Ship's
bow
Figure 6-11 How to orient the antenna unit
4. Insert four M12 x 60 hex head bolts with
the seal washers from inside the antenna
housing, to prevent the bolts from contacting the transceiver module. Install the seal
washer with the larger diameter next to the
head of the bolt. Coat flat and spring washers and nuts and then use them to fasten
the antenna housing to the mounting platform. Finally, coat exposed parts of nuts,
bolts and flat and spring washers as shown
in Figure 6-12.
Note: Tighten the bolts by their nuts to prevent damage to the seal washer. Do not turn
the bolts to secure the antenna housing.
Only the signal cable runs from the display
unit to the antenna unit. Make the hole for
passing the cable through the bulkhead or deck
at least 20 millimeters diameter. In order to
minimize the chance of picking up electrical
interference, avoid where possible routing the
signal cable near other onboard electrical
equipment. Also, avoid running the cable in
parallel with power cables. Pass the cable
through the hole and apply sealing compound
around the hole for waterproofing.
The procedure for connecting the signal cable
to the antenna unit is as following.
1. Through a pipe or waterproof cable grand
fitted on the wheelhouse top or bulkhead.
2. Unfasten four screws at bottom of the scanner base to remove the cable gland assembly.
3. Pass the signal cable through the antenna
base and the cable gland assembly (removed in step 2.)
4-M4x10
CLAMP PLATE
PACKING
FLAT
WASHER
Figure 6-13 Passing the signal cable
through the antenna housing
Hex head bolt
(M12 x 60)
4. Fasten the cable gland assembly.
Seal washer
Scanner
housing
Silicone
sealant
Connections
Flat washer
Spring washer
Hex head nut
5. Connect the lead wires to RTB-9100 in the
antenna housing by referring to the Interconnection Diagram. Fasten the ground
washer at the bottom of the antenna housing as shown in Figure 6-13.
Figure 6-12 How to mount the antenna
housing
GROUND WIRE
Fasten
shield here.
RTB-9100
28
Figure 6-14 Connection in the antenna
housing
Final preparation
1. Place the antenna housing cover on the
housing. Loosely fasten the four fixing
bolts on the cover.
Scanner
radiator
Apply silicone sealant
into threaded holes.
O-ring
Radiator bracket
Scanner housing
cover
Flat washer
Fixing
holes
Spring washer
Hex head bolt
(M8 x 30)
Coat bolts with
silicone sealant.
Pinning
hole
Note: Apply anticorrosive sealant
to hached areas, antenna bracket
for XN12A type radiator.
Figure 6-15 Fastening the antenna
housing cover
2. Apply grease to the two slot pins. Using a
wooden hammer to prevent damage to
paint, insert slotted pins into the pinning
holes until the pin head is flush with the
scanner housing surface.
Radiator
bracket
Face in
stern direction.
Ship’s
bow
Slotted pin
Figure 6-18 Fastening the radiator to the
radiator bracket
4. Open the antenna housing cover and fix the
stay as shown in Figure 6-19.
5. One end of the cable with 15-, 9- and 7way plugs has already been connected to
RTB-9100 inside the scanner housing.
Mate the 15- and 9-way plugs with jacks
J812 and J811 on the transceiver module,
respectively. Connect the 7-way plug to
jack J701 on the MP Board. Secure the
cable between RTB-9100 and J701 with the
cable tie as shown in Figure 6-19.
MP Board
Figure 6-16 How to insert slot pins
3. Now is the time to fix the radiator to the
radiator bracket. Apply anticorrosive sealant (silicone sealant) to hatched areas, to
prevent corrosion. See the figure below.
Apply silicone sealant into threaded holes
on the scanner radiator. Remove the cap
on the radiator bracket and orient the radiator bracket as shown in Figure 6-13.
Apply grease to the O-ring and set it to the
center of the radiator bracket. Coat the radiator fixing bolts with silicone sealant.
Fasten the radiator to the radiator bracket
with the FURUNO logo on the radiator facing ship’s bow.
;;;
;;;
Waveguide
Fasten ground
wire here.
Cable
tie
J812
J811
Stay
Figure 6-19 Antenna unit, cover opened
6. Fasten the ground wire (black) of the signal cable to the chassis as shown in Figure
6-19.
7. Loosely fasten the antenna housing cover.
You will tighten the fixing bolts after confirming magnetron heater voltage.
Groove
Note: Apply anticorrosive
sealant to hatched areas,
antenna radiator bottom
view of XN8 type radiator.
Figure 6-17 How to coat radiator with
silicone sealant for XN8 type radiator
29
6.2 Display Unit Installation
Mounting
Mounting considerations
The display unit is designed to be mounted
on a tabletop or bulkhead.
When selecting a mounting location for the
display unit keep in mind the following points.
1. Using the hangar as a template, mark screw
locations in the mounting location.
¡ Even though the display unit is waterproof,
it is recommended that the display unit
must be mounted inside an enclosed cabinet.
2. Fix the hanger to the mounting location
with five M6 tapping screws (supplied).
¡ Provide adequate space behind and around
the unit to permit circulation of air and to
provide convenient access to the rear connectors.
¡ Even though the picture is quite legible
even in bright sunlight, keep the display
unit out of direct sunlight or at least shaded
because of heat that can build up inside the
cabinet.
¡ Locate the display unit in a position where
you can view and operate it conveniently
but where there is no danger of salt or fresh
water spray or immersion.
¡ The orientation of the display unit should
be so the radar screen is viewed while the
operator is facing in the direction of the
bow. This makes determination of your
position much easier.
¡ Make sure you allow enough clearance
both to get to the connectors behind the unit
and to allow you to get your hands in on
both sides to loosen or tighten the mounting knobs. Make sure you leave at least a
foot or so of “service loop” of cables behind the unit so it can be pulled forward
for servicing or easy removal of the connectors.
