Furuno USA 9ZWRTR059A Marine Radar User Manual Cover
Furuno USA Inc Marine Radar Cover
Contents
- 1. op man part 1
- 2. op man part 2
- 3. op man part 3
- 4. inst manual
op man part 1
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OPERATOR'S MANUAL
MARINE RADAR
MODEL
MODEL 1835
MODEL 1935
MODEL 1945
www.furuno.co.jp
The paper used in this manual
is elemental chlorine free.
・FURUNO Authorized Distributor/Dealer
9-52 Ashihara-cho,
Nishinomiya, 662-8580, JAPAN
Telephone : +81-(0)798-65-2111
Fax
: +81-(0)798-65-4200
All rights reserved.
Printed in Japan
A : FEB . 2009
C : JAN . 18, 2010
Pub. No. OME-35790-C
(YOTA )
MODEL1835/1935/1945
*00017024512*
*00017024512*
* 0 0 0 1 7 0 2 4 5 1 2 *
IMPORTANT NOTICES
General
• This manual has been authored with simplified grammar, to meet the needs of international users.
• The operator of this equipment must read and follow the descriptions in this manual. Wrong operation or maintenance can cancel the warranty or cause injury.
• Do not copy any part of this manual without written permission from FURUNO.
• If this manual is lost or worn, contact your dealer about replacement.
• The contents of this manual and equipment specifications can change without notice.
• The example screens (or illustrations) shown in this manual can be different from the screens
you see on your display. The screens you see depend on your system configuration and equipment settings.
• Save this manual for future reference.
• Any modification of the equipment (including software) by persons not authorized by FURUNO
will cancel the warranty.
• All brand and product names are trademarks, registered trademarks or service marks of their
respective holders.
How to discard this product
Discard this product according to local regulations for the disposal of industrial waste. For disposal
in the USA, see the homepage of the Electronics Industries Alliance (http://www.eiae.org/) for the
correct method of disposal.
How to discard a used battery
Some FURUNO products have a battery(ies). To see if your product has a battery(ies), see the
chapter on Maintenance. Follow the instructions below if a battery(ies) is used.
In the European Union
The crossed-out trash can symbol indicates that all types of batteries
must not be discarded in standard trash, or at a trash site. Take the
used batteries to a battery collection site according to your national
legislation and the Batteries Directive 2006/66/EU.
Cd
In the USA
The Mobius loop symbol (three chasing arrows) indicates that Ni-Cd
and lead-acid rechargeable batteries must be recycled. Take the used
batteries to a battery collection site according to local laws.
Ni-Cd
Pb
In the other countries
There are no international standards for the battery recycle symbol. The number of symbols can
increase when the other countries make their own recycle symbols in the future.
SAFETY INSTRUCTIONS
Read these safety instructions before you operate the equipment.
WARNING
Indicates a condition that can cause death or serious
injury if not avoided.
CAUTION
Indicates a condition that can cause minor or moderate
injury if not avoided.
Warning, Caution
Prohibitive Action
Mandatory Action
WARNING
Radio Frequency Radiation Hazard
The radar antenna sends the electromagnetic radio frequency (RF) energy. This
energy can be dangerous to you, especially your eyes. Do not look at the radiator or
near the antenna when the antenna is rotating.
The distances at which RF radiation levels of 100 W/m2, 50 W/m2 and 10 W/m2 exist
are shown in the table.
Note: If the antenna unit is installed at a close distance in front of the wheel house,
prevent the transmission in that area to protect passengers and crew from microwave
radiation. Set the [Sector Blanks] in the [System] menu.
Distance to
50 W/m2 point
Distance to
10 W/m2 point
1835
Worst case 0.0 m
Worst case 1.0 m
1935
Worst case 0.2 m
Worst case 1.2 m
Worst case 0.2 m
Worst case 1.7 m
Model
1945
ii
Distance to
100 W/m2 point
Worst case 0.1 m
SAFETY INSTRUCTIONS
WARNING
ELECTRICAL SHOCK HAZARD
WARNING
Use the correct fuse.
Do not open the equipment.
Only qualified persons can work
inside the equipment.
Turn off the power before you
service the antenna unit. Post a
warning sign near the power
switch not to turn on the power
while you service the antenna
unit.
Prevent the potential risk of being
struck by the rotating antenna and
exposure to RF radiation hazard.
When you work on the antenna
unit, wear a safety belt and hard
hat.
Serious injury or death can result
if a person falls from the radar
antenna mast.
A wrong fuse can damage the
equipment and cause fire.
Keep heater away from the
equipment.
Heat can change the equipment
shape and melt the power cord, which
can cause fire or electrical shock.
Do not put liquid-filled containers
on the top of the equipment.
Fire or electrical shock can occur if a
liquid spills into the equipment.
Do not operate the equipment with
wet hands.
Electrical shock can occur.
Do not disassemble or modify
the equipment.
Fire or electrical shock can occur.
Turn off the power immediately
if water leaks into the equipment
or smoke or fire is coming
from the equipment.
Failure to turn off the equipment
can cause fire or electrical shock.
iii
SAFETY INSTRUCTIONS
WARNING
Do not depend on one navigation
device for the navigation of the
ship. The navigator must check all
aids available to confirm position.
Electronic aids are not a
replacement for basic navigation
principles and common sense.
· The ARPA automatically tracks an
automatically or manually acquired
radar target and calculates its
course and speed, indicating them
by a vector. Since the data from the
auto plotter depend on the selected
radar targets, the radar must be
optimally tuned for use with the auto
plotter, to ensure required targets
will not be lost or unnecessary
targets like sea returns and noise
will not be acquired and tracked.
· A target is not always a landmass,
reef, ship, but can also be returns
from the sea surface and from
clutter. As the level of clutter
changes with the environment, the
operator must correctly adjust the
A/C SEA, A/C RAIN and GAIN
controls so that the target echoes do
not disappear from the radar screen.
CAUTION
The plotting accuracy and response of
this ARPA meets IMO standards.
The tracking accuracy is affected by the
following:
· The tracking accuracy is affected by
course change. One to two minutes is
required to restore vectors to full
accuracy after a sudden course change.
(The actual amount depends on
gyrocompass specifications.)
· The amount of tracking delay is inversely
proportional to the relative speed of the
target. Delay is on the order of 15-30
seconds for high relative speed; 30-60
seconds for low relative speed.
The data from ARPA and AIS are
intended for reference purposes only.
Check all available navigation aids to
determine target movement.
WARNING LABELS
Warning labels are attached to the equipment.
Do not remove any label. If a label is missing or
damaged, contact a FURUNO agent or dealer
about replacement.
WARNING
To avoid electrical shock, do not
remove cover. No user-serviceable
parts inside.
WARNING
Radiation hazard. Only qualified
personnel should work inside scanner.
Confirm that TX has stopped before
opening scanner.
iv
DISPLAY UNIT
Name:
Warning Label 1
86-003-1011-3
Type:
Code No.: 100-236-233-10
ANTENNA UNIT
Name:
Warning Sticker
03-142-3201-0
Type:
Code No.: 100-266-890-10
TFT LCD
The high quality TFT (Thin Film
Transistor) LCD displays 99.999%
of its picture elements.
The remaining 0.001% may drop
out or light, however this is an
inherent property of the LCD; it is
not a sign of malfunction.
TABLE OF CONTENTS
FOREWORD................................................................................................................... ix
SYSTEM CONFIGURATION ......................................................................................... xii
1.
DESCRIPTION OF OPERATION ..........................................................................1-1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
1.10
1.11
1.12
1.13
1.14
1.15
1.16
1.17
1.18
1.19
1.20
1.21
1.22
1.23
1.24
Controls ......................................................................................................................1-1
How to Turn the Radar On/Off and Transmit..............................................................1-2
Display Indications......................................................................................................1-3
How to Adjust Display Brilliance, Panel Dimmer ........................................................1-4
Menu Description........................................................................................................1-4
Tuning.........................................................................................................................1-6
Display Modes ............................................................................................................1-7
1.7.1 How to select the display mode......................................................................1-7
1.7.2 Description of display modes .........................................................................1-8
How to Select a Range Scale.....................................................................................1-9
How to Adjust the Gain (sensitivity)..........................................................................1-10
How to Reduce the Sea Clutter ................................................................................1-11
How to Reduce the Rain Clutter ...............................................................................1-12
Automatic Adjustments of Sea and Rain Clutters ....................................................1-13
Cursor.......................................................................................................................1-14
Interference Rejector ................................................................................................1-15
How to Measure the Range to a Target ...................................................................1-16
1.15.1 How to adjust range ring brilliance ...............................................................1-16
1.15.2 How to measure the range with a VRM........................................................1-17
1.15.3 How to select VRM unit ................................................................................1-17
How to Measure the Bearing to a Target..................................................................1-18
1.16.1 How to measure the bearing with an EBL ....................................................1-18
1.16.2 EBL reference ..............................................................................................1-19
How to Measure the Range and Bearing Between Two Targets .............................1-19
How to Select a Pulselength.....................................................................................1-20
Target Alarm.............................................................................................................1-21
1.19.1 How to set a target alarm zone ....................................................................1-22
1.19.2 How to stop the audio alarm.........................................................................1-22
1.19.3 How to select the alarm type ........................................................................1-23
1.19.4 How to sleep a target alarm temporarily.......................................................1-23
1.19.5 How to deactivate a target alarm..................................................................1-24
1.19.6 How to select the target strength which triggers a target alarm ...................1-24
1.19.7 How to turn the buzzer on/off .......................................................................1-24
How to Off-center the Display...................................................................................1-25
1.20.1 How to select the off-center mode................................................................1-25
1.20.2 Off-center the display ...................................................................................1-25
Zoom ........................................................................................................................1-27
1.21.1 Zoom mode ..................................................................................................1-27
1.21.2 How to zoom ................................................................................................1-27
Echo Stretch .............................................................................................................1-29
Echo Average ...........................................................................................................1-29
Target Trails .............................................................................................................1-30
1.24.1 Trail time.......................................................................................................1-30
1.24.2 How to start, stop the trails ...........................................................................1-31
1.24.3 Trail mode ....................................................................................................1-31
1.24.4 Trail gradation ..............................................................................................1-32
1.24.5 Trail color......................................................................................................1-32
1.24.6 Trail level ......................................................................................................1-33
TABLE OF CONTENTS
1.25
1.26
1.27
1.28
1.29
1.30
1.31
1.32
1.33
1.34
1.35
1.36
1.37
1.38
1.39
1.40
1.41
1.42
1.43
1.44
1.45
2.
