Furuno FAR2258 Operators Manual

OPERATOR'S MANUAL

MARINE RADAR

FAR-2218
FAR-2218-BB
FAR-2228
FAR-2228-NXT
FAR-2228-BB
FAR-2238S
FAR-2238S-BB

Model

FAR-2238S-NXT
FAR-2238S-NXT-BB
FAR-2258
FAR-2268DS
FAR-2318
FAR-2328
FAR-2328-NXT
FAR-2338S
FAR-2338S-NXT
FAR-2018-MARK-2
FAR-2028-MARK-2

(FISHING SPECIFICATION)

www.furuno.com

9-52 Ashihara-cho,

A:OCT

2018

.

H:JUN.27, 2023

Pub. No.

(

)

Nishinomiya, 662-8580, JAPAN

・FURUNO Authorized Distributor/Dealer

All rights reserved.

REFU

FAR-2218F

Printed in Japan

OME-36521-H

0 0 0 1 9 5 6 2 2 1 7

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 instructions in this manual.
Wrong operation or maintenance can void 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 the 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
void the warranty.

• The following concern acts as our importer in Europe, as defined in DECISION No 768/2008/EC.

- Name: FURUNO EUROPE B.V.

- Address: Siriusstraat 86, 5015 BT, Tilburg, The Netherlands

• The following concern acts as our importer in UK, as defined in SI 2016/1025 as amended SI 2019/

470.

- Name: FURUNO (UK) LTD.

- Address: West Building Penner Road Havant Hampshire PO9 1QY, U.K.

™

• InstantAccess bar

• SDHC is a registered trademark of SD-3C, LLC.

• All brand, product names, trademarks, registered trademarks, and service marks belong to their
respective holders.

is a registered trademark of FURUNO Electric co., Ltd.

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, see the chapter
on Maintenance. Follow the instructions below if a battery is used. Tape the + and - terminals of bat­tery before disposal to prevent fire, heat generation caused by short circuit.

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.

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.

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.

Ni-Cd Pb

Cd

i

SAFETY INSTRUCTIONS

WARNINGWARNING

WARNINGWARNING

Before servicing the radar, turn off
the appropriate external breaker.

ELECTRICAL SHOCK HAZARD.
Do not open the equipment.

Turn off the radar power switch
before servicing the antenna
unit. Post a warning sign near
the switch indicating it should
not be turned on while the
antenna unit is being serviced.

Only qualified personnel should
work inside the equipment.

Use the proper fuse.

Use of a wrong fuse can result in
damage to the equipment or
cause fire.

If the antenna rotates while there
is personnel nearby or servicing
the antenna, injury or death may
result.

Do not place liquid-filled contain­ers near the equipment.

Fire or electrical shock can result if a
liquid spills into the equipment.

Do not operate the equipment
with wet hands.

Electrical shock can result.

Keep heater away from equipment.

Heat can alter equipment shape
and melt the power cord, which can
cause fire or electrical shock.

Do not disassemble or modify
the equipment.

Fire, electrical shock or serious
injury can result.

Immediately turn off the power
at the ship’s mains switchboard
if water leaks into the equip­ment or the equipment is emit­ting smoke or fire.

Continued use can cause fatal
damage to the equipment.

This equipment has a valid
latitude range of 85°N to 85°S.
Operation outside of this range
can result in a larger margin of
error when calculating position,
heading, bearing, etc.

Power is not removed from the radar
simply by turning off its power switch.

DANGER

WARNING

CAUTION

The operator must read the applicable safety instructions before attempting to operate the equipment.

Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided,
could result in minor or moderate injury.

Warning, Caution Prohibitive Action Mandatory Action

ii

SAFETY INSTRUCTIONS

The radar antenna emits electromagnetic radio frequency (RF) energy that 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 level of 100, 50 and 10 W/m

2

are given in the table below.

Note: If the antenna unit is installed at a close distance in front of the wheel house, your admin­istration may require halt of transmission within a certain sector of antenna revolution. This is
possible. Ask your FURUNO representative or dealer to provide this feature.

Radio Frequency Radiation Hazard

WARNING

*: The following numerical values, shown in the antenna types, indicate antenna length.
[12]: 4 ft, [20]: 6.5 ft, [24]: 8 ft, [30]: 10 ft, [36]: 12 ft

**: Unavailable on IMO-type radars ***: 500 W, for Japanese flag vessels.

Model Transceiver

Magnetron

Antenna*

100 W/m250 W/m

2

10 W/m

2

Magnetron
radar

Solid state
radar

FAR-2218(-BB)
FAR-2318

FAR-2228(-BB)
FAR-2328

FAR-2018-MARK-2

FAR-2028-MARK-2

FAR-2238S(-BB)
FAR-2338S

FAR-2238S-NXT(-BB)
FAR-2338S-NXT

FAR-2258

FAR-2268DS

RTR-105 (12 kW)

RTR-106 (25 kW)

RTR-107 (30 kW)

RTR-111 (250 W)

RTR-122 (50 kW)

RTR-129 (60 kW)

RTR-131 (12 kW)

RTR-132 (25 kW)

FNE1201

MG5436

MG5223F

9M31

MG5240F

XN12CF
XN20CF
XN24CF
XN12AF
XN20AF
XN24AF
XN12CF
XN20CF
XN24CF
XN12AF
XN20AF

XN24AF
SN24CF**
SN30CF**

SN36CF

XN24AF

XN30AF

SN30AF**

SN36CF**

SN30DF

XN12CF

XN20CF

XN24CF
SN24CF**
SN30CF**

SN36CF

0.6 m

0.4 m

0.3 m

0.25 m

0.17 m
N/A

1.3 m

1.0 m

0.7 m

0.82 m

0.51 m

0.3 m

1.7 m

1.4 m
N/A

2.3 m

2.3 m

1.42 m

1.3 m

1.65 m

0.3 m

0.24 m

0.19 m
N/A
N/A
N/A

1.4 m

0.9 m

0.6 m

0.73 m

0.42 m

0.28 m

2.7 m

1.7 m

1.3 m

1.8 m

0.93 m

0.7 m

2.4 m

2.1 m

0.5 m

4.5 m

4.3 m

3.15 m

3.0 m

3.3 m

1.7 m

0.32 m

0.29 m
N/A
N/A
N/A

4.4 m

3.0 m

2.5 m

4.2 m

2.6 m

1.73 m

9.5 m

6.8 m

5.5 m

8.84 m

5.76 m

4.01 m

3.8 m

3.4 m

4.6 m

13.9 m

13.9 m
15 m
16 m

15.6 m

3.3 m

1.9 m

1.6 m
N/A
N/A

1.0 m

WARNINGWARNING

WARNINGWARNING

Make sure no rain or water
splash leaks into the equipment.

Fire or electrical shock can
result if water leaks into the
equipment.

Keep the area around the
antenna free of ropes and other
items that may get tangled.

If the antenna becomes tangled,
damage to the equipment or
injury to personnel may occur.

RTR-123

䠄600W***䠅

FAR-2228-NXT
FAR-2328-NXT

iii

SAFETY INSTRUCTIONS

DISPLAY UNIT,
POWER SUPPLY UNIT &
PROCESSOR UNIT

Name: Warning Label 1
Type: 86-003-1011-3
Code No.: 100-236-233-10

TRANSCEIVER UNIT
(RTR-105/106/107/108/109)

Name: Warning Label
Type:

03-160-1042-0

Code No.: 100-302-750-10

WARNING

To avoid electrical shock, do not
remove cover. No user-serviceable
parts inside.

WARNING LABEL
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.

WARNINWARNING

CAUTIONCAUTION

No one navigational aid should be relied
upon for the safety of vessel and crew.
The navigator has the responsibility to
check all aids available to confirm
position. Electronic aids are not a
substitute for basic navigational
principles and common sense.

This TT automatically tracks automatically or
manually acquired radar targets and
calculates their courses and speeds,
indicating them by vectors. Since the data
generated by the auto plotter are based on
what radar targets are selected, the radar
must always be optimally tuned for use with
the auto plotter, to ensure required targets
will not be lost or unwanted targets such as
sea returns and noise will not be acquired
and tracked.

A target does not always mean a land-mass,
reef, ships or other surface vessels but can
imply returns from sea surface and clutter.
As the level of clutter changes with
environment, the operator should properly
adjust the A/C SEA, A/C RAIN and GAIN
controls to be sure target echoes are not
eliminated from the radar screen.

The plotting accuracy and response of
this TT meets IMO standards. Tracking
accuracy is affected by the following:

The data generated by TT, AIS and
video plotter are intended for
reference only.

Do not depend on one navigation
device for the navigation of the vessel.

Tracking accuracy is affected by course
change. One to two minutes is required to
restore vectors to full accuracy after an
abrupt 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 target tracking and pertinent vector
calculation accuracy is influenced by the
following:

- Echo intensity

- The range measurement accuracy;
characterized by both random and biased
measurement errors.

- The angular measurement accuracy;
characterized by beam shape, target glint
and bias errors.

- Radar transmission pulsewidth

- Gyrocompass heading error

- Speed log error

- Curent and wind (set & drift)

- Course change (own ship and target)

Refer to official nautical charts for detailed and
up-to-date information.

Always check your position against all
available aids to navigation, for the safety
of the vessel and crew.

DANGER

Electrical shock hazard.
Turn off power before
servicing.

This equipment is not suitable for use
in locations where children are likely
to be present.

iv

TABLE OF CONTENTS

FOREWORD................................................................................................................. xiv

SYSTEM CONFIGURATION ......................................................................................... xx

1. OPERATIONAL OVERVIEW.................................................................................1-1

1.1 Controls Overview ......................................................................................................1-1

1.1.1 Control Unit RCU-014 ....................................................................................1-1

1.1.2 Control Unit RCU-031 (C-types only).............................................................1-4

1.1.3 Control Unit RCU-015/RCU-016 ....................................................................1-7

1.2 How to Turn the Radar On/Off....................................................................................1-8

1.3 How to Adjust the Brilliance........................................................................................1-9

1.4 Display Overview........................................................................................................1-9

1.4.1 Display examples ...........................................................................................1-9

1.4.2 InstantAccess bar

1.5 Menu Operations ......................................................................................................1-17

1.5.1 How to open and close the main menu........................................................1-17

1.5.2 How to operate the menus ...........................................................................1-18

1.5.3 Alphanumeric input.......................................................................................1-19

1.6 How to Use the On-screen Box Menus ....................................................................1-20

1.7 [CURSOR] Menu and Cursor Operations.................................................................1-21

1.7.1 How to show/hide the cursor (C-type only) ..................................................1-21

1.7.2 Cursor data box............................................................................................1-21

1.7.3 How to Use the [CURSOR] Menu ................................................................1-22

1.7.4 How to change the cursor data attributes (C-type only) ...............................1-23

1.8 Function Keys...........................................................................................................1-24

1.8.1 How to set the function key mode (C-types only).........................................1-24

1.8.2 How to use the function keys .......................................................................1-25

1.8.3 How to change the function(s) assigned to a key.........................................1-26

1.9 How to Customize Operation....................................................................................1-27

1.10 Heading Input ...........................................................................................................1-30

1.10.1 How to select the data source for heading input ..........................................1-30

1.10.2 How to adjust for magnetic correction (C-types only)...................................1-30

1.11 How to Set Own Ship’s Speed .................................................................................1-31

1.11.1 Automatic speed input (log or EPFS navigator) ...........................................1-31

1.11.2 Manual speed input......................................................................................1-32

1.12 Own Ship Position ....................................................................................................1-33

1.12.1 How to set the Own Ship position ................................................................1-33

1.12.2 How to set the display format for position data (C-types only).....................1-34

1.12.3 How to select the datum to use for positioning (C-types only) .....................1-34

1.13 Date and Time..........................................................................................................1-35

1.13.1 How to switch between UTC and local date/time.........................................1-35

1.13.2 How to adjust the local time .........................................................................1-35

1.13.3 How to change the date/time display format (C-types only).........................1-36

1.14 User Settings (IMO-types only) ................................................................................1-36

1.14.1 How to reset the user settings......................................................................1-38

1.14.2 How to save/load user settings ....................................................................1-38

1.15 How to Start/Stop Transmission...............................................................................1-39

1.16 How to Tune the Receiver (Magnetron Radars Only) ..............................................1-40

1.16.1 How to select the tuning method..................................................................1-40

1.16.2 How to initialize tuning..................................................................................1-40

1.16.3 How to tune the receiver manually...............................................................1-41

1.17 How to Select a Pulselength.....................................................................................1-41

1.17.1 How to select a pulselength .........................................................................1-41

™

......................................................................................1-15

v

TABLE OF CONTENTS

1.17.2 How to change the preset pulselength......................................................... 1-42

1.18 MOB Mark................................................................................................................ 1-42

1.19 How to Adjust Sensitivity..........................................................................................1-43

1.20 How to Reduce Sea Clutter......................................................................................1-44

1.20.1 How to select the method of clutter adjustment ...........................................1-44

1.20.2 How to fine-tune sea clutter reduction..........................................................1-44

1.20.3 How to manually reduce sea clutter.............................................................1-45

1.20.4 How to use the BERTHING STC function.................................................... 1-45

1.21 How to Reduce Rain Clutter.....................................................................................1-46

1.21.1 How to select the method of rain clutter reduction.......................................1-46

1.21.2 How to fine-tune rain clutter reduction ......................................................... 1-46

1.21.3 How to manually reduce the rain clutter....................................................... 1-47

1.22 Interference Rejector................................................................................................1-49

1.23 Echo Stretch.............................................................................................................1-50

1.24 Echo Averaging........................................................................................................ 1-51

1.25 Automatic Clutter Elimination (ACE) Function ......................................................... 1-53

1.25.1 How to turn the Automatic Clutter Elimination (ACE) function on/off...........1-53

1.25.2 How to adjust the gain in Automatic Clutter Elimination (ACE) mode.......... 1-53

1.25.3 How to get high sensitivity............................................................................1-54

1.25.4 How to suppress false echoes .....................................................................1-54

1.26 Noise Rejector..........................................................................................................1-55

1.27 Wiper........................................................................................................................ 1-55

1.28 How to Preset Controls for a Specific Navigation Purpose...................................... 1-56

1.28.1 How to select a customized echo.................................................................1-61

1.28.2 How to edit a customized echo ....................................................................1-62

1.28.3 How to restore a user customized echo to the saved settings..................... 1-64

1.28.4 How to restore a user customized echo to the factory default settings........ 1-64

1.28.5 How to edit the available customized echoes..............................................1-64

1.28.6 How to change the name of a customization (C-types only)........................ 1-65

1.28.7 How to link the customization with a range (C-types only)...........................1-66

1.29 How to Reject Second-trace Echoes .......................................................................1-67

1.30 Orientation Modes.................................................................................................... 1-68

1.30.1 How to select an presentation mode............................................................1-68

1.30.2 Description of presentation modes...............................................................1-68

1.31 How to Select a Range Scale .................................................................................. 1-70

1.32 How to Measure Range ........................................................................................... 1-71

1.32.1 How to show/hide the range rings................................................................ 1-71

1.32.2 How to measure range with the variable range marker (VRM).................... 1-71

1.32.3 How to set the VRM unit of measurement (C-types only)............................ 1-73

1.32.4 How to set the short distance measurement unit (C-types only)..................1-73

1.32.5 How to show TTG to VRM ........................................................................... 1-74

1.33 How to Measure Bearing..........................................................................................1-74

1.33.1 Methods to measure bearing ....................................................................... 1-75

1.33.2 True or relative bearing................................................................................1-76

1.34 Collision Assessment by Offset EBL........................................................................1-77

1.34.1 How to assess risk of collision using the offset EBL ....................................1-77

1.34.2 How to set the origin point reference for EBL OFFSET ...............................1-78

1.35 How to Measure Range and Bearing Between Two Targets................................... 1-79

1.36 How to Off-Center the Display ................................................................................. 1-82

1.36.1 How to off-center the display from the control unit (RCU-014/RCU-031) .... 1-82

1.36.2 How to off-center the display from the on-screen menu .............................. 1-83

1.37 Target Trails.............................................................................................................1-83

1.37.1 True or relative trails ....................................................................................1-83

1.37.2 Trail time ......................................................................................................1-85

1.37.3 Trail gradation ..............................................................................................1-86

1.37.4 Trail level......................................................................................................1-86

vi

TABLE OF CONTENTS

1.37.5 Narrow trails (C-type only)............................................................................1-87

1.37.6 How to hide the trails temporarily.................................................................1-87

1.37.7 Trail stabilization in true motion....................................................................1-87

1.37.8 How to erase/restart trails ............................................................................1-88

1.37.9 How to prevent sea clutter in true trails........................................................1-88

1.37.10How to show/hide OS trails ..........................................................................1-89

1.37.11How to show/hide land trails (C-type only) ...................................................1-89

1.37.12How to set the trail length (C-type only) .......................................................1-90

1.37.13How to set the trail color (C-type only) .........................................................1-90

1.37.14How to remove the colors from a section of a multicolor trail (C-type only) .1-91

1.37.15How to offset the colors for multicolored trail (C-type only)..........................1-92

1.38 Target Analyzer (C-type only)...................................................................................1-93

1.38.1 How to activate/deactivate the target analyzer.............................................1-94

1.39 Target Alarm.............................................................................................................1-95

1.39.1 How to set a target alarm .............................................................................1-95

1.39.2 How to mute the target alarm.......................................................................1-96

1.39.3 How to deactivate a target alarm..................................................................1-96

1.39.4 How to change target alarm attributes .........................................................1-96

1.39.5 How to change the target alarm bearing reference......................................1-97

1.40 PI (Parallel Index) Lines ...........................................................................................1-97

1.40.1 How to show/hide the PI lines ......................................................................1-97

1.40.2 How to set the maximum number of lines to display....................................1-98

1.40.3 How to change PI line bearing and interval..................................................1-98

1.40.4 How to change the PI line bearing reference (C-type only)..........................1-99

1.40.5 How to change the PI line orientation...........................................................1-99

1.40.6 How to reset the PI lines to default (ship’s heading) ....................................1-99

1.40.7 How to change PI line length......................................................................1-100

1.40.8 How to change the PI line color (C-types only) ..........................................1-101

1.41 How to Use the Net (Diamond) Cursor (C-type only) .............................................1-101

1.41.1 How to activate the net cursor....................................................................1-101

1.41.2 How to set the net cursor dimensions and orientation ...............................1-102

1.42 Circle Cursor (C-types only) ...................................................................................1-103