¡ The compass safe distance of 0.8 meters
(standard compass) and 0.6 meters (steering compass) should be observed to prevent deviation of the magnetic compass.
¡ Even though the display unit meets waterproof standard IPX-5, the connection of external buzzer, radar plotter and/or remote
display can affect waterproofness. Watertight integrity cannot be guaranteed. When
these modification has been done, the display unit should not be mounted where exposed.
3. Fit the knob bolts to the display unit. Install the display unit in the hunger. Tighten
the knob bolts securely.
Connections
1. Connect the power cable to the power cable
connector on the rear of the display unit.
2. Connect the signal cable to connector DJ1 on the rear of the display unit.
3. Run a ground wire (local supply) between
the ground terminal on the rear of the display unit and the ship’s superstructure.
Navigation aid, video sounder connection
If your navigation aid can output data in
IEC1162(NMEA 0183) data format, your
vessel's position in latitude and longitude, the
range and bearing to waypoint, speed and
course may be input to this radar, and be seen
on the screen.
Further if your video sounder can output depth
in IEC1162 (NMEA 0183) data format, depth
can be displayed on the radar screen.
You will need an NMEA cable:
Type
MJ-A6SPF0012-050
MJ-A6SPF0012-100
MJ-A6SPF0003-050
MJ-A6SPF0009-100
Code no.
000-134-424
000-133-817
000-117-603
000-125-236
This radar can output NAV data received from
a navaid to an echosounder.
03P9369
INT9213
J1352 (NMEA)
Navaid
(TLL)
Echosounder
J1354
1832/1932/1942
30
Remarks
6P-6P (5m)
6P-6P (10m)
w/connector
w/connector
Heading Sensor Connection
Heading signal can be connected to the
“HDG” connector.
Type
MJ-A6SPF0007-100
MJ-A6SPF0009-100
MJ-A6SPF0003-050
Code no.
000-125-237
000-125-236
000-117-603
Remarks
6P-6P 10m
w/connector (10m)
w/connector (5m)
Input/Output Data List
Model
Connector
Name
Data
Pin
In/Out
FCV561M2
J1
183 (1.5)
4
In/Out
FCV581
NMEA
183 (1.5)
4
In/Out
FCV582
NMEA
183 (1.5)
4
In/Out
FCV291
NMEA
183 (1.5/2.0)
6
In/Out
FCV292
NMEA
183 (1.5/2.0)
6
In/Out
FCV668
NMEA
183 (1.5)
4
In/Out
GP1810
IN/OUT
183 (1.5/2.0)
6
In/Out
GP3100M2
IN/OUT
183 (1.5)
6
In/Out
GP8000M2
NMEA
183 (1.5/2.0)
4
In/Out
PS8000M2
NMEA
183 (1.5/2.0)
4
In/Out
GP80
DATA1
183 (1.5/2.0)
6
In/Out
GP80
DATA2
183 (1.5/2.0)
6
In/Out
GP1800M2
IN/OUT
183 (1.5/2.0)
6
In/Out
Note: All plotter in the table except the GP1800M2 can receive TLL data.
31
CAUTION
Replace the fuses to
5 A for 24/32 VDC set.
Power cable connector
External equipment
connector
(To be used for Remote
Display, External Alarm
Buzzer OP03-21.)
Signal cable connector
(DJ-1, waterproof)
Left: HDG connector
Mid: NMEA connector (for NAV)
Right:NMEA connector (for E/S)
Ground terminal
CAUTION
Ground the equipment. Ungrounded
equipment can give off or receive
electro-magnetic interference or give
electrical shock.
Figure 6-20 Connections on the display unit
6.3 Exchange of Fuse for
24/32V Power Supply
The power cable comes with a 10A fuse in
the fuse holder. This fuse is for use with a
12V DC power supply. For 24V/32V DC
power supply, replace the fuse with the 5A
fuse (supplied) and attach 5A label (supplied)
to fuse holder.
6.5 Adjustments
This section covers adjustment of the radar
after installation. You will need to
¡ adjust tune/video amplifier level input
¡ enter antenna height
¡ align heading
¡ adjust sweep timing
6.4 Checking the Installation
¡ adjust main bang suppression
After completing the installation, it is a good
idea to recheck it to be sure all steps were
correctly done. Use the table 6-1 to check the
installation.
¡ setting a blanking area, and
Tick box
The signal cable is securely retained
against the mast or mounting platform and
is free of interference from running rigging.
The cable gland or entry on the deck, if
provided, is waterproofed.
The power connections to the battery are
of correct polarity.
The plugs at the rear of the display unit
are tightly fastened.
The fuse in the power cable is 10A (12V)
or 5A (24V/32V DC).
32
¡ confirm magnetron heater voltage.
These adjustments are done through the radar
install menus.
Preparation
1. Turn off the radar. While pressing and holding down the [GAIN] control (at least three
seconds), press the [POWER] key.
2. Press the [MENU] key, and select “OTHERS” by using the omnipad, and pressing
[ACQ/ENTER] key.
3. Select “24. Installation setup”.
4. Press the [ACQ/ENTER] key to open the
installation setup menu.
Entering antenna height
[ Installation Setup ]
Select item by omnipad
and ress ENTER key.
All
¡. Nav Talker
m
2 . Depth Unit
˚C
3 . Temp Unit
Magnet
4 . Hdg Sensor
Off
5 . Key Beep
Rotate
6 . Ant on Tx
180˚~180˚
7 . Dead Sector
8 . Tuned/Video Auto Adjustment
9 . Heading Alignment
10. Sweep Timing Adjustment
11. MBS Adjustment
Low
12. Ant Height
13. STC Curve
14. Ope Mode
15. Hours in Use
16. Tx Hours
LC
ft
GPS
fa
˚F
Gyro
On
Stop
Mid
Sharp
Std
Master
Slave
000001.5H
000000.0H
The STC curve changes with respect to antenna height above the waterline. Enter antenna height above the waterline to optimize
the STC curve.