1.24.7 How to restart, stop the trails ....................................................................... 1-33
1.24.8 Narrow trails ................................................................................................. 1-34
1.24.9 Your ship trail ............................................................................................... 1-34
How to Send the Target Position and Enter the Origin Mark ................................... 1-34
How to Hide the Heading Line Temporarily ............................................................. 1-35
Presentation Brilliance ............................................................................................. 1-35
Custom Setup .......................................................................................................... 1-36
1.28.1 About custom setup ..................................................................................... 1-36
1.28.2 Description of custom setup items ............................................................... 1-36
1.28.3 How to set custom setups ............................................................................ 1-37
How to Program Function Keys (F1, F2 and F3 keys) ............................................. 1-38
Noise Rejector.......................................................................................................... 1-39
Wiper........................................................................................................................ 1-39
How to Reduce Second-trace Echoes ..................................................................... 1-40
Watchman ................................................................................................................ 1-40
Color Selections ....................................................................................................... 1-41
1.34.1 Preset colors ................................................................................................ 1-41
1.34.2 Custom colors .............................................................................................. 1-42
Navigation Data........................................................................................................ 1-43
1.35.1 Navigation data during standby.................................................................... 1-43
1.35.2 Navigation data at the bottom of the screen ................................................ 1-43
Dynamic Range........................................................................................................ 1-44
Characteristics Curve............................................................................................... 1-45
Waypoint Marker ...................................................................................................... 1-46
Alarm Message ........................................................................................................ 1-46
Echo Area ................................................................................................................ 1-48
Initial Sub Menu ....................................................................................................... 1-49
1.41.1 How to open the Initial sub menu................................................................. 1-49
1.41.2 Description of Initial sub menu ..................................................................... 1-49
Units Sub Menu........................................................................................................ 1-51
Sector Blank............................................................................................................. 1-52
Other Menu Items .................................................................................................... 1-53
1.44.1 Menu items on the [Brill/Color] menu ........................................................... 1-53
1.44.2 Menu items on the [Display] menu............................................................... 1-55
1.44.3 Menu items on the [Echo] menu .................................................................. 1-56
Remote Display........................................................................................................ 1-56
DESCRIPTION OF RADAR ...................................................................................2-1
2.1 General ...................................................................................................................... 2-1
2.1.1 Minimum and maximum ranges ..................................................................... 2-1
2.1.2 Radar resolution............................................................................................. 2-2
2.1.3 Bearing accuracy ........................................................................................... 2-3
2.1.4 Range measurement...................................................................................... 2-3
2.2 False Echoes ............................................................................................................. 2-3
2.2.1 Multiple echoes .............................................................................................. 2-3
2.2.2 Sidelobe echoes............................................................................................. 2-4
2.2.3 Virtual image .................................................................................................. 2-4
2.2.4 Shadow sector ............................................................................................... 2-5
2.3 SART (Search and Rescue Transponder) ................................................................. 2-6
2.3.1 SART description ........................................................................................... 2-6
2.3.2 General remarks on receiving SART ............................................................. 2-7
2.4 RACON ...................................................................................................................... 2-8
vi
TABLE OF CONTENTS
3.
ARPA OPERATION ...............................................................................................3-1
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
4.
AIS OPERATION ................................................................................................... 4-1
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
4.14
4.15
4.16
5.
Controls for Use with AIS ...........................................................................................4-1
AIS Display On/Off .....................................................................................................4-1
AIS Symbols ...............................................................................................................4-2
Activating, Sleeping Targets.......................................................................................4-2
AIS Target Data..........................................................................................................4-3
How to Sort Targets....................................................................................................4-4
Display Range ............................................................................................................4-4
How to Display the Targets within a Specific Sector ..................................................4-5
Number of Targets to Display.....................................................................................4-5
Vector Attributes .........................................................................................................4-6
4.10.1 What is a vector?............................................................................................4-6
4.10.2 Vector time and vector reference ...................................................................4-6
History Display (target past position)..........................................................................4-7
CPA/TCPA Alarm .......................................................................................................4-8
Proximity Alarm ..........................................................................................................4-9
Lost Target .................................................................................................................4-9
Symbol Color ............................................................................................................4-10
How to Ignore Slow Targets .....................................................................................4-10
GPS OPERATION .................................................................................................5-1
5.1
5.2
5.3
5.4
5.5
6.
Precautions for Use ....................................................................................................3-1
Controls for Use with ARPA .......................................................................................3-1
ARPA Display On/Off .................................................................................................3-2
How to Acquire and Track the Targets .......................................................................3-2
3.4.1 Manual acquisition..........................................................................................3-2
3.4.2 Automatic acquisition .....................................................................................3-3
How to Stop the Tracking of ARPA Target .................................................................3-3
3.5.1 How to stop the tracking of selected targets ..................................................3-3
3.5.2 How to stop the tracking of all targets ............................................................3-3
Vector Attributes .........................................................................................................3-4
3.6.1 What is a vector?............................................................................................3-4
3.6.2 Vector time and vector reference ...................................................................3-4
3.6.3 Vector of your ship .........................................................................................3-5
History Display (target past position)..........................................................................3-6
ARPA Target Data......................................................................................................3-7
CPA/TCPA Alarm .......................................................................................................3-8
Proximity Alarm ..........................................................................................................3-9
Lost Target ...............................................................................................................3-10
Symbol Color ............................................................................................................3-10
Navigator Mode ..........................................................................................................5-1
Datum .........................................................................................................................5-1
WAAS Setup...............................................................................................................5-2
Satellite Monitor..........................................................................................................5-3
Cold Start....................................................................................................................5-4
MAINTENANCE, TROUBLESHOOTING .............................................................. 6-1
6.1
6.2
6.3
6.4
6.5
6.6
6.7
Preventive Maintenance .............................................................................................6-2
Fuse Replacement .....................................................................................................6-3
Magnetron Life............................................................................................................6-3
LCD Backlight Life ......................................................................................................6-3
Simple Troubleshooting..............................................................................................6-4
Advanced-level Troubleshooting ................................................................................6-5
Diagnostic Test...........................................................................................................6-7
vii
TABLE OF CONTENTS
6.8 LCD Test .................................................................................................................... 6-9
6.9 ARPA Test ............................................................................................................... 6-10
6.10 GPS Test.................................................................................................................. 6-11
APPENDIX 1 MENU TREE .......................................................................................AP-1
APPENDIX 2 GEODETIC CHART LIST ...................................................................AP-5
SPECIFICATIONS .....................................................................................................SP-1
INDEX.......................................................................................................................... IN-1
Declaration of Conformity
viii
FOREWORD
A Word to the Owner of the MODEL 1835/1935/1945 Marine Radar
Congratulations on your choice of the FURUNO MODEL 1835/1935/1945 Marine Radar. We are
confident you will see why the FURUNO name has become synonymous with quality and reliability.
For over 60 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 equipment 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 operation and maintenance procedures set forth
in this manual.
We would appreciate feedback from you, the end-user, about whether we are achieving our purposes.
Thank you for considering and purchasing FURUNO equipment.
Features
The MODEL 1835/1935/1945 (the MODEL 1835 series herein after) display ships, lands, etc. on
a 10.4-inch color LCD. You can operate this equipment with the keys, knob controls and Cursorpad.
The main features are as shown below.
• The MODEL 1835 series has the following models:
Model
Output
power
Max range
Size and type for
radar antenna
MODEL 1835
4 kW
36 nm
60 cm, Radome
MODEL 1935
4 kW
48 nm
100 cm, Open
MODEL 1945
6 kW
64 nm
120 cm, Open
Antenna rotation
24 RPM
24/48 RPM
• Bright 10.4-inch LCD is visible in direct sunlight.
• An easy to understand user interface with on-screen menu
• “Fog-Free” color LCD provides clear view in any weather conditions.
• Echo area display with full screen provides observation of a wider range around the vessel.