1.43 Zoom ......................................................................................................................1-104

1.44 How to Use Marks ..................................................................................................1-105

1.44.1 Heading line mark ......................................................................................1-105

1.44.2 How to hide/show the stern mark...............................................................1-106

1.44.3 North mark..................................................................................................1-106

1.44.4 Bearing ring................................................................................................1-107

1.44.5 How to set up the own ship mark ...............................................................1-108

1.44.6 How to set the barge marker......................................................................1-108

1.44.7 Antenna mark.............................................................................................1-109

1.45 Drop Mark...............................................................................................................1-109

1.45.1 How to inscribe a drop mark.......................................................................1-110

1.45.2 How to erase drop marks ...........................................................................1-110

1.46 Brilliance and Color Schemes ................................................................................1-110

1.46.1 How to select a brilliance and color scheme ..............................................1-110

1.46.2 How to change the color schemes settings................................................1-111

1.46.3 How to change the color schemes settings................................................1-112

1.47 How to Display and Set Up Navigational Data .......................................................1-114

1.47.1 How to set up the navigational data ...........................................................1-114

1.47.2 How to display navigational data................................................................1-115

1.48 How to Use the Information Box.............................................................................1-115

1.49 Interswitch ..............................................................................................................1-117

1.49.1 How to display antenna information ...........................................................1-117

1.49.2 How to preset antenna and display combinations......................................1-118

1.49.3 How to clear the interswitch .......................................................................1-120

vii

TABLE OF CONTENTS

1.50 Performance Monitor..............................................................................................1-120

1.50.1 How to activate/deactivate the performance monitor.................................1-120

1.50.2 How to check the radar’s performance ......................................................1-122

1.51 How to Change the Reference Position................................................................. 1-123

1.52 Anchor Watch.........................................................................................................1-124

1.53 Alerts......................................................................................................................1-125

1.53.1 What is an alert? ........................................................................................1-125

1.53.2 Alert box overview...................................................................................... 1-126

1.53.3 How to silence the buzzer..........................................................................1-126

1.53.4 How to acknowledge an alert.....................................................................1-126

1.53.5 Alert list ......................................................................................................1-127

1.53.6 Alert icons and their meanings...................................................................1-128

1.54 Icing Prevention ..................................................................................................... 1-129

1.55 How to Select an Echo Display Area (C-type Only)............................................... 1-129

1.56 How to Use the Watch Alert................................................................................... 1-130

1.57 Loran Decca Setup (C-types Only) ........................................................................1-130

1.58 How to Manage SD Card Data...............................................................................1-133

1.58.1 Formatting the SD card..............................................................................1-133

1.58.2 Cautionary notes on handling SD cards.....................................................1-133

1.58.3 Compatible SD cards .................................................................................1-133

1.58.4 How to insert SD cards ..............................................................................1-134

1.58.5 How to remove SD cards ...........................................................................1-134

1.58.6 How to save data to an SD card (IMO-types only)..................................... 1-135

1.58.7 How to read (load) data from an SD card (IMO-types only)....................... 1-135

1.58.8 How to delete data from an SD card (IMO-types only) ..............................1-135

1.59 Internal Memory (C-types only)..............................................................................1-136

1.59.1 How to save data to the internal memory...................................................1-136

1.59.2 How to view the contents of the internal memory ...................................... 1-138

1.59.3 How to load the contents of the internal memory....................................... 1-139

1.59.4 How to delete the contents of the internal memory.................................... 1-140

1.59.5 How to backup data in the internal memory...............................................1-141

1.59.6 How to load backup data from the internal memory...................................1-142

1.60 USB Flash Memory (C-types only).........................................................................1-143

1.60.1 USB Flash memory connection.................................................................. 1-143

1.60.2 How to remove the USB flash memory safely............................................1-143

1.60.3 How to save data to the USB flash memory ..............................................1-143

1.60.4 How to load data from the USB memory....................................................1-145

1.60.5 How to transfer USB data to the internal memory......................................1-147

1.60.6 How to save the backup data to the USB flash memory............................ 1-148

1.60.7 How to load backup data from the USB flash memory .............................. 1-149

1.60.8 How to import data from other equipment.................................................. 1-149

1.61 How to Take a Screenshot..................................................................................... 1-151

1.62 Doppler Feature (X-band Solid State Radars only)................................................1-151

2. RADAR OBSERVATION .......................................................................................2-1

2.1 General ......................................................................................................................2-1

2.1.1 Minimum range .............................................................................................. 2-1

2.1.2 Maximum range ............................................................................................. 2-1

2.1.3 X-band and S-band........................................................................................2-2

2.1.4 Radar resolution.............................................................................................2-2

2.1.5 Bearing accuracy ........................................................................................... 2-3

2.1.6 Range measurement...................................................................................... 2-3

2.2 False Echoes .............................................................................................................2-3

2.3 SART (Search and Rescue Transponder) .................................................................2-5

2.3.1 SART description........................................................................................... 2-5

2.3.2 How to show SART marks on the radar display.............................................2-6

viii

TABLE OF CONTENTS

2.3.3 General remarks on receiving SARTs............................................................2-6

2.4 RACON.......................................................................................................................2-7

2.5 Radar Target Enhancer (RTE) ...................................................................................2-7

2.6 Solid state radar .........................................................................................................2-8

3. TARGET TRACKING (TT).....................................................................................3-1

3.1 Precautions when Using Target Tracking...................................................................3-1

3.2 TT Controls.................................................................................................................3-2

3.3 How to Show/Hide the TT Symbols............................................................................3-2

3.4 How to Select the TT mode ........................................................................................3-3

3.4.1 How to setup the acquisition method .............................................................3-3

3.4.2 How to manually acquire targets....................................................................3-4

3.4.3 How to automatically acquire targets .............................................................3-4

3.5 How to Enter Own Ship Speed...................................................................................3-5

3.5.1 Echo-referenced speed input .........................................................................3-5

3.6 How to Cancel Target Tracking ..................................................................................3-7

3.6.1 How to cancel tracking for individual TT targets.............................................3-7

3.6.2 How to cancel tracking for all TT targets........................................................3-7

3.7 Lost Target .................................................................................................................3-8

3.7.1 How to set the lost target filter........................................................................3-8

3.7.2 How to enable/disable the lost target alert .....................................................3-8

3.8 TT Symbols and Attributes .........................................................................................3-9

3.8.1 How to adjust symbol brilliance......................................................................3-9

3.8.2 How to set the symbol color ...........................................................................3-9

3.8.3 How to set the symbol size (C-types only) ...................................................3-10

3.8.4 How to select a TT symbol (C-type only) .....................................................3-10

3.8.5 How to change the attributes for a TT symbol preset...................................3-11

3.9 How to Display/Remove Target Data .......................................................................3-12

3.9.1 TT pop up information ..................................................................................3-12

3.9.2 How to show target data in the data display area ........................................3-13

3.9.3 How to display, hide and sort the target list..................................................3-14

3.10 Vector Modes ...........................................................................................................3-16

3.10.1 Description of vectors...................................................................................3-16

3.10.2 Vector mode and vector length ....................................................................3-18

3.10.3 How to change the vector appearance (C-types only) .................................3-18

3.11 Past Position Display................................................................................................3-19

3.11.1 How to display past position points and select the plotting interval..............3-19

3.11.2 How to select the number of past position points to be displayed................3-19

3.11.3 How to change the color of TT tracks (C-types only) ...................................3-20

3.12 Set and Drift..............................................................................................................3-20

3.13 Collision Alarm (CPA, TCPA) ...................................................................................3-21

3.13.1 How to set the CPA and TCPA ranges ........................................................3-21

3.13.2 How to acknowledge the TT collision alarm.................................................3-22

3.14 Acquisition Zone.......................................................................................................3-22

3.14.1 How to enable the acquisition zones............................................................3-22

3.14.2 How to activate the first acquisition zone (AZ1) ...........................................3-23

3.14.3 How to set a polygon acquisition zone (AZ2)...............................................3-23

3.14.4 How to sleep/deactivate an acquisition zone ...............................................3-24

3.14.5 How to acknowledge the acquisition zone alert ...........................................3-24

3.14.6 How to select the target type to acquire (C-types only)................................3-24

3.14.7 How to change the acquisition zone reference ............................................3-24

3.14.8 How to set acquisition zone shape and stabilization ....................................3-25

3.15 Trial Maneuvers (IMO-types only) ............................................................................3-26

3.15.1 Types of trial maneuvers..............................................................................3-26

3.15.2 How to perform a trial maneuver..................................................................3-27

3.15.3 How to stop the trial maneuver.....................................................................3-29

ix

TABLE OF CONTENTS

3.16 TT System Messages .............................................................................................. 3-30

3.17 TT Simulation Mode................................................................................................. 3-31

3.18 How to Display the External TT Data....................................................................... 3-32

3.19 Criteria for Tracking Target Selection ......................................................................3-32

3.20 Factors Affecting Target Tracking............................................................................ 3-34

4. AIS OPERATION ...................................................................................................4-1

4.1 Controls for AIS..........................................................................................................4-2

4.2 How to Select the AIS Display Mode .........................................................................4-3

4.3 AIS Symbols and Their Meanings..............................................................................4-3

4.4 How to Use the AIS Display Filter ..............................................................................4-4

4.5 How to Activate AIS Targets ......................................................................................4-5

4.5.1 How to activate specific targets manually......................................................4-5

4.5.2 How to set the AIS auto activate function ...................................................... 4-6

4.6 How to Sleep AIS Targets..........................................................................................4-7

4.6.1 How to sleep individual AIS targets................................................................ 4-7

4.6.2 How to sleep all AIS targets...........................................................................4-8

4.7 How to Set Up For a Voyage ..................................................................................... 4-8

4.7.1 How to access the [VOYAGE DATA] menu...................................................4-8

4.8 How to Display AIS Target Data ..............................................................................4-10

4.8.1 AIS pop-up information ................................................................................4-10

4.8.2 How to display basic AIS target data ........................................................... 4-11

4.8.3 How to display expanded AIS target data....................................................4-12

4.8.4 How to remove target data from the display area........................................ 4-12

4.9 How to Change AIS Symbol Attributes ....................................................................4-13

4.9.1 How to adjust the AIS symbol brilliance.......................................................4-13

4.9.2 How to change the color of the AIS symbol................................................. 4-13

4.9.3

4.9.4 How to change the color of the ATON symbol.............................................4-14

4.9.5 How to change the size of the AIS symbol................................................... 4-14

4.9.6 How to customize the AIS symbol display (C-types only)............................4-15

4.9.7 How to edit or remove AIS customizations (C-types only)...........................4-15

4.9.8 How to show/hide the customized AIS name (C-types only) .......................4-16

4.10 Past Position Display ............................................................................................... 4-16

4.10.1 How to display past position points and select the plotting interval ............. 4-17

4.10.2 How to select the number of past position points to be displayed ............... 4-17

4.10.3 Past position display orientation...................................................................4-17

4.10.4 Stabilization in true motion...........................................................................4-17

4.10.5 How to set the AIS track color (C-types only) .............................................. 4-18

4.11 Lost Target...............................................................................................................4-18

4.11.1 How to set the lost target filter...................................................................... 4-18

4.11.2 How to enable/disable the lost target alert...................................................4-19

4.12 ROT Setting ............................................................................................................. 4-19

4.13 AIS Collision Alarm (CPA, TCPA)............................................................................4-20

4.13.1 How to set CPA and TCPA ..........................................................................4-20

4.14 How to Associate TT and AIS Targets..................................................................... 4-21

4.15 How to View Own Ship Data....................................................................................4-23

4.16 How to Use AIS Messages ...................................................................................... 4-24

4.16.1 How to create and save messages..............................................................4-24

4.16.2 How to transmit messages........................................................................... 4-25

4.16.3 How to view messages ................................................................................4-26

4.16.4 How to set up the AIS message notification.................................................4-26

4.16.5 How to display AIS alert messages..............................................................4-27

4.17 AIS System Messages............................................................................................. 4-28

How to change the color of the AIS symbol for fishing vessels (C-type only)

....4-14

x

TABLE OF CONTENTS

5. PLOTTER OPERATION (IMO-TYPES) .................................................................5-1

5.1 Orientation Modes ......................................................................................................5-1

5.2 How to Select a Mark Type ........................................................................................5-1

5.3 How to Select the Mark Inscription Position ...............................................................5-2

5.4 Radar Map..................................................................................................................5-3

5.4.1 How to show/hide the radar map....................................................................5-3

5.4.2 How to inscribe marks....................................................................................5-3

5.4.3 How to delete marks.......................................................................................5-5

5.4.4 How to align the radar map ............................................................................5-6

5.5 Origin Mark .................................................................................................................5-7

5.5.1 How to inscribe origin marks ..........................................................................5-7

5.5.2 How to set origin mark stabilization................................................................5-8

5.5.3 How to delete origin marks.............................................................................5-8

5.6 How to Change the Shape of the Own Ship Mark......................................................5-9

5.7 How to Use ECDIS Chart Marks ..............................................................................5-10

5.8 Own Ship Track ........................................................................................................5-11

5.8.1 How to show/hide tracks ..............................................................................5-11

5.8.2 How to set the plotting interval .....................................................................5-12

5.8.3 How to delete tracks.....................................................................................5-12

5.9 How to Use Waypoints .............................................................................................5-13

5.9.1 How to set the data source for waypoints ....................................................5-13

5.9.2 How to enter waypoints................................................................................5-13

5.9.3 How to edit waypoints ..................................................................................5-14

5.9.4 How to erase waypoints ...............................................................................5-15

5.9.5 How to display the waypoint list ...................................................................5-16

5.9.6 How to show/hide the waypoint name/number.............................................5-16

5.10 Routes ......................................................................................................................5-17

5.10.1 How to set/edit an internal route...................................................................5-17

5.10.2 How to display routes...................................................................................5-18

5.10.3 How to skip a waypoint.................................................................................5-18

5.10.4 How to set the route width............................................................................5-19

5.10.5 How to show/hide the turning line ................................................................5-19

5.10.6 How to use the waypoint arrival distance function .......................................5-20

5.10.7 How to delete internal routes........................................................................5-20

5.10.8 How to view the routes list............................................................................5-21

5.11 How to Show/Hide Grid Lines...................................................................................5-21

6. PLOTTER OPERATION (C-TYPES) .....................................................................6-1

6.1 Tracks.........................................................................................................................6-1

6.1.1 Symbols..........................................................................................................6-1

6.1.2 How to show/hide ships’ tracks ......................................................................6-3

6.1.3 How to set own ship track recording ..............................................................6-5

6.1.4 How to stop and re-start tracks ......................................................................6-6

6.1.5 How to change track color..............................................................................6-6

6.1.6 How to show/hide own track based on color ................................................6-11

6.1.7 How to change the track line........................................................................6-11

6.1.8 How to set tracks recording method and interval .........................................6-12

6.1.9 How to delete own ship tracks......................................................................6-13

6.1.10 How to edit own ship’s tracks.......................................................................6-15

6.1.11 How to view information for consorts and GPS buoys .................................6-16

6.1.12 How to delete other ship’s tracks .................................................................6-18

6.2 Marks........................................................................................................................6-20

6.2.1 How to set up marks.....................................................................................6-20

6.2.2 How to enter marks and lines.......................................................................6-22

6.2.3 How to delete marks and lines .....................................................................6-25

6.2.4 How to edit marks and lines .........................................................................6-27

xi

TABLE OF CONTENTS

6.2.5 How to view mark and line information ........................................................ 6-28

6.2.6 Mark filter ..................................................................................................... 6-30

6.3 Origin Marks.............................................................................................................6-34

6.3.1 How to set up an origin mark ....................................................................... 6-34

6.3.2 How to enter an origin mark.........................................................................6-35

6.3.3 How to delete origin marks........................................................................... 6-36

6.3.4 How to set a comment for origin marks........................................................ 6-36

6.3.5 How to show/hide origin marks entered at external equipment ................... 6-37

6.4 Waypoints ................................................................................................................ 6-37

6.4.1 How to create a waypoint.............................................................................6-37

6.4.2 How to edit a waypoint.................................................................................6-43

6.4.3 How to delete a waypoint.............................................................................6-44

6.4.4 How to search for a waypoint.......................................................................6-44

6.4.5 How to set the voyage speed for calculations..............................................6-45

6.4.6 How to view waypoint information................................................................6-45

6.4.7 How to change the on-screen size of waypoint indications..........................6-46

6.4.8 How to change the way waypoint names are displayed .............................. 6-46

6.4.9 How to use external waypoints .................................................................... 6-47

6.5 Routes......................................................................................................................6-47

6.5.1 How to create a route...................................................................................6-47

6.5.2 How to edit a route.......................................................................................6-51

6.5.3 How to delete a route...................................................................................6-52

6.5.4 How to search for a route.............................................................................6-53

6.5.5 How to set the voyage speed for calculations..............................................6-53

6.5.6 How to use external routes .......................................................................... 6-54

6.6 Destinations ............................................................................................................. 6-54

6.6.1 How to set up GOTO points.........................................................................6-54

6.6.2 How to set a waypoint as a destination........................................................6-56

6.6.3 How to set a route as a destination..............................................................6-58

6.6.4 How to set up the waypoint data display......................................................6-61

6.6.5 How to stop navigation to a destination ....................................................... 6-62

6.7 Plotter-related alerts.................................................................................................6-62

6.7.1 How to set waypoint arrival/departure alerts................................................6-62

6.7.2 How to set mid-route alerts..........................................................................6-63

6.7.3 How to set XTE/border route alerts..............................................................6-64

6.7.4 How to active/deactivate intrusion alerts......................................................6-65

6.7.5 How to set temperature alerts......................................................................6-65

6.7.6 How to set sheer alerts ................................................................................ 6-66

6.7.7 How to set depth alerts ................................................................................ 6-66

6.8 Chart Functions........................................................................................................6-67

6.8.1 How to show/hide the chart..........................................................................6-67

6.8.2 How to align the chart position.....................................................................6-68

6.8.3 How to select the chart type.........................................................................6-69

6.8.4 Chart settings menu.....................................................................................6-70

6.8.5 How to show/hide land mass emphasis.......................................................6-71

6.8.6 How to set up depth lines.............................................................................6-72

6.8.7 How to display detailed depth lines..............................................................6-73

6.8.8 How to check your charts/symbol versions..................................................6-74

6.9 Grid Lines.................................................................................................................6-74

7. MAINTENANCE, TROUBLESHOOTING...............................................................7-1

7.1 Periodic Maintenance Schedule.................................................................................7-2

7.2 How to Replace the Fuse...........................................................................................7-3

7.3 Life Expectancy of Major Parts .................................................................................. 7-4

7.4 Trackball Maintenance ...............................................................................................7-4

7.5 Easy Troubleshooting ................................................................................................ 7-5

xii

TABLE OF CONTENTS

7.6 Advanced-level Troubleshooting ................................................................................7-6

7.7 Diagnostics .................................................................................................................7-8

7.8 Sentence Monitor .....................................................................................................7-15

7.9 Fallback Arrangements.............................................................................................7-16

APPX. 1 MENU TREE..............................................................................................AP-1

APPX. 2 LONGITUDE ERROR TABLE (96 NM SCALE)......................................AP-15

APPX. 3 ALERT LIST ............................................................................................AP-17

APPX. 4 DATA COLOR AND MEANING .............................................................. AP-27

APPX. 5 ABBREVIATIONS ................................................................................... AP-28

APPX. 6 SYMBOLS ...............................................................................................AP-33

APPX. 7 PARTS LOCATION .................................................................................AP-38

APPX. 8 RADIO REGULATORY INFORMATION .................................................AP-49

SPECIFICATIONS ..................................................................................................... SP-1

INDEX ......................................................................................................................... IN-1

xiii

FOREWORD

A Word to the Owner of FAR-22x8/23x8 Series Marine Radar

Congratulations on your choice of the FURUNO FAR-22x8/FAR-23x8 series of radars. We are
confident you will see why FURUNO has become synonymous with quality and reliability.