1. Select “12. Antenna Height” on the installation setup menu and press the [ACQ/ENTER] key.
Hig
Gntl
Figure 6-21 Installation setup menu
Adjusting tune/video
Do the following to adjust tune and video amplifier level input.
1. Press the [ST BY/TX] key to transmit.
WARNING
Before transmitting the radar make sure
no one is near the antenna unit, to prevent the potential risk of being struck
by the rotating antenna and exposure
to RF radiation hazard.
2. On the Installation setup menu, select “8.
Tune/Video Adjustment” and press the
[ACQ/ENTER] key.
3. The unit automatically adjusts, displaying
the following message.
[ Tune/Video Auto Adjustment ]
Now under correction.
Return to illustration setup.
menu after the correction.
Figure 6-22 Tune/Video Auto
Adjustment messages
4. When adjustment is completed, the messages disappears.
2. Operate the omnipad to select antenna
height above the waterline; Low (~3 m),
Mid (3~6 m) or High (6~10 m).
3. Press the [ACQ/ENTER] key.
Aligning heading
(Adjustment sector:0~359.90)
You have mounted the antenna unit facing
straight ahead in the direction of the bow.
Therefore, a small but conspicuous target dead
ahead visually should appear on the heading
line (zero degrees).
In practice, you will probably observe some
small error on the display because of the difficulty in achieving accurate initial positioning of the antenna unit. The following
adjustment will compensate for this error.
1. Identify a suitable target (for example, ship
or buoy) at a range between 0.125 to 0.25
nautical miles, preferably near the heading mark. To lessen error, keep echoes in
the outer half of the picture by changing
the range. Also, be sure the zoom and off
center functions are off.
2. Select “9. Heading Alignment” on the installation setup menu and press the [ACQ/
ENTER] key. The following message appears on the display.
[ Heading alignment ]
Set EBL1 to center of target
dead ahead and press ENTER.
Correction
0.0°
<Press MENU for inst setup>
Figure 6-23 Heading alignment message
3. Operate the omnipad to bisect target selected at step 1 with the heading line.
4. Press the [ACQ/ENTER] key.
33
5. As a final test, move the boat towards a
small buoy and confirm that the buoy
shows up dead ahead on the radar when it
is visually dead ahead.
[ Sweep Timing Adjustment ]
Use omnipad to straighten
target and press ENTER key.
Correction
Adjusting sweep timing
(Adjustment range:0.000~3.239nm)
This adjustment ensures proper radar performance, especially on short ranges. The radar
measures the time required for a transmitted
echo to travel to the target and return to the
source. The received echo appears on the display based on this time. Thus, at the instant
the transmitter is fired, the sweep should start
from the center of the display (sometimes
called sweep origin.)
A trigger pulse generated in the display unit
goes to the antenna unit through the signal
cable to trigger the transmitter (magnetron).
The time taken by the signal to travel up to
the antenna unit varies, depending largely on
the length of signal cable. During this period
the display unit should wait before starting
the sweep. When the display unit is not adjusted correctly, the echoes from a straight
local object (for example, a harbor wall or
straight pier) will not appear with straight
edges - namely, they will be seen as “pushed
out” or “pulled in” near the picture center. The
range of objects will also be incorrectly
shown.
0.000 nm
<Press MENU for inst setup>
Figure 6-25 Sweep timing adjustment
message
4. Operate the omnipad to straighten the target selected at step 2, and then press the
[ACQ/ENTER] key.
Adjusting MBS
(Adjustment: 0.00~0.25)
Main bang (black hole), which appears at the
display center on short ranges, can be suppressed as follows.
1. Transmit on long range about 10 minutes.
2. Adjust the gain to show a small amount of
noise on the display.
3. Change to the 0.125 nautical mile range
and adjust the [A/C SEA] control.
4. Select “11. MBS adjustment” on the installation setup menu.
5. Press the [ACQ/ENTER] key. The following message appears.
[ MBS Adjustment ]
Set value by omnipad
and press ENTER key.
Correction
000
<Press MENU for inst setup>
(1) Correct
(2) Target pushed
inward
(3) Target pushed
outward
Figure 6-24 Examples of improper and
correct sweep timing
1. Transmit on the shortest range and confirm
that the [GAIN] and [A/C SEA] controls
are properly adjusted.
2. Visually select a target which forms straight
line (harbor wall, straight pier).
3. Select “10. Sweep Timing Adjustment” on
the installation setup menu and press the
[ACQ/ENTER] key. The message appears.
34
Figure 6-26 MBS Adjustment message
6. Operate the omnipad to suppress main
bang. (left: low, right: high, between 0 and
25)
7. Press the [ACQ/ENTER] key.
Setting a blanking area
Magnetron heater voltage
When the antenna is installed at a close distance in front of the wheelhouse, the radar
should be set not to transmit within that area.
No echoes appear in the blanking areas.
Magnetron heater voltage is formed at the MD
Board of the antenna unit and preadjusted at
the factory for use with any length of signal
cable. Therefore no adjustment is required.
However, verify heater voltage by following
the procedure below.
1. Select "7. Dead Sector".
2. Press the [ENTER] key.
3. Operate the omnipad to enter starting point
of area (in figures).
4. Press the [ENTER] key.
5. Operate the omnipad to enter ending point
of area (in figures).
6. Press the [ENTER] key.
1. Turn on the radar (if it is not already on)
and set it in stand-by.
2. Open the antenna housing (radome) cover.
Connect a multitester, set to 10 V DC range.
Model
Check Point
Rating
Adjustment
point
M1832
TP802 #4, #6 on
PTU Board
7.4~7.6V
R106
M1932
TP803 #4, #6 on
MD Board
7.4~7.6V
VR801
M1942
TP803 #4, #6 on
MD Board
7.5~7.7V
VR801
3. Close the antenna housing cover and tighten
the fixing bolts.
