Furuno FAR-2827W User manual

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MARINE RADAR/ARPA
FAR-2827W/2837SW
Installation Manual Comply with MSC.192(79)
SAFETY INSTRUCTIONS....................... i
EQUIPMENT LISTS .............................. iii
SYSTEM CONFIGURATION ................. vi
1. MOUNTING ..................................... 1-1
1.1 Antenna Unit .........................................1-1
1.2 Monitor Unit.........................................1-12
1.3 Control Unit .........................................1-16
1.4 Processor Unit ....................................1-21
1.5 Transceiver Unit ..................................1-22
1.6 Power Supply Unit ..............................1-23
2. WIRING ...........................................2-1
2.1 Interconnection .....................................2-1
2.2 Antenna Unit .........................................2-3
2.3 Transceiver Unit ..................................2-12
2.4 Monitor Unit.........................................2-23
2.5 Processor Unit ....................................2-24
2.6 Changing AC Power Specification of
Processor Unit ...................................2-29
2.7 Power Supply Unit ..............................2-30
3. SETTING AND ADJUSTMENT ....... 3-1
3.1 DIP Switch Setting ................................3-1
3.2 Initializing Tuning ..................................3-2
3.3 Heading Alignment ............................... 3-3
3.4 Adjusting Sweep Timing ....................... 3-6
3.5 Suppressing Main Bang ....................... 3-7
3.6 Other Settings ...................................... 3-8
3.7 Dual Radar Display (non IMO-type only) .
...................................................... 3-16
4. INSTALLING OPTIONAL
EQUIPMENT........................................4-1
4.1 Gyro Converter GC-10 ......................... 4-1
4.2 Memory Card Interface Unit ................. 4-9
4.3 DVI-RGB Conversion Kit (for VDR
connection)........................................ 4-12
4.4 BNC Connector Converter ................. 4-15
4.5 Junction Box RJB-001........................ 4-16
5. INPUT/OUTPUT DATA ....................5-1
INSTALLATION MATERIALS,
ACCESSORIES, SPARE PARTS ....... A-1
OUTLINE DRAWINGS ....................... D-1
INTERCONNECTION DIAGRAMS..... S-1

The paper used in this manual
is elemental chlorine free.
・FURUNO Authorized Distributor/Dealer
9-52 Ashihara-cho,
Nishinomiya, 662-8580, JAPAN
Telephone : [phone]
Fax
:
[phone]
A : JUN 2004
.
Printed in Japan
All rights reserved.
K : APR . 15, 2011
Pub. No. IME-35270-K
*00014869418**00014869418*
(HIMA ) FAR-2827W/2837SW
*
00014869418
*
*
00014869418
*
* 0 0 0 1 4 8 6 9 4 1 8 *

i
Mandatory Action
Prohibitive Action
WARNING
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided,
can result in minor or moderate injury.
Warning, Caution
SAFETY INSTRUCTIONS
The operator and installer must read the applicable safety instructions before attempting to
install or operate the equipment.
WARNING
Radio Frequency Radiation Hazard
The radar antenna emits electromagnetic radio frequency (RF) energy which can be
harmful, particularly to your eyes. Never look directly into the antenna aperture from a
close distance while the radar is in operation or expose yourself to the transmitting
antenna at a close distance.
Distances at which RF radiation levels of 100, 50 and 10 W/m are given in the table
below.
Note: If the antenna unit is installed at a close distance in front of the wheel house,
your administration may require halt of transmission within a certain sector of antenna
revolution.This is possible. Ask your FURUNO representative or dealer to provide
this feature.
*XN20AF: 6.5 ft XN24AF: 8 ft SN36AF: 12 ft
Model Transceiver Magnetron Antenna
100W/m250W/m210W/m2
XN-20AF 0.4 m 1.0 m 5.6 m
XN-24AF 0.2 m 0.5 m 3.4 m
FAR-2837SW RTR-082
(S-30 kw) MG5223F SN-36AF -- 0.2 m 1.9 m
FAR-2827W RTR-081A
(X-25 kw) MG5436
2
*
Wear a safety belt and hard hat when working on the antenna unit.
Serious injury or death can result if someone falls from the radar antenna mast.
DANGER

