Furuno 1763c, 1753c, 1723c, 1733c User Manual
MARINE RADAR
MODEL 1722/1732/1742/1752/1762
MODEL 1722C/1732C/1742C/1752C/1762C
MODEL 1723C/1733C/1753C/1763C
PRINTED IN JAPAN
9-52 Ashihara-cho,9-52 Ashihara-cho,
x
A
A
*00080918302**00080918302*
*00080918302**00080918302*
*IME34940H00**IME34940H00*
Nishinomiya, JapanNishinomiya, Japan
Telephone :Telephone : 0798-65-21110798-65-2111
faxfa
ll rights reserved.
ll rights reserved.
PUB.No.PUB.No. IME-34940-HIME-34940-H
0798-65-42000798-65-4200
::
Printed in JapanPrinted in Japan
Your Local Agent/DealerYour Local Agent/Dealer
IRST EDITION :
IRST EDITION : APR.APR. 20012001
HH :: SEP.SEP. 26,200326,2003
(( TENITENI ))
MODEL1722/C SER.MODEL1722/C SER.
* 0 0 0 8 0 9 1 8 3 0 2 ** 0 0 0 8 0 9 1 8 3 0 2 *
*IME34940H00**IME34940H00*
* I M E 3 4 9 4 0 H 0 0 ** I M E 3 4 9 4 0 H 0 0 *
SAFETY INSTRUCTIONS
WARNING
Do not open the equipment
unless totally familiar with
electrical circuits and
service manual.
ELECTRICAL
SHOCK
HAZARD
Only qualified personnel
should work inside the
equipment.
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 mast.
Construct a suitable service platform
from which to install the antenna unit.
Serious injury or death can result if someone falls from the radar mast.
Turn off the power at the mains switchboard 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.
CAUTION
Ground the equipment to
prevent electrical shock and
mutual interference.
Observe the following compass safe
distances to prevent deviation of a
magnetic compass.
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 and 10 W/m
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.
MODEL
1722/
1722C/
1723C
1732/
1732C/
1733C
1742/1742C
1752/
1752C/
1753C
1762/
1762C/
1763C
2
exist are given in the
Distance to
100 W/m
point
Nil
Nil
Nil
0.15 m
0.20 m
Distance to
2
10 W/m
Worst case
0.50 m
Worst case
0.50 m
Worst case
1.00 m
Worst case
2.00 m
Worst case
3.00 m
point
2
Steering
0.45 m
0.35 m
0.80 m
0.70 m
1.60 m
1.00 m
0.80 m
1722/C series Display unit
1723C series Display unit
1723C antenna
1722/1722C antenna unit
1732/1732C/1733C antenna
1742/C antenna
1752/1752C/1753C antenna
1762/1762C/1763C antenna
Standard
0.65 m
0.55 m
1.30 m
1.25 m 0.85 m
0.90 m
2.10 m
1.50 m
1.00 m
i
TABLE OF CONTENTS
SAFETY INSTRUCTIONS........................................................................................i
EQUIPMENT LISTS..................................................................................................iii
SYSTEM CONFIGURATIONS..................................................................................v
1. MOUNTING...........................................................................................................1-1
1.1 Installation of Display Unit...............................................................................................................1-1
1.2 Mounting of Antenna Unit for MODEL 1722/1722C/1732/1732C/1723C/1733C............................1-4
1.3 Mounting of Antenna Unit for MODEL 1742/1742C/1762/1762C/1752/1752C/1753C/1763C.......1-16
2. WIRING.................................................................................................................2-1
2.1 Standard Wiring...............................................................................................................................2-1
2.2 External Buzzer (OP03-136, option) Connection............................................................................2-4