Since 1948, FURUNO Electric Company has enjoyed an enviable reputation for innovative and
dependable marine electronics equipment. This dedication to excellence is furthered by our ex­tensive global network of agents and dealers.

Your radar is designed and constructed to meet the rigorous demands of the marine environment.
However, no machine can perform its intended function unless installed, operated and maintained
properly. Please carefully read and follow the recommended procedures for operation and main­tenance.We would appreciate hearing from you, the end-user, about whether we are achieving
our goal.

Thank you for considering and purchasing FURUNO equipment.

Features

• The FAR-2xx8 series consists of the following models and configurations:

Model

Magnetron radar
FAR-2218
FAR-2218-BB Local supply 12 kW
FAR-2318 23.1”/27” 12 kW
FAR-2018-MARK-2 19.0”/27” 12 kW
FAR-2228 19.0” 25 kW
FAR-2228-BB Local supply 25 kW
FAR-2328 23.1”/27” 12 kW
FAR-2028-MARK-2 19.0”/27” 25 kW
FAR-2258 Local supply 50 kW
FAR-2238S
FAR-2238S-BB Local supply 30 kW
FAR-2338S 23.1”/27” 30 kW
FAR-2268DS Local supply 60 kW
Solid state radar
FAR-2228-NXT

FAR-2328-NXT 23.1”/27”
FAR-2238S-NXT

FAR-2238S-NXT-BB Local supply 250 W Antenna unit
FAR-2338S-NXT 23.1”/27” 250 W Antenna unit

Frequency

band

X-band

S-band

X-band

S-band

Size of

monitor unit

19.0” 12 kW Antenna unit

19.0” 30 kW Antenna unit

19.0”

19.0” 250 W Antenna unit

*1

Output

power

600 W
600 W

*2

*2

Antenna unit
Antenna unit

Transceiver

location

xiv

*1

Viewing distances are as follows:

:

MU-190/MU-190HD/MU-270W: 1020 mm; MU-231: 1200 mm.

*2

500 W, for Japanese flag vessels.

:

FOREWORD

• Two methods of operation are available: RCU-014/RCU-031 (standard supply control unit) and
RCU-015/RCU-016 (optional trackball unit). The ergonomically designed palm rest on the RCU­015/RCU-016 makes them easy to use.

• Simple operation with “point-and-click” menu functionality.

• All functions can be accessed using only the trackball unit.

• TT, AIS*, Radar Map and Interswitch are supplied as standard.
*: Requires connection to a compatible AIS transponder.

• FURUNO’s unique Target Analyzer function helps to find targets in high noise areas (rain/
snow), or where there is interference from surface reflections (C-types only).

• The Automatic Clutter Elimination (ACE) function detects sea and rain clutter from received
echoes’ and automatically reduces sea and rain clutter accordingly.

• Targets activate the user-set alarm/acquisition zone when entering or exiting the zone.

• CPA/TCPA alarms.

• Radar screen can be overlaid with the chart display (C-types only).

• Full plotter functionality (C-types only).

• The FAR-2xx8 series complies with MED 2014/90/EU* and also the following directives:
IEC62388, IEC 62288, IMO MSC. 192(79)*.
*: Excludes FAR-2258 and FAR-2268DS.

Radar Type and Function Availability

The software for advanced fishing specifications is available in two specification types, and func­tion availability depends on specification type. The table below shows the function that have lim­ited availability. This manual provides descriptions for all functions of this radar series, and we
have endeavored to denote in the text those functions that have limited availability. For detailed
information on the function availability, see the menu tree at the back of this manual.

Type abbreviations and their meanings

• IMO: Meets the IMO requirements and is compliant with IMO regulations

• C: Advanced fishing specifications

Function availability and specification type

Function

Echo area configuration No Yes
Target Analyzer No Yes
Customized echo - assign name No Yes
Trails - 5-step gradation No Yes
Trail Eraser No Yes
Trails - Long No Yes
Trails - Hide No Yes
Trails - Narrow No Yes
Trails - Color No Yes
Echo Average level 4 No Yes
True view No Yes
Marks - No. available Max. 20,000 Max. 30,000
Area Marks No Max. 50
ECDIS marks Yes No

IMO C

Type

xv

FOREWORD

Function

IMO C

Type

Marks filter No Yes
Mark information display No Yes
Mark comment display No Yes
Own track - Points Max. 20,000 Memory capacity: Max. 30,000

Display capacity: Max. 10,000
Own track - Edit No Yes
Own track - Color No Yes
Own track - Stop/start plotting No Yes
Own track - Save intervals [OFF], [DRAW ONLY]

with intervals of 10s, 30s,
1min, 2min, 3min, 6min,
15min

[OFF], [TRACK INTERVAL 1],
[TRACK INTERVAL 2] with time
intervals of 0s to 59m59s or dis­tance intervals of 0NM to 9.99NM.

Other tracks - Points No • TT targets:

Memory capacity: Max. 100,000
Display capacity: Max. 30,000

• AIS targets:
Memory capacity: Max. 10,000
Display capacity: Max. 10,000

• Consort vessels:
Memory capacity: Max. 10,000
Display capacity: Max. 1,000

• GPS buoys:
Memory capacity: Max. 10,000
Display capacity: Max. 1,000

Other tracks - Edit No Yes
Other tracks - Stop/start plotting No Yes
Other tracks - Save intervals No [OFF], [TRACK INTERVAL 1],

[TRACK INTERVAL 2] with time
intervals of 0s to 59m59s or dis-

tance intervals of 0NM to 9.99NM.
Chart Display No Yes
Individual contour line display No Yes
WPT - No. of marks Max. 200 (+1 external) Max. 3,500 (+100 external)
PI lines - No. of lines Max. 6 Max. 11
PI lines - Mode No Yes
PI lines - Linked to EBL/VRM No Yes
PI lines - Color No Yes
Range [0.125], [0.25], [0.5],

[0.75], [1.5], [3], [6], [12],

[24], [48], [96]

[0.025]*

[0.1m]*

[0.75], [1], [1.5], [2], [3], [4], [6], [8],

1

, [0.05]*1, [0.075]*1,

1

, [0.125]*2, [0.25], [0.5],

[12], [16], [24], [32], [48], [96],

3

[120]*
Range unit [NM] only [NM], [SM], [km], [kyd]
Range rings - No. available Fixed Max. 6 rings
Range rings - 32 point display No Yes
VRM - Unit selection No Yes
VRM - Close distance unit No Yes
Cursor - Range unit selection No Yes
Cursor - Size No Yes
Cursor - Enlarged information box No Yes

xvi

FOREWORD

Function

Cursor - Color No Yes
Net Cursor No Yes
Circle Cursor No Yes
Plotter-related alerts

(XTE, arrival, departure, intrusion,
temp., sheer, depth)

Acquisition zone - Check area
around ship

TT - Symbol selection, symbol color,
individual settings for symbols

TT - Vector line type No Yes
TT - Acquisition by target type No Yes
TT - Lat./Long. data display No Yes
TT - Display up to 5 targets’ data in

information area
AIS - Symbol color No Yes
GPS buoy display No Yes
Consort vessel - display No Yes
Trial Maneuver Yes No
Data import from other equipment No

(File conversion required)
Magnetic bearing input and display No Yes
Alternative positioning systems (LO-

RAN, DECCA, TOKYO datum)
Date/time display format selection No Yes
Echoes in multi-color No Yes
Echoes in amber color No Yes
Chart/Plotter brilliance adjustment No Yes
User settings, Pilot settings Yes No
Shuttle Ferry mode Yes No
Simplified screen layout No Yes
Display Scroll No Yes
Customizable [CURSOR] menu No Yes
Function keys - [CURSOR CENTER/

DISPLAY MODE] function
Show/hide the cursor No Yes
Function keys - Assign multiple func-

tions
Origin marks Max. 20 Max. 40

IMO C

No Yes

No Yes

No Yes

No Yes

No Yes

No Yes

No Yes

Type

Yes

*1: Available only when radar is transmitting.

2

: Not available if using [km/kyd] range units and radar is transmitting.

*

3

: Available only when the range unit is set to [NM] or [SM].

*

xvii

FOREWORD

Signal processing functions

This radar has the signal processing functions listed in the table below.

Function Description Reference

Interference rejector Suppresses interference by other radars.

Interference received simultaneously from multiple
radars may be difficult to reduce.

Echo stretch Enlarges target echoes, especially small echoes.

Suppress interference, sea clutter and rain clutter be­fore using echo stretch, to prevent enlargement of
unwanted echoes.

Echo averaging The radar samples echoes with each scan.

Targets that show a large change with each scan are
judged as clutter and are reduced to display only
echoes from legitimate targets.

Automatic clutter elimination Discriminates clutter from the radar echo, then reduc-

es the clutter automatically.

Noise rejector Reduces white noise then improves the on-screen

S/N ratio by processing the weighted moving aver­age filter for the received echoes in the range direc­tion. Use this function with caution. Weak target
echoes may disappear from the screen or the range
resolution may worsen.

See
section 1.22

See
section 1.23

See
section 1.24

See
section 1.25

See
section 1.26

Program numbers

Please access the following URL if you need software information:
http://www.furuno.com/en/merchant/radar/FAR-22x8_23x8/#SoftwareVersion

System Program no. Version no. Remarks

Antenna unit (common to all antennas)

SPU 0359281 01.xx For magnetron radar

(other than FAR-2258 and FAR-2268DS)
SPU 0359286 01.xx For S-band solid state radar
SPU 0359477 01. For X-band solid state radar
IF-SPU 0359560 01. For MARK-2 magnetron radar
MTR-DRV 0359293 01.xx
MTR-PWR 0359556 01. For MARK-2 magnetron radar
PM 0359296 01.xx
RF-Converter 0359302 01. For S-band solid state radar
RF-Converter 0359414 01. For X-band solid state radar

Processor Unit: RPU-025

MAIN 0359377 50.xx
SUB 0359380 50.xx

Control Unit

KEY 0359385 01.xx RCU-014/RCU-015/RCU-016
KEY 0359464 01.xx RCU-031

Power Supply Unit (FAR-2258/FAR-2268DS only)

SPU 0359472 01.xx

xx: Denotes minor changes to the software.

xviii

FOREWORD

About the programs used in C-type radars

• Ubiquitous QuickBoot Copyright© 2015. Ubiquitous Corp. All right reserved.

• Portions of this software are copyright
right reserved.

• This equipment includes GPL2.0, LGPL2.0, Apache, BSD, MIT or other licensed softwares. For
further software information, please access the following URL:
https://www.furuno.co.jp/en/contact/cnt_oss_e01.html

©

2016. The FreeType Project (www.freetype.org). All

Terminology standards used in this manual

This manual uses the following terminology standards:

Terminology Meaning or usage example

Select • Use the trackball or scrollwheel on the control unit to move the cursor over

the item to be “selected”, then left-click.

• With a menu open: Press the appropriate menu number.

• With the setting/value/menu selected: Spin the scrollwheel to highlight the
item to be “selected”, then left-click

Left-click Press the left mouse button.
Right-click Press the right mouse button.
Control Unit Refers to the RCU-014 Control Unit, unless otherwise specified.
Open the menu. Press the MENU key to show the [MENU].
Close the menu. Press the MENU key to close the [MENU].

For the sake of brevity, all procedures in this manual use the terms “Open the menu.” and “Close
the menu”.

Unless otherwise stated, operations in this manual use the scrollwheel for procedures which re­quire menu selection, or settings changed.

CE/UKCA Declaration

With regards to CE/UKCA declarations, please refer to our website (www.furuno.com) for further
information about RoHS conformity declarations.

Disclosure of Information about China RoHS

With regards to China RoHS information for our products, please refer to our website
(www.furuno.com).

xix

SYSTEM CONFIGURATION

For IMO-type radars, interconnected sensors must meet the following type approval requirements.
For C-type radars, it is recommended that the interconnected sensors meet these requirements:

• Gyrocompass (or equivalent devices) meeting the requirements of the IMO resolution A.424(XI).

• EPFS meeting the requirements of the IMO resolution MSC.112(73).

• SDME meeting the requirements of IMO resolution MSC.96(72).

NOTICE

The radar may be interconnected via HUB-3000 to other FURUNO processing units having approved
LAN ports.

Control Unit

RCU-014 or RCU-015

:

Standard supply

:

Optional or local supply

Control Unit

RCU-016

Sub monitor

Antenna
Cable*

10

100-115/220-230 VAC

1ø, 50-60 Hz (for de-icer)

Antenna Unit

100-230 VAC 1ø, 50-60 Hz

Transformer

USB Device*

9

440 VAC 1ø, 50-60 Hz

24 VDC

Rectifier PR-850A

Rectifier

100/115/220/230 VAC

1ø, 50-60 Hz

100/115/
220/230 VAC
1ø, 50-60 Hz

USB Mouse

Switching Hub

HUB-100

Intelligent Hub

HUB-3000*

5

Gyrocompass*1 (AD-10 format)

Gyrocompass*1 (IEC61162 format)

AIS Transponder

EPFS*2 (GPS)

SDME (Speed log)

AMS (IEC61162 format)

Sub monitor 1 of ECDIS*

8

Sub monitor 2 of ECDIS*

8

AMS (Contact)*

4

Processor

Unit

RPU-025

100-230 VAC

100-230 VAC

Intelligent Hub

HUB-3000*

6

100-230 VAC

OR

100-230 VAC

Sensors

(IEC61162-450 Ed.2 format)

VDR

(IEC61162-450 format)

Sensors

(IEC61162-450 Ed.1 format)

VDR (Analog RGB)

ECDIS

For AC
power

For DC
power

Monitor Unit*3

MU-190/MU-231/MU-270W

Monitor Unit*3

MU-190HD

*11

or

12-24 VDC

for FAR-2218(-BB)/2318, 12 kW

(

w/ Performance Monitor PM-32A

*7

)
XN12CF-RSB128-105
XN20CF-RSB128-105
XN24CF-RSB128-105

for FAR-2228(-BB)/2328, 25 kW

(

w/ Performance Monitor PM-32A

*7

)
XN12CF-RSB128-106
XN20CF-RSB128-106
XN24CF-RSB128-106

for FAR-2228-NXT/2328-NXT,

600 W (500 W, for Japanese flag vessels)

(w/ Performance Monitor PM-32B*

7

)
XN12CF-RSB128-123
XN20CF-RSB128-123
XN24CF-RSB128-123

X-band (TR-UP, CF Antenna), 12 kW/25 kW

Note: The footnotes for *1 to *11 are listed in "Notes" on page xxv.

xx

X-band (TR-UP, AF Antenna), 12 kW/25 kW

100-230 VAC 1ø, 50-60 Hz

Transformer

USB Device*

9

440 VAC 1ø, 50-60 Hz

24 VDC

Rectifier PR-850A

100/110/120 VAC

1ø, 50-60 Hz

USB Mouse

Switching Hub

HUB-100

Control Unit

RCU-014 or RCU-015 or RCU-031*

11

Intelligent Hub

HUB-3000*

5

Gyrocompass*1 (AD-10 format)

Gyrocompass*1 (IEC61162 format)

AIS Transponder

EPFS*2 (GPS)

SDME (Speed log)

AMS (IEC61162 format)

Sub monitor 1 of ECDIS*

8

Sub monitor 2 of ECDIS*

8

AMS (Contact)*

4

Sub monitor

Antenna Cable*

10

100-115/220-230 VAC

1ø, 50-60 Hz (for de-icer)

Processor

Unit

RPU-025

100-230 VAC

100-230 VAC

Intelligent Hub

HUB-3000*

6

100-230 VAC

OR

100-230 VAC

Sensors

(IEC61162-450 Ed.2 format)

VDR

(IEC61162-450 format)

Sensors

(IEC61162-450 Ed.1 format)

VDR (Analog RGB)

: Standard supply
: Optional or local supply

ECDIS

Control Unit RCU-016

For AC
power

For DC
power

for FAR-2018-MARK-2, 12 kW

(

w/ Performance Monitor PM-32A

*7

)
XN12AF-RSB146-131
XN20AF-RSB146-131
XN24AF-RSB146-131

for FAR-2028-MARK-2, 25 kW

(

w/ Performance Monitor PM-32A

*7

)
XN12AF-RSB146-132
XN20AF-RSB146-132
XN24AF-RSB146-132

Monitor Unit*3

MU-190/MU-270W

or

Antenna Unit

Rectifier

100/115/

220/230 VAC

1ø, 50-60 Hz

Monitor Unit*3

MU-190HD

*11

12-24 VDC

SYSTEM CONFIGURATION

xxi

SYSTEM CONFIGURATION

USB Device*

9

USB Mouse

Antenna Cable

Motor Cable

Antenna Unit
for FAR-2258, 50kW
(w/ Performance Monitor PM-32A

*7)