Area of no
transmission
Figure 6-27 Blank areas where
transmission is suspended
This area can be turned on/off on the OTHER
MENU. For detail, see the description on page
18.
Note: This setting should be done after other
adjustments are finished.
35
This page is intentionally left blank.
MENU TREE
MENU KEY
RINGS (Off, 1, 2, 3, max)
EBL OFFSET (Off, On)
SHIFT (Off, On)
ZOOM (Off, On)
MODE (HU, CU, NU, TM)
DISP DATA
ECHO TRAIL (Off, On)
ECHO STRTCH (Off, ES1, ES2)
ARP-10 MENU
OTHER MENU
1. Display
2. All Cancel
3. Vector ref
4. Vector Length
5. History
6. CPA SET
7. TCPA SET
8. AUTO ACQ
1. Panel Dimmer (1, 2, 3, 4)
2. Mark Brill (1, 2, 3, 4)
3. HD Mark (1, 2, 3, 4)
4. Characters (1, 2, 3, 4)
5. Trail Tone (Single, Multi)
6. Int Reject (Off, 1, 2, 3)
7. Pulselength (Short, Long)
8. Noise Reject (Off, On)
9. Trail Time
(15S, 30S, 1M, 3M, 6M, 15M, 30M, Cont)
10. Tone (Auto, Manu)
11. Disp Data (Off, Nav, ARP, All)
12. WPT Mark (Off, On)
13. EBL Ref (Rel, True)
14. VRM Unit (nm, km, sm)
15. Watchman (Off, 5M, 10M, 20M)
16. STBY DISP (Norm, Econo, Nav)
17. Guard Mode (In, Out)
18. Own Position (L/L, TD)
19. Cursor Posi (B/R, L/L)
20. Alm Sense LV (Low, Mid, High)
36) :1832
21. Dead Sector (Off, On)
36, 48) :1932
22. Range
(1/8, 1/4, 1/2, 3/4, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48, 64) :1942
23. Self Test
24. Installation Setup
1. Nav Talker (All, GPS, LC)
2. Depth Unit (m, fa, ft)
3. Temp Unit (°C, °F)
4. Hdg Sensor (Magnet, Gyro)
5. Key Beep (Off, On)
6. Scan Stop (Rotate, Stop)
7. Dead Sector
8. Tune/Video Adjustment
9. Heading Alignment
10. Sweep Timing Adjustment
11. MBS Adjustment
12. Ant Height (Low, Mid, high)
13. STC Curve (Sharp, Std, Gntl)
14. Ope Mode (Master, Slave)
15. Hours in Use
16. TX Hours
AP-1
ARP-10 (OPTION)
NOTICE
WARNING
Hazardous voltage can
shock, burn, or cause death.
Only qualified personnel should
work in the unit.
This auto plotter is not designed to
replace the human eye nor make
decisions for the navigator. It is
intended for use as an aid to navigation.
Always maintain a watch while
underway. Data obtained from this auto
plotter should always be double checked
against other sources to verify the
reliability of the data.
This auto plotter automatically tracks a
acquired radar target and calculates its
course and speed, indicating it by a vector.
Since the data generated by this unit are
based on what radar targets are selected,
the radar must always be optimally tuned
for use with it to ensure that required
targets will not be lost or unwanted targets
such as sea returns and noise will not be
acquired and tracked.
A target echo does not always mean a
landmass, reef, ships or other surface
objects but can imply returns from sea
surface or precipitation. As the level of
these returns varies with environment, the
operator is required to properly adjust the
STC (ant-clutter sea), FTC (anti-clutter rain)
and GAIN controls to ensure that target
echoes within the affected area are not
eliminated from the radar screen. The
optimum settings of these controls may
slightly differ between the normal radar
operation and plotting, and it is
recommended to readjust them in
accordance with the operating mode
selected.
AP-2
The installation must be done by a
FURUNO representative or suitably
qualified radar technician.
Authorities require this.
Keep magnets and magnetic fields
away from the equipment.
Magnetic fields will distort the picture and
can cause equipment malfunction. Be sure
the unit is well away from equipment
which gives off magnetic fields
(speaker, power transformer, etc.).
The following items affect calculation
accuracy.
echo intensity
radar transmission pulsewidth
radar bearing error
gyrocompass error
own vessel or other vessel course
change
Q
Q
Q
Q
Q
Data for CPA, TCPA, etc. are
approximations only. Always use data
obtained prudently.
Operation of ARP-10
Keys Used for Auto Plotter
General
The Auto plotter utilizes the following
touchpad keys. Given below is a brief description of these keys.
The Auto Plotter ARP-10 is an optional circuit board which is accommodated in the display unit of the MODEL 1832, 1932 and 1942
radars.
The Auto Plotter permits manual or automatic
acquisition and automatic tracking of up to
10 radar targets. An internal microprocessor
calculates target data such as speeds and
courses and displays the results in alphanumeric and by vectors. To ensure the reliability of the displayed target data, the radar must
be properly adjusted for minimum sea returns
and noise.
MENU:
Displays/Erases the main menu.
SELECT/CANCEL:
(Long press) Terminates plotting of the target
selected with the cursor.
(Brief press) Displays the data of target selected with the cursor.
ACQ/ENTER:
Acquires the target selected
with the cursor.
ARP-10 MENU Operation
Principal Specifications
The ARP-10 MENU operation includes the
followings;
Acquisition and tracking:
Display:
• Acquisition of up to 10 targets between 0.2
and 16 nm.
All Cancel:
• Automatic tracking of up to 10 acquired
targets between 0.1 and 16 nm.
Vectors:
Vector length; 30 s, 1, 3, 6, 15, 30 min.
Orientation; True velocity or relative
velocity
Past positions:
Alarm:
5 past positions at intervals
of 15, 30 s, 1, 2, 3, 6 min.