• Optional Auto Plotter ARP-11 is available for ARPA operation.
• User programmable function keys
• AIS data can be displayed with connection of FURUNO AIS Transponder/Receiver.
• Echoes in yellow, green, orange or multiple colors
ix
FOREWORD
Radar Type and Function Availability
This radar series is available in four types: [River], [Sea], [IEC] and [Russian-River], and function
availability depends on type. The table below shows type and function availability.
[River]: For river, [Sea]: For sea, [IEC]: IEC compliant radar, [Russian-River]: For Russian river
Type and function availability
Item
Type
River
Sea
IEC
Russian-River
Automatic menu
closure
Menu does not close automatically.
Menu closes automatically when
there is no menu operation for 10
seconds.
Effective radius
dot count
240 dots
210 dots
Echo color
Select the echo display color among
[Yellow], [Green], [Orange] or [Multi].
Select the echo display color among
[Yellow], [Green] or [Orange].
Echo color
customizing
Can customize the echo display
color.
Can not customize the echo display
color.
Echo area
Select the display area from [Normal]
or [Full Screen].
Can not select. Display area is circle
only.
Base text display
Can show or hide the base text
indications.
Can not hide the base text indications.
Range preset
Select the radar ranges to use.
Can not select
the radar ranges
to use.
Unit defaults
1) range
2) speed
1) KM
2) km/h,
m/s
1) KM
2) km/h,
m/s
Bearing scale
Graduation every 1°, 5°, 10°, 30°, no
numeric indication, displayed in the
effective radius
Graduation every 1°, 5°, 10°, 30°,
numeric indication every 30°,
displayed out of the effective radius
VRM unit
Can set the VRM unit independently
from the range unit.
Can not set the VRM unit independently from the range unit.
Range unit
Can change the range unit when
transmitting.
Can not change the range unit in
transmit. Only in standby.
AIS symbol color
Select the AIS symbol color from
[Green], [Red], [Blue], [White] or
[Black].
Select the AIS symbol color from
[Green], [Blue], [White] or [Black].
Vector reference
Select the display mode for the vector
from [Relative] or [True].
[True]
1) NM
2) kn
FOREWORD
Item
Type
River
Sea
IEC
Russian-River
Pulselength
• 2NM/4KM/2SM: MP
• 4NM/8KM/4SM: LP
• 2NM/4KM/
2SM: SP or
MP
• 4NM/8KM/
4SM: MP or LP
The rule for the
numbering of
ARPA targets
Non-IEC system
IEC system
Marks temporary
hidden by pressing and holding
the CANCEL/HL
OFF key
Heading line, all marks (EBL, VRM,
target alarm zone, etc.)
Heading line, vector of your ship (with
ARP-11), north marker
Note on Chinese font: The Chinese font used in this equipment is Ricoh Company Ltd.'s Ricoh
bitmap font.
xi
SYSTEM CONFIGURATION
Basic configuration is shown below with solid line.
MODEL 1835
Antenna unit
RSB-0071-057A
MODEL 1935
Antenna unit
XN10A
RSB-0070/0073-064A
MODEL 1945
Antenna unit
XN12A
RSB-0070/0073-059A
Display unit
RDP-152
Heading sensor
CANCEL
HL OFF
MENU
Remote display
ENTER
Echo sounder,
GPS navigator,
AIS, etc.
EBL
VRM
OFF
CENTER
TARGET
ALARM
TLL
GAIN
A/C SEA
RANGE
CUSTOM
External buzzer
TRAILS
Echo sounder,
GPS navigator,
AIS, etc.
A/C RAIN
STBY
TX
ECONOMY
B RI L L
Rectifier
RU-3423
Rectifier
PR-62
12 - 24 VDC
xii
100/110/220/230 VAC
for MODEL 1835
100/110/115/220/230 VAC
for MODEL 1935/1945
1.
DESCRIPTION OF OPERATION
1.1
Controls
Display unit
The display unit has 16 keys which have labels with their functions, three knob controls and a Cursorpad. When you correctly operate this equipment, the unit beeps one
time. If your operation is wrong, the unit beeps three times.
No.
CANCEL
HL OFF
MENU
ENTER
EBL
VRM
OFF
CENTER
TARGET
ALARM
TLL
RANGE
GAIN
Control
Description
MENU
Open/close the menu.
Cursorpad
Select the menu items and options.
Move the cursor.
EBL
Measure the bearing to a target.
OFF CENTER Off-center the display.
TLL
Send the latitude and longitude position
of a target to a navigation plotter.
Enter an origin mark at the cursor position on the radar display.
GAIN
Rotating: Adjust the sensitivity of the radar receiver.
A/C SEA
Rotating: Reduce the sea clutter.
A/C RAIN
Rotating: Reduce the rain clutter.
6,
7, 8
F1, F2, F3
Push: Activate the function given to the
key.
CANCEL/ HL
OFF
Erase the heading line while you press
this key. Cancel last entry in menu operation. Cancel the tracking of ARPA target. Remove data of selected ARPA or
AIS target from the data box. Return
one layer in multiple level menu.
10
ENTER
Save selected menu option. Acquire
ARPA target. Select ARPA or AIS target
to display its data.
11
VRM
Measure the range to a target.
12
TARGET
ALARM
Set the target alarm, which checks for
targets in the operator-set area.
13
RANGE
Select the detection range.
14
CUSTOM
Preset the radar controls for one-touch
operation of radar.
15
TRAILS
Plot the radar echo movement.
16
STBY/TX
Transmit the radar pulses and put the
radar in standby alternately.
CUSTOM
A/C SEA
TRAILS
A/C RAIN
STBY
TX
ECONOMY
CANCEL
HL OFF
MENU
B RI L L
10
ENTER
EBL
VRM
OFF
CENTER
TARGET
ALARM
TLL
RANGE
11
12
13
GAIN
F1
CUSTOM
A/C SEA
14
F2
TRAILS
15
STBY
TX
16
A/C RAIN
F3
ECONOMY
BR
IL L
17
17
/BRILL
Short press: Turn on the power. Adjust
the brilliance.
Long press: Turn off the power.
1-1
1. DESCRIPTION OF OPERATION
1.2
How to Turn the Radar On/Off and Transmit
Press the B R I L L key to turn on the radar. To turn off the radar, press and hold down
the key until the screen turns off.
When you turn on the power, the initialization screen appears followed by the start-up
screen. The start-up screen shows the model name, program number and the results
of the ROM and RAM check, OK or NG (No Good). If NG appears, contact your dealer
for instruction.
Model name appears here.
0359246-XX.XX
XX: Program version no.
Start-up screen
After the self-tests are completed, the bearing scale and a digital timer appear. The
digital timer counts down time necessary to warm the magnetron, which transmits the
radar pulses. The time to warm the magnetron takes 90 sec.
After the timer reads 0:00, the STBY screen appears. The STBY screen has three
types. (See section 1.44.2.) The radar is ready to transmit the radar pulses. Press the
STBY/TX key to transmit the radar pulses.
The STBY/TX key switches between standby and transmit. The antenna rotates in
transmit and is stopped in standby. The magnetron gets old with use. To increase the
life of the magnetron, set the radar in standby when you do not use the radar.
Quick start
If the magnetron is still warm, you can get the radar to TRANSMIT without the warmup time. When the B R I L L key is turned off by accident, turn on the
seconds after you turn off the power.
1-2
BR
IL L
key within 10
1. DESCRIPTION OF OPERATION
1.3
Display Indications
Offcenter
(M: Manual, A: Auto, C: Custom)
Input source
(shown when display
Heading
unit functions as
remote display)
North marker
Range
Range ring interval
Pulselength
Display mode
Zoom indication
1.5NM
SLAVE H D G
350.0°
TRAIL(T)
15 S
0.5 OFFCENT(A)
SP CS 1
H UP
ZOOM(R)
Trail reference
Trail time
TUNEAUTO
Tuning indicator
ALM1_ACK
ALM2_OUT
Target Alarm 1 (2)
indications
WTC
WATCHMAN
Target alarm zone 1
Custom setting
(1 - 3)
No. 2 EBL
Range ring
Heading line
Bearing scale
No. 2 VRM
No. 1 VRM
No. 1 EBL
Zoom cursor
Zoom window
Cursor
Target alarm zone 2
Echo stretch
Echo averaging
No. 1 EBL bearing
No. 2 EBL bearing
OWN SHIP
LAT
34°56.123N
LON
135°34.567E
SPEED
12.3KN
LAT
LON
TTG
ES 1
EAV 1
IR 1
A/C AUTO
EBL
2 7 0 . 0 °R
2 2 . 0 °R
+ CURSOR
34°56.123N
135°34.567E
01:00
VECT TRUE
05:00
+ 2 4 1 . 0 °R 1 . 5 9 2 NM
BRG
RNG
TTG
WAYPOINT
14.8°
0.876NM
00:20
VRM
0 . 8 8 9 NM
0 . 4 2 2 NM
Interference rejector
Auto adjustment of
rain and sea clutters
No. 1 VRM range
No. 2 VRM range
Vector time
Cursor data
(Range and bearing or L/L position)
Nav data: Appears at screen bottom when [Data Box]
in the [Display] menu is set to [Nav] or [All]. Appropriate
sensors required to display nav data.