2.3 How to Connect with PC ...............................................................................................................2-5
3. ADJUSTMENT......................................................................................................3-1
3.1 How to Access to Installation Menu ................................................................................................3-1
3.2 NETWORK SETUP Menu...............................................................................................................3-2
3.3 RADAR SETUP Menu.....................................................................................................................3-4
3.4 Checking Magnetron Heater Voltage..............................................................................................3-8
3.5 Navigation Data Source ..................................................................................................................3-9
3.6 Setting up Data Ports......................................................................................................................3-13
3.7 Remote Controller Setting...............................................................................................................3-15
PACKING LISTS.......................................................................................................A-1
OUTLINE DRAWINGS..............................................................................................D-1
SCHEMATIC DIAGRAMS.........................................................................................S-1
ii
EQUIPMENT LISTS
Standard supply
Name Type Code No. Qty Remarks
RDP-130 - For monochrome model
Disp lay unit
Antenna unit
Remote contro ll er
set
Installation
materials
RDP-131 - For color model (QVGA)
RDP-143 RSB-0087A-070 - 1 For MODEL1722/1722C
RSB-110-070-A - 1 For MODEL1723C
RSB-0071-058 - 1 For MODEL1732/1732C/1733C
XN065AF-RSB-0047-051 - 1 For MODEL1742/1742C
XN10A-RSB-0070-065 - 1 For MODEL1762/1762C/1763C
XN065BF-RSB-0091-069 - 1 For MODEL1752/1752C/1753C
RMC-100 000-089-885 1
CP03-22200 000-089-887 1
CP03-20301 008-440-670 1
CP03-22100 000-089-848
CP03-22110 000-089-849
CP03-22120 000-089-850
CP03-22130 000-089-851
CP03-22140 000-089-852
CP03-18001 008-478-740 1
CP03-22300 000-089-888
CP03-22310 000-089-889
CP03-22320 000-089-900
CP03-22330 000-089-914
CP03-22081 008-522-980 1
CP03-24001 008-526-180 1
CP03-22400 000-089-915
CP03-22410 000-089-916
CP03-22420 000-089-917
CP03-22430 000-089-918
1
For color monitor (VGA)
Remote controll er, vinyl case,
battery, labels
For display unit,
power cable, CP03-22201
For MODEL1722/1722C/1723C,
antenna unit
For MODEL1722/1722C/1723C,
5 m signal cable
For MODEL1722/1722C/1723C,
10 m signal cable
For MODEL1722/1722C/1723C,
1
15 m signal cable
For MODEL1722/1722C/1723C,
20 m signal cable
For MODEL1722/1722C/1723C,
30 m signal cable
For MODEL1732/1732C/1733C,
antenna unit
For MODEL1732/1732C/1733C,
10 m signal cable
For MODEL1732/1732C/1733C,
15 m signal cable
1
For MODEL1732/1732C/1733C,
20 m signal cable
For MODEL1732/1732C/1733C,
30 m signal cable
For MODEL1742/1742C, antenna
unit
For MODEL1752/1752C/1753C,
antenna unit
MODEL1742/1742C/1752/1752C/
1753C, 10 m signal cable
MODEL1742/1742C/1752/1752C/
1753C, 15 m signal cable
1
MODEL1742/1742C/1752/1752C/
1753C, 20 m signal cable
MODEL1742/1742C/1752/1752C/