XN24AF-RSB139-122

*

11

XN30AF-RSB139-122

*

11

:

Standard supply

:

Optional or local supply

100-115/220-230 VAC

1ø, 50-60 Hz

External radar

Sub monitor 2

Power Supply

Unit

PSU-019

Antenna Cable

Sub monitor 3

Sub monitor 1

Control Unit

RCU-014/
RCU-015/
RCU-031*

Control Unit

RCU-014/
RCU-015/
RCU-031*

Control Unit

RCU-016

Processor

Unit

RPU-025

Gyrocompass*1 (AD-10 format)

Gyrocompass

*1 (IEC61162 format)

AIS Transponder

EPFS*2 (GPS)

AMS (IEC61162 format)

AMS (Contact)*

4

Sub Monitor 1 of ECDIS*

8

Sub Monitor 2 of ECDIS*

8

ECDIS

SDME (Speed log)

Monitor Unit*3

MU-190 or
MU-231 or

MU-270W

100-230 VAC

100-230 VAC 1ø, 50-60 Hz

Transformer

440 VAC 1ø, 50-60 Hz

Switching Hub

HUB-100

Intelligent Hub

HUB-3000*

5

100-230 VAC

Intelligent Hub

HUB-3000*

6

100-230 VAC

OR

100-230 VAC

VDR

(IEC61162-450 format)

Sensors

(IEC61162-450 Ed.1 format)

VDR (Analog RGB)

Sensors

(IEC61162-450 Ed.2 format)

X-band (TR-UP), 50 kW

Note: The footnotes for *1 to *11 are listed in "Notes" on page xxv.

xxii

S-band (TR-UP), 30 kW/250W

Sub monitor

Antenna Cable

100-115/220-230 VAC

1ø, 50-60 Hz

(for de-icer)

Antenna Unit

for FAR-2238S(-BB)/2338S, 30 kW

(

w/ Performance Monitor PM-52A

*7

SN24CF-RSB129-107*

11

SN30CF-RSB129-107*

11

SN36CF-RSB129-107

Antenna Unit
for FAR-2238S-NXT(-BB)/2338S-NXT, 250 W

(

w/ Performance Monitor PM-52B

*7

)

SN24CF-RSB133-111*

11

SN30CF-RSB133-111*

11

SN36CF-RSB133-111

Control Unit

RCU-014 or RCU-015

Control Unit RCU-016

:

Standard supply

:

Optional or local supply

USB Device*

9

USB Mouse

100-230 VAC
1ø, 50-60 Hz

100-230 VAC
1ø, 50-60 Hz

100-230 VAC

1ø, 50-60 Hz

Transformer

440 VAC

1ø, 50-60 Hz

VDR

(Analog RGB)

Monitor Unit*3

MU-190 or
MU-231 or

MU-270W

Intelligent Hub

HUB-3000*

5

Switching Hub

HUB-100

Intelligent Hub

HUB-3000*

6

100-230 VAC

OR

100-230 VAC

Sensors

(IEC61162-450 Ed.2 format)

VDR

(IEC61162-450 format)

Sensors

(IEC61162-450 Ed.1 format)

Processor Unit

RPU-025

Gyrocompass*1 (AD-10 format)

Gyrocompass*1

(IEC61162 format)

AIS Transponder

EPFS*2 (GPS)

AMS (IEC61162 format)

AMS (Contact)*

4

Sub Monitor 1 of ECDIS*

8

Sub Monitor 2 of ECDIS*

8

ECDIS

SDME (Speed log)

Note: The footnotes for *1 to *11 are listed in "Notes" on page xxv.

SYSTEM CONFIGURATION

xxiii

SYSTEM CONFIGURATION

Antenna Cable

Motor Cable

Antenna Unit
for FAR-2268DS, 60 kW

SN30AF-RSB144-129

*11

SN36AF-RSB144-129

*11

SN30DF-RSB144-129

*11

:

Standard supply

:

Optional or local supply

100-115/220-230 VAC

1ø, 50-60 Hz

External radar

Sub monitor 2

Power Supply

Unit

PSU-019

Antenna Cable

Sub monitor 3

Sub monitor 1

Control Unit

RCU-014/
RCU-015/

RCU-031*

Control Unit

RCU-014/
RCU-015/
RCU-031*

Control Unit

RCU-016

Processor

Unit

RPU-025

Gyrocompass*1 (AD-10 format)

Gyrocompass

*1 (IEC61162 format)

AIS Transponder

EPFS*2 (GPS)

AMS (IEC61162 format)

AMS (Contact)*

4

Sub Monitor 1 of ECDIS*

8

Sub Monitor 2 of ECDIS*

8

ECDIS

SDME (Speed log)

USB Device*

9

USB Mouse

Monitor Unit*3

MU-190 or
MU-231 or

MU-270W

100-230 VAC

100-230 VAC 1ø, 50-60 Hz

Transformer

440 VAC 1ø, 50-60 Hz

Switching Hub

HUB-100

Intelligent Hub

HUB-3000*

5

100-230 VAC

Intelligent Hub

HUB-3000*

6

100-230 VAC

OR

100-230 VAC

VDR

(IEC61162-450 format)

Sensors

(IEC61162-450 Ed.1 format)

VDR (Analog RGB)

Sensors

(IEC61162-450 Ed.2 format)

S-band (TR-UP), 60 kW

Note: The footnotes for *1 to *11 are listed in "Notes" on page xxv.

xxiv

SYSTEM CONFIGURATION

Category of units

Antenna units: Exposed to the weather.

Other units: Protected from the weather.

Notes

1) The gyrocompass must be type approved for compliance with IMO resolution A.424(XI) (and/
or resolution A.821(19) for installation on HSC). The gyrocompass must also have an update
rate that is adequate for the ship’s rate of turn. The update rate must be better than 40 Hz
(HSC) or 20 Hz (conventional vessel).

2) The EPFS must be type approved for compliance with IMO resolution MSC.112(73).

3) These monitors have been approved by the IMO, MU-190/MU-190HD for CAT 2 and CAT 2H,
MU-231/MU-270W for CAT 1 and CAT 1H. If a different monitor is to be used on IMO vessels,
its effective diameter must meet the applicable Category requirements:

• CAT 1 and CAT 1H: effective diameter 320 mm or higher;

• CAT 2 and CAT 2H: effective diameter 250 mm or higher.
For installation, operation and viewing distance of other monitor, see its manuals.

For BB type, a monitor unit is prepared by user.

4) Characteristics of contact output for Alarm:

• (Load current) 250 mA;

• (Polarity) Normally Open: 2 ports, Normally Close: 2 ports;

• Serial I/O for alarm is also possible, which complies with IEC 61162-1.

5) For configurations including three or more radars, or including a single ECDIS or chart radar,
connect via a HUB-3000. For two radars, HUB-100 can be used. Connection to a FMD (EC­DIS) is not available for C-type radars.

6) For configurations with a VDR connected, connect via the HUB-3000. (Connection to VDR is
not available for C-types.)

7) Some antenna configurations do not have an in-built Performance Monitor. This type of anten­na is not usable for IMO-type radars.

8) For connection of non-FURUNO ECDIS only. For connection of radars or plotters, the connec­tion must be done at the radar antenna via the sub monitor connector.

9) Available for C-types only.

10)For X-Band TR-UP radars only, a junction box is required for antenna cable extension to
lengths greater than 100 m. The maximum cable length is 400 m.

11)Unavailable on IMO-type radars.

xxv

SYSTEM CONFIGURATION

This page is intentionally left blank.

xxvi

1. OPERATIONAL OVERVIEW

1.1 Controls Overview

Two types of control units are available for your FAR-2xx8: a full keyboard (RCU-014/
RCU-031) or palm control (RCU-015/RCU-016).

Most operations can be done with either type of Control Unit. Throughout the manual,
procedures are outlined using the RCU-014, unless otherwise specified.

1.1.1 Control Unit RCU-014

You can control almost all aspects of your radar from the RCU-014. The figure and
table below show an overview of the control unit with a brief description of the controls.

OFF

EBL

F1

F3 F4

ALARM

ACK

ON

F2

STBY

TX

BRILL

HL

OFF

45

OFF

CENTER

78

VECTOR

TIME

CANCEL

TRAILS

21

EBL

OFFSET

CU/TM
RESET

VECTOR

MODE

0

BRILL

A/C SEAA/C RAIN

3

MODE

6

INDEX

LINE

9

TARGET

LIST

ENTER

MARK

GAIN

OFF

MENU

+

RANGE

ON

VRM

ACQ

TARGET

DATA

TARGET

-

CANCEL

No. Control Name Description

1 Power button Turn the power on or off. See section 1.2.

EBL controls • EBL keys: Turn the EBLs on or off.

• EBL knob:
For IMO-types
Move the selected EBL. See section 1.33.

2

For C-types

• with the cursor shown: adjust the direction (bearing) of

EBLs, PI lines and the diamond cursor; moves the cursor up/
downwards.

• when entering marks in normal display mode: moves the

chart up/downwards.

BRILL knob Adjust echo brilliance and screen brilliance. See section 1.3.
A/C RAIN knob Adjust auto/manual clutter reduction for rain. See section 1.21.

3

A/C SEA knob Adjust auto/manual clutter reduction for rough seas. See

section 1.20.

GAIN knob Adjust the gain (sensitivity). See section 1.19.

1-1

1. OPERATIONAL OVERVIEW

No. Control Name Description

VRM controls • VRM keys: Turn the VRMs on or off.

• VRM knob:
For IMO-types
Move the selected VRM. See section 1.32.

4

Functions keys (F1 to
F4)

5

ALARM ACK key Acknowledge active alerts. See section 1.53.
STBY TX key Toggle the radar operation between transmit (TX) and standby

1, HL OFF key • With the menu open: Select menu item "1".

2, EBL OFFSET key • With the menu open: Select menu item "2".

3, MODE key For IMO-types

4, OFF CENTER key • With the menu open: Select menu item "4".

6

5, CU/TM RESET key • With the menu open: Select menu item "5".

6, INDEX LINE key • With the menu open: Select menu item "6".

7, VECTOR TIME key • With the menu open: Select menu item "7".

8, VECTOR MODE key • With the menu open: Select menu item "8".

9, TARGET LIST key • With the menu open: Select menu item "9".

For C-types

• with the cursor shown: adjust the distance (range) of VRMs

or PI line intervals; moves the cursor left/rightwards.

• when entering marks in normal display mode: moves the

chart left/rightwards.

• Perform a pre-registered function. See section 1.8.

• with pop up window shown: preform the operation shown in
the window.

(STBY). See section 1.15.

• Press and hold to hide the heading line. Release to re-show the
heading line. See section 1.44.1.

• Sets the positive/negative value to “+”. See section 1.13 and
section 1.9.

• Offset or reset the EBL. See section 1.34.

• With the menu open: Select menu item "3".

• Change the orientation mode. See section 1.30.

For C-types

When the MODE key is set to ORIENTATION:

Same operation as IMO-types.

When the MODE key is set to CURSOR/DISPLAY:

• With the menu open: Select menu item 3.

• Show/hide the cursor.

• With the cursor shown: enable or disable off-center. See
section 1.36.

• With the cursor hidden (C-types only): move the screen cen-
ter (OS position).

• Course Up mode: Reset the heading line to 000°. See
section 1.30.

• True Motion mode: Move Own Ship position 75% of the radius
in opposite direction of the current heading. See section 1.30.

• Short press: Select a PI line. See section 1.40.

• Long press: Show or hide the selected PI line. See
section 1.40.

• Change the vector time. See section 3.10.2.

• Sets the positive/negative value to “-”. See section 1.13 and
section 1.9.

• Toggle between true and relative vectors. See section 3.10.

• Show or hide the TT/AIS target list. See section 3.9.3.

1-2

1. OPERATIONAL OVERVIEW

No. Control Name Description

CANCEL TRAILS key

6

0, BRILL key • With the menu open: Select menu item "0".

ENTER MARK key Inside the Operational Display Area (ODA):

MENU key Open or close the menu the menu. See section 1.5.

RANGE controls Increase or decrease the range. See section 1.31.
ACQ key • Manually acquire the cursor-highlighted target for Target Track-

7

TARGET DATA key • Show the information for the cursor-highlighted target.

TARGET CANCEL key • Cancel tracking for the selected target.

8 Trackball controls See section 1.1.3.

Without the menu open (see section 1.37.2

• Short press: Change the trail display time.

• Long press: Erase displayed trails.
With the menu open (see section 1.5

• Go back one level in the menu. Closes the menu if the top level
is displayed.

• Cancel changes made to a menu setting.

• Change the color scheme. See section 1.46.

Inscribe a mark. See section 1.44.
With the menu open:
Confirm changes, open the selected menu. See section 1.5

Note: The MENU key will not open/close the menu in the following
situations:

• VRM or EBL is being set.

• DROP MARK or MARK is being inscribed.

• Alarm Zone (AZ) or TARGET ALARM is being set.

ing (TT).

• Activate a sleeping AIS target. See section 3.2.

• Sleep the selected AIS target.

• Long press: Cancel tracking for all TT targets. See section 3.2.

• Delete marks/waypoints*.

• Cancel character input*.

*: C-type only.

):

):

1-3

1. OPERATIONAL OVERVIEW

1.1.2 Control Unit RCU-031 (C-types only)

The figure and table below show an overview of the control unit with a brief description
of the controls.

F3

STBY

㻝

㻠

CENTER

㻣

CANCEL

TRAILS

HL

OFF

OFF

TIME

PUSH
AUTO

㻞

㻡

㻤

㻜

VECTORVECTOR

EBL

OFFSET

CU/TM
RESET

MODE

MARK
SELECT

PUSH
AUTO

EBL

EBL

OFF

PUSH-PLOTTER

TX

BRILL

TRACK

F2F1

COLOR

F4

A/C RAIN A/C SEA

ON

TRACK
ON/OFF

GOTOWPT

MODE

㻟

INDEX

㻢

CURSOR

㻥

ON/OFF

ENTER

MARK

LINE

PUSH
AUTO

GAIN

MENU

㻗

RANGE

㻙

VRM
OFF

VRM

ON

ACQ

TARG ET

DATA

TARGET
CANCEL

ALERT

ACK

No. Control Name Description

1 Power button Turn the power on or off. See section 1.2.

EBL controls • EBL keys: Turn the EBLs on or off.

• EBL knob:

• with the cursor shown: adjust the direction (bearing) of

2

EBLs, PI lines and the diamond cursor; moves the cursor up/
downwards.

• when entering marks in normal display mode, or in

standby: moves the chart up/downwards.

A/C RAIN knob • Turn: Adjust auto/manual clutter reduction for rain. See

section 1.21.

• Press: Toggle the A/C RAIN function on/off.

A/C SEA knob • Turn: Adjust auto/manual clutter reduction for rough seas. See

3

section 1.20.

• Press: Toggle the A/C SEA function on/off.

GAIN knob • Turn: Adjust the gain (sensitivity). See section 1.19.

• Press: Toggle the ACE (Automatic Clutter Elimination) function
on/off.

VRM controls • VRM keys: Turn the VRMs on or off.

• VRM knob:

4

• with the cursor shown: adjust the distance (range) of VRMs

or PI line intervals; moves the cursor left/rightwards.

• when entering marks in normal display mode, or in

standby: moves the chart left/rightwards.

STBY TX key Toggle the radar operation between transmit (TX) and standby

(STBY). See section 1.15.
BRILL knob Adjust echo brilliance and screen brilliance. See section 1.3.
Functions keys (F1 to

5

F4)

• Perform a pre-registered function. See section 1.8.

• with pop up window shown: preform the operation shown in
the window.

TRACK COLOR key Opens the [CHANGE TRACK COLOR] window.
TRACK ON/OFF key Starts/stops own ship track recording.

1-4

1. OPERATIONAL OVERVIEW

No. Control Name Description

WPT key Opens the [WAYPOINT ENTRY] window.

5

GOTO key Set/remove a GOTO destination.
1, HL OFF key • With the menu open: Select menu item "1".

2, EBL OFFSET key • With the menu open: Select menu item "2".

3, MODE key When the MODE key is set to ORIENTATION:

4, OFF CENTER key • With the menu open: Select menu item "4".

5, CU/TM RESET key • With the menu open: Select menu item "5".

6, INDEX LINE key • With the menu open: Select menu item "6".

6

7, VECTOR TIME key • With the menu open: Select menu item "7".

8, VECTOR MODE key • With the menu open: Select menu item "8".

9, TARGET LIST key • With the menu open: Select menu item "9".

CANCEL TRAILS key

0, BRILL key • With the menu open: Select menu item "0".

ENTER MARK key Inside the Operational Display Area (ODA):

(Requires [ROUTE DATA SOURCE] in the [ROUTES•WAY­POINTS] to be set as [INTERNAL DATA].)

• Press and hold to hide the heading line. Release to re-show the
heading line. See section 1.44.1.

• Sets the positive/negative value to “+”. See section 1.13 and
section 1.9.

• Offset or reset the EBL. See section 1.34.

• With the menu open: Select menu item "3".

• Change the orientation mode. See section 1.30.

When the MODE key is set to CURSOR/DISPLAY:

• With the menu open: Select menu item 3.

• Show/hide the cursor.

• With the cursor shown: enable or disable off-center. See
section 1.36.

• With the cursor hidden: move the screen center (OS posi­tion).

• Course Up mode: Reset the heading line to 000°. See
section 1.30.

• True Motion mode: Move Own Ship position 75% of the radius
in opposite direction of the current heading. See section 1.30.

• Short press: Select a PI line. See section 1.40.

• Long press: Show or hide the selected PI line. See
section 1.40.

• Change the vector time. See section 3.10.2.

• Sets the positive/negative value to “-”. See section 1.13 and
section 1.9.

• Toggle between true and relative vectors. See section 3.10.

• Show or hide the TT/AIS target list. See section 3.9.3.

Without the menu open (see section 1.37.2

• Short press: Change the trail display time.

• Long press: Erase displayed trails.