Display indications
1-3
1. DESCRIPTION OF OPERATION
1.4
How to Adjust Display Brilliance, Panel Dimmer
You can adjust the display brilliance and panel dimmer as follows:
1. Press the
BR
IL L
key momentarily to show the [Brill/Panel] dialog box.
Brill/Panel dialog box
2. Press the ENTER key (or S, T) to select [Brill] or [Panel].
3. Use the Cursorpad (W or X) to adjust. (For brilliance, you can also use the
key.)
BR
IL L
4. Press the CANCEL/HL OFF key to close the window.
1.5
Menu Description
This MODEL 1835 series has 15 menus and 6 sub menus. Below is the basic procedure for menu operation.
1. Press the MENU key to open the menu.
Menu
Currently selected menu
Title bar*
Cursor*
Menu items
and current
settings
Guide message
(The simple explanation for
the current menu.)
Scroll bar (Indicates menus currently not shown in menu
window. Black vertical line indicates location in menu.
You can see the menus and sub menus currently not shown
by using or .)
*: Title bar in currently controllable column is blue; selected cursor is yellow.
Title bar of inactive column is gray.
Menu
1-4
1. DESCRIPTION OF OPERATION
2. Use the Cursorpad (S or T) to select a menu or a sub menu. The cursor (yellow)
in the Menu column indicates the menu currently selected. The menu items in the
right window change according to the menu selected.
Menu description
[Brill/Color]: Adjust the brilliance and color.
[DIsplay]: Set up the display-related features.
[Echo]: Adjust the echo feature.
[Custom 1] - [Custom 3]: Customize the user settings.
[Alarm]: Set up the alarm items.
[Target Trails]: Process trails of the radar targets.
[Tuning]: Adjust the radar tuning.
[Others]: Set up other items.
[Target]: Set up the targets configuration.
[ARPA]: Set up ARPA targets.
[AIS]: Set up AIS targets.
[GPS]: Set up GP-320B (Black-Box GPS).
[System]
[Initial]: Initial settings.
[Tests]: System diagnostic and LCD test.
[Sector Blanks]: Set up the sector blanks to prevent the transmission in a certain area.
[Units]: Set up units.
[Installation] and [Factory]: For use by the installer. See the Installation Manual.
3. Press the ENTER key to switch the control to the menu items column. The cursor
in the menu column now turns gray and the cursor in the menu items column is
yellow. The control moves to the menu items column.
To switch the control from the menu items column to the menu column, use the
CANCEL/HL OFF key. The color of the title bar of the active column is blue and
of the inactive column is gray.
4. Use the Cursorpad (S or T) to select a menu item and press the ENTER key. A
window with options for the related menu item appears.
Display Color options
Echo Brill setting window
Example windows
5. Use the Cursorpad (S or T) to select an option or numeric value.
6. Press the ENTER key to save your selection. To close the window without saving,
press the CANCEL/HL OFF key (instead of the ENTER key).
7. Press the MENU key to close the menu.
Note: The menus on the [IEC] and [Russian-River] types close automatically when
there is no menu operation for 10 seconds, according to IEC regulations. The following
menus and screens are excluded from this regulation:
Alarm message, Alarm status, Tuning Init Adjust, GPS self test, GPS satellite
monitor, System self test, System LCD pattern, and Auto installation setup.
The menus do not close automatically in the [River] or [Sea] configuration.
1-5
1. DESCRIPTION OF OPERATION
1.6
Tuning
In default, the radar receiver can be tuned automatically after turning the radar to TX.
If you require fine tuning in manual, do the following:
1. Transmit the radar and select the maximum range with the RANGE key.
2. Press the MENU key to open the menu.
3. Use the Cursorpad (S or T) to select [Tuning] and press the ENTER key.
Tuning menu
4. Use the Cursorpad (S or T) to select [Tuning Mode] and press the ENTER key.
Tuning Mode options
5. Use the Cursorpad (S or T) to select [Manual] and press the ENTER key.
6. Use the Cursorpad (S or T) to select [Manual Tuning] and press the ENTER key.
The window shown below appears.
Manual Tuning setting window
7. Use the Cursorpad (S or T) to adjust
TUNE MAN
Tuning method (Manual)
the tuning while you look the tuning
Tuning bar
bar at the upper-right corner of the disVertical bar
play. The best tuning point is where
the tuning bar moves to maximum value. The vertical bar on the tuning bar shows
the tuning voltage.
8. Press the ENTER key.
9. Press the MENU key to close the menu.
Note: If the automatic tuning does not give the correct tuning, run the [Tuning Init Adjust] again.
1-6
1. DESCRIPTION OF OPERATION
1.7
Display Modes
This radar has the display modes shown below. All modes except head-up require a
heading signal. The true motion mode additionally requires position data.
Relative Motion (RM)
• [Head Up] (H UP)
• [Course Up] (C UP)
• [North Up] (N UP)
• [True View] (TRUE VIEW)
True Motion (TM)
• [True Motion] (TM)
1.7.1
How to select the display mode
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Display] and press the ENTER key.
Display menu
3. Use the Cursorpad (S or T) to select [Display Mode] and press the ENTER key.
Display Mode options
4. Use the Cursorpad (S or T) to select a display mode and press the ENTER key.
5. Press the MENU key to close the menu.
Note: All modes except head-up require a heading signal in AD-10 format or NMEA
format. If the heading signal is lost, the mode is changed to head-up and the north
marker disappears. The display for heading is XXX.X and the alarm sounds. The message "GYRO" (AD-10 format data) or "NMEA_HDG" (NMEA format data) appears in
1-7
1. DESCRIPTION OF OPERATION
the alarm message display. To stop the audio alarm, press any key. When the heading
signal is restored, check the heading. To check the heading, press the F3 key. The
numeric value is displayed at the heading indication when the heading signal is restored.
1.7.2
Description of display modes
Head-up mode
North marker
Heading line
A display without azimuth stabilization in
which the line that connects the center with
the top of the display indicates your heading.
Targets are shown at their measured distances and their directions relative to your
heading. The short dotted line on the bearing
scale is the north marker.
Course-up mode
North marker
Heading line
The radar picture is stabilized and displayed
with the currently selected course at the top
of the screen. When you change the heading, the heading line moves with the course
selected. If you select a new course, select
the course-up mode again to display the new
course at the top of the display.
Targets are shown at their measured distances and their directions relative to the set
course, which is at the 0-degree position.
The heading line moves according to the
yawing and any course change.
North-up mode
Targets are shown at their measured distances and their true (compass) directions
from your ship. North is at the top of the
screen. The heading line changes its direction according to your heading.
1-8
North marker
Heading line
1. DESCRIPTION OF OPERATION
True motion mode
North marker
Heading line
Your ship and other objects in motion move
with their true courses and speed. All fixed targets, like landmasses, appear as fixed echoes
in ground stabilized TM.
When your ship reaches a point that is 75% of
the radius of the display, the position is reset.
The ship appears at 75% radius opposite to the
extension of the heading line on the display
center. You can manually reset your ship symbol if you press the OFF CENTER key.
340
350
000
010
020
330
Heading
line
030
320
040
310
050
300
340
North
marker
000
010
020
340
000
010
020
030
320
040
050
300
060
290
040
310
050
300
070
350
330
030
310
060
290
350
330
320
070
060
290
070
280
080
280
080
280
270
090
270
090
270
090
260
100
260
100
260
100
250
110
120
240
230
130
220
140
150
210
200
190
180 170
160
(a) True motion
is selected
250
110
120
240
230
130
220
140
150
210
200
190
180 170
160
080
250
110
120
240
230
130
220
140
150
210
200
190
180 170
160
(b) Your ship has reached a
(c) Your ship is automatically
point 75% of display radius
reset to 75% of display radius
Automatic reset of your ship marker in true motion mode
True view mode
The echoes move in real time depending on the change of the heading of your ship.
Heading line is at the top of the screen. When the heading signal is lost, this function
is not available and the display mode automatically changes to the head-up mode.
The [Wiper] is not available in this mode (see section 1.31).
North marker
Heading line
Heading line
North marker
The echoes move
depending on the
change of the heading
of your ship during
one sweep.
1.8
How to Select a Range Scale
The selected range scale, range ring interval and pulselength are shown at the upperleft corner on the screen. When an objective target comes closer, reduce the range
scale so that a target appears in 50-90% of the display radius.
Use the RANGE key to select range. Press the "+" part of the key to raise the range;
the "-" part to lower the range.
1-9
1. DESCRIPTION OF OPERATION
1.9
How to Adjust the Gain (sensitivity)
The gain functions to adjust the sensitivity of the receiver for the best reception. The
gain can be adjusted automatically or manually.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Echo] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Gain Mode] and press the ENTER key.
Gain Mode options
4. Use the Cursorpad (S or T) to select [Auto] or [Manual] then press the ENTER
key. The window for Gain/Sea/Rain indicator shown below appears. This window
closes automatically in the [River] or [Sea] mode when there is no menu operation
for three seconds. [Auto] is for adjusting the gain automatically. For [Manual], go
to Manual mode below.