1753C, 30 m signal cable
iii
Name Type Code no. Qty Remarks
CP03-18401 008-503-360 1
CP03-22901 008-523-690 1
Installation
materials
Accessories FP03-09301 008-522-970 1
Spare parts SP03-13801 000-089-886 1
CP03-22500 000-089-919 1
CP03-22510 000-089-920 1
CP03-22520 000-089-949 1
CP03-22530 000-089-951 1
For MODEL1762/1762C/
1763C, antenna unit
For MODEL1762/1762C/
1763C, antenna radiator, XN10A
For MODEL1762/1762C/1763C,
10 m signal cable
For MODEL1762/1762C/1763C,
15 m signal cable
For MODEL1762/1762C/1763C,
20 m signal cable
For MODEL1762/1762C/1763C,
30 m signal cable
Card remover
Fuses
Optional supply
Name Type Code No. Qty Remarks
RU-3423 000-030-443 1
000-013-484 100 VAC
Rectifier
PR-62
000-013-485 110 VAC
000-013-486 220 VAC
000-013-487
External buzzer OP03-136 000-086-443 1
MJ-A6SPF0014-010 000-144-421 1 1 m, for NavNet
MJ-A6SPF0014-050 000-144-422 1 5 m, for NavNet
MJ-A6SPF0014-100 000-144-423 1 10 m, for NavNet
MJ-A6SPF0014-200 000-144-424 1 20 m, for NavNet
MJ-A6SPF0014-300 000-144-425 1 30 m, for NavNet
MJ-A6SPF0012-050 000-134-424 1 For Navaid
Cable assy
MJ-A6SPF0012-100 000-133-817 1 For Navaid
MJ-A6SPF0003-050 000-117-603 1 w/6p connector, 5 m
MJ-A6SPF0009-100 000-125-236 1 w/6p connector, 10 m
MJ-A7SPF0007-050 000-144-418 1
MJ-A6SPF0007-100 000-125-237 1 For compass, 10 m
MJ-A6SRMD/TM11AP8-005 000-144-463 1 Adapter cable for HUB
Mounting
bracket (1)
OP03-92 008-445-070 1
Mounting
bracket (2)
OP03-93 008-445-080 1
RAM card 00RAM02MC-004 004-371-790 1 2 MB
Chart card - - - Specified when ordering.
Remote
RMC-100 000-089-885 1
controller set
Modification Kit
MODEL 17*2/C-MAP 008-525-200 1 See modification instruction.
for C-map
1742/1742C/1752/1752C/
1762/1762C/1753C/1763C
1722/1722C/
1
1732/1732C
1723C/1733C
230 VAC
w/7P connector, for external
buzzer, PC, NMEA
For
MODEL1732/1732C/1733C
For
MODEL1722/1722C/1723C
E42-00005-x
iv
SYSTEM CONFIGURATIONS
All NavNet products incorporate a “network circuit board” to integrate each NavNet product
on board through an optional LAN cable (Ethernet 10BASE-T). Each NavNet product is
assigned an IP address to enable transfer of images between ot her NavNet products. For
example, video plotter pictures can be transferred to a radar and vice versa. Pictures
received via the NavNet may be adjust ed at the receiving end.
The number of display units which may be installed depen ds on the number of network
sounder connected. For a system incorporating three or more products, a “hub” is required
to process data.
For one network sounder: one radar and three plotters
For two network sounder: one radar and two plott ers
Antenna Unit
(ex. MODEL 1722/1722C/1723C)
GPS receiver
GP-310B/320B
Display Unit
RDP-130 (monochrome)
RDP-131 (color, QVGA)
RDP-143 (color, VGA)
External buzzer
Remote
Controller
RMC-100
Other NavNet unit
(GD-1700 etc.)
*PR-62: MODEL1722/1722C/1732/1732C/1723C/1733C
RU-3423: MODEL1742/1742C/1752/1752C/1762/1762C/1753C/1763C
Network sounder
ETR-6/10N
ETR-30N
12-24 VDC
Echo sounder
Ship's mains
100/110/115/220/230 V AC
1φ, 50/60 Hz
Figure 1 NavNet system
E/S
Navigator
PC
Heading
sensor
Rectifier*
PR-62
RU-3423
v
Antenna Unit
GP-310B/320B
Network Sounder
ETR-6/10N
ETR-30N
(option)
Figure 2 (a) NavNet system, three-unit connection
Antenna Unit
Radar data
Sounder data
Plotter data
HUB
Note: The picture disappears
10 seconds after the NavNet
cable is disconnected from a
"sub" NavNet display unit.