With the menu open (see section 1.5

• Go back one level in the menu. Closes the menu if the top level
is displayed.

• Cancel changes made to a menu setting.

• Change the color scheme. See section 1.46.

Inscribe a mark. See section 1.44.
With the menu open:
Confirm changes, open the selected menu. See section 1.5

):

):

1-5

1. OPERATIONAL OVERVIEW

No. Control Name Description

MENU key Open or close the menu the menu. See section 1.5.

Note: The MENU key will not open/close the menu in the following

situations:

• VRM or EBL is being set.

• DROP MARK or MARK is being inscribed.

• Alarm Zone (AZ) or TARGET ALARM is being set.

RANGE controls Increase or decrease the range. See section 1.31.
ACQ key • Manually acquire the cursor-highlighted target for Target Track-

7

TARGET DATA key • Show the information for the cursor-highlighted target.

TARGET CANCEL key • Cancel tracking for the selected target.

ALARM ACK key Acknowledge active alerts. See section 1.53.

8 Trackball controls See section 1.1.3.

ing (TT).

• Activate a sleeping AIS target. See section 3.2.

• Sleep the selected AIS target.

• Long press: Cancel tracking for all TT targets. See section 3.2.

• Delete marks/waypoints.

• Cancel character input.

1-6

1.1.3 Control Unit RCU-015/RCU-016

F1

F3

F4

F2

The RCU-015 and RCU-016 offer an easy to use mouse-like control interface, without
the bulkiness of the RCU-014. You can access all your radar functions from the RCU­015/RCU-016, however, only the function keys are available as short-cut keys.

1. OPERATIONAL OVERVIEW

No. Control Name Description

1 Power button* Turn the power on or off.

See section 1.2.

2 Functions keys

(F1 to F4)

3 Right mouse

button

Perform a pre-registered function.
See section 1.8.

Short press:

• Show the pop up menu for the highlighted item.

• Cancel changes to the currently selected setting.

• With TT target or mark symbol highlighted: Open the
editing window (C-types only).

• With pop up menus shown: Hide pop up menus.

Long press:

• Change the screen brilliance to [50].

4 Scrollwheel • Change settings.

• Highlight a menu item.

• With TT target selected: Change the TT target’s symbol
(C-types only).

5 Left mouse button Select a highlighted object or menu item.
6 Trackball For IMO-types

• Moves the cursor.

• Highlight an object or menu item.

For C-types

• Moves the cursor (when the cursor is shown).

• Moves the chart (when the cursor is hidden).

• Highlight an object or menu item.

*: The RCU-016 Control Unit has no power button. To turn the power on or off when

using a RCU-016 Control Unit, use the power button on the RCU-014/RCU-015/
RCU-031 Control Unit.

About the terminology used in this manual

Unless otherwise started, the terms “click” and “left-click” mean “use the trackball to
place the cursor on the specified item, then press the left mouse button”. The term
“right-click” means “use the trackball to place the cursor on the specified item, then
press the right mouse button”.

1-7

1. OPERATIONAL OVERVIEW

XXXXXX

Indicates the permit number.

1.2 How to Turn the Radar On/Off

The power button ( ) is located at the top-left corner of the RCU-014, RCU-015 and
RCU-031 Control Units.

To turn the power on

The LED to the left of the power button lights up (green color) and the system begins

the startup process. The indication "Initializing......" appears at the center of the

screen.

C-types also display two messages regarding charts, after the startup process is com­plete.

When the startup process is complete, the system begins warm-up procedures to pre­pare the magnetron for transmission. The warm-up can take up to three minutes.

During the warm-up, indications for total on-time (magnetron on-time since installa­tion) and total transmission time (since installation) appear below the warm-up count­down timer. These indications are also displayed when the radar is in standby mode.

, open the power switch cover, then press the power button.

When the warm-up process is complete, the radar goes into standby (STBY) mode
and the indication "RADAR STBY" (IMO-types) or "STBY" (C-types) appears. This in­dication also appears whenever the equipment is in STBY mode.

Note 1: For C-types, the “STBY” indication appears only once, when the equipment is
turned on. Further, the numerals on the heading dial (outer-most range ring) are not
shown and the AIS function is active, however the TT function is inactive while in
standby (STBY) mode.

Note 2: Do not turn on the power directly after it has been turned off. Wait several sec­onds before you reapply the power, to be sure the radar starts up properly.

Note 3: The RCU-016 Control Unit has no power button. To turn the power on or off
when using a RCU-016 Control Unit, use the power button on the RCU-014/RCU-015/
RCU-031 Control Unit.

Note 4: Solid state radars do not have a magnetron, therefore they have no warming
period.

To turn the power off

, open the power switch cover, then press the power button.

1-8

1.3 How to Adjust the Brilliance

The screen brilliance (brightness) for monitors can be adjusted as shown below.

Note: The following procedure applies only to monitors supplied by FURUNO for this
system. For other monitors, see the monitor operator’s manual to adjust the brilliance.

Brilliance adjustment from the Control Unit (RCU-014/RCU-031)

Rotate the BRILL knob clockwise to increase the brilliance (brighter), or rotate the
BRILL knob counter-clockwise to reduce the brilliance (darker).

Brilliance adjustment from the on-screen box

Select the brilliance indication in the lower half of the
[BRILL] box, the spin the scrollwheel on the Control Unit
upwards to reduce the brilliance (darker) or downwards to
increase the brilliance (brighter).

Note: The above scrollwheel operation is based on default
settings for [2 MOUSE WHEEL DIR]. See section 1.9.

1. OPERATIONAL OVERVIEW

[

BRILL] box

1.4 Display Overview

1.4.1 Display examples

C-type radars have two display formats, [NORMAL] and [SIMPLE]. IMO-types have
one standard display format. The information shown on-screen changes depending
on the radar type and the display format selected.

You can change the display format for C-types from [6 DISPLAY MODE] (located in
[9 INITIAL SETTINGS]  [5 OPERATION] menu; see section 1.9).

Note 1: The example screen below may differ slightly from your display, depending
on the monitor used in your configuration. The overall information however, is the
same.

Note 2: Unless otherwise indicated, the example figures for C-type radars used in this
manual are taken using the [NORMAL] display.

Display specifications

Nominal viewing distance 1.02 m 1.20 m 1.02 m
Text height (min. font) 3.53 mm 4.23 mm 3.64 mm
Text width (min. font) 2.36 mm 2.97 mm 2.43 mm

MU-190/190HD MU-231 MU-270W

1-9

1. OPERATIONAL OVERVIEW

XXXXX

xxxxxxxxx

SART

REV

Standard display

• IMO-type standard display

• C-type standard display

SART

xxxxxxxxx

(Japan)

1-10

1. OPERATIONAL OVERVIEW

No. Name Description

1

InstantAccess bar

™

Contains functions and features which are used regularly
and allows easy access/activation. For descriptions of each

button on the bar, see section 1.4.2
2 [RANGE] box Shows/changes the current range in use.
3 [REF POINT] box Shows/changes the point of reference.
4 Indications Shows indications for SART, shuttle ferry mode (IMO-type

only) etc.
5 [WATCH] box • Shows the watch alert countdown timer.

• Resets the watch alert countdown.

6 [ECHO ADJUST] box Place the cursor on a box to adjust the setting.

• [GAIN] bar: Shows the level of gain in use.

• [SEA] bar: Shows the level and mode of sea clutter re­duction.

• [RAIN] bar: Shows the level and mode of rain clutter re­duction.

7 Cursor position details Shows the location (coordinates) of the cursor with the es-

timated TTG to the cursor position.
8 [MAP ALIGN] indication Shows/hides the map alignment status.
9 [MENU] box Opens/closes the menu.

10 Date/Time • Shows date and time (with offset indication).

• Working indication (blue circle) indicates that the system
is working correctly. Stops rotating when the system is
frozen or malfunctioning.

11 Own Ship information

Shows heading, speed, water tracking speed*

2

SOG*
*

, coordinates and sensor used for data input.

1

: Drift speed and direction (port/starboard) is indicated

1

, COG,

with arrows and numerals.

2

*

: When connected with a speed log, the indication chang-

es to read "SLOG".

12 Information box • Shows information for selected TT or AIS targets.

• Shows the currently selected menu.

• Shows navigational data.

• Shows the performance monitor graph.

• Shows the zoomed area.

13 TT/AIS settings • Adjust TT/AIS vector settings.

• Adjust CPA/TCPA settings.

• Activate/sleep AIS targets.

• Adjust lost target alert settings.

• Adjust track plotting intervals.

• Adjust trail times.

14 Alert box Shows active alerts and contains the buzzer silence button

and a shortcut to the alert list.

15 Guidance box Shows operational guidance for the Control Unit’s left but-

ton and right button.

16 [TGT LIST] box Shows the target details list for tracked TTs and active AIS

targets.

17 [ACQUISITION ZONE] box • Adjust acquisition zone settings for target alarms.

• Toggle between sentry zone and acquisition zone alert
modes.

18 [VRM] box • Activate/deactivate the VRM (Variable Range Marker).

• Adjust the active (selected) VRM.

• Shows VRM range and TTG.

19 [DROP MARK] box Shows the bearing and range to the drop mark(s).

1-11

1. OPERATIONAL OVERVIEW

No. Name Description

20 [EBL] box • Activate/deactivate the EBL (Electronic Bearing Line).

• Adjust the active (selected) EBL.

• Shows EBL bearing.

21 [MARK] box • Selects a map mark to use.

• Inscribes the selected map mark.

• Right-click: opens the [RADAR MAP] menu (IMO­types); opens the [MARK] menu (C-types).

22 [PI Lines] box • Selects PI line set to use.

• Shows/hides the selected PI lines.

• Shows the angle, reference and range interval for the PI
lines.

23 Screenshot button Saves a screenshot of the entire displayed area.

Note: Requires SD card to be inserted in the Processor
Unit. Shown in gray and not selectable if no SD card is in­serted.

24 [PRESENTATION MODE] box Change the presentation (orientation) mode for the radar

images.
25 [ANTENNA SELECTION] box Selects the antenna to use for radar images.
26 [PICTURE] box Customize the way in which echoes are displayed.
27 [TUNING LEVEL] bar • Shows the level of tuning in use. See section 1.16.

• Adjusts the tuning (manual only). See section 1.16.3.

Note 1: The [TUNING LEVEL] bar is not shown for solid

state radars.

Note 2: The [TUNING LEVEL] bar is not shown on FAR-

2258 and FAR-2268DS monitors which are assigned as

[SUB] at installation.
28 [NOISE REJECTOR] indication Shows the noise rejector function’s ON/OFF status.

29 [TARGET ANALYZER] indica-

tion

30 User settings box* • Loads pilot settings.

31 [TRIAL MANEUVERS] box* • Activates/deactivates trial maneuvers.

Shows the target analyzer function’s ON/OFF status.

Note: Appears only for C-type.

• Opens the [USER SET] menu.

• Sets up trial maneuver parameters.

*: Shown only for IMO-types.

1-12

1. OPERATIONAL OVERVIEW

Not shown in [SIMPLE]
display mode.

SART

xxxxxxxxx

(Japan)

Simple display (C-types only)

Note: TT/AIS settings are not available in the simple display. To change or adjust TT/

AIS settings, make the changes/adjustments at the standard display, then switch to
the simple display.

No. Name Description

1

InstantAccess bar

™

Contains functions and features which are used regularly and al­lows easy access/activation. For descriptions of each button on the

bar, see section 1.4.2
2 [RANGE] box Shows/changes the current range in use.
3 [REF POINT] box Shows/changes the point of reference.
4 Indications Shows indications for SART, etc.
5 [WATCH] box • Shows the watch alert countdown timer.

• Resets the watch alert countdown.

6 [ECHO ADJUST] box Place the cursor on a box to adjust the setting.

• [GAIN] bar: Shows the level of gain in use.

• [SEA] bar: Shows the level and mode of sea clutter reduction.

• [RAIN] bar: Shows the level and mode of rain clutter reduction.

7 Cursor position details Shows the location (coordinates) of the cursor with the estimated

TTG to the cursor position.
8 [MAP ALIGN] indication Shows/hides the map alignment status.
9 Date/Time Shows date and time (with offset indication).

1-13

1. OPERATIONAL OVERVIEW

No. Name Description

10 Own Ship information

Shows heading, speed, water tracking speed*

1

, COG, SOG*2, co-

ordinates and sensor used for data input.

1

: Drift speed and direction (port/starboard) is indicated with ar-

*
rows and numerals.

2

*

: When connected with a speed log, the indication changes to

read "SLOG".

11 Information box • Click [MENU] to show the menu.

• Click [DATA] to show the data box; the following information can
be displayed.

• Shows information for selected TT or AIS targets.

• Shows navigational data.

• Shows the performance monitor graph.

12 [TGT LIST] box Shows the target details list for tracked TTs and active AIS targets.
13 [ACQUISITION ZONE]

box

• Adjust acquisition zone settings for target alarms.

• Toggle between sentry zone and acquisition zone alert modes.

14 Alert box Shows active alerts and contains the buzzer silence button and a

shortcut to the alert list.

15 Guidance box Shows operational guidance for the Control Unit’s left button and

right button.

16 [VRM] box • Activate/deactivate the VRM (Variable Range Marker).

• Adjust the active (selected) VRM.

• Shows VRM range and TTG.

17 [DROP MARK] box Shows the bearing and range to the drop mark(s).
18 Vector/Trail box • Set vector/trail times for TT/AIS targets.

• Switch between true/relative trails and vectors.

19 [EBL] box • Activate/deactivate the EBL (Electronic Bearing Line).

• Adjust the active (selected) EBL.

• Shows EBL bearing.

20 [MARK] box • Selects a map mark to use.

• Inscribes the selected map mark.

• Right-click: opens the [MARK] menu.

21 [PI Lines] box • Selects PI line set to use.

• Shows/hides the selected PI lines.

• Shows the angle, reference and range interval for the PI lines.

22 Screenshot button Saves a screenshot of the entire displayed area.

Note: Requires SD card to be inserted in the Processor Unit.
Shown in gray and not selectable if no SD card is inserted.

23 [PRESENTATION

Change the presentation (orientation) mode for the radar images.

MODE] box

24 [ANTENNA SELEC-

Selects the antenna to use for radar images.

TION] box
25 [PICTURE] box Customize the way in which echoes are displayed.
26 [TUNING LEVEL] bar • Shows the level of tuning in use. See section 1.16.

• Adjusts the tuning (manual only). See section 1.16.3.
Note 1: The [TUNING LEVEL] bar is not shown for solid state ra­dars.
Note 2: The [TUNING LEVEL] bar is not shown on FAR-2258 and
FAR-2268DS monitors which are assigned as [SUB] at installation.

27 [NOISE REJECTOR] in-

Shows the noise rejector function’s ON/OFF status.

dication
28 [TARGET ANALYZER]

indication

Shows the target analyzer function’s ON/OFF status.

Note: Appears only for C-type.

1-14

1. OPERATIONAL OVERVIEW

C-typeIMO-type

Upper half of the
InstantAccess bar™ is
comprised of functions
which are available for
both IMO and C-types.

Lower half of the

InstantAccess bar™

contains type-specific

functions.

PULSE

L

IR

OFF

1.4.2 InstantAccess bar

The InstantAccess bar™ contains functions and features which are used regularly and
allows easy access/activation. For descriptions of each button on the bar, see the ta­ble in this section.

™

Button Description

Upper Half - Common functions/features for both IMO and C-types

[Standby/Transmit] button.
Toggle between standby (STBY) and transmit (TX).

[Pulselength] button.
Selects the pulselength.
Note: The [Pulselength] button is not shown on FAR-2258 and FAR-2268DS monitors

TUNE

MAN

ES

OFF

which are assigned as [SUB] at installation; instead the button is replaced with the indica­tion "SUB".

[Tune] button.
Toggles between automatic and manual tuning. (See section 1.16.1.)
Note 1: For SSD antennas, this button appears as "TX CH x" (“x” denotes the channel
used for transmission). If your radar is receiving interference from another radar operating
at the same frequency, use the [TX CH] button to change the TX frequency.
Note 2: The [Tune] button is grayed out and inoperable on FAR-2258 and FAR-2268DS
monitors which are assigned as [SUB] at installation.

[Interference Rejector] button.
Activates/deactivates the interference rejector feature.

Echo Stretch button.
Activates/deactivates the echo stretch function.
Note: This item is grayed out under the following conditions:

• ACE function is active.

• No position data is input (excludes Dead Reckoning).

1-15

1. OPERATIONAL OVERVIEW

ACE
OFF

MAP

OFF

AIS

PLT1

100

CHART

ON

MAP

OFF

HL

OFF

MOB

AIS

Button Description

EAV
OFF

Lower Half - IMO-types

[Echo Average] button.
Activates/deactivates the echo average function.

[ACE] button.
Activates/deactivates the ACE (Auto Clutter Elimination) function.

[Radar Map] button.
Shows/hides the radar map marks.

HL

[HEADING LINE] button.
Left-click and hold to hide the heading line.

OFF

CU/TM

RESET

OWN

AIS

Lower Half - C-types (Standard and Simple display modes)

[CU/TM RESET] button

• Puts the ship’s heading at the top of the screen in course-up mode the moment this but­ton is pressed.

• Resets the ship's position to a point of 75% radius opposite to the extension of the head­ing line passing through the display center in true motion modes.

[Own Ship AIS] button.
Shows the AIS VOYAGE DATA for AIS data setup.

[AIS Message] button.

• Displays received AIS messages.

• Opens the [AIS Message] menu.

[Brilliance] button.

• Adjusts the screen brilliance

• Opens the [BRILLIANCE] menu.

• Selects the color palette. See section 1.46.3.

[Chart] button.

• Shows/hides the chart.

• Opens the [CHART] menu.

[Radar Map] button.
Shows/hides the radar map marks.

PLT1

100

[HEADING LINE] button.
Left-click and hold to hide the heading line.

[MOB] button
Inserts an MOB mark at the current OS location.

[WPT MARK] button. (Icon shown to the left changes depending on your selection.)

• Left-click/Spin the scrollwheel to select a waypoint (WPT) mark icon to use.

• Right-click to show the [ROUTES•WAYPOINTS] menu.

[AIS Message] button.

• Displays received AIS messages.

• Opens the [AIS Message] menu.

[Brilliance] button.