Visual and audible alarms against
targets violating CPA/TCPA
limits, Visual alarm against lost
targets
Target discrimination: A target measuring
about 800 m or more in the radial or circumferential direction is regarded as a landmass
and not acquired or tracked. Echoes smaller
than about 800 m are regarded as true targets.
Turns on/off the plot symbols, past
positions and target data.
Cancels the tracking of all
targets.
Selects relative vector or
true vectors. To select your choice, open the
ARP-10 menu, and the legend Rel and True
appear on the "3. Vector Ref" line. Operate
the omnipad. When your selection is in the
reverse video, press the [ACQ/ENTER] key.
Vector Ref:
Vector Length: Selects vector time.
History:
Selects past position plot interval.
CPA Set: Selects CPA alarm limit. When a
target is predicted to come within this limit,
an aural alarm sounds and at the same time
the corresponding target symbol changes to a
blinking triangle.
Note:If the preset CPA limit is set at OFF, a
target which is on collision course will not
produce an alarm.
TCPA Set: Selects TCPA alarm limit.
Auto ACQ: Turns on/off Auto Acquisition
Area.
AP-3
Activating the Auto plotter
[ ARP MENU ]
Select item by omnipad
and press ENTER key.
To activate the Auto Plotter, follow the steps
shown below:
¡. Display
2 . All Cancel
3 . Vector Ref
4 . Vector Length
1. Adjust the GAIN, A/C SEA and A/C RAIN
controls for proper radar picture.
2. Press the [MENU] key to open the main
menu.
5 . History
6 . CPA Set
3. Operate the omnipad to select "ARP-10
MENU".
7 . TCPA Set
4. Press the [ACQ/ENTER] key. The menu
shown in Figure AP-1 appears.
8 . Auto ACQ
Off
On
True
30S
15M
3M 6M
Off 15S 30SLo
2M 3M Off6M
Off 0.5 1nm
3nm 5nm 6nm
30S 1M 2M
4M
5M 6M
On
Off
Rel
1M
30M
1M
2nm
3M
12M
Figure AP-1 ARP Menu
5. Operate the omnipad to select the menu
item "1. Display".
6. Operate the omnipad to select "On".
7. Press the [ACQ/ENTER] key.
8. Press the [MENU] key to close the menu.
Target under auto tracking but not
selected for cursor data reading
Target Full
Mark
8 NM
TARGET
2 AUTO
FULL
HDG 234.5°
SP
HU
TRAIL AUTO
25:38 30M
G (OUT)
ZOOM
ES1
Target selected
for data reading
Auto
Acquisition
Area
Lost Target
Threatening
target
A/C
AUTO
EBL
345.6° R
23.0° R
13.5 ° R
TRUE VECTOR
15 MIN
0.142NM
BEARING 42.5°T
RANGE 5.36 NM
CPA
2 NM
VRM
0.048NM
0.100NM
COURSE 287.8°T
SPEED 12.5 KT
TCPA
12:35
Figure AP-2 ARP Display
AP-4
ARP Data Area
Deactivating the Auto Plotter
To deactivate the Auto Plotter,
1. Open the "ARP-10 MENU".
LARGE CIRCLE
The plot symbol of a target under tracking
becomes twice as large as the normal symbol
when the target is selected for data reading.
2. Operate the omnipad to select the "1. Display".
5. Operate the omnipad to select "Off".
6. Press the [ACQ/ENTER] key.
7. Press the [MENU] key to close the menu.
Acquiring targets
Manual Acquisition
Follow the steps below to manually acquire a
target. Up to 10 targets can be manually acquired.
1. Place the cursor (+) on a target of interest
by operating the omnipad.
2. Press the [ACQ/ENTER] key.
The plot symbol changes its shape according
to the status as below. A vector appears in
about one minute after acquisition indicating
the target's motion trend. If the target is consistently detected for three minutes, the plot
symbol changes to a solid mark. If acquisition fails, the target symbol blinks and disappears shortly.
SQUARE (dotted)
Immediately after acquisition - Plot symbol
shown in broken lines.
SQUARE (dotted with a vector)
One minute after acquisition - Vector still unreliable.
CIRCLE (Solid with a vector)
3 minutes after acquisition - Plot symbol
changes to a solid circle indicating the stable
tracking condition.
Note 1:The target to be acquired should be
within 0.2 to 16 nm from own ship and not
obscured by sea or rain clutter for successful
acquisition.
Note 2:When you want to acquire 11th target,
cancel tracking one of less important targets.
Note 3:When auto acquisition mode (Auto
ACQ) is on, up to 5 targets can be acquired.
For detail, see next section titled Automatic
Acquisition.
WARNING
When a tracked target nears another
tracked target, the targets may be
"swapped." When two targets come close
to each other, one of the two can become
a "lost target." Should this happen,
reacquisition of the "lost target" is required
after the two targets have separated.
Automatic Acquisition
The Auto plotter ARP-10 can acquire up to 5
targets automatically by setting the Auto Acquisition area predefined in the system. If Auto
ACQ is selected after more than 5 targets have
been manually acquired, only the remaining
capacity of targets can be automatically acquired. Example; when 7 targets acquired
manually, then the Auto ACQ is switched on
only 3 targets can be acquire automatically.
When five targets have been automatically
acquired, "AUTO TARGET FULL" message
appears at top left corner on the display.
Setting Auto Acquisition Area
Auto acquisition area is predefined between
2.0 and 2.5 nm in range and 45º on either side
of the heading line in bearing. If a target come
into this area, it is acquired automatically.
AP-5
To turn ARP data on;
1. Press the [MENU] key.
2. Select the "DISP DATA".
Figure AP-4 Auto acquisition area
Follow the steps shown below to activate the
auto acquisition area;
3. Press the [ACQ/ENTER] key to select the
message for "ARP" or "NAV and ARP ".
4. Press the [ACQ/ENTER] key to set.
5. Press the [MENU] key to close the menu.
1. Open the "ARP-10 MENU".
2. Select "8. Auto ACQ" by operating the
omnipad.