Network Sounder
ETR-6/10N
ETR-30N
(option)
GP-310B/320B
Radar data
Figure 2 (b) NavNet system, two-unit connection
vi
Plotter data
1. MOUNTING
1.1 Installation of Display Unit
The display unit can be installed on a tabletop, on t he overhead or flush mounted in a
console or panel.
Tabletop
Hard Cover
Tabletop, overhead mounting method
When selecting a mounting location f or the display unit keep the following in mind:
• Keep the display unit out of direct sunlight.
• The temperature and humidity should be moderate and stable.
• Locate the unit away from exhaust pipes and vents.
• The m ounting location should be well ventilated.
• Mount the unit where shock and vibration are minimal.
• Keep the unit a way electromagnetic field generating equipment such as m otor, generator.
• For maint enance and checking purposes, leave sufficient space at the sides and rear of
the unit and leave slack in cables.
Overhead
• A magnetic compass will be affected if the display unit is placed too close to the magnetic
compass. Observe the compass safe distances to prevent disturbance to the magnetic
compass; standard: 0.65 m, steering: 0.45 m.
1-1
1.1.1 Mounting procedure
Tabletop, overhead mounting
Follow the procedure below to mount the display unit on a tabletop or the overhead.
1. Fix the hanger by four tapping screw.
2. Screw knob bolts in display unit, set it to hanger, and tighten knob bolts.
3. Attach hard cover to protect LCD.
Display unit
Tapping screws (4 pcs.)
Knob bolts (2 pcs.)
Hanger
Tabletop, overhead mounting of display unit
1-2
Flush mounting
Note: Use supplied pan head screws when the thickness of the bulkhead is from 11 to 14
mm. For bulkhead which exceeds 14 mm in t hickness the length of the pan head
screws should be bulkhead thickness (A) plus 7.3±1.5 mm. Also the length of B
should be max. 7 mm.
B
A
Fixing screw, side view
1. Prepare a cutout in the mounting location whose dimensions are as shown in below.
2. Fix the display unit by six washer head screws M4x20. Refer t o the outline drawing at
back of this manual.
Washer head screws
6-R2.25
Flush mounting of display unit
42
130+0.5
206+0.5
110+0.5
50
186+1
208+1
198+1
97+0.5
1-3
1.2 Mounting of Antenna Unit for MODEL 1722/1722C/1732/1732C/1723C/1733C
1.2.1 Mounting considerations
When selecting a mounting location f or the antenna unit keep in mind the following points.
• Install the antenna unit on the hardtop, radar arch or on a mast on an appropri ate
platform. (For sailboats, a mounting bracket is optional ly available.) It should be placed
where there is a good all-round view with, as far as possible, no part of the ship's
superstructure or rigging intercepting the scann ing beam. Any obstruction will cause
shadow and blind sectors. A mast, for instance, with a diameter considerably less than
the width of the antenna unit, will cause only a small blind sector. However, a horizontal
spreader or crosstrees in the same horizontal plane would be a much more serious
obstruction; place the antenna unit well above or below it.
Antenna unit
Antenna unit
Antenna unit
Ty pical antenna unit placement on sailboat and powerboat
Antenna unit
• In order to m inim ize the chance of picking up electrical interference, avoid where possible
routing the antenna cable near other el ectrical equipment onboard. Also avoid running the
cable in parallel with power cables.
• The compass safe distance of 1.25 (1722/1722C/1723C), 0.9 (1732/1732C/1733C)
meters (standard compass) and 0.85 (1722/1722C/1723C), 0. 7 (1732/1732C/1733C)
meters (steering compass) should be observed to prevent deviation of the magnetic
compass.
1-4
1.2.2 Mounting antenna unit of MODEL 1722/1722C/1723C
1. Remove mounting hardware at the bot tom of the antenna unit; four each of hex bolts
(M10X20), spring washers and flat washers. Save mounting hardware to use it to fix the
antenna unit to the mounting platform later on.