• Adjusts the screen brilliance

• Opens the [BRILLIANCE] menu.

• Selects the color palette. See section 1.46.3.

1-16

1.5 Menu Operations

IMO-types’ Main Menu C-types’ Main Menu

1.5.1 How to open and close the main menu

The main menu can be accessed from the control unit or from the on-screen box. The
[MAIN MENU] appears in the information box at the right side of the screen.

From the control unit (RCU-014/RCU-031)

Press the MENU key on the control panel.

From the on-screen box

Select the [MENU] box, then press the left button.

1. OPERATIONAL OVERVIEW

Note 1: For the sake of abbreviation in procedures, the above methods are written col­lectively as “Open the menu.” and “Close the menu.”

Note 2: Unless otherwise stated, this manual uses display and menu examples from
the C-type.

1-17

1. OPERATIONAL OVERVIEW

1.5.2 How to operate the menus

1. Open the menu.

2. Roll the scrollwheel to select a menu item, then left-click. The menu item currently
selected is highlighted and shown in reverse video. You can also select a menu
item by pressing the corresponding numeric key on the control unit.

Menu selection is
highlighted and in
reverse video.

Select menu items with arrows ( ) to access the next menu layer.
In this example, the [ECHO] menu is accessed, then the [CUSTOMIZED ECHO] menu
is accessed.

The next menu layer appears. Menu items with arrows, as shown in the above ex­ample figure, have their own menu layer. You can select these items to show the
respective menu.

3. Roll the scrollwheel to select a menu item, then left-click. You can also select a
menu item by pressing the corresponding numeric key.
When required. repeat this step to access the next menu.
In the example, [1 ECHO] is selected, which opens the [ECHO (1/2)] menu. Next,
[2 CUSTOMIZED ECHO] is selected, which opens the [CUSTOMIZED ECHO (1/

2)] menu. Finally, [3 ECHO STRETCH] is selected, in order to change settings.
Menus such as the [ECHO] menu and [CUSTOMIZED ECHO] menu have more
than one page. In this case, the currently displayed page is indicated in brackets
to the right of the menu title.

To view the next page of a menu, select [0 NEXT].
To go back one layer (or page) in the menu, left-click [1 BACK], or right-click.

4. Roll the scrollwheel to select the desired setting, then left-click. The selected set­ting is highlighted and displayed in reverse video.
In the above example, the selected setting at [3 ECHO STRETCH] is [1].

1-18

5. Close the menu.

Note 1: Unless otherwise stated, operations in this manual use the scrollwheel for pro­cedures which require menu selection, or settings changed.

Note 2: The term “Select” has the following meanings in this manual:

• Use the trackball to place the cursor on the indicated item, then left-click.

• Roll the scrollwheel to select the indicated menu option/setting.

1.5.3 Alphanumeric input

The data-input cursor appears as a
box over the current selection.

The data-selection cursor appears as a
filled square over the current selection.

Press F3 to toggle
between upper
and lower case
characters.

When alphanumeric input is required, the software keyboard (shown in the figure be­low) or the alphanumeric input window (C-types only) appears.

Operating the software keyboard

Select the number/character desired with the cursor, then left-click. When you finish
entering the desired numbers/characters, left-click the [END] button on the software
keyboard.

Alphanumeric input window

1. OPERATIONAL OVERVIEW

1. Using the trackball or the scrollwheel, select the character/numeral you want to
input, then left-click. The selected character/numeral appears at the location of the
data-input cursor, then the data-input cursor moves to the next character/numeral.

2. Repeat step 1 as required.

• To move the data-input cursor, select [] or [] as required.

• To delete a character/numeral, move the data-input cursor to the character/nu-

meral that you want to delete, then left-click [Delete].

• To clear the input area of all characters/numerals, press and hold F1.

3. Select [ENTER] to complete alphanumeric input and close the window.

Note: You can store up to five “input shortcuts”. These shortcuts appear in the [SE­LECTIONS] column of the window. To create/edit a shortcut, press the appropriate
key, as listed below.

• [SELECTION 1]: 1 HL OFF

• [SELECTION 2]: 2 EBL OFFSET

• [SELECTION 3]: 3 MODE

If no shortcuts are registered by the user, the system stores the 5 most frequently used
items to each of the shortcuts.

• [SELECTION 4]: 4 OFF CENTER

• [SELECTION 5]: 5 CU/TM RESET

1-19

1. OPERATIONAL OVERVIEW

1.6 How to Use the On-screen Box Menus

Some radar functions can be accessed using the on-screen box as a shortcut to the
respective menus. A “” at the right side of an on-screen box indicates that there is a
menu shortcut available.

Note: The cursor changes shape according to its location. When placed outside the

operational display area the cursor is an arrow ( ) shape. When placed inside the

operational display area, it is a cross ( ).

Select the palette
indication, then
right-click.

For the purpose of this example, place the cursor on the palette indication (displayed
as "PLTx", where x is the currently selected palette number), inside the brilliance set­tings box at the bottom-left of the screen.

The selected item appears highlighted with a light-blue colored box.

Right-click to show the brilliance menu.

Shortcuts are available from the following on-screen boxes/indications/buttons:

• [PICTURE] box.

• [AIS] box.*

• [TT] box.*

• [HDG] indication.

• [SPD] indication.

• [POSN] indication.

• [PLT] indication.
*: Not shown on C-type simple display.

**: Shown only on IMO-types.
***: Shown only on C-types.

• [ANTENNA SELECTION] box.

• User settings box.**

• [MARK] box.

• Time indication ("UTC" or "Local").

• [TRAIL] indication.

• [CHART] button.***

• [WPT MARK] button.***

1-20

1. OPERATIONAL OVERVIEW

Cursor data display area 1

Cursor data display area 2

TTG (Time to go) to
cursor location

1.7 [CURSOR] Menu and Cursor Operations

1.7.1 How to show/hide the cursor (C-type only)

You can show/hide the cursor with one of the following methods:

• Press the 9 CURSOR ON/OFF key.

• Press the 3 MODE key. This method requires [5 MODE KEY FUNCTION] set to

[CURSOR ON-OFF] (located in [9 INITIAL SETTINGS]  page 2 of [5 OPERA­TIONS] menu; see section 1.9).

• Press the function key assigned with [CURSOR ON-OFF] (see section 1.8).

• Select [CURSOR ON-OFF] from the [CURSOR] menu (see section 1.7.3).

1.7.2 Cursor data box

Place the cursor on a target/echo to show information for that location in the cursor
data box, located at the top-right of the display (see example figure below).

The following data can be shown in the cursor data box.

Radar

type

IMO-type Latitude/longitude for the

C-type • Latitude/longitude for the cursor location.

*: Requires [8 LORAN/DECCA] set to [ON] in the [4 CURSOR] menu (located in the

[3 CURSOR•EBL•VRM] menu)

Place the cursor on the cursor data area (1 or 2) in the cursor data box, then press the
left button to change the displayed information. For IMO-types, data area 1 is fixed
at latitude/longitude and cannot be changed.

Note 1: For the X-Y co-ordinates display, the Y-axis is the upper/lower half of the
screen, the upper half of the screen is “plus” and the lower part of the screen is “mi­nus”. The X-axis is the left/right-side of the screen, right is “plus”, left is “minus”.

Note 2: Cursor data reads "- - -.-" when the cursor is placed outside the operational
display area.

Cursor data display area 1 Cursor data display area 2

• Range and bearing to the cursor location.

cursor location.

• Range and bearing to the cursor location.

• X/Y coordinates for the cursor location.

• Difference between cursor location and Loran/Decca data.*

• X/Y coordinates for the cursor location.

1-21

1. OPERATIONAL OVERVIEW

1.7.3 How to Use the [CURSOR] Menu

Functions that require the use of the cursor,
such as EBL offset and zoom, can be activated
directly from the [CURSOR] menu. Below is
the procedure for choosing cursor-related
functions from the [CURSOR] menu.

1. Select the operational display area, then
press the right button.
The [CURSOR] menu appears.

2. Select the desired function, then left-click.

3. The guidance box shows "XX / EXIT" (XX
= function selected). Use the trackball to
place the cursor where desired.
Note: You can also select the cursor func­tion, when the cursor is inside the opera­tional display area, by spinning the
scrollwheel.

4. Left-click to execute the function selected
at step 3.

5. To quit the selected function, right-click when the guidance box shows "XX / EXIT"
(XX = function selected).
The table below list the contents of the cursor context menu with a brief descrip­tion.

Menu Item Description

Page 1
[TARGET DATA / ACQ] TT: Acquires target; displays data for selected

tracked target.
AIS: Activates sleeping AIS target; displays data
for selected AIS target.

[TARGET CANCEL] TT: Cancels tracking on selected tracked target.

AIS: Sleeps selected AIS target.

[TT TGT DATA / ACQ] Acquires selected echo as tracked target.
[REF MARK]*

[EBL OFFSET] Offsets EBL to measure range and bearing be-

[OFFCENTER] Shifts screen center to selected location.
[ZOOM] Zooms selected location.
[MARK DELETE] Deletes selected mark (plotter mark, origin mark

[OWN TRACK DELETE] Deletes own ship's tracks.
[MAP ALIGN] Aligns charts (maps) with the radar picture.

[TRAIL ERASER]*
[MARK SELECT]*
[MOVE MARK•WPT]*
[WPT]*
[GO TO]*

2

1

2

2

2

2

Inscribes reference mark, for target-based speed
input.

tween two targets.

or waypoint mark).

Erases trails.
Opens the [MARK COLOR/SHAPE] window.
Moves the selected mark or waypoint.
Inserts a waypoint.
Selects/deselect a destination.

1-22

1. OPERATIONAL OVERVIEW

Menu Item Description

[TRACK COLOR]*
[TRACK ON/OFF]*
[CURSOR ON/OFF]*

Page 2
[TARGET DATA / ACQ SETTING] Change target tracking settings.
[TARGET CANCEL SETTING] Change target cancel settings.

[CIRCLE CURSOR]*

1

: For C-types, this menu item appears on page 2 of the [CURSOR] menu.

*

2

*

: These menu items only appear for C-types.

2

2

2

2

Opens the [CHANGE TRACK COLOR] window.
Start/stop track recording.
Show/hide the cursor.

Insert/remove the circle cursor.

Note 1: Menu items set to [OFF] at [CURSOR MENU SELECT] (located in [9 INITIAL
SETTINGS]  page 2 of the [5 OPERATION] menu) are not shown in the [CURSOR]
menu.

Note 2: The following [CURSOR] menu items appear for C-types when the cursor is
shown.

• [TARGET CANCEL]

• [EBL OFFSET]

• [MAP ALIGN]

• [TT TGT DATA / ACQ]

• [ZOOM]

• [TRAIL ERASER]

• [REF MARK]

• [MARK DELETE]

• [MOVE MARK•WPT]

Note 3: The following items are not shown in the CURSOR menu when the radar is
transmitting.

• [TT TGT DATA / ACQ]

• [ZOOM]

• [REF MARK]

• [MAP ALIGN]

• [EBL OFFSET]

• [TRAIL ERASER]

1.7.4 How to change the cursor data attributes (C-type only)

You can change the cursor bearing reference, cursor range unit, cursor size and also
align the cursor by latitude/longitude. Changing some of these settings affects the in­dications in the cursor data display.

1. Open the menu.

2. Select [3 EBL•VRM•CURSOR SET].

3. Select [4 CURSOR]. The [CURSOR] menu appears.

1-23

1. OPERATIONAL OVERVIEW

A

A

4. Select the item you want to change, referring to the list below.

• [2 CURSOR BEARING]: Sets the bearing reference.

• [3 CURSOR RANGE]: Sets the unit of measurement for cursor range.
Note: If a different measurement unit is used for short distances, adjust the setting
(see section 1.32.4).

• [4 CURSOR SIZE]: Sets the cursor size.

• [5 CURSOR L/L ALIGN]*: Sets whether to align the cursor with latitude/longitude.

• [6 ENLARGED CURSOR INFO]: Sets whether to show enlarged cursor data box
contents in a separate window. You can move the enlarged data box with the fol­lowing procedure:

1) Place the cursor on the enlarged data box, then left-click.

2) Use the trackball to move the data box to the desired location.

3) Left-click to “anchor” the box at the new location.

• [7 CURSOR COLOR]: Sets the color for the cursor.

• [8 LORAN/DECCA]: Sets whether to show LORAN/DECCA data in the cursor
data box.

ppears when

[

CURSOR L/L]

LIGN] is set to

[ON]

.

*: For IMO-types, this menu item is located in [MAIN MENU]  [3 NAV TOOLS]
 [3 EBL•VRM•CURSOR SET].

5. Close the menu.

1.8 Function Keys

Some menu functions and menus can be assigned to a function key. This allows one­touch access to the assigned function or menu.

1.8.1 How to set the function key mode (C-types only)

You can set the function keys to have on of the following modes:

• SINGLE: One function per function key, activated when the key is pressed.

• MULTI: Multiple functions per function key. A function selection window appears
when the key is pressed.

To set the function mode, do the following:

1. Open the [MAIN MENU].

2. Select [9 INITIAL SETTINGS].

3. Select [6 FUNCTION KEY SETUP].

4. [0 NEXT] to show the second page of the

menu.

5. Select the appropriate function key whose

mode you want to change.

6. Select [SINGLE] or [MULTI], as required.

7. Close the menu.

1-24

1.8.2 How to use the function keys

To activate an assigned function, press the corresponding function key (F1, F2, F3 or
F4). The pre-assigned (default) functions differ, depending on your radar type (C-

types or IMO-type) and the selected mode (C-types only).

Default functions for C-types using [SINGLE] mode and IMO-types

Function key IMO-type default C-type default

F1 IR (Interference Rejector) TRK COLOR SEL
F2 ES (Echo Stretch) TRK INTVL
F3 AUTO-SEA MARK SELECT
F4 AUTO-RAIN TLL

Default function for C-types using [MULTI] mode

F1 F2 F3 F4

2 TRK COLOR SEL 2 TRK INTVL 2 MARK SELECT 2 TLL
3 IR 3 CHART DISPLAY 3 WPT 3 MOB
4 ES 4 NAV AIDS 4 GO TO 4 DISPLAY MODE
5 EAV 5 OWN TRACK

DISPLAY
6 ACE 6 TT-DISP 6 TRK INTVL 6 (Not assigned)
7 AUTO-SEA 7 AIS-DISP 7 CURSOR ON-

8 AUTO-RAIN 8 ((Not assigned)) 8 (Not assigned) 8 (Not assigned)
9 (Not assigned) 9 (Not assigned) 9 (Not assigned) 9 (Not assigned)

1. OPERATIONAL OVERVIEW

5 TRK COLOR SEL 5 SCREEN SHOT

7 (Not assigned)

OFF

To activate an assigned function [MULTI] mode, do the following:

1. Press the function key that contains the function you want to use.
The corresponding menu appears. (F4 is pressed in the following example.)

2. Select the appropriate function.

Note: You can select [9 Fx FUNCTION KEY] (where “x” is the number of the selected
function key) to access the function key setup menu.

1-25

1. OPERATIONAL OVERVIEW

When [SINGLE] is selected as the
key mode, the current setting for the
function key is shown here. Function
keys with [MULTI] selected as their
mode are hidden.

1.8.3 How to change the function(s) assigned to a key

You can change the function assigned to each key using the following procedure.

1. Open the [MAIN MENU].

2. Select [9 INITIAL SETTINGS].

3. Select [6 FUNCTION KEY SETUP]. The function key setup menu appears.

4. Select the function key to set up.
Note: If the selected key’s mode is set to [MULTI], the function selection menu ap-

pears after you select the function key.

5. Referring to the table of available functions below, select a function category, then
left-click.
You can check the currently assigned functions in the bottom half of the menu.

Function

category

Available functions

[2 ECHO] CUSTOM SELECT, IR, ES, EAV, NOISE REJ, ANT SELECT,

PULSE LENGTH, AUTO-SEA, AUTO-RAIN, TUNE SELECT*
TX CHANNEL*
PM, SART, ECHO TRAIL, TRAIL T/R, WIPER*
HIGH SENSITIVITY, TARGET ANALYZER*

3

, 2ND ECHO REJ, STC CURVE, STC RANGE,

1

, ACE, ACE

1

, TRAIL LENGTH

4

,

[3 STD KEY] ALERT ACK, STBY TX, HL OFF, EBL OFFSET, ORIENTA-

TION-MODE, OFF CENTER, CU-TM RESET, PI LINE, VEC­TOR TIME, VECTOR MODE, TARGET LIST, BRILL, MARK,
MENU, RANGE UP, RANGE DOWN, ACQ, TARGET DATA,
TARGET CANCEL

[4 TT•AIS] TT-DISP, AIS-DISP, TARGET DATA & ACQ, PAST POSN IN-

TERVAL, REF MARK, CPA LIMIT, CPA, TCPA, AZ1, AZ2,

2

, TRIAL MODE

1

1

, TGT TRK ALL

[5 DELETE DA­TA]

TARGET LIST SORT, TRIAL MANEUVER*
CHANGE*
SYMBOL, TT TRACK COLOR*
SORT-DISP*
BUOY LIST*

2

, ASSOCIATION, AIS MESSAGE, AIS SCALED

1

, AIS TRACK COLOR*1, CON-

1

, GPS BUOY-DISP*1, CONSORT LIST*1, GPS

1

, CONSORT MESSAGES*
MARK DELETE, MARK ALL DELETE, OWN TRK DELETE,
OWN TRK ALL DELETE, TGT TRK DELETE*
DELETE*

1

1-26

1. OPERATIONAL OVERVIEW

Function
category

[6 OPERATION]

[7 PLOTTER]*

1

BUZZER STOP, ECHO AREA*
RING(ON/OFF), ZOOM, MOB*
ALERT RESET, TLL*
MARK, SCREEN SHOT, CHART DISPLAY*
CURSOR ON-OFF*
NET CURSOR SELECT*
WPT, GO TO, WAYPOINT LIST, MARK SELECT, TRK COLOR

Available functions

1

, ECHO COLOR, PALETTE,

2

, ALARM1, ALARM2, WATCH

1

, MAP ALIGN, ANCHOR WATCH, DROP

1

, NAV AIDS*1,

1

, CURSOR CENTER, DISPLAY MODE*1,

1

SEL, TRK INTVL, PLOTTER, EDIT TRACK, MARK SIZE, WAY­POINT MARK, OWN TRACK DISPLAY, TRK ROUTE CON­VERSION, GRID, ENLARGED CURSOR INFO, TRK TEMP
DATA DISP, TRK DEPTH DATA DISP, OTHER TRACK DIS-

1

[8 PICTURE]*

PLAY*

1

PICTURE1 through PICTURE12

*1: C-types only; *2: IMO-types only; *3: Used for SSD radars only;

4

: Used for magnetron radars only.