ii
CAUTION
Observe the following compass safe
distances to prevent deviation of a
magnetic compass:
Standard
compass
Antenna Unit
(RSB-103, 25 kw,
X-band, TR-down) 1.15 m 0.70 m
Monitor Unit
(MU-231CR) 1.85 m 1.20 m
Processor
Unit (RPU-013) 1.35 m 0.85 m
Control Unit
(RCU-014) 0.30 m 0.30 m
Control Unit
(RCU-015) 0.95 m 0.60 m
Control Unit
(RCU-016) 0.65 m 0.45 m
Steering
compass
Antenna Unit
(RSB-104/105, 30 kw,
S-band, TR-down) 1.35 m 0.85 m
Transceiver Unit
(RTR-081A) 2.00 m 1.30 m
Power Supply Unit
(PSU-011)
4.25 m 2.75 m
RJB-001 1.10 m 0.70 m
Switching HUB 1.00 m 0.60 m
CU-200-FAR 0.90 m 0.60 m
0.30 m 0.30 m
Transceiver Unit
(RTR-082)
Be sure that the power supply is
compatible with the voltage rating of
the equipment.
Do not install the monitor unit,
processor unit or control unit where
they may get wet from rain or
water splash.
Fire or damage to the equipment can result
if a different cable is used.
Connection of an incorrect power supply
can cause fire or damage the equipment .
Use only the specified power cable.
Water in the units can result in fire,
electrical shock, or damage the equipment.
Attach securely protective
earth to the ship's body.
The protective earth
(grounding) is required to the
AC power supply to prevent
electrical shock.
Do not open the equipment
unless totally familiar with
electrical circuits and
service manual.
Only qualified personnel
should work inside the
equipment.
WARNING
Construct a suitable service platform
from which to install the antenna unit.
Serious injury or death can result if some-
one falls from the radar antenna mast.
Turn off the power at the mains switch-
board before beginning the installation.
Fire, electrical shock or serious injury can
result if the power is left on or is applied
while the equipment is being installed.
ELECTRICAL
SHOCK
HAZARD
Monitor Unit
(MU-231) 0.85 m 0.55 m

iii
EQUIPMENT LISTS
Standard Supply (For FAR-2827W)
Name Type Code No. Qty Remarks
XN20AF-RSB103 - 24 rpm, 2000 mm w/CP03-19101
Antenna Unit XN24AF-RSB103 - 1 24 rpm, 2400 mm w/CP03-19101
Transceiver Unit RTR-081A - 1 25 kW, X-band
MU-231CR
Monitor Unit MU-231 1
Processor Unit RPU-013 - 1
Power Supply
Unit
PSU-011 1 Russian flag vessel only
RCU-014 Standard type
Control Unit RCU-015 - 1
Trackball type
CP03-25700 000-080-435 For 15 m signal cable, RW-9600
CP03-25710 000-080-436 For 30 m signal cable, RW-9600
CP03-25730 000-082-191 For 40 m signal cable, RW-9600
CP03-25720 000-080-437
1
For 50 m signal cable, RW-9600
CP03-27502 008-540-140 1 For antenna unit
CP03-25800 000-080-434 1 For monitor unit
CP03-27501 008-540-200 1 For transceiver unit
Installation
Materials
CP03-25602 008-535-940 1 For processor unit (AC set)
Rectangular
waveguide
installation
materials
CP03-16400 000-086-743 1
CP03-16410 000-086-744 20 m, w/CP03-16411
CP03-16420 000-086-745 30 m, w/CP03-16411
Rectangular
guide installation
materials CP03-16430 000-086-746
1
50 m, w/CP03-16411
For flexible
waveguide
FP03-09810 008-536-010 1 For monitor unit
FP03-09850 008-535-610 For RCU-014
Accessories
FP03-09860 008-535-690 1 For RCU-015
SP03-12501 008-485-360 For antenna unit
SP03-14401 008-536-990 For monitor unit (AC spec)
SP03-14404 008-535-910 For processor unit 100 VAC set
Spare Parts
SP03-14405 008-535-920
1
For processor unit 220 VAC set