3. Operate the omnipad to select "On".
4. Press the [ACQ/ENTER] key.
CAUTION
At the speed under 5 kts the target data is
displayed with a delay because of
filtration.
5. Press the [MENU] key to close the menu.
Terminating Tracking of Targets
When the Auto Plotter has acquired 10 targets, no more acquisition occurs unless targets are lost. Should this happen, cancel
tracking of individual targets or all targets by
the procedure described below.
Individual Targets
Place the cursor (+) on a target which you do
not want to be tracked any longer by operating the omnipad and press and hold down the
[SELECT/CANCEL] key.
All Targets
All targets can be canceled from "ARP-10
MENU" at a time.
1. Open the "ARP-10 MENU".
2. Select "2. All Cancel".
3. Press the [ACQ/ENTER] key.
Displaying Target Data
The Auto Plotter calculates motion trends
(range, bearing, course, speed, CPA and
TCPA) of all targets under tracking at the ARP
Data area.
AP-6
Place the cursor on a wanted target and press
the [SELECT/CANCEL] key. Data on the selected target is displayed at the bottom of the
screen. The symbol of the selected target gets
twice as large as the normal circle. The data
includes the follows;
RNG/BRG (Range/Bearing): Range and
bearing from own ship to the last-plotted or
selected target position with suffix "T" (True)
or "M" (Magnetic). For true bearings suffix
"T" is used in case of gyrocompass input and
suffix "M" is used in case of magnetic compass input.
COURSE/SPEED (Course/Speed):
Course and speed are displayed for the lastplotted or selected target with suffix "T" (True)
or "M" (Magnetic). For true bearings suffix
"T" is used in case of gyrocompass input and
suffix "M" is used in case of magnetic compass input.
CPA (Closest Point of Approach) is the closest range a target will approach to own ship.
Do not mix it with the operator preset CPA
alarm limit.
TCPA is the time to CPA measured with
present speeds of own ship and the targets.
Both CPA and TCPA are automatically calculated. When a target ship has passed clear
of own ship, the CPA is displayed and the
TCPA appears as "**.*". TCPA is counted up
to 99.9 min. and beyond this it is indicated as
TCPA>99.9 min.
Mode and length of Vectors
True or Relative Vector
Target vectors are displayed in relative or true
mode. Own ship does not have a vector in relative mode.
Vector Length
From the ARP-10 MENU, Vector Length can
be set to 30 seconds, 1, 3, 6, 15 or 30 minutes
and the selected vector time is indicated on
the screen.
The vector tip shows an estimated position of
the target after the selected vector time
elapses. It can be valuable to extend the vector length to evaluate the risk of collision with
any target.
CPA/TCPA Alarm
Visual and audible alarm are generated when
the predicted CPA and TCPA of any target
become less than their preset limits. The audible alarm continues for 10 seconds.
The Auto plotter ARP-10 continuously monitors the predicted range at the Closest Point
of Approach (CPA) and predicted time to CPA
(TCPA) of each tracked target to own ship.
When the predicted CPA of any target becomes smaller than a preset CPA alarm range
and its predicted TCPA less than a preset
TCPA alarm limit, the ARP-10 releases an
audible alarm. In addition, the target plot symbol changes to a triangle and flashes together
with its vector.
Provided that this feature is used correctly, it
will help prevent the risk of collision by alerting you to threatening targets. It is important
that GAIN, A/C SEA, A/C RAIN and other
radar controls are properly adjusted and the
Auto Plotter is set up so that it can track targets effectively.
CPA/TCPA alarm ranges must be set up properly taking into consideration the size, tonnage, speed, turning performance and other
characteristics of own ship.
Past position Display
The Auto Plotter displays equally time-spaced
dots (maximum 5 dots) marking the past positions of any targets being tracked.
If a target changes its speed, the spacing will
be uneven. If it changes the course, its plotted
course will not be a straight line in TM mode.
Operational Warnings
WARNING
The CPA/TCPA alarm feature should
never be relied upon as a sole means for
detecting the risk of collision.
The navigator is not relieved of the
responsibility to keep visual lookout for
avoiding collisions, whether or not the
radar or other plotting aid is in use.
There are two main situations which cause the
Auto plotter to trigger visual and audible
alarms.
Follow the steps shown below to set the CPA/
TCPA alarm ranges:
• CPA/TCPA alarm
1. Open the "ARP-10 MENU".
• Lost target alarm
2. On the "CPA Set" line, select a CPA limit
desired. (Off, 0.5, 1, 2, 3, 5, 6 nm)
3. Press the [ACQ/ENTER] key.
AP-7
4. On the "TCPA Set" line, select a TCPA limit
desired. (30s, 1, 2, 3, 4, 5, 6, 12M)
5. Press the [ACQ/ENTER] key.
6. Press the [MENU] key to close the menu.
The flashing of the triangle plot symbol and
vector remain on the screen until the dangerous situation is no longer present or you intentionally terminate tracking of the target by
using the [SELECT/CANCEL] key.
2. Attach the ARP-10 Board to the right-hand
chassis of the display unit, using the spacer
supplied as follows.
1) Fasten three spacers tightly.
2) Attach the P107 connector on ARP10 Board to J107 connector on
SPU Board.
3) Tighten three pan head screws to fix the
ARP-10 Board.
Lost Target Alarm
Front
When the system detects a loss of a tracked
target, the target symbol becomes a flashing
diamond.
$
Spring Washer
M3 3pcs.
Spacer
SQ-20 3pcs.
Installation of ARP-10
$
Pan Head
Screw
M3 x 8 3pcs.