*

6. Repeat the procedure as necessary to set up other function keys.

7. Close the menu.

1.9 How to Customize Operation

Several operation items can be customized to suit
your needs.

1. Open the menu.

2. Select [9 INITIAL SETTING].

3. Select [5 OPERATION]. The [OPERATION]
menu appears.

4. Referring to the table below, press the menu
item number to select the appropriate menu item
to customize.

Menu items Description

Page 1
[2 MOUSE WHEEL

DIR]

[3 KEY BEEP] Changes the key beep volume.

Sets the direction of the wheel drive (scrollwheel).

• [NORMAL]: Scroll downwards to increase, or upwards
to decrease the value.

• [REVERSE]: Scroll directions are reverse of [NOR­MAL].

Select [OFF] to silence the key beeps. Select [LOW],
[MID], [HIGH] to adjust the volume for key beeps.

1-27

1. OPERATIONAL OVERVIEW

Menu items Description

[4 OWN SHIP VEC­TOR]

[5 STERN UP RM]*

[6 DISPLAY MODE]*

[6 SHUTTLE FERRY]*

Select how the own ship vector is displayed.

• [OFF]; Own ship vector is not displayed.

• [HDG]: Vector is displayed in heading direction.

• [COURSE]: Vector is displayed in course direction.

1

Select [ON] to show [STERN UP RM] orientation in the
selection cycle (see section 1.30).

1

Switch between [SIMPLE] and [NORMAL] display mode.
See section 1.4.1 for display examples.
Note: TT/AIS settings are not available in the simple dis­play. To change or adjust TT/AIS settings, make the
changes/adjustments at the standard display, then
switch to the simple display.

2

Sets the shuttle ferry mode to use.

• [OFF]: Shuttle ferry mode is deactivated.

• [MODE1]: Shuttle ferry mode is activated. See "Shuttle
ferry mode (IMO-types only)" on next page.

• [MODE2]: Shuttle ferry mode is activated. See "Shuttle
ferry mode (IMO-types only)" on next page.

Note: Shuttle ferry mode requires an external switch.

[7 ICING PREVEN­TION]

Select [ON] to rotate the antenna without transmission, to
prevent ice buildup. See section 1.54.

[8 HDG FINE ADJUST] Adjusts the heading line location. 0.0°, the default set-

ting, shows the heading line pointing towards the top of
the screen.

[9 USB MOUSE
SPEED]

Adjust the USB mouse sensitivity. A higher value in-

crease the mouse cursor’s movement speed.
Page 2
[2 AUTO COURSE UP

RESET]

Select [ON] to enable, or [OFF] to disable the automatic

reset of the screen when using COURSE UP orientation

and your course is more than 22.5° to either side the cen-

ter of the screen.
[3 DISPLAY
SCROLL]*

1

Select [ON] to enable, [OFF] to disable display scrolling.

When set to [ON], move the cursor to the edge of the

screen in the direction you want to scroll.
[4 CURSOR MENU
SELECT]*

1

Open the [CURSOR MENU SELECT] menu. You can

show/hide menu items which appear in the [CURSOR]

menu. Select [OFF] to hide, [ON] to show the menu item.

1-28

Menu items Description

[5 MODE KEY FUNC­TION]*

[6 TRAIL TIME LINK]*

1

Set the behavior of the [3 MODE] key.

• [ORIENTATION]: change the orientation mode with
each press.

• [CURSOR ON-OFF]: Show/hide the cursor with each
press.

1

• [NO LINK]: Trail time is not linked with changes in
range.

• [LINK RANGE]: Link [TRAIL TIME] with the range. As
the range changes, the trail time is also automatically
regulated to show a constant trail. When linked, the
trail time indication appears in yellow color.
Note 1: When using a range that is valid only when in
stand-by mode, the trail time is automatically adjusted
to match either the maximum or minimum range avail­able in transmit mode.
Note 2: Linking is only applied when [TRAIL TIME] is
set to [NORMAL] (see section 1.37.2).

1. OPERATIONAL OVERVIEW

[7 VECTOR TIME
LINK]*

1

• [NO LINK]: Vector time is not linked with changes in
range.

• [LINK RANGE]: Link vector time with the range. As the
range changes, the trail time is also automatically ad­justed. When linked, the vector time indication ap­pears in yellow color.
Note: When using a range that is valid only when
transmitting, the vector time is automatically adjusted
to match either the maximum or minimum available
range.

*1: For C-types only; *2: For IMO-types only.

5. Select the required setting by pressing the menu item number, or spinning the
scrollwheel.
Note: Regarding input for [8 HDG FINE ADJUST], when using the number keys,
the indication is first selected as a whole. At this time, you can toggle between plus
“+” or minus “-”. Press the 8 VECTOR MODE key for “-”, press the 2 EBL OFFSET
key for “+”. If single digits are highlighted, toggle is not possible. In this case, press
the CANCEL TRAILS key to re-highlight the whole indication.

6. Press the ENTER MARK key to confirm and apply the selection.

7. Close the menu.

Shuttle ferry mode (IMO-types only)

The shuttle ferry mode changes the orientation of the display when the external switch
is turned on. (The external switch should be connected to the RS-232C port on the
processor unit at installation.)

There are two variations: Standard display ([SHUTTLE FERRY] is set to [OFF]) and
reversed display ([SHUTTLE FERRY] is set to [MODE1] or [MODE2]).

When the display is reversed for shuttle ferry mode, the following changes also occur:

• Echoes are displayed 180° opposite to normal display.

• Bearing for speed data is re-calibrated to 180° opposite to normal.

• Wind direction based on speed input is re-calibrated to 180° opposite to normal.

1-29

1. OPERATIONAL OVERVIEW

Standard display: Gyro
input is displayed normally.

Reversed display: Gyro
input is displayed in reverse.

• Where [Mode2] is selected, data input from the gyrocompass is re-calibrated to
180° opposite to normal.

Note: Gyrocompass data input is not re-calibrated for [Mode1].

1.10 Heading Input

1.10.1 How to select the data source for heading input

When a gyrocompass is connected, the ship’s heading appears on the right side of the
screen, in the data display area.

Heading input format can be selected as follows:

1. Open the menu.

2. Select [7 INFORMATION BOX].

3. Select [2 OWN SHIP INFO].

4. Select [2 HDG]. The [HDG] menu appears.

Note: You can also access the HDG menu from
the on-screen box. Place the cursor on the
[HDG ] indication in the heading box at the
top-right of the screen, then right-click.

5. Select [2 HDG SOURCE], then press the EN-

TER MARK key.

6. Select [GYRO1] or [GYRO2] as appropriate, then press the ENTER MARK key.

7. Close the menu.

Note 1: The heading sensor must be able to follow a minimum ROT of 20° per second.
Heading sensors with a lesser capability may degrade the performance of echo aver­aging, trails and TT. The data refresh rate should also be as short as possible. If the
refresh rate is too long, the ability to follow courses lessens, thereby affecting the per­formance of echo averaging, trails and TT.

1.10.2 How to adjust for magnetic correction (C-types only)

1-30

Note 2: For IMO-types, Where the heading source is other than the heading sensor

(for example, and EPFS device), the sensor indication is displayed in yellow color.

To show true magnetic heading, magnetic data input is required. If your system con­figuration included a GPS navigator, the corrections required to display correct head­ing are done automatically. You can also set the magnetic correction manually with
the following procedure.

1. Open the menu.

1. OPERATIONAL OVERVIEW

2. Select [7 INFORMATION BOX].

3. Select [2 OWN SHIP INFO].

4. Select [2 HDG].

5. Select [3 MAGNETIC CORRECTION].

6. Select [MANUAL].

7. Enter the required correction value, then press the ENTER MARK key.
Note: To toggle between [E] (East) and [W] (West), spin the scrollwheel.

8. Close the menu.

1.11 How to Set Own Ship’s Speed

The TT and azimuth stabilized presentation modes require own ship speed input and
compass signal. The speed can be entered from a log (STW, SOG) or EPFS (SOG)
or manually on the menu.

1.11.1 Automatic speed input (log or EPFS navigator)

1. Open the menu.

2. Select [7 INFORMATION BOX].

3. Select [2 OWN SHIP INFO].

4. Select [3 SPEED]. The [SPEED] menu appears.
Note: You can also access the [SPEED] menu

from the on-screen box. Place the cursor on the
[SPD ] indication in the speed box at the top­right of the screen, then right-click.

5. Select [2 SHIP SPEED].

6. Select the appropriate source for automatic
speed input, then press the ENTER MARK key.

Note: Changes to the settings here are also applied to the speed calculations for
TT targets, true trails, SOG and STW.

Selection Explanation Stabilization Mode

1

[LOG (BT)]*
[LOG (WT)] Log, Speed Thru Water (STW) Sea stabilization
[EPFS] Speed input by GPS navigator Ground stabilization
[MANUAL] Manually input speed Sea stabilization
[REF] Echo-referenced speed input Ground stabilization

[ECDIS]*

Log, speed over ground (SOG) Ground stabilization

2

Speed input by ECDIS Ground stabilization or Sea

Stabilization (Dependent on
ECDIS settings).

1

Set and drift may be required to display [LOG (BT)] correctly in deep waters.

:

*

To change set and drift, see section 3.12.

2

Where [ECDIS] is selected as the speed source, [4 OWN SHIP POSN] in the

*

:

[OWN SHIP INFO] menu is automatically set to [ECDIS] also. See
section 1.12.

1-31

1. OPERATIONAL OVERVIEW

7. If you selected [MANUAL] as the speed data source, see section 1.11.2 to set the
speed.

8. Close the menu.

Notes on speed input

It should be noted that in determining a target's aspect by radar, the calculation of its
true track is dependent on the choice and accuracy of the own ship's course and
speed input. A ground-stabilized target plot may accurately calculate the ground track
of the target, but the target's heading may be significantly different from its track when
experiencing set, drift or leeway. Similarly, a sea stabilized target plot may be inaccu­rate when own ship and the target, are experiencing different rates of set, drift or lee­way.

• IMO Resolution A.823(19) for TT recommends that a speed log to be interfaced with

a TT should be capable of providing through-the-water speed (forward speed).

• Be sure not to select a [LOG] option when a speed log is not connected. If the log

signal is not provided, the ship speed readout at the top of the screen will be blank.
In the event of a log error, enter speed manually.

• When the speed source is set to [LOG(BT)] or [LOG(WT)], and no log signal is pres-

ent for 30 seconds, the [SPD] is shown as "*.* kn" and the label "NO LOG(BT) SIG­NAL" or "NO LOG(WT) SIGNAL" (in yellow-orange) appears and the alert buzzer
sounds.

• When the speed input in use is interrupted or lost, the system automatically chang-

es to another speed input (stabilization reference) and outputs the "SPD SOURCE
CHG" alert.

• On IMO-type radars with AIS in use, [MANUAL] and [REF] are shown in gray to in-

dicate they are not available for selection.

• A single-axis water log cannot measure speed when the wind is coming from the

leeway direction.

• When [ECDIS] is selected as the speed data source and communication with the

ECDIS is interrupted or lost for 30 seconds, the Alert "ECDIS COM ERROR" is re­leased.

• When speed stabilization is changed at the ECDIS and [ECDIS] is selected as the

speed data source, the Alert "SPD SOURCE CHG" is released.

1.11.2 Manual speed input

If the speed log is not working, enter speed manually as below. In this case the speed
data type is shown as "MANUAL" and is speed thru water (STW). Manual speed input
is not available on IMO-type radars when the AIS feature is active.

1-32

1. Open the menu.

2. Select [7 INFORMATION BOX].

3. Select [2 OWN SHIP INFO].

4. Select [3 SPEED].

5. Select [2 SHIP SPEED].

6. Select [MANUAL].

7. Select [3 MANUAL SPEED INPUT].

8. Spin the scrollwheel to set the speed.

9. Press the ENTER MARK key to confirm the new setting.

10. Close the menu.

1.12 Own Ship Position

1.12.1 How to set the Own Ship position

You can select the data source for own ship’s position as follows:

1. Open the menu.

2. Select [7 INFORMATION BOX].

3. Select [2 OWN SHIP INFO].

4. Select [4 OWN SHIP POSN].
Note: You can also access the [OWN SHIP
POSN] menu from the on-screen box. Place the

cursor on the [POSN ] indication in the position
box at the top-right of the screen, then right-click.

1. OPERATIONAL OVERVIEW

5. Select [2 POSITION SOURCE] or [3 MANUAL L/
L INPUT] as appropriate, then press the ENTER
MARK key.

6. If [2 POSITION SOURCE] is selected at step 2,
select the appropriate position source, referring to the list below, then press the
ENTER MARK key.
[2 POSITION SOURCE] uses navigational aids. Select the navigational aid to use.
Available options are listed with a brief description in the table below:

Available options Description

[EPFS1] Use the device assigned as EPFS1 for position data.
[EPFS2] Use the device assigned as EPFS2 for position data.
[LAN] Use the device connected to the LAN1 port for position

data.
[ECDIS] Use the connected ECDIS for position data.
[DEAD RECKONING] Position data is derived from dead reckoning (manual in-

put)

Note 1: When [2 POSITION SOURCE] is set to [DEAD RECKONING], the indica­tion "DR" appears at the bottom of the [OS POSN] box.

Note 2: When [2 POSITION SOURCE] is set to [DEAD RECKONING] or [MANU­AL L/L INPUT], the AIS function cannot be used.

Note 3: When [2 POSITION SOURCE] is set to [ECDIS], the source for own ship
speed data is automatically set to [ECDIS] also.

Note 4: On IMO-type radars with AIS in use, [DEAD RECKONING] is shown in
gray to indicate it is not available for selection.

Note 5: Speed and heading data is required in order to correctly display [DEAD
RECKONING] position data.

7. To set [3 MANUAL L/L INPUT], do the following:

1) Select [3 MANUAL L/L INPUT]. The first digit of the latitude is highlighted.

1-33

1. OPERATIONAL OVERVIEW

2) Spin the scrollwheel to set the value, then left-click. The cursor moves to the
next digit.
You can also use the number keys on the Control Unit to input the value.

3) Repeat step 2 to set the latitude and longitude.

8. To share [OS POSN] data across the same network, do the following:

1) Select [SIO DATA LAN OUTPUT], then press the ENTER MARK key.

2) Select [ON], then press the ENTER MARK key to share data. To disable [OS
POSN] data sharing, select [OFF], then press the ENTER MARK key.

Note: A navigational aid must be selected at [2 POSITION SOURCE] to share
[OS POSN] across the same network.

9. Close the menu.

1.12.2 How to set the display format for position data (C-types only)

You can set the display format for your position data with the following procedure.

You can set how this
data is displayed.

1. Open the menu.

2. Select [7 INFORMATION BOX].

3. Select [2 OWN SHIP INFO].

4. Select [4 OWN SHIP POSN].

5. Select [5 COORDINATE SYSTEM].

6. Select [LL] (Latitude/Longitude) or [LORAN•DECCA] as required.
See section 1.57 for details regarding LORAN•DECCA settings.

7. Close the menu.

1.12.3 How to select the datum to use for positioning (C-types only)

You can set the data used for navigation to match the datum used for your charts. If
you use different datums, the position (coordinates) indicated on-screen may be dif­ferent from those shown on your charts. You can change the datum with the following
procedure.

1. Open the menu.

2. Select [7 INFORMATION BOX].

3. Select [2 OWN SHIP INFO].

1-34

4. Select [4 OWN SHIP POSN].

5. Select [6 GEODETIC DATUM].

6. Select [WGS-84] or [TOKYO] as required.
Note: For configurations with an AIS transponder, select [WGS-84].

7. Close the menu.

1. OPERATIONAL OVERVIEW

19 / SEP / 2016

15 15

Date

Date/time indication
Left-click: Toggle [UTC]/[LOCAL] time.
Right-click: Open the [DATE] menu.

Time

1.13 Date and Time

1.13.1 How to switch between UTC and local date/time

Date and time are displayed at the top-right of the screen in the [DATE/TIME] box. You
can left-click the date/time indication to toggle between [UTC] format and [LOCAL] for­mat.

1.13.2 How to adjust the local time

You can adjust the local time and switch between UTC/local time from the menu.

To adjust the local time, follow the procedure below.

1. Open the menu.

2. Select [7 INFORMATION BOX].

3. Select [2 OWN SHIP INFO].

4. Select [5 DATE].

5. Select [2 DATE-TIME], then select [UTC] or [LO­CAL] as appropriate.

• [UTC]: Date and time are displayed in UTC for-

mat.

• [LOCAL]: Date and time are shown with the lo-

cal time offset applied.

6. Select [3 ADJUST LOCAL TIME], then press the ENTER MARK key.

Time indication highlighted as a whole.
Toggle between “+” and “-” is possible.

7. Spin the scrollwheel, or use the number keys to input the desired offset.
The offset must be in 30 minute increments.

Note: Regarding input for [3 ADJUST LOCAL TIME], when using the number
keys, the indication is first selected as a whole. At this time, you can toggle be­tween plus “+” or minus “-”. Press the 8 key for “-”, press the 2 key for “+”. If single
digits are highlighted, toggle is not possible. In this case, press the CANCEL
TRAILS key to re-highlight the whole indication.

Single digit is highlighted. Toggle
between “+” and “-” is not possible.

8. Close the menu.

1-35

1. OPERATIONAL OVERVIEW

1.13.3 How to change the date/time display format (C-types only)

You can change the manner in which time and date data is displayed.

1. Open the menu.

2. Select [7 INFORMATION BOX].

3. Select [2 OWN SHIP INFO].

4. Select [5 DATE].

5. Select [4 DATE], then select the required display format for the date.

• [DD/MMM/YYYY]: date appears as “04/JUL/2018”.

• [YYYY/MM/DD]: date appears as “2018/07/4”.

• [YYYY/MMM/DD]: date appears as “2018/JUL/04”.