Stern
Cable entry
Bow
Screws
two screws on other side
Flat washer
Spring washer
Hex bolt (M10 x 20)
Antenna unit, showing location of mo unting hardware
2. Construct a platform (wood, steel, or aluminum) of 5-10 mm in thickness referring to the
outline drawing at back of this manual. A mounting bracket for mounting the antenna unit
on a sailboat mast is optionally available. (Refer to page 1-14.) Fasten the platf orm to
the mounting location. Next, position the base so the cable entrance faces the stern
direction.
Note: When drilling holes in the platf orm, be sure they are parallel with the fore and aft line.
3. Using the hex bolts, flat washers and spring washers removed at step 1, fasten the base
to the platform. The torque should be between 19.6-24.5 N•m.
Note: Longer hex bolts (M10X25) are supplied with the installation materials. Use them
instead of the hex bolts removed earlier if the mounting platform thickness is 5–10
mm.
Transceiver
Flat
washer
Spring
washer
module
Hex bolt
(M10 x 25
or M10 x 20)
Antenna base
assy.
5 mm or under :M10x20
5-10mm: M10x25
over 10 mm: local supplied bolts
Platform
Apply silicone sealant.
How to fasten the base to platform
1-5
4. Unfasten four screws to remove the cover. Discard the packing material in the radome.
Snap holder
Remove and discard
the packing material.
Antenna unit, inside view
The mounting base is fitted with a snap holder, which may be used to hang the cover
after removal. Use the hole next to screw hole inside the cover to hang it.
a) Unfasten the snap assy. with the string attached at the holder in the mounting base.
b) Unwind the str ing.
c) Attach the snap to a screw hole on the inside of the cover.
Note: Do not hang any other objects with the snap.
1-6
5. Unfasten the cable of the rotation detector from the cable clamps.
6. Unfasten 11 screws to dismount the shield plate. Discard screw marked with
figure shown below.
Cable clamp
Shield plate
Rotation detector
Caution
in the
Antenna unit, inside view
Caution: Be careful not to pinch the rotation detector cable when remounting the shield
plate.
7. Pass the antenna cable with connector through the gasket and cable clamp, and then
tighten cable gland.
Be sure the shrink tubing on the antenna cable is not covered by the gasket.
1-7
Rubber gasket
Gasket
Cable Gland
Sectional view
Rubber gasket
Mounting base
Antenna unit, inside view
8. Referring to the figure shown below, fasten the shield cable with screw (M4x10) on the
chassis to ground the unit.
Connect
shield cable
Connect 10 pin
here.
connector
here (J811).
Connect 9 pin
connector
here (J801).
1-8
How to connect the antenna cable to the ant enna unit
9. Attach EMI core (supplied) to antenna cable between cable ties. Set the fixing band to
the EMI core.
Fixing band
This bend should be
facing toward you.
Fixing band
10. Referring t o the figure of "How to connect the antenna cable t o t he antenna Unit" on the
previous page connect the 9-pin (J801) and 10-pin (J811) connectors of the antenna
cable to the INT Board.
11. Refasten the shield plate with 10 scre ws. Be sure not to pinch cable from the rotation
detector with the shield plate. See "Caution" in the figure of "Antenna unit, inside view"
on page 1-7, for details.
12. Fasten the fixing band with screw (M4X15; supplied).
Screw(M4X15)
Align bend with
Fixing
band
EMI core
corner of chassis.
How to fix the EMI core
13. Follow the instruct ions on the label inside the mount ing base to secure the snap assy.
14. Confirm that the rubber gasket is properly positioned and that the triangle mark on the
radome cover is aligned with the triangle mark on the mounting base, then tighten the
fixing screws for the cover. Refer to the figure of sectional view on the previous page for
positioning of rubber gasket.