iv
Standard Supply (FAR-2837SW)
Name Type Code No. Qty Remarks
SN30AF-RSB104 - 21 rpm, 3000 mm
SN30AF-RSB105 - 26 rpm, 3000 mm
SN36AF-RSB104 - 21 rpm, 3600 mm
Antenna Unit
SN36AF-RSB105 -
1
26 rpm, 3600 mm
Transceiver Unit RTR-082 - 1 30 kW, S-band
MU-231CR 1 AC spec only
Monitor Unit MU-231
Processor Unit RPU-013 - 1
Power Supply Unit PSU-011 1 Russian flag vessel only
RCU-014 Standard type
Control Unit RCU-015 - 1
Trackball type
CP03-25800 000-080-434 1 For monitor unit
CP03-25602 008-535-940 1 For processor unit, AC set
CP03-27601 008-540-570 1 For transceiver unit
CP03-25700 000-080-435 For 15 m signal cable, RW-9600
CP03-25710 000-080-436 For 30 m signal cable, RW-9600
CP03-25730 000-082-191 For 40 m signal cable, RW-9600
CP03-25720 000-080-437
1
For 50 m signal cable, RW-9600
Installation Materials
CP03-27602 008-540-520 1 For antenna unit
CP03-14900 000-086-325 Coax. Cable LHPX-20DASSY (L=20) (20
m), Converter PA-5600, CP03-13948
Coaxial Cable
Installation materials CP03-14910 000-086-326
1 Coax. Cable LHPX-20DASSY (L=30) (30
m), Converter PA-5600, CP03-13948
FP03-09810 008-536-010 1 For monitor unit
FP03-09850 008-535-610 For RCU-014
FP03-09860 008-535-690 1 For RCU-015
Accessories
FP03-10101 008-538-730 1 For antenna unit
SP03-14404 008-535-910 For processor unit 100 VAC set
SP03-14405 008-535-920 1 For processor unit 220 VAC set
Spare Parts
SP03-14401 008-536-990 1 For monitor unit (AC spec)
Optional Equipment
Name Type Code No. Remarks
Gyro Converter GC-10-2 000-080-440 See chapter 4.
PM-31 - Mandatory for IMO radar (2827W)
Performance Monitor PM-51 -
Mandatory for IMO radar (2837SW)
RU-1803 000-030-420 Converts 440 VAC to 100 VAC,
For processor unit
RU-3305 000-030-448 Converts 110/115/220/230 VAC to
100 VAC, de-icer
RU-5693 000-030-456 Converts 110 VAC to 220 VAC,
2837SW only
RU-6522 000-030-410 Converts 220 VAC to 200 VAC,
2837SW only
Transformer Unit
RU-5466-1 000-030-453 Converts 440 VAC to 220 VAC,
2837SW only