Necessary Parts
P107
J107
ARP-10 (000-086-852)
Name
ARP-10 Board
Spacer
Type
18P9007
SQ-20
Spring Washer
M3 C5191W
Code No. Qty
008-476-930 1
000-801-650 3
000-864-204 3
Pan Head Screw** M3x8 C2700W 000-881-404
Pan Head Screw
3x8 SWRM10 000-805-774
(w/washer) *
53
ARP-10 Board
18P9007
SPU Board
03P9369
$: Pull the front panel slightly to fix these screws.
3
* Not used.
**:Use three screws only.
Mounting (For technician only)
1. Remove the cover from the display unit as
follows.
1 Unscrew four binding screws (M4 x
10).
2 Unfasten six binding screws (M3 x
10).
Input Signal Check
Place the radar in transmit condition after connecting the speed and heading sensor. Make
sure the following items are OK on Self Test
menu.
• SPEED
• COURSE
• TRIGGER
3 Remove three rubber covers to loosen
three hex nuts.
Video Signal Check
4 Loosen two hex nuts.
• VIDEO : OK
1
1
2
2
4
AP-8
1
3
1
Make sure the follows on Self Test menu.
• Adjust GAIN, A/C SEA and A/C RAIN so
that the readout for FE-DATA 1 and 2 are
less than 1,000.
D-2
Y. Hatai
C
B
A
1 2
*3
MJ-A6SPF
WHT
BLK
YEL
GRN
DPYC-1.5 *1
MJ-A6SPF0003,5m
MJ-A6SPF0009,10m
MJ-A6SPF0012,5/10m
シロ
φ6.5
クロ
キ
ミドリ
EXTERNAL BUZZER
OP03-21
2C2V
03S9298,5m,φ8 *2
チャ BRN
アカ RED
ダイ ORG
キ YEL
ミドリ GRN
アオ BLU
見張警報外付ブザー
副指示器
REMOTE DISP.
FMD-811, ETC.
*1
IV-2.0
APPROVED
CHECKED
DWG No.
C3441-C01- M
MASS
Y. Hatai
kg
TAKAHASHI.T
E. MIYOSHI
SPARE 22
21
16
6
*4
2C2V
RED
YEL
GRY
ORG
GRN
NAME
名称
TITLE
SPARE
RW-4747
相互結線図
MARINE RADAR
INTERCONNECTION DIAGRAM
MODEL 1832
船舶用レーダー
*5
U2B3 IF-9214
*3
NH13P J611
1 TUNING-IND.
2 NC
3 NC
4 NC
5 MBS-L
6 NC
7 NC
8 GND
9 NC
10 NC
11 GND
12 VIDEO
13 TUNING-CONT
*3 U2B2 MD-9206
VH9P J801
1 +12V
2 +12V
3 GND
4 -12V
5 -12V
6 TX-TRIG.
7 P/L-A
8 P/L-B
9 NC
*3
VH4P J823
1 B.P.
2 MOTOR(+)
3 HD.
4 MOTOR(-)
空中線部
RSB-0071
ANTENNA UNIT
4
FURUNO ELECTRIC CO., LTD.
WHT
WHT/BLU(B)
BLK
PNK(B)
03-136-6001-0
アカ
キ
ハイ
24
GND
GND
VIDEO
TUNING-CONT
ダイ
ミドリ
3
18
シロ
シロ/アオ(太)
クロ
モモ(太)
MJ-B24LPF0002,10/15/20/30m,φ11
(RW-8577,17C+2C2V,MAX.30m)
シロ/ダイ(太) WHT/ORG(B)
シロ/チャ(太) WHT/BRN(B)
シロ/アカ(太) WHT/RED(B)
シロ/ミドリ(太)WHT/GRN(B)
シロ/クロ(太) WHT/BLK(B)
チャ
BRN
ムラサキ
PPL
アオ
BLU
MBS-L
TUNING-IND.
Jan. 15, '05
SCALE
3
*3
DJ-1 MJ-B24LPF
10
+12V
+12V 11
GND 20
-12V 14
-12V 15
TX-TRIG. 2
P/L-A 8
P/L-B 7
(AC SEA) 4
(AC RAIN) 19
EXT TRIG(+5V) 23
B.P. 9
MOTOR(+) 1
H.P. 17
MOTOR(-) 5
RDP-118
DRAWN
NH8P J105
1 GND
2 TRU-HD
3 GND
4 GP-BP
5 GND
6 OP-TRIG.
7 GND
8 OP-VIDEO
NH3P J109
1 +12V
2 GND
3 EXT-BUZZER
U1B 03P9369
指示器
DISPLAY UNIT
*3
12-32VDC
5A:24/32V
MJ-A3SPF J1351
10A:12V
1 (+)
シロ WHT
2 (-)
クロ BLK
3 GND
2
NMEA1
J1352
航法装置
1 TX1-H
NAV EQUIPMENT
2 TX1-C
(NMEA0183)
3 RX1-H
4 RX1-C
5 NC
6 GND
MJ-A6SPF0003,5m
HDG
*3
MJ-A6SPF0007,10m
A-Dコンバータ
MJ-A6SPF J1353
MJ-A6SPF0009,10m
A-D CONVERTER
1 DATA-H
シロ WHT
AD-100
φ6.5
2 DATA-C
クロ BLK
選択 SELECT
3 CLK-H
キ YEL
4 CLK-C
ミドリ GRN
方位指示器
5 NC
HEADING SENSOR
6 GND
PG-1000
MJ-A6SPF0003,5m
*3 NMEA2
MJ-A6SPF0009,10m
魚群探知機
MJ-A6SPF J1354
MJ-A6SPF0012,5/10m
1 TX2-H
ECHO SOUNDER
シロ WHT
φ6.5
2 TX2-C
(NMEA0183)
クロ BLK
3 RX2-H
キ YEL
4 RX2-C
ミドリ GRN
5 NC
6 GND
*1
IV-2.0
整流器 (+)(-)
24V
RECTIFIER
PR-62
*2
5 6
*1
DPYC-1.5
03S9332,5m,φ10
(VV-S 2.0x2C)
注記
*1)造船所手配。
*2)オプション。
*3)工場にて取付済み。
*4)コネクタのクランプでアースする。
*5)空中線部のシールドは完全にアースする。
NOTE
*1. SHIPYARD SUPPLY.