1-9
1.2.3 Mounting antenna unit of MODEL 1732/1732C/1733C
1. Open the antenna unit packing box carefully.
2. Unbolt the four bolts at the base of the radom e to rem ove the radome cover.
Radome cover
Antenna unit
The mounting surface must be parallel with the waterline and provided with five holes (four
fixing holes and one cable ently) 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 t he antenna unit on a sailboat mast is optionally
available. (Refer to page 1-14.) Find the cable entry on the radome base. Next, position
the radome base so the cable entry faces the stern direction. This align ment must be as
accurate as possible.
Ship's bow
Cable
entry
4- 12 Holes
Flat washer
Spring washer
M10 x 25 Hex bolt
Platform
Antenna unit, cover removed
1-10
Antenna base plate
Effective
thread length
25 mm
Flat
washer
Spring
washer
Apply silicone sealant.
M10 x 25
Hex bolt
Gasket
Radome
5 - 10 mm
Platform
How to fasten the radome base to the mounti ng 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 un it 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 two shield covers in the radome.
6. Remove the cable clamping plate by unfast ening four screws and removing a gasket.
Shield cover
Pan head screws
M4x8 7 pcs.
Shield cover
Pan head screws
M4x8 7 pcs.
Pan head screws
M4x8 4 pcs.
Cable clamping plate
Gasket
Antenna unit, inside view
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 wire by
one of the screws of the cable clamping plat e.
9. Attach three connectors of the signal cable to respective ports as shown below.
1-11
to one of the screws
of the cable clamping plate
Signal cable, antenna unit side
J802
J801
9-pin connector:
to J801 on MD-9208
4-pin connector:
to J802 on MD-9208
13-pin connector:
to J611 on IF-9215
1-12
J611
RF unit
10. Attach the EMC core supplied as sho wn below.
Cable
entrance
Cable
clamping plate
EMC core
E04SS251512
(Above cable
clamping
plate)
J801
J1
PTU-9335
J802
J804
J805
J803
Motor
J611
MD9208
J806
J613
IF9215
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
How to position the radome cover
13. Loosely fasten the radome fixing bolts. You will t ighten them after confirming magnetron
heater voltage.
1-13
1.2.4 Mounting the optional mounting bracket
A mounting bracket for fastening the antenna unit to a mast on a sailboat is optionall y
available.
Mounting bracket 1 (for MODEL-1732/1732C/1733C)
Type: OP03-92
Code No.: 008-445-070
Type Code No. Qty
Hex. bolt M4X 12 000-804-725 4
Hex. bolt M8X 20 000-805-707 8
Mounting plate 03-018-9001-0 100-206-740 1
Support plate (1) 03-018-9005-0 100-206-780 1
Support plate (2) 03-018-9006-0 100-206-790 1
Bracket (1) 03-018-9002-1 100-206-751 1
Bracket (2) 03-018-9003-1 100-206-761 1
Fixing plate 03-018-9004-1 100-206-771 2
Mounting bracket 2 (for MODEL-1722/1722C/1723C)
Type: OP03-93
Code No.: 008-445-080
Hex. bolt M4X 12 000-804-725 4
Hex. bolt M8X 20 000-805-707 8
Mounting plate 03-018-9001-0 100-206-740 1
Support plate (1) 03-018-9005-0 100-206-780 1
Support plate (2) 03-018-9006-0 100-206-790 1
Bracket (1) 03-028-9101-0 100-206-810 1
Bracket (2) 03-028-9102-0 100-206-820 1
Fixing plate 03-028-9103-0 100-206-830 2
Type Code No. Qty
Assemble the mounting bracket and fast en it to a mast. Fasten the antenna unit to the
bracket.
1-14
(A) Assembling the mounting bracket
Support plate
(B) Fastening antenna to mounting
bracket
How to assemble and mount the optional mounting bracket
1-15
1.3 Mounting of Antenna Unit for MODEL 1742/1742C/1762/1762C/1752/ 1752C/1753C/1763C
1.3.1 Mounting considerations
• The antenna un it is generally installed either on top of the wheelhouse or on the radar
mast on a suitable platform. Locate the ant enna unit where there is a good all-round view.