v
External Buzzer OP03-21 000-030-097
Control Unit RCU-016 000-080-299 Remote type, w/FP03-09860
RAM Card 00RAM08MC-005 004-376-740 8 MB
OP03-180-1 008-545-590 Assembled in factory.
OP03-180-2 008-536-070 Assembled in field, see CH 4.
OP03-180-3 008-545-610 For console, assembled in factory.
DVI-RGB Converter Kit
OP03-180-4 008-545-600 For console, assembled in field.
XH10P-W-6P L=20M 000-149-748 For control unit, 20 m
XH10P-W-6P L=30M 000-149-749 For control unit, 30 m
S03-9-5 008-206-640 For external radar, 5 m, 8-8P
S03-9-10 008-206-650 For external radar, 10 m, 8-8P
S03-9-15 008-209-160 For external radar, 15 m, 8-8P
XH10P-W-5P-A L=10M 000-149-050 For remote control, 10 m
XH10P-W-5P-A L=20M 000-149-051 For remote control, 20 m
XH10P-W-5P-A L=30M 000-149-052 For remote control, 30 m
Cable Assy.
DVI-D/D S-LINK 10M 000-150-200 For monitor, 10 m
CP03-28900 000-082-658 FR-FTPC-CY 10 m, connector
CP03-28910 000-082-659 FR-FTPC-CY 20 m, connector
LAN Cable Kit CP03-28920 000-082-660 FR-FTPC-CY 30 m, connector
Accessories FP03-09830 008-536-020 Hanger assy. for MU-231CR
Hand Grip FP03-09840 008-535-570 For monitor unit
Dust Cover 03-163-2101 100-307-270 For MU-231CR
Hood FP03-11000 008-571-680 For MU-231CR
Clamp Plate OP03-182 008-535-620 For RCU-014
FP03-09870 008-535-630
Flush Mount Kit OP03-198 001-008-050 For control unit RCU-014/015/016
BNC Connector Converter DSUB-BNC-1 000-148-528 For VDR
Junction Box RJB-001 - For more 100 m antenna cable
Switching Hub HUB-100 -
OP03-184 008-535-650 For RCU-014 and MU-231CR
Coupling Pedestal OP03-185 008-535-660 For RCU-014
Desktop Mount Kit FP03-10201 008-539-530 For CU-200
Console Mount Kit FP03-10202 008-539-540 For CU-200
H-type Waveguide Clamp CP03-00600-W 008-198-420 For FAR-2827W
Waveguide Drain 03-009-0360 300-903-600 For FAR-2827W
E-bend Waveguide RWA-1030 B-107 310-100-140 For FAR-2827W
Waveguide Twist RWA-1050 C-109 310-100-180 For FAR-2827W
Rectangular Guide Clamp OP03-148 008-477-540 For FAR-2827W
FR-9 Rectangular Guide Tool OP03-123 008-448-870 For FAR-2827W
FR-9 Electric Tool 03S9199 000-805-737 For FAR-2827W
FR-9 Termination FR-9000 000-805-741
000X5-01 000-879-234
000X6-01 000-879-235
Thru-Deck Cable Gland 000X7-01 000-879-236
Deck-Thru Cable Gland CP03-00702 008-197-350 For FAR-2837SW
Waveguide clamp 03-011-3228 100-049-620 For FAR-2837SW
Slim Hood FP03-11010 001-033-140 For MU-231CR display unit

vi
SYSTEM CONFIGURATION
FAR-2827W
Processor Unit
RPU-013
Navigator IEC-61162-1 Serial Data*
2
(Input/Output)
IEC-61162-1 Serial Data
(Input)
Speed Log
Gyro Compass
AIS
Switching HUB HUB-100
Track Control Unit
: Option
: Dockyard supply
: Standard
AD-100
Memory Card
Interface Unit
CU-200-FAR
VDR
External Monitor
Sub Display
Alarm*
4
Monitor Unit
MU-231CR
or
MU-231
Control Unit
RCU-014
(Standard)
or
RCU-015
(Trackball)
Control Unit
RCU-016
(Remote)
XN20AF-RSB-103
XN24AF-RSB-103
Antenna Unit
Gyro Converter
GC-10
Performance Monitor
RJB-001*
1
100-230 VAC
Transceiver unit
RTR-081A
Waveguide
WRJ-9 or FR-9
RU-3305
RJB-001*
1
Category of Units
Antenna unit: Exposed to weather
All other units: Protected from weather
Step or synchro signal
IEC-61162-2
*1 When length of antenna cable is more than 100 m.
*2 For IMO spec, IEC-61162-1 Edition 2 is required.
*3 Russian flag vessels only.
*4 Contact output for Alarm
(Load current) 120 mA, (Polarity) No.1/2:Normally Close, No.3/4: Normally Open
Serial I/O for alarm is also possible, which complies with IEC 61162-1.
(For de-icer)
Transformer Unit
RU-1803
Power Supply Unit*
3
PSU-011
1)
2)
3)
*5 This monitor has been approved by the IMO (CAT1). If a different monitor is to
be used, its effective diameter must meet the applicable Category requirements
(effective diameter 320 mm or higher). Refer to its operator's manual for details.
*5
1) Connect the EPFS which is approved in accordance with the requirements of the IMO in
resolution MSC.112(73) is used.
2) Connect the SDME which is approved in accordance with the requirements of the IMO
in resolution MSC.96(72) is used.
3) Use the gyrocompass having an update rate that is adequate for the ship’s rate of turn.