AUTO: Auto, MAN: Manual
Gain setting bar
Gain/Sea/Rain indicator
5. Press the CANCEL/HL OFF key to close the window.
6. Press the MENU key to close the menu.
Note: When you want to adjust the gain finely in [Auto] mode, rotate the GAIN knob.
The confirmation message appears. If you select [Yes], the mode changes to [Manual]
mode. Rotate the GAIN knob to adjust the gain.
Are you sure to change to manual mode?
Confirmation message
Manual mode
1. Rotate the GAIN knob to adjust the gain so that weak noise appears on all of the
screen. If the gain is too low, weak echoes are erased. If the gain is too high, the
background noise hides weak targets.
2. Press the CANCEL/HL OFF key to close the window.
1-10
1. DESCRIPTION OF OPERATION
1.10
How to Reduce the Sea Clutter
The reflected echoes from the waves appear around your ship and have the name
"sea clutter". The sea clutter extends according to the height of waves and antenna
above the water. When the sea clutter hides the targets, use the A/C SEA control to
reduce the clutter, either manually or automatically.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Echo] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Sea Mode] and press the ENTER key.
4. Use the Cursorpad (S or T) to select [Auto] or [Manual] then press the ENTER
key. The window for Gain/Sea/Rain indicator appears (refer to the illustration at
step 4 in section 1.9). If you selected [Auto], go to step 5. For [Manual], go to Manual mode below.
5. Press the CANCEL/HL OFF key to close the window. [Auto] is for reducing the
sea clutter automatically. If the sea clutter is strong while cruising along a coastline in the [Auto] mode, go to step 6. If not, go to step 9.
6. Use the Cursorpad (S or T) to select [Auto Sea] and press the ENTER key.
Auto Sea options
7. Use the Cursorpad (S or T) to select [Coastal] or [Advanced] then press the ENTER key. The window for Gain/Sea/Rain indicator appears for confirmation.
[Coastal]: Suppress both land and sea clutter. For cruising along a coastline.
[Advanced]: Automatically discriminate land echoes from sea reflections to suppress only sea reflections. Use this mode for general use.
8. Press the CANCEL/HL OFF key to close the window.
9. Press the MENU key to close the menu.
Note: When you want to adjust the sea clutter finely in [Auto] mode, rotate the A/C
SEA knob. The confirmation message appears. If you select [Yes], the mode changes
to [Manual] mode. Rotate the A/C SEA knob to adjust the sea clutter.
Are you sure to change to manual mode?
Confirmation message
Manual mode
1. Rotate the A/C SEA knob to reduce the sea clutter.
Note: When the setting of the A/C SEA control is correct, the clutter is broken into
small dots, and small targets become identified. If the setting is not enough, targets are hidden in the clutter. If the setting is higher than necessary, both sea clutter and targets disappear from the display. Normally adjust the control until the
clutter has disappeared to leeward, but a small amount of the clutter is visible
windward.
1-11
1. DESCRIPTION OF OPERATION
Sea clutter at
screen center
A/C SEA control adjusted;
sea clutter reduced
Sea clutter
2. Press the CANCEL/HL OFF key to close the window.
1.11
How to Reduce the Rain Clutter
The reflections from the rain or snow appear on the screen. These reflections have the
name "rain clutter". When the rain clutter is strong, targets in the rain clutter are hidden
in the clutter. Reflections from the rain clutter are easily identified from true targets by
their wool-like appearance.
The A/C RAIN control, like the A/C SEA control, adjusts the receiver sensitivity, but in
longer range. If the setting is high, the rain clutter is more reduced. The rain control
breaks the continuous display of rain or snow reflections into a random pattern. When
the rain clutter hides the targets, adjust the rain control (automatic or manual) to reduce the clutter.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Echo] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Rain Mode] and press the ENTER key.
4. Use the Cursorpad (S or T) to select [Auto] or [Manual] then press the ENTER
key. The window for Gain/Sea/Rain indicator appears (refer to the illustration of
step 4 at section 1.9). If you selected [Auto], go to step 5. For [Manual], go to Manual mode below.
5. Press the CANCEL/HL OFF key to close the window.
6. Use the Cursorpad (S or T) to select [Auto Rain] and press the ENTER key.
Auto Rain options
7. Use the Cursorpad (S or T) to select [Calm], [Moderate] or [Rough] then press
the ENTER key. The window for Gain/Sea/Rain indicator appears for confirmation.
[Calm]: For light rain
[Moderate]: When you can not reduce the rain clutter with [Calm] mode
[Rough]: For heavy rain
8. Press the CANCEL/HL OFF key to close the window.
9. Press the MENU key to close the menu.
1-12
1. DESCRIPTION OF OPERATION
Note: When you want to adjust the rain clutter finely in [Auto] mode, rotate the A/C
RAIN knob. The confirmation message appears. If you select [Yes], the mode changes to [Manual] mode. Rotate the A/C RAIN knob to adjust the rain clutter.
Are you sure to change to manual mode?
Confirmation message
Manual mode
1. Rotate the A/C RAIN knob to reduce the rain clutter.
2. Press the CANCEL/HL OFF key to close the window.
Rain clutter at
screen center
A/C RAIN control adjusted;
rain clutter reduced
Rain clutter
1.12
Automatic Adjustments of Sea and Rain Clutters
When you can not correctly reduce the sea clutter or rain clutter with related control,
turn on the automatic anti-clutter feature. When this feature is turned on, "A/C AUTO"
appears at the lower-right corner.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Echo] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [A/C Auto] and press the ENTER key.
4. Use the Cursorpad (S or T) to select [Off] or [On] then press the ENTER key.
5. Press the MENU key to close the menu.
Caution on use
• [A/C Auto] can lower an echo which covers a wide area, like land or an island.
• When [A/C Auto] is active, the strength of a target in sea clutter or rain clutter can
be lower than actual strength. In this case change to manual A/C Sea and manual
A/C Rain and adjust the picture.
:£:¸
:Å:»
Land
»Å:¸:: £ :
Target
A/C Auto: Off
A/C Auto: On
1-13
1. DESCRIPTION OF OPERATION
1.13
Cursor
The cursor functions to find the range and bearing (default function) to a target or the
latitude and longitude position of a target. Use the Cursorpad to position the cursor
and read the cursor data at the screen bottom.
0.5NM
110.1° R
Cursor
0.488 NM
Cursor data
(range and bearing,
or latitutde and longitude)
Cursor data
Cursor data
You can show the cursor data as range and bearing (from your ship to the cursor) or
latitude and longitude. Position and heading signal are required.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Others] and press the ENTER key.
Others menu
1-14
1. DESCRIPTION OF OPERATION
3. Use the Cursorpad (S or T) to select [Cursor Position] and press the ENTER key.
Cursor Position options
4. Use the Cursorpad (S or T) to select [Rng/Brg] or [Lat/Lon] then press the ENTER key. (When the navigation data is displayed, cursor latitude and longitude position cannot be displayed.)
5. Press the MENU key to close the menu.
1.14
Interference Rejector
The radar interference can occur when your ship is near the radar of another ship that
operates on the same frequency band with your radar. The interference shows on the
screen as many bright dots. The dots can be random or in the shape of dotted lines
that run from the center to the edge of the display. You can identify the interference
from the normal echoes, because the interference does not appear in the same location at the next antenna rotation. When this feature is turned on, "IR 1", "IR 2" or "IR
3" appears at the lower-right corner.
Interference
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Echo] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Int Rejector] and press the ENTER key.
Indication at the lower-right corner
IR 1
IR 2
IR 3
Int Rejector options
4. Use the Cursorpad (S or T) to select [Off], [1], [2] or [3] then press the ENTER
key. [3] removes the interference the most.
5. Press the MENU key to close the menu.
Note: When there is no interference, turn off the interference rejector so you do not
miss the small targets.
1-15
1. DESCRIPTION OF OPERATION
1.15
How to Measure the Range to a Target
You can measure the range to a target in three methods. You can use the fixed range
rings, the cursor (if set to measure range and bearing), and the VRM (Variable Range
Marker).
Use the fixed range rings to get a rough estimate of the range to a target. The fixed
range rings are the concentric solid circles about your ship. The number of rings
changes with the selected range scale. The interval of the range ring is displayed at
the upper-left corner of the screen. Count the number of rings between the center of
the display and the target. Check the range ring interval and measure the distance of
the echo from the nearest ring.
1.15.1
How to adjust range ring brilliance
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Brill/Color] and press the ENTER key.
Brill/Color menu
3. Use the Cursorpad (S or T) to select [Rings Brill] and press the ENTER key.
Rings Brill options
4. Use the Cursorpad (S or T) to select an option and press the ENTER key. [4] is
the brightest. [Off] turns off the range rings.
5. Press the MENU key to close the menu.
1-16
1. DESCRIPTION OF OPERATION
1.15.2
How to measure the range with a VRM
There are two VRMs, No. 1 and No. 2. The VRMs are dashed rings so that you can
identify the rings from the fixed range rings. You can identify VRM 1 from VRM 2 by
different lengths of dashes. The dashes of the No. 1 VRM are shorter than those of
the No. 2 VRM.
1. Press the VRM key to display either of the VRMs. Press the VRM key to change
the active VRM between No. 1 and No. 2. The indication of the currently active
VRM is in a rectangle.