Any obstruction will cause shadow and blind sectors.
A mast for instance, with a diameter considerably less than t he width of the radiator, 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.
• It is rarely possible t o place t he 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.
• If you have a radio d irection finder on your boat, keep t he antenna unit from its antenna
more than two meters to prevent interference to the direction finder.
• 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.
• A magnetic compass will be affected if the antenna unit is placed too close to the
magnetic compass. Observe the following compass safe distances to prevent deviation of
a magnetic compass: Standard compass, 2.10 m (MODEL 1742/1742C), 1.00 m (MODEL
1762/1762C/1763C), 1.50 m (MODEL 1752/1752C1753C), Steering compass, 1.60 m
(MODEL 1742/1742C), 0.80 m (MODEL 1762/1762C/1763C), 1.20 m (MODEL
1752/1752C/1763C).
• Do not paint the radiato r aperture, to ensure proper emission of the radar waves.
• When this radar is to be installed on larger vessels, consider the following points:
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.
• 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.
As shown in the figure below, the antenna unit may be installed on the bridge, on a common
mast or on the radar mast. For 1752/1752C, mount the antenna unit on a flat surface whose
dimensions are greater than 300 x 250 mm.
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(a) On bridge
(b) Common mast
(c) Radar mast
1.3.2 Mounting antenna unit of MODEL 1742/1742C
1. The standard mounting method provides that, the antenna upper housing (“lid”) opens
toward the bow. However, the antenna unit may be mounted so t he antenna upper
housing opens toward the stern. No m odifications are required for the former method,
however some modification is required f or the lat t er.
Ship's Bow Ship's Bow
(a) Standard (b) Alternative
Mounting of antenna unit
2. Drill four bolts holes (Ø12mm) and one cable entry hole (Ø 25m m) in the radar mast
platform or the deck by using the full-sized template.
3. Prepare locally four M10 hex. bolts, flat washers and spring washers for fixing the
antenna housing. The length of the bolt depends on the thickness of the radar mast
platform or the deck.
Bolt to be prepared locally
Platform thickness Bolt size
Less than 5 mm M10x20
Between 5 and 10 mm M10x 25
Between 10 and 15 mm M10x30
Between 15 and 10 mm M10x35
4. Place the antenna housing on the chosen position, and orient it as shown in above.
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5. Apply silicone sealant to the prepared hex. bolts and washers and to the base of the four
“feet” of the antenna housing to prevent corrosion. Secure the antenna housing with the
bolts and washers.
Antenna housing
Effective thread length 15mm
Apply silicone sealant here.
Apply
silicone
sealant.
M10 FW (SUS304) 2mm
M10 SW (SUS304) 2.5mm
M10 Hex Bolt (SUS304)
Platform or deck
Apply silicone sealant here.
Mounting of scanner housing
Only the signal cable runs from the display unit to the antenna unit. Drill a hole of at least 25
mm diameter through the deck or bulkhead for cable entry. Pass the signal cable through
the hole. Apply a sealing compound to the hole for waterproofing.
In order to minimize the chance of picking up elect r ical interference, avoid where possible
routing the signal cable near other onboard electrical equipment. Also, avoid running the
cable in parallel with power cables.
The procedure for connecting the signal cable to the antenna unit is as follows.
6. Through a pipe or waterproof cable gland fitted on the wheelhouse top or bulkhead,
pass the cable toward the antenna unit.
7. Open the antenna housing cover and fix the stay. Remove the cable clamping plate by
loosening four M4 screws and the gasket at the bott om of the antenna housing.
M4 x 10 (4 pcs.)
Shield
Cable clamping plate
Gasket
Cable entry
9P connector
J2
J1
10P
connector
INT board
Signal cable
Cable connection and grounding
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