vii
FAR-2837SW
Processor Unit
RPU-013
Navigator
IEC-61162-1 Serial data *2
(Input/output)
IEC-61162-1 Serial data
(Input)
Speed Log
Gyro Compass
AIS
Switching HUB HUB-100
Track control unit
: Option
: Shipyard Supply
: Standard Supply
AD-100
Memory Card
Interface Unit
CU-200-FAR
VDR
External Monitor
Sub Display
Alarm
*
5
Control Unit
RCU-014
or
RCU-015
Remote Controller
RCU-016
Antenna Unit
Gyro Converter
GC-10
Performance
Monitor
RJB-001 *
1
100-230 VAC
SN30AF/SN36AF
Transceiver Unit
RTR-082
RU-6522
RU-5693
RU-5466-1
Coaxial cable CX-20DF
or
Waveguide WRJ-3
RSB104
RSB105
RJB-001 *
1
*
4
*
4
*
4
Category of Units
Antenna Unit: Exposed to weather
All other units: Protected from weather
*1 When length of antenna cable is more than 100 m.
*2 For IMO spec, IEC-61162-1 Edition 2 is required.
*3 Russian flag vessels only.
*4 Not available with HSC spec.
*5 Contact output for Alarm
(Load current) 120 mA, (Polarity) No.1/2:Normally Close, No.3/4: Normally Open
Serial I/O for alarm is also possible, which complies with IEC 61162-1.
Step or synchro signal
IEC-61162-2
RU-3305
(For de-icer)
AC spec
Transformer Unit
RU-1803
Power Supply Unit*3
PSU-011
1)
2)
3)
*6 This monitor has been approved by the IMO (CAT 1). If a different monitor is to be used,
its effective diameter must meet the applicable Category requirements (effective diameter
320 mm or higher). Refer to its operator's manual for details.
Monitor Unit
MU-231CR
or
MU-231
*6
1) Connect the EPFS which is approved in accordance with the requirements of the IMO in
resolution MSC.112(73) is used.
2) Connect the SDME which is approved in accordance with the requirements of the IMO
in resolution MSC.96(72) is used.
3) Use the gyrocompass having an update rate that is adequate for the ship’s rate of turn.

viii
About the category sticker
This radar meets the requirements in IEC62388 (Marine navigation and radio
communication equipment and systems – Shipborne radar – Performance requirements,
method of testing and required test results).
Check the appropriate box on the sticker which is pre-attached on the processor unit.,
according to your radar’s specification. Refer to the table shown below to confirm your
category.
Category Radar type Antenna rotation speed
CAT 1 FAR-2817, FAR-2827, FAR-2837S, FAR-2827W,
FAR-2837SW Normal speed
CAT 1H FAR-2817, FAR-2827, FAR-2837S HSC
CAT 2 FR-2117, FAR-2117-BB, FAR-2127,
FAR-2127-BB, FAR-2137S, FAR-2137S-BB Normal speed
CAT 2H FAR-2117, FAR-2117-BB, FAR-2127,
FAR-2127-BB, FAR-2137S, FAR-2137S-BB HSC

1-1
1. MOUNTING
NOTICE
Do not apply paint, anti-corrosive sealant
or contact spray to coating or plastic
parts of the equipment.
Those items contain organic solvents that
can damage coating and plastic parts,
especially plastic connectors.
1.1 Antenna Unit
Mounting 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 in an elevated position to permit
maximum target visibility.
• A line of sight from the antenna unit to the bow of the ship should hit the surface of the
sea in not more than 500 m or twice the ship’s length, depending which value is smaller,
for all load and trim conditions.
less than 500 m or twice the ship’s length
• Mount the antenna unit so that any blind sectors caused by objects (mast, etc.) are kept
to a minimum. No blind sector should exist in arc of the horizon from right ahead to 22.5°
aft of the beam to either side (see Figure 1 below). Also, individual blind sectors of more
than 5°, or the total arc of both blind sectors of more than 20°, should not occur in the
remaining arc (Figure 2). Note that any two blind sectors separated by 3°or less are
regarded as one sector.
Figure 1 Figure 2
a, b, c: less than 5 respectively
a+b+c+... : less than 20
22.5
22.5
less than 3
270 90