2. Use the Cursorpad to align the Variable Range Marker with the inner edge of the
target. Read the distance at the lower-right corner of the screen. Each VRM remains at the same geographical distance when you operate the RANGE key. The
size of the VRM ring changes in proportion to the selected range scale.
3. Press the ENTER key to anchor the VRM.
4. To erase a VRM, press the VRM key to activate the VRM and press the CANCEL/
HL OFF key.
Target
Cursor (+)
VRM 1
VRM 2
The currently active VRM
is in a rectangle.
VRM
VECT TRUE 05:00
37.4° R
5 . 0 4 4 NM
VRM 1 range
5 . 0 4 4 NM
2 . 0 8 2 NM
VRM 2 range
Cursor range and bearing
How to measure the range with the VRM
1.15.3
How to select VRM unit
You can select the unit of measurement used by the VRM. The selections are nautical
miles (NM), kilometers (KM), statute miles (SM) or kiloyard (KYD). The cursor range
unit is also changed when the VRM unit is changed.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Others] and press the ENTER key.
1-17
1. DESCRIPTION OF OPERATION
3. Use the Cursorpad (S or T) to select [VRM Unit] and press the ENTER key.
NM: 0.1 NM or above
YD: Less than 0.1 NM
VRM Unit options
4. Use the Cursorpad (S or T) to select the unit and press the ENTER key.
5. Press the MENU key to close the menu.
1.16
How to Measure the Bearing to a Target
Use the Electronic Bearing Line (EBL) to take a bearing of a target. There are two
EBLs, No. 1 and No. 2. Each EBL is a straight dashed line from the center of the
screen to the edge. The dashes of the No. 1 EBL are shorter than those of the No. 2
EBL.
1.16.1
How to measure the bearing with an EBL
1. Press the EBL key to display either of the EBLs. Press the EBL key to change the
active EBL between No. 1 and No. 2. The indication of the currently active EBL is
in a rectangle.
2. Use the Cursorpad to put the EBL on the center of the target. Read the bearing at
the lower-left corner of the screen.
3. Press the ENTER key to anchor the EBL.
4. To erase an EBL, press the EBL key to activate the EBL and press the CANCEL/
HL OFF key.
Target
Cursor (+)
EBL 2
EBL 1
The currently active EBL
is in a rectangle.
EBL 1 bearing
EBL
270.0° R
EBL 2 bearing
45.0° R
VECT TRUE 05:00
45.0° R
5 . 0 4 4 NM
Cursor range and bearing
How to measure the bearing with the EBL
1-18
1. DESCRIPTION OF OPERATION
1.16.2
EBL reference
"R" (relative) follows the EBL indication if the bearing is relative to the heading of your
ship. "T" (true) follows the EBL indication if the bearing is in reference to the north. You
can select relative or true in the head-up and true view modes. The bearing indication
is true in all other modes. True bearing requires a heading sensor.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Others] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [EBL Reference] and press the ENTER key.
EBL Reference options
4. Use the Cursorpad (S or T) to select [Relative] or [True] then press the ENTER
key.
5. Press the MENU key to close the menu.
1.17
How to Measure the Range and Bearing Between
Two Targets
You can move the origin of the EBL to measure the range and bearing between two
targets.
1. Press the EBL key to select the bearing indication of EBL 1 or EBL 2. The indication of the currently active EBL is in a rectangle.
2. Use the Cursorpad to put the cursor on the center of the target A.
3. Press the OFF CENTER key to move the origin of the EBL to the location selected
at step 2.
4. Use the Cursorpad to put the cursor on the center of the target B.
5. Press the VRM key to display the VRM having the same number as the EBL activated at step 1. The indication of the currently active VRM is in a rectangle.
6. Use the Cursorpad to set the VRM on the inner edge of the target B.
1-19
1. DESCRIPTION OF OPERATION
7. Read the bearing and range indications at the bottom of the screen.
EBL 2
EBL 1
+Target B
VRM 1
Target D
Target A
EBL origin
Target C
EBL
VRM
45.0° R
0 . 5 5 0 NM
327.0° R
0 . 5 5 0 NM
Range/bearing between
targets A and B
VRM 2
Range/bearing between
targets C and D
How to measure the range and bearing between two targets
When you press the OFF CENTER key in EBL operation, the origin of an EBL moves
between the screen center and cursor location. To return the origin of an EBL to the
screen center, press the ENTER key when the origin of an EBL is on the screen center.
1.18
How to Select a Pulselength
The pulselength in use appears at the upper-left position on the screen. The pulselengths are set to each range scale and custom setup. You can change the pulselength on the 1.5 nm, 1.6 nm, 3 nm or 3.2 nm range with the following procedure.
Pulselength cannot be changed on other ranges. (You can change the pulselength on
the 2 nm or 4 nm range in the [Russian-River] mode.) Use a longer pulse when your
purpose is long range detection. Use a shorter pulse when the resolution is important.
Note: Press the CUSTOM key several times to activate the [Echo] menu until the CS
1 (2, 3) indication (custom setting) disappears from the screen. See the illustration in
section 1.3.
1. Press the MENU key to open the menu.
1-20
1. DESCRIPTION OF OPERATION
2. Use the Cursorpad (S or T) to select [Echo] and press the ENTER key.
Echo menu
3. Use the Cursorpad (S or T) to select [Pulse Length] and press the ENTER key.
Pulse Length options
4. Use the Cursorpad (S or T) to select [Short] or [Long] then press the ENTER key.
The pulselength indication at the upper-left corner changes according to your selection as shown below.
1.5 nm or 1.6 nm (or 2 nm in the [Russian-River] mode): "SP" for [Short] pulse,
"MP" for [Long] pulse
3 nm or 3.2 nm (or 4 nm in the [Russian-River] mode): "MP" for [Short] pulse, "LP"
for [Long] pulse
5. Press the MENU key to close the menu.
1.19
Target Alarm
The target alarm looks for targets
(ship, landmass, etc.) in the area
you set. Audiovisual alarms are
released when a target enters (or
exits) the alarm area.
CAUTION
· Do not depend on the alarm as the only
means to detect possible collision
situations.
· Adjust the A/C SEA, A/C RAIN and GAIN
controls correctly so that the alarm
system does not miss the target echoes.
1-21
1. DESCRIPTION OF OPERATION
1.19.1
How to set a target alarm zone
The following procedure shows you how to set a target alarm zone.
1. Press the TARGET ALARM key to activate ALARM 1 or ALARM 2. Press the
TARGET ALARM key to change the active ALARM between No. 1 and No. 2. The
indication of the currently active ALARM is in a rectangle at the upper-right corner
of the screen.
2. Use the Cursorpad to move the cursor to the position A and press the ENTER key.
3. Move the cursor to the position B and press the ENTER key. The rectangle that
shows alarm status indication at the upper-right corner of the screen disappears.
Target alarm zone 1
(Length of dash
and interval for
alarm zone 2 are
longer than alarm
zone 1.)
ALM1_IN
ALM2_OUT
Alarm status
+B
Cursor
How to set a target alarm zone
Note 1: To set a 360-degree guard zone, set the position B in the same bearing as the
position A.
Note 2: When the target alarm zone is not within the range in use, the indication
"ALM1(or 2)_RNG" replaces "ALM1(or 2)_IN(or OUT)" in the alarm status area.
(When the target alarm zone is within the range of full off-centering, the indication
does not change.) Select a range which displays the target alarm zone.
1.19.2
How to stop the audio alarm
When a target enters (or exits) the target alarm zone, the target flashes and the alarm
sounds. The alarm message appears at the bottom of the screen. To stop the audio
alarm, press any key. When the target enters (or exits) the target alarm zone again,
the audio alarm sounds.
1-22
1. DESCRIPTION OF OPERATION
1.19.3
How to select the alarm type
You can set the target alarm to activate against targets entering or exiting the alarm
zone.
“In” target alarm
“Out” target alarm
In and Out target alarms
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Alarm] and press the ENTER key.
Alarm menu
3. Use the Cursorpad (S or T) to select [Target Alarm 1] or [Target Alarm 2] then
press the ENTER key.
Target Alarm options
4. Use the Cursorpad (S or T) to select [In] or [Out].
[In]: When the targets enter a target alarm zone, the alarm sounds.
[Out]: When the targets exit a target alarm zone, the alarm sounds.
5. Press the ENTER key followed by the MENU key.
1.19.4
How to sleep a target alarm temporarily
When you do not require a target alarm temporarily, you can sleep the target alarm.
The alarm zone remains on the screen, but any targets that enter (or exit) the alarm
zone do not trigger the audio and visual alarms.
1. Press the TARGET ALARM key to select the ALARM 1 or ALARM 2 indication at
the upper-right corner on the screen. The selected indication is in a rectangle.
1-23
1. DESCRIPTION OF OPERATION
2. Press the CANCEL/HL OFF key. The alarm indication now shows "ALM1(or
2)_ACK".
To activate a sleeping target alarm zone, press the TARGET ALARM key to select the
ALARM 1 or ALARM 2 and press the ENTER key. The alarm indication then changes
to "ALM1(or 2)_IN(or OUT)".
1.19.5
How to deactivate a target alarm
1. Press the TARGET ALARM key to select the ALARM 1 or ALARM 2 indication at
the upper-right corner on the screen. The selected indication is in a rectangle.