*2. OPTION.
*3. FITTED AT FACTORY.
*4. GROUND THRU CONNECTOR CLAMP.
*5. GROUND EFFECTIVELY AT SCANNER UNIT.
ジャイロ
GYRO
100/110/115/
220/230 VAC
1φ,50/60Hz
12-32 VDC
1
S-1
C
B
A
*3
MJ-A6SPF
WHT
BLK
YEL
GRN
DPYC-1.5 *1
MJ-A6SPF0003,5m
MJ-A6SPF0009,10m
MJ-A6SPF0012,5/10m
シロ
φ6.5
クロ
キ
ミドリ
EXTERNAL BUZZER
OP03-21
2C2V
03S9298,5m,φ8 *2
チャ BRN
アカ RED
ダイ ORG
キ YEL
ミドリ GRN
アオ BLU
見張警報外付ブザー
副指示器
REMOTE DISP.
FMD-811, ETC.
*1
IV-2.0
APPROVED
CHECKED
DWG No.
C3442-C01- P
MASS
Y. Hatai
kg
TAKAHASHI.T
E. MIYOSHI
SPARE 22
21
16
6
*4
2C2V
RED
YEL
GRY
ORG
GRN
NAME
名称
TITLE
SPARE
RW-4747
相互結線図
MARINE RADAR
INTERCONNECTION DIAGRAM
MODEL 1932/1942
船舶用レーダー
*5
*3
NH13P J824
1 TUNING-IND.
2 NC
3 NC
4 NC
5 MBS-L
6 NC
7 NC
8 GND
9 NC
10 NC
11 GND
12 VIDEO
13 TUNING-CONT
*3 U2B6 03P9249
VH9P J801
1 +12V
2 +12V
3 GND
4 -12V
5 -12V
6 TX-TRIG.
7 P/L-A
8 P/L-B
9 NC
*3
VH4P J823
1 B.P.
2 MOTOR(+)
3 HD.
4 MOTOR(-)
空中線部
RSB-0062
ANTENNA UNIT
4
FURUNO ELECTRIC CO., LTD.
WHT
WHT/BLU(B)
BLK
PNK(B)
03-136-6002-1
アカ
キ
ハイ
24
GND
GND
VIDEO
TUNING-CONT
ダイ
ミドリ
3
18
シロ
シロ/アオ(太)
クロ
モモ(太)
MJ-B24LPF0002,10/15/20/30m,φ11
(RW-8577,17C+2C2V,MAX.30m)
シロ/ダイ(太) WHT/ORG(B)
シロ/チャ(太) WHT/BRN(B)
シロ/アカ(太) WHT/RED(B)
シロ/ミドリ(太)WHT/GRN(B)
シロ/クロ(太) WHT/BLK(B)
チャ
BRN
ムラサキ
PPL
アオ
BLU
MBS-L
TUNING-IND.
Jan. 15, '05
SCALE
3
*3
DJ-1 MJ-B24LPF
10
+12V
+12V 11
GND 20
-12V 14
-12V 15
TX-TRIG. 2
P/L-A 8
P/L-B 7
(AC SEA) 4
(AC RAIN) 19
EXT TRIG(+5V) 23
B.P. 9
MOTOR(+) 1
H.P. 17
MOTOR(-) 5
RDP-118
DRAWN
NH8P J105
1 GND
2 TRU-HD
3 GND
4 GP-BP
5 GND
6 OP-TRIG.
7 GND
8 OP-VIDEO
NH3P J109
1 +12V
2 GND
3 EXT-BUZZER
U1B 03P9369
指示器
DISPLAY UNIT
*3
12-32VDC
5A:24/32V
MJ-A3SPF J1351
10A:12V
1 (+)
シロ WHT
2 (-)
クロ BLK
3 GND
2
NMEA1
J1352
航法装置
1 TX1-H
NAV EQUIPMENT
2 TX1-C
(NMEA0183)
3 RX1-H
4 RX1-C
5 NC
6 GND
MJ-A6SPF0003,5m
HDG
*3
MJ-A6SPF0007,10m
A-Dコンバータ
MJ-A6SPF J1353
MJ-A6SPF0009,10m
A-D CONVERTER
1 DATA-H
シロ WHT
AD-100
φ6.5
2 DATA-C
クロ BLK
選択 SELECT
3 CLK-H
キ YEL
4 CLK-C
ミドリ GRN
方位指示器
5 NC
HEADING SENSOR
6 GND
PG-1000
MJ-A6SPF0003,5m
*3 NMEA2
MJ-A6SPF0009,10m
魚群探知機
MJ-A6SPF J1354
MJ-A6SPF0012,5/10m
1 TX2-H
ECHO SOUNDER
シロ WHT
φ6.5
2 TX2-C
(NMEA0183)
クロ BLK
3 RX2-H
キ YEL
4 RX2-C
ミドリ GRN
5 NC
6 GND
*1
IV-2.0
1 2
5 6
整流器 (+)(-)
24V
RECTIFIER
RU-3423 *2
*1
DPYC-1.5
03S9332,5m,φ10
(VV-S 2.0x2C)
注記
*1)造船所手配。
*2)オプション。
*3)工場にて取付済み。
*4)コネクタのクランプでアースする。
*5)空中線部のシールドは完全にアースする。
NOTE
*1. SHIPYARD SUPPLY.
*2. OPTION.
*3. FITTED AT FACTORY.
*4. GROUND THRU CONNECTOR CLAMP.
*5. GROUND EFFECTIVELY AT SCANNER UNIT.
ジャイロ
GYRO
100/110/115/
220/230 VAC
1φ,50/60Hz
12-32 VDC
1
S-2