1. MOUNTING
1-2
• Install the antenna unit safely away from interfering high-power energy sources and other
transmitting radio antenna.
• Keep the lower edge of the antenna unit (antenna radiator) above the safety rail by 500
mm or more.
• Two antenna units should be mounted as below:
more than 20
more
than 1 m
• No funnel, mast or derrick should be within the vertical beamwidth of the antenna unit in
the bow direction, especially zero degrees ±5°, to prevent blind sectors and false echoes
on the radar picture.
• It is rarely possible to place the antenna unit where a completely clear view in all
directions 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.
• Locate a direction finder antenna clear of the antenna unit to prevent interference to the
direction finder. A separation of more than two meters is recommended.
• A magnetic compass will be affected if the antenna unit is placed too close to the
magnetic compass. Observe the compass safe distances on page ii to prevent deviation
of the magnetic compass.
• Do not paint the radiator aperture, to ensure proper emission of the radar waves.
• The antenna base is made of cast aluminum. To prevent electrolytic corrosion of the
antenna base, use the seal washers and corrosion-proof rubber mat and ground the unit
with the ground wire (supplied).
• 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.
• Leave sufficient space around the unit for maintenance and servicing. See the antenna
unit outline drawing for recommended maintenance space.

1. MOUNTING
1-3
1.1.1 FAR-2827W antenna unit
Assembling the antenna unit
The antenna unit consists of the antenna radiator and the antenna unit chassis, and they
are packed separately. Fasten the antenna radiator to the antenna unit chassis as follows:
1. Attach two guide pins (supplied as installation) materials to the underside of the antenna
radiator.
2. Remove the waveguide cap from the radiator bracket. The cap may be discarded.
3. Coat the waveguide flange with anticorrosive sealant as shown below.
Anticorrosive sealant
10 mm O-ring Waveguide cap
5 mm
Hole for
a guide pin Hole for
a guide pin
Coating the waveguide flange with anticorrosive sealant
4. Coat fixing holes for the antenna radiator with anticorrosive sealant.
5. Grease the O-ring and set it to the O-ring groove of the radiator flange.
6. Set the antenna radiator to the radiator bracket.
7. Coat hex bolts M8 x 40 with anticorrosive sealant and use them to loosely fasten the
antenna radiator to the antenna unit chassis.
8. Remove two guide pins (inserted at step 1), and then tighten fixing bolts.
CAUTION
Be sure to remove the guide pins.
Injury may result if the guide pins loosen
and fall.

1. MOUNTING
1-4
O-ring
Radiator bracket
Waveguide
Antenna radiator
Hex bolt (M8x40), 8 pcs.
Fastening the radiator to the radiator bracket
Coating the waveguide flange with silicone sealant
1. Do not coat O-ring with silicone sealant; use grease.
2. Clean the surface of the waveguide flange, if necessary. Evenly coat the waveguide
flange with silicone sealant as shown in the illustration below.
O-ring
O-ring
Apply silicone
sealant here.
Apply silicone
sealant here.
Choke
groove
Evenly coat the waveguide flange with silicone
sealant. Apply sealant sparingly; it leaks out
slightly when the fixing bolts are tightened.
Be sure no sealant contacts the choke groove
and waveguide.
Coating the waveguide flange with silicone sealant

1. MOUNTING
1-5
Fastening the antenna unit to the mounting platform
The antenna unit may be assembled before hoisting it to the mounting platform. However,
do not lift the antenna unit by the radiator. Always hold the unit by its housing. When using a
crane or hoist, lift the unit by the hoist rings which should be fastened to the bolt fixing
covers of the antenna housing.
NOTICE
NO!
- To hoist antenna unit aboard vessel, attach ropes to lifting fixtures and hoist unit with crane.
- To remove load from radiator when hoisting, the length of the rope between the radiator base
and the hook on the should be at least 130 cm.
- To keep the rope away from the radiator, turn the radiator and chassis approx. 30 degrees as
shown below.
- Be sure to remove the lfiting fixtures after hoisting is completed.
130cm
Approx.
30 deg.
Lifting fixture
Lifting fixture
Crane
(Top view)
NO!
Lifting
fixture
1. Construct a suitable mounting platform referring to the outline drawing at the end of this
manual.
2. Drill four mounting holes of 15 mm diameter and one cable entry hole of about 50 mm
diameter in the mounting platform.
3. Lay the rubber mat (supplied) on the mounting platform.
4. Place the antenna unit on the rubber mat, orienting the unit so the antenna switch on it is
facing the ship’s bow.
Antenna switch
Antenna unit, front view
5. Fasten the antenna unit to the mounting platform with M12x60 hex bolts, nuts, flat
washers and seal washers.