2. Press the CANCEL/HL OFF key. The alarm indication now shows "ALM1(or
2)_ACK".
3. Press the TARGET ALARM key. The alarm indication "ALM1(or 2)_ACK" is
shown in a dashed-line rectangle.
4. Press the CANCEL/HL OFF key. The target alarm zone and the alarm indication
are erased from the screen.
1.19.6
How to select the target strength which triggers a target alarm
You can select the target strength which triggers the target alarm as follows:
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Alarm] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Alarm Level] and press the ENTER key.
Alarm Level options
4. Use the Cursorpad (S or T) to select the echo strength level.
5. Press the ENTER key followed by the MENU key.
1.19.7
How to turn the buzzer on/off
You can turn on/off the panel buzzer or external buzzer for target alarms. The panel
buzzer is for this equipment. The external buzzer is for the optional buzzer, which is
connected to this equipment to give the target alarm at a remote location.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Alarm] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Panel Buzzer] (or [External Buzzer] for optional buzzer) and press the ENTER key.
Panel Buzzer and External Buzzer options
4. Use the Cursorpad (S or T) to select [On] or [Off] then press the ENTER key.
5. Press the MENU key to close the menu.
1-24
1. DESCRIPTION OF OPERATION
1.20
How to Off-center the Display
You can off-center your ship position to expand the view field without selecting a larger
range scale. The display can be off-centered manually, or automatically according to
speed of the ship.
Note: Off-centering is not available in the true motion mode.
1.20.1
How to select the off-center mode
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Display] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Offcenter Mode] and press the ENTER
key.
Press the ENTER key
to change between
on and off.
Offcenter Mode options
4. Use the Cursorpad (S or T) to select [Manual], [Custom] or [Auto] then press the
ENTER key. Press the ENTER key to change between on and off.
5. After setting all options, use the Cursorpad (T) to select [EXIT? YES] and press
the ENTER key.
6. Press the MENU key to close the menu.
1.20.2
Off-center the display
Press the OFF CENTER key to move your ship position. When you press the OFF
CENTER key continuously, the mode changes in the sequence of OFF → Manual →
Custom → Auto → OFF → Manual → ... (the options available depend on setting selected at step 4 in section 1.20.1). When off-centering is active, "OFFCENT(M)",
"OFFCENT(C)" or "OFFCENT(A)" appears at the upper-left corner on the display.
Note: Off-center is not available on the 64 nm range scale.
Manual (Indication: "OFFCENT(M)")
You can move your ship position to the current cursor position on all modes except
true motion, within 75% of the available display area.
1. Press the OFF CENTER key several times until the off-center indication disappears.
2. Put the cursor on the position where to off-center the display.
3. Press the OFF CENTER key several times until the indication "OFFCENT(M)" appears.
1-25
1. DESCRIPTION OF OPERATION
Custom (Indication: "OFFCENT(C)")
You can move your ship position to the position which you pre-set. Follow the procedure shown below to register the cursor position.
1. Press the OFF CENTER key several times until the off-center indication disappears.
2. Put the cursor on the position where to off-center the display.
3. Press the OFF CENTER key several times until the indication "OFFCENT(M)" appears.
4. Press the MENU key to open the menu.
5. Use the Cursorpad (S or T) to select [Display] and press the ENTER key.
6. Use the Cursorpad (S or T) to select [Save Offcenter] and press the ENTER key.
The message "Complete" appears.
7. Press any key to close the message window.
8. Press the MENU key to close the menu.
To change the mode to custom, press the OFF CENTER key several times until the
indication "OFFCENT(C)" appears.
Auto (Indication: "OFFCENT(A)")
The amount of automatic move is calculated according to speed of the ship. The maximum amount is 75% of the range in use. The formula to calculate automatic shift is
shown below.
Speed of ship
X 0.75 = Amount of move (%)
Offcenter speed setting
If the offcenter speed setting is 15 knots and the speed of the ship is 10 knots, for example, the amount of move at the stern of your ship will be 50% of the available display
area.
How to select offcenter speed
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Initial] sub menu in [System] menu and
press the ENTER key.
3. Use the Cursorpad (S or T) to select [Offcenter Speed] and press the ENTER
key.
Offcenter Speed setting window
4. Use the Cursorpad (S or T) to select the speed to use and press the ENTER key.
5. Press the MENU key to close the menu.
1-26
1. DESCRIPTION OF OPERATION
1.21
Zoom
The zoom function expands the length and width of a selected target as much as twice
its normal size, in the zoom window. You select the target to zoom with the zoom cursor. The selected target is zoomed in the zoom window.
ARPA and AIS symbols can be displayed in the zoom window, but are not zoomed.
You can process ARPA and AIS targets that are in the zoom window, in the same
method as on the normal radar display.
There are three types of zoom.
[Relative]: The zoom cursor is fixed to the range and bearing from your ship.
[True]: The zoom cursor is fixed to set geographical position.
[Target]: The zoom cursor is fixed to the zoomed AIS or ARPA target.
1.21.1
Zoom mode
You can select the zoom mode from [Relative], [True] or [Target].
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Display] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Zoom Mode] and press the ENTER key.
Zoom Mode options
4. Use the Cursorpad (S or T) to select [Relative], [True] or [Target] then press the
ENTER key.
Note: True zoom mode requires a heading signal and position data.
5. Press the MENU key to close the menu.
1.21.2
How to zoom
Relative or True zoom mode
1. Use the Cursorpad to put the cursor on the position desired.
2. Press the MENU key to open the menu.
3. Use the Cursorpad (S or T) to select [Display] and press the ENTER key.
4. Use the Cursorpad (S or T) to select [Zoom] and press the ENTER key.
Zoom options
5. Use the Cursorpad (S or T) to select [On] and press the ENTER key.
The ZOOM indication appears at the upper-left corner on the screen. The zoom
window and the zoom cursor also appear (see the illustration on the next page).
To quit the zoom, select [Off] instead of [On] and press the ENTER key.
6. Press the MENU key to close the menu.
1-27
1. DESCRIPTION OF OPERATION
Target zoom mode
The ARPA or AIS target as below can be displayed in the zoom window:
ARPA: The symbol is enlarged twice its normal size.
AIS: The symbol is enclosed in a broken square. (The symbol is not enlarged.)
The zoom cursor moves with the ARPA or AIS target.
Note: If neither ARPA nor AIS targets are selected, the message "NO TARGET." appears. Press any key to erase the message.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Display] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Zoom] and press the ENTER key.
4. Use the Cursorpad (S or T) to select [On] and press the ENTER key.
The ZOOM indication appears at the upper-left corner on the screen. The zoom
window and the zoom cursor also appear (see the following illustration). To quit
the zoom, select [Off] instead of [On] and press the ENTER key.
5. Press the MENU key to close the menu.
1.5NM
1.5NM
Zoom indication
ZOOM(T)
ZOOM(T)
Zoom cursor
999999000
Zoom window
999999000
VECT TRUE 05:00
2 5 5 . 5 °R
1 . 0 9 4 NM
Relative or True zoom mode
(example: true zoom)
1-28
VECT TRUE 05:00
2 5 5 . 5 °R
1 . 0 9 4 NM
Target zoom mode
(example: AIS)
1. DESCRIPTION OF OPERATION
1.22
Echo Stretch
The echo stretch feature enlarges the targets in the range and bearing directions to
make the targets easier to see. This feature is available on any range. There are three
levels of echo stretch, [1], [2] and [3]. [3] enlarges the targets the most.
Note: The echo stretch magnifies the targets, sea and rain clutters, and radar interference. Correctly adjust the sea clutter, rain clutter and radar interference before you activate the echo stretch.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Echo] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Echo Stretch] and press the ENTER key.
Echo Stretch options
4. Use the Cursorpad (S or T) to select an echo stretch option and press the ENTER key.
5. Press the MENU key to close the menu. When the echo stretch is active, "ES 1
(2, or 3)" appears at the lower-left corner on the display.
1.23
Echo Average
To identify true target echoes from the sea clutter, echoes are averaged over successive picture frames. If an echo is solid and stable, the echo is shown in its normal intensity. The brilliance of sea clutter is reduced to easily identify true targets from the
sea clutter.
Note 1: Do not use the echo average function under heavy pitching and rolling. You
can lose a target.
Note 2: This feature requires a heading signal and position data. When either signal
becomes lost, echo average is deactivated.
To correctly use the echo average function, first reduce the sea clutter with the A/C
SEA control, then do as follows:
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Echo] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Echo Average] and press the ENTER key.
Echo Average options
1-29
1. DESCRIPTION OF OPERATION
4. Use the Cursorpad (S or T) to select an echo averaging option and press the ENTER key.
[Off]: Deactivate the echo average.
[1]: Identify true targets from the sea clutter and reduce the brilliance of unstable
echoes.
[2]: Identify true targets from the sea clutter that you cannot reduce the brilliance
with setting 1.
[Auto]: Identify true targets from the sea clutter. Detect far and unstable targets.
5. Press the MENU key to close the menu. The selected echo average ("EAV 1",
"EAV 2" or "EAV(A)") appears at the lower-left corner of the display.
1.24
Target Trails
The trails of the radar targets can be shown simulated in afterglow to check target
movement. The target trails are selected for either relative or true. True motion trails
require a heading signal and position data.
1.24.1
Trail time
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Target Trails] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Time] and press the ENTER key.
Press the ENTER key
to change between
on and off.
Time options
4. Use the Cursorpad (S or T) to select time and press the ENTER key. Press the
ENTER key to change between on and off.
5. After setting all options, use the Cursorpad (T) to select [EXIT? YES] and press
the ENTER key.
6. Press the MENU key to close the menu.
1-30
1. DESCRIPTION OF OPERATION
1.24.2
How to start, stop the trails
1. Press the TRAILS key to start the trails and select the trail time. The selected time
with the trail mode is shown at the upper-right corner as in the figure shown below.
The available trail time with the TRAILS key changes according to trail times,
which you turn on in section 1.24.1.
Trail Mode (T: True, R: Relative)
Trail Time
TRAIL(T)
15 S
Trail indications
2. To change the trail time, press the TRAILS key until the desired trail time is displayed. The trail lengthens with the trail time.
Note 1: To erase the trails, press and hold the TRAILS key until a beep sounds, or
select [All Cancel] on the [Target Trails].
Note 2: To deactivate the trails, press the TRAILS key several times until the trail indications disappear from the display.
1.24.3
Trail mode
You can display the echo trails in true or relative motion.
True mode
The true trails show true target movements according to their over-the-ground speeds
and courses. The stationary targets do not show the trails. The true trails require a
heading signal and position data.
Relative mode
The relative trails show other ships’ movements relative to your ship. The stationary
targets also show the trails.
True target trails
Relative target trails
True trails and relative trails
To select the trail mode, do the following:
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Target Trails] and press the ENTER key.
1-31
1. DESCRIPTION OF OPERATION
3. Use the Cursorpad (S or T) to select [Mode] and press the ENTER key.
Mode options
4. Use the Cursorpad (S or T) to select [Relative] or [True] then press the ENTER
key.
5. Press the MENU key to close the menu.
1.24.4
Trail gradation
Trails can be shown in single or multiple gradation. Multiple gradation fades the gradation over time.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Target Trails] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Gradation] and press the ENTER key.
Gradation options
4. Use the Cursorpad (S or T) to select [Single] or [Multi] then press the ENTER
key.
Single
(Monotone shading)
Multiple
(Gradual shading)
Trail gradation
5. Press the MENU key to close the menu.
1.24.5
Trail color
You can select the color for trails as follows:
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Target Trails] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Color] and press the ENTER key.
Color options
4. Use the Cursorpad (S or T) to select a color and press the ENTER key.
5. Press the MENU key to close the menu.
1-32
1. DESCRIPTION OF OPERATION
1.24.6
Trail level
You can select which target strength to display.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Target Trails] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Level] and press the ENTER key.
Level options
4. Use the Cursorpad (S or T) to select [1], [2] or [3] then press the ENTER key.
[1]: Display the trails for all targets (including weak targets).
[2]: Display the trails for medium-to-strong level targets.
[3]: Display the trails for only strong targets.
5. Press the MENU key to close the menu.
1.24.7
How to restart, stop the trails
When the range is changed while the trail feature is active, trails within the previous
range scale can be stopped and restarted.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Target Trails] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Restart] and press the ENTER key.
Restart options
4. Use the Cursorpad (S or T) to select [Off] or [On] then press the ENTER key.
[Off]: The previous trails data are saved when the range is changed. The trails are
not restarted and the saved trails are not updated. When you return the range
scale to the previous range scale, the saved trails are displayed and updated.
[On]: The previous trails are zoomed in or out depending on the changed scale
and updated.
Copied trail picture
Before changing range
After changing range
How trail copy operates
1-33
1. DESCRIPTION OF OPERATION
Note: If the newly selected range is less than or equal to 1/4 of the previous range,
trails are erased. If the newly selected range is longer than the previous range, the
previous trails are left to be displayed.
5. Press the MENU key to close the menu.
1.24.8
Narrow trails
You can display the target trails in thin trails. When there are many targets on the
screen, you can separate trails close to one another with this function.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Target Trails] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Narrow] and press the ENTER key.
Narrow options
4. Use the Cursorpad (S or T) to select [Off] or [On] then press the ENTER key.
5. Press the MENU key to close the menu.
1.24.9
Your ship trail
You can show the trail of your ship as follows:
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Target Trails] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [Own Ship] and press the ENTER key.
Own Ship options
4. Use the Cursorpad (S or T) to select [Off], [1] or [2] then press the ENTER key.
[Off]: Hide the trail of your ship.
[1]: Show the trail of your ship.
[2]: Show the trail of your ship, but hide the trail of sea clutter near your ship.
5. Press the MENU key to close the menu.
1.25
How to Send the Target Position and Enter the
Origin Mark
The TLL key functions to send the cursor position to a chart plotter and put an origin
mark ( ) at the cursor position on the radar. Use the Cursorpad to put the cursor on
a target and press the TLL key. You can enter up to 20 origin marks on the radar display. When the capacity for origin marks is reached, the oldest mark is erased to make
room for the latest mark, to keep a maximum of 20 marks. To erase a mark, put the
cursor on the mark and press the CANCEL/HL OFF key.
1-34
1. DESCRIPTION OF OPERATION
TLL key mode
You can select how to handle TLL position.
1. Press the MENU key to open the menu.
2. Use the Cursorpad (S or T) to select [Others] and press the ENTER key.
3. Use the Cursorpad (S or T) to select [TLL Key Mode] and press the ENTER key.
TLL Key Mode options
4. Use the Cursorpad (S or T) to select [TLL Output], [Origin Mark] or [Both] then
press the ENTER key.
[TLL Output]: Send the latitude and longitude of the cursor position to a chart
plotter. (Position and heading signal are required.)
[Origin Mark]: Enter an origin mark at the cursor position on the radar display.
(Position and heading signal are required.)
[Both]: Send the target position to a chart plotter and enter an origin mark on the
radar display.
5. Press the MENU key to close the menu.
Note: When you turn off the power, all origin marks are deleted and not saved.
1.26
How to Hide the Heading Line Temporarily
The heading line indicates the heading of your ship in all display modes. The heading
line is a line from your ship position to the outer edge of the radar display area. The
heading line appears at zero degrees on the bearing scale in head-up and true view
modes. The heading line changes the orientation depending on the ship orientation in
north-up and true motion modes and when the course is changed in the course-up
mode.
To hide the heading line (and all marks for River and Sea purpose) and display only
targets, press and hold the CANCEL/HL OFF key. To display the heading line again,
release the key.
1.27
Presentation Brilliance
You can adjust the brilliance for the following menu items from the [Brill/Color] menu.
[Echo Brill]: Brilliance for the echoes (setting range: 1 - 8)
[Rings Brill]: Brilliance for the range rings (setting range: Off, 1 - 4)
[Mark Brill]: Brilliance for the marks (EBL, VRM, etc.) (setting range: 1 - 4)
[HL Brill]: Brilliance for the heading line (setting range: 1 - 4)
[Character Brill]: Brilliance for the characters (setting range: 1 - 4)
1-35
1. DESCRIPTION OF OPERATION
1.28
Custom Setup
1.28.1
About custom setup
When your navigating environment or task changes, you must adjust the radar. Instead of changing radar settings case by case, you can assign the CUSTOM key to
provide best settings for common conditions.
There are three default custom setups for the internal computer of the radar (see the
table on the next page). You can adjust these settings on the [Custom 1], [Custom 2]
and [Custom 3] menus to meet your navigation needs.
To activate a custom setup, press the CUSTOM key. The CUSTOM key switches between Custom 1, Custom 2 or Custom 3 each time you press the key. (Custom setup
numbers which are turned off are ignored.) The selected custom setup name is shown
at the upper-left corner. To escape from custom setup, operate any control.
1.28.2
Description of custom setup items
Description of custom setup items
Menu item
Available settings
See section
[Custom1(2 or 3)]
Turn on/off each custom program.
[Copy]
Copy settings from the [Echo] menu. The message "Complete" appears after the copying is completed.
[Gain Mode]
[Auto]: Automatic gain adjustment according to noise level
[Manual]: Manual gain adjustment
[Manual Gain]
Copy the current position of the GAIN knob when you do
[Copy]. This item is for read-only.
[Sea Mode]
[Auto]: Automatic sea clutter adjustment according to sea
state
[Manual]: Manual sea clutter adjustment
1.10
[Auto Sea]
[Coastal]: Suppress both land and sea clutter.
[Advanced]: Automatically discriminate land echoes from
sea reflections to suppress only sea reflections.
1.10
[Manual Sea]
Copy the current position of the A/C SEA knob when you do
[Copy]. This item is for read-only.
[Rain Mode]
[Auto]: Automatic rain clutter adjustment according to rain
cloud
[Manual]: Manual rain clutter adjustment
1.11
[Auto Rain]
[Calm]: For light rain
[Moderate]: When you can not reduce the rain clutter with
[Calm] mode
[Rough]: For heavy rain
1.11
[Manual Rain]
Copy the current position of the A/C RAIN knob when you do
[Copy]. This item is for read-only.
[A/C Auto]
[Off], [On]
1-36
1.9
1.12
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