1. MOUNTING
1-6
6. Using hex bolt (M6x25), nut (M6) and flat washer (M6), establish the ground system on
the mounting platform as shown below. The location should be within 340 mm of the
ground terminal on the antenna unit. Connect the ground wire (RW-4747, 340 mm,
supplied) between the grounding point and ground terminal on the antenna unit. Coat
the entire ground system with silicone sealant (supplied).
Anticorrosive sealant
Seal washer
Rubber mat
Anticorrosive
sealant
Groundwire Hexbolt
Hexbolt weldedto
ship'ssuperstructure
Hexnut
Hexnut
Spring washer
Spring washer
Spring washer
OR
Anticorrosive
sealant
Flatwasher
Anticorrosivesealant
Ground
terminal
Ground
wire
Antennabase
Groundwire
How to mount the antenna unit

1. MOUNTING
1-7
1.1.2 FAR-2837SW antenna unit
Installation precaution for S-band antenna unit
If an S-band antenna unit is mounted near the end of a platform to provide sufficient rotation
clearance for the radiator, the antenna unit, because of its weight, swings up and down by
ship’s vibration and rolling, exerting excessive levels of stress at the base of the radiator,
which can damage the radiator. To prevent this, relocate the antenna unit, or if relocation is
not possible, reinforce the platform.
Mounting of S-band antenna unit

1. MOUNTING
1-8
Antenna unit assembling
The antenna radiator and the antenna housing are shipped in separate packages.
Assemble them as below. The antenna unit may be assembled before hoisting it to the
mounting platform. However, do not lift the antenna unit by the radiator.
Antenna unit assembling procedure
1. Screw the guide pins (2 pcs.) in the radiator.
2. Remove the protective cap from the choke guide.
3. Grease O-ring and set it to the groove of the choke guide.
4. Place the radiator on the radiator bracket. (Radiator direction is shown by the logo on
the bracket. If reversely oriented the radiator cannot be set to the bracket.)
5. Loosely fix the radiator to the radiator bracket with hex. bolts (M10x25), spring washers
and flat washers.
6. Remove the guides pins and tighten hex. bolts.
Antenna radiator
Spring washer,
flat washer,
10 pcs. each,
M10x25
Protective cap
Radiator bracket
Choke guide
O-ring
(JIS B2401-
1A-G60, 2 pcs)
Guide pin (2 pcs.)
Instruction label for antenna
aperture direction
Assembling the radiator bracket
CAUTION
Be sure to remove the guide pins.
Injury may result if the guide pins loosen
and fall.

1. MOUNTING
1-9
How to lift antenna unit
1. Fix the antenna radiator to the antenna unit chassis.
2. Attach the lifting fixtures and collars as shown in figures in below.
3. Position the radiator as shown in figure below and arrange the ropes A
=
2.0 m and B
=
1.8 m.
(M12x20)
Attachment of lifting fixtures, collar and lopes

1. MOUNTING
1-10
Fastening the antenna unit to the mounting platform
See the figure on the next page for antenna unit mounting.
1. Referring to the antenna outline drawing, drill four bolt holes (15 mm diameter) in the
radar mast platform or the deck.
a) The diameter of the mast for fixing the antenna unit platform must be over 15 mm.
b) The thickness of the antenna unit platform must be over 15 mm.
c) The reinforcement rib must be installed diagonally as shown below.
Installation of reinforcement ribs
2. Place the corrosion-proof rubber mat (supplied) on the mounting platform.
3. Hoist the antenna unit as shown on page 1-9 and place it on the rubber mat. Orient the
cable gland toward the ship’s stern (or port, starboard). Remove the lifting fixtures and
collars.
4. Fix the antenna base to the mounting platform with four M12x70 hex. bolts, nuts,
washers and seal washers (supplied).
5. Arrange the grounding terminal at the nearest grounding spot with the M6x25 hex. bolt,
nut and washers (supplied). Then, fix a ground wire (RW-4747, 340 mm) to the terminal.
6. Connect the other end of the ground wire to the earth terminal of the antenna unit.
7. Coat earth terminal and fixing bolts on the antenna unit with silicone sealant (supplied).