• [MMM/DD/YYYY]: date appears as “JUL/04/2018”.

6. Select [5 TIME], then select the required display format for the time.

7. Close the menu.

1.14 User Settings (IMO-types only)

The user functions shown in the table below can be reset to their default settings by
enabling the [PILOT SETTING] option in the [USER SET] menu. Functions not shown
in the table below maintain their previous setting.

The unit can store two separate user settings, for the functions listed below, in the in­ternal memory. These settings can also be recalled. Functions not shown in the table
below cannot be stored or recalled.

Function Setting(s) Menu/On-screen box

GAIN Maintained as per

previous setting.
SEA [AUTO] [SEA] box
RAIN [AUTO] [RAIN] box
TUNE [AUTO] [TUNE] box

TX CH Maintained as per previous setting. (Solid State radars only)
Range [6 NM] [RANGE] box
Range rings [OFF] [MAIN MENU]  [NAV TOOLS] 

VRM1 Display [ON] [VRM1] box

Distance [0.250 NM]

VRM2 Display [OFF] [VRM2] box

Distance [0.000 NM]

EBL1 Display [ON] [EBL1] box

Bearing Maintained as per

previous setting.

Reference Maintained as per

previous setting.

[GAIN] box

(Magnetron radars only)

[RANGE RINGS]

[MAIN MENU]  [NAV TOOLS] 
[EBL•VRM•CURSOR SET]  [EBL•CUR­SOR BEARING]

1-36

1. OPERATIONAL OVERVIEW

Function Setting(s) Menu/On-screen box

EBL2 Display [OFF] [EBL2] box

Bearing Maintained as per
Reference [MAIN MENU]  [NAV TOOLS] 

PI Lines Display [OFF] [PI Line] box

Interval
Orientation
Bearing

(True or
Relative)

Number of
PI lines

Mode
(Parallel or
Perpendic-

ular)
Presentation Mode [NORTH UP TM] [PRESENTATION MODE] box
Stabilization mode

(Sea/Ground)
Off-centering On-centering OFF CENTER key.*
Target

trails

Past position [OFF] [PAST POSN] box
Vector mod [REL] [VECTOR] box
Vector time [6 MIN]
AZ1 [OFF] [AZ1] box
AZ2 [OFF] [AZ2] box
TT acquisition mode [MAN100] [TT TARGET]  [TT SELECT]
AIS display [DISP ALL] [AIS] box
Association [ON] (TT > AIS) [MAIN MENU]  [TT•AIS]  [TARGET

Lost Target Alert [OFF] (Disabled) LOST TARGET ALERT box
CPA/

TCPA
alarm

Display,

time

Mode [TRUE] [PAST POSN] box

ON/OFF [ON] [CPA LIMIT] box

CPA [2 NM]

TCPA [12 MIN]

previous setting.

[EBL•VRM•CURSOR SET]  [EBL•CUR­SOR BEARING]

Fixed to [TRUE]. -

[OFF] [MAIN MENU]  [NAV TOOLS]  [PI

LINES]  [SET MAXIMUM PI LINE]
[MAIN MENU]  [NAV TOOLS]  [PI

LINES]  [PI LINE MODE]

[EPFS] (Ground) [SPEED] box  [SHIP SPEED]

[ON], [6 MIN] [TRAIL MODE] box

ASSOCIATION]  [ASSOCIATION TGT
TYPE]

*: Has the same effect as selecting the True Motion presentation mode.

1-37

1. OPERATIONAL OVERVIEW

Select the [USER SET

]

box

, then right-click.

1.14.1 How to reset the user settings

1. Open the menu.

2. Select [9 INITIAL SETTINGS].

3. Select [4 USER SETTINGS].

4. Select [PILOT SETTING], then press the
ENTER MARK key.

5. Select [YES], then press the ENTER
MARK key.

6. Close the menu.

Note 1: Items not shown in the above table
keep their previous settings when [PILOT SET­TING] is activated.

Note 2: TT tracking is continued after [PILOT SETTING] is activated.
Note 3: The radar map displays the same map as before [PILOT SETTING] is activat-

ed.

1.14.2 How to save/load user settings

1. Open the menu.

2. Select [9 INITIAL SETTINGS].

3. Select [4 USER SETTINGS].

4. Select [USER1(2) LOAD] or [USER1(2) SAVE] to recall or save user settings, re­spectively, then press the ENTER MARK key.

5. Select [YES], then press the ENTER MARK key.

6. Close the menu.

When loading settings, the following points apply:

• If the newly loaded settings cannot be applied to items not listed in the table above,

then these items keep their previous settings.

• TT tracking is continued after the settings are loaded.

• The radar map displays the same map as before the settings were loaded.

1-38

1.15 How to Start/Stop Transmission

The radar is ready to transmit when the message "STBY" (C-types) or "RADAR STBY"
(IMO-types) appears in the operational display area. Transmission can be started us­ing one of the following procedures:

• Using the control unit: Press the STBY TX key.

1. OPERATIONAL OVERVIEW

• Using the on-screen box: Left-click the button on the InstantAccess bar

When the radar is switched to TX (transmit) status, most settings (such as brilliance,
range, pulse width, etc) are restored with the same settings as before standby.

For magnetron radars, it is recommended to place the radar in standby when trans­mission is not required, to reduce wear on the magnetron. You can also set a “blank
sector” where transmission is stopped (see the Installation Manual for details).

™

How to stop antenna rotation

Antenna rotation can be stopped using one of the following procedures:

• Turn the antenna switch off.

• Turn antenna rotation off from the menu (See installation manual).

Screen freeze

The screen is not refreshed if the screen has frozen. An audio alarm is released 30
seconds after a screen freeze. The ALARM ACK (RCU-014) or ALERT ACK (RCU-

031) key flashes and a contact alert signal is also released. To return the radar to nor­mal operation, turn the radar off, then on again.

Quick start

.

Provided that the radar was in use and the magnetron (transmitter tube) is still warm,
you can switch to transmit mode without the three minute warm-up time. If the radar
was turned off by mistake or you wish to restart the radar promptly, wait several sec­onds before you press the POWER switch.

1-39

1. OPERATIONAL OVERVIEW

Tuning
level
indication

Tuning method
Shown as “TUNE MAN”
or “TUNE AUTO”.

1.16 How to Tune the Receiver (Magnetron Radars Only)

Your magnetron radar has a tuning function (automatic or manual). For solid-state ra­dars, tuning is not available.

1.16.1 How to select the tuning method

1. Select the [TUNE] button, at the top of the InstantAccess bar™, to change the tun-

ing method. The tuning box is displayed as "TUNE AUTO" or "TUNE MAN", de­pending on the currently selected tuning method.

2. Left-click to toggle between automatic and manual tuning.

Note: The [Tune] button is grayed out and inoperable on FAR-2258 and FAR-2268DS
monitors which are assigned as [SUB] at installation.

1.16.2 How to initialize tuning

Automatic tuning is initialized at installation or after replacing the magnetron. Howev­er, if you feel that the automatic tuning is not functioning properly, re-initialize it by fol­lowing the procedure below.

Note: Automatic tuning is not available on FAR-2258 and FAR-2268DS monitors
which are assigned as [SUB] at installation.

1. Open the menu.

2. Select [2 ECHO], then press the ENTER MARK key.

1-40

3. Select [4 TUNING INITIALIZE], then press the ENTER MARK key.

The indication "TUNE INIT" appears in yellow characters at the top of the display
during the initialization.

4. Close the menu.

1.16.3 How to tune the receiver manually

1. Select the 48-mile range from the [RANGE] box. Left-click to lower the range;
right-click to raise the range.

2. Select manual tuning following the procedure in section 1.16.1.

3. Place the arrow on the tuning level indication.

4. Spin the scrollwheel to adjust tuning. The best tuning point is where the bar graph
swings maximum. The tuning control position is indicated with a triangle, dis­played inside the tuning bar.

1.17 How to Select a Pulselength

The pulselength in use is indicated on the [PULSE] button of the InstantAccess bar™,
at the top-left of the screen.

[

PULSE] button

PULSE

Current pulse length appears here.

L

1. OPERATIONAL OVERVIEW

Appropriate pulselengths are preset to individual range scales and function keys. If
you are not satisfied with the current pulselength settings, you can change them as
shown in the procedure below.

Note: The [Pulselength] button is not shown on FAR-2258 and FAR-2268DS monitors
which are assigned as [SUB] at installation; instead the button is replaced with the in­dication "SUB".

1.17.1 How to select a pulselength

The pulselength can be changed using the procedure below.

1. Place the cursor in the [PULSE] box at the top left corner of the screen.

2. Left-click to decrease, right-click to increase the pulselength; or spin the scroll­wheel to cycle through pulselengths.

Range Radar model (PULSE) indication

0.5 NM Other than FAR-2258 and FAR-2268DS S1, S2
FAR-2258 and FAR-2268DS S

0.75 NM Other than FAR-2258 and FAR-2268DS S1, S2, M1
FAR-2258 and FAR-2268DS S, M1

1.5 NM Other than FAR-2258 and FAR-2268DS S1, S2, M1, M2
FAR-2258 and FAR-2268DS S, M1

3 NM Other than FAR-2258 and FAR-2268DS S2, M1, M2, M3

FAR-2258 and FAR-2268DS S, M1, M2, L

6 NM/12 NM Other than FAR-2258 and FAR-2268DS M1, M2, M3, L

FAR-2258 and FAR-2268DS M1, M2, L

24 NM Other than FAR-2258 and FAR-2268DS M2, M3, L

FAR-2258 and FAR-2268DS M1, M2, L

1-41

1. OPERATIONAL OVERVIEW

200
MOB

MOB symbol

(C-types)

MOB symbol

(IMO-types)

Waypoint number

(fixed at 200)

1.17.2 How to change the preset pulselength

To change the preset pulselength for a range setting, follow the procedure below.

Note: Pulselength presets are not available from FAR-2258 and FAR-2268DS moni­tors which are assigned as [SUB] at installation.

1. Open the menu.

2. Select [1 ECHO].

3. Select [2 CUSTOMIZED ECHO].

4. Select [9 PULSE].

5. Select the desired range, then select the re­quired pulselength.
Note: The example figure to the right is taken
from a model other than the FAR-2258 and
FAR-2268DS. Available pulselengths for FAR­2258 and FAR-2268DS differ from those shown
in this example.

6. Close the menu.

1.18 MOB Mark

The MOB mark is used to mark the location where a man-over-board situation has oc­curred. The are two methods to enter a MOB, as listed below:

• Press the function key assigned with the [MOB] function. For how to assign func-

tions, see section 1.8.3.

• Left-click the [MOB] button on the InstantAccess bar

When a MOB mark is inserted, a MOB symbol is immediately inscribed at the own ship
location. You can only insert one MOB mark at a time. If a new MOB mark is inserted,
the old MOB mark is deleted.

For C-types, the following message appears when a MOB mark is inserted.

™

. (C-types only)

1-42

To navigate directly to the MOB, select [RUN]. A course line appears between your
vessel and the MOB symbol, on the screen. The line represents the shortest course
to the MOB and the arrows on the line indicate the direction of travel.

1. OPERATIONAL OVERVIEW

How to see the MOB pop-up data (C-types only)

Place the cursor on the MOB symbol to show the data pop-up
(see example figure to the right). The pop-up data shows the
MOB coordinates, ETA and range from own ship.

How to remove the MOB mark

You can remove the MOB mark with one of the following procedures.

• For C-types, do one of the following:

• Press and hold the function key assigned with the MOB function.

• Place the cursor on the MOB button on the InstantAccess bar

• For IMO-types, do the following:

1. Place the cursor inside the operational display area, then right-click. The [CUR­SOR] menu appears.

2. Select [MARK DELETE].

3. Select the MOB mark.

™

, then left-click.

4. Right-click the operational display area to complete the procedure.

1.19 How to Adjust Sensitivity

The gain control adjusts the sensitivity of the receiver.

The proper setting is such that the background noise is just visible on the screen. If
you set up for too little sensitivity, weak echoes may be missed. On the other hand
excessive sensitivity yields too much background noise; strong targets may be missed
because of the poor contrast between desired echoes and the background noise on
the display.

To adjust receiver sensitivity, adjust the gain control so background noise is just visible
on the screen.

How to adjust the GAIN from the control unit (RCU-014/RCU-031)

Rotate the GAIN knob. Rotate anticlockwise to decrease the gain, or clockwise to in­crease the gain.

How to adjust the GAIN from the on-screen box

1. Place the cursor in the [GAIN] box at the top of the screen.

40GAIN

2. Spin the scrollwheel to adjust the gain. The setting range is [0] to [100].

Place the cursor inside the gain
level indication, then spin the
scrollwheel.

1-43

1. OPERATIONAL OVERVIEW

20

SEA AUTO

Place the cursor inside the
level indication, then spin the
scrollwheel.

1.20 How to Reduce Sea Clutter

Echoes from waves cover the central part of the display with random signals known
as sea clutter. The higher the waves, and the higher the antenna above the water, the
further the clutter extends. When sea clutter masks the picture, reduce it with the A/C
SEA control, either manually or automatically.

Note 1: When both sea clutter and rain clutter are reduced, the sensitivity is de­creased more than when only one is changed. For that reason adjust them carefully.

Note 2: The echo average function (see section 1.24) is useful for reducing reflections
from the sea surface. However, high-speed targets are harder to detect than station­ary ones when echo average is active.

1.20.1 How to select the method of clutter adjustment

1. Place the cursor in the [SEA AUTO] or [SEA MAN] (whichever is shown) level in­dication at the top of the display.

Place the cursor on the [AUTO] or [MAN] indication, then left-click.

40SEA MAN

2. Left-click to display [SEA AUTO] or [SEA MAN] as appropriate.

Note: For RCU-031 users, you can also push the A/C SEA knob to toggle between
automatic and manual clutter reduction.

1.20.2 How to fine-tune sea clutter reduction

Auto A/C SEA allows for fine tuning of the A/C SEA circuit, within ±20 dB. Accordingly,
with the bar reading set to 50, gain is not lowered to minimum as with manual A/C SEA
on close-in ranges. Further, the auto A/C SEA level is low because the average value
of the original input echo is low in areas where there are no sea surface reflections.
For example, when the ship is alongside a quay and the radar picture shows echoes
from both land and sea, you can observe the size of the echoes because the STC
curve changes with the size of the echoes.

Note: The auto A/C function can erase weak target echoes. Adjust the control care­fully, watching the display.

How to fine-tune sea clutter reduction from the control unit (RCU-014/RCU-

031)

1-44

Rotate the AC/SEA knob. Rotate anticlockwise to decrease the AC/SEA, or clockwise
to increase the A/C SEA.

How to fine-tune sea clutter reduction from the on-screen box

1. Select [SEA AUTO], following the procedure in section 1.20.1.

2. Place the arrow on level indicator inside the A/C SEA box at the top of the display.

3. While observing the A/C SEA level indicator, spin the scrollwheel to adjust the
clutter reduction. The setting range is [-50] to [50].

1.20.3 How to manually reduce sea clutter

Sea clutter at
screen center

A/C SEA control adjusted;

sea clutter reduced

40SEA MAN

Place the cursor inside the
level indication, then spin the
scrollwheel.

Note: The proper setting of the A/C SEA should be such that the clutter is broken up
into small dots, and small targets become distinguishable. If the setting is set too low,
targets will be hidden in the clutter, while if the setting is too high, both sea clutter and
targets will disappear from the display. In most cases adjust the control until clutter has
disappeared to leeward, but a little is still visible windward. Be careful not to remove
all sea clutter, because you may erase weak echoes. Further, the possibility of losing
weak echoes is greater when you use both A/C SEA and A/C RAIN to reduce clutter.

How to reduce sea clutter manually from the control unit (RCU-014/RCU-031)

1. OPERATIONAL OVERVIEW

Rotate the AC/SEA knob. Rotate anticlockwise to decrease the AC/SEA, or clockwise
to increase the A/C SEA.

How to reduce sea clutter manually from the on-screen box

1. Select [SEA MAN], following the procedure in section 1.20.1.

2. Place the arrow on level indicator inside the A/C SEA box at the top of the display.

3. While observing the A/C SEA level indicator, spin the scrollwheel to adjust the
clutter reduction. The setting range is [0] to [100].

1.20.4 How to use the BERTHING STC function

The [BERTHING STC] function allows you to show the main bang echo, even with the
range set at 0.5 NM or less with AUTO SEA at maximum setting. This is particularly
useful when attempting to berth, as it gives a clearer view of the berthing area and your
ship’s location.

To use the [BERTHING STC] function, follow the procedure below.

1. Open the menu.

2. Select [1 ECHO].

3. Select [0 NEXT]. The second page of the
[ECHO] menu appears.

4. Select [5 BERTHING STC].

5. Select [ON] to activate, or [OFF] to deactivate,
this function.

1-45

1. OPERATIONAL OVERVIEW

40RAIN MAN

Place the cursor inside the
level indication, then left-click.

Place the cursor inside the
level indication, then spin the
scrollwheel.

RAIN AUTO

1.21 How to Reduce Rain Clutter

You can reduce clutter caused by rain, either automatically or manually.

Note 1: When both sea clutter and rain clutter are reduced, the sensitivity is de­creased more than when only one is changed. For that reason adjust them carefully.

Note 2: The echo average function (see section 1.24) is useful for reducing reflections
from the sea surface. However, high-speed targets are harder to detect than station­ary ones when echo average is active.

1.21.1 How to select the method of rain clutter reduction

1. Place the cursor in the [RAIN AUTO] or [RAIN MAN] (whichever is shown) level
indication at the top of the display.

2. Left-click to display [RAIN AUTO] or [RAIN MAN] as appropriate.
Note: For RCU-031 users, you can also push the A/C RAIN knob to toggle be­tween automatic and manual clutter reduction.

1.21.2 How to fine-tune rain clutter reduction

Auto A/C RAIN automatically reduces rain clutter. To fine-tune rain clutter reduction
while using auto A/C RAIN, do as follows:

Note: The auto A/C function can erase weak target echoes. Adjust the control care­fully, watching the display.

How to fine-tune rain clutter reduction from the control unit (RCU-014/RCU-

031)

Rotate the A/C RAIN knob. Rotate anticlockwise to decrease the A/C RAIN, or clock­wise to increase the A/C RAIN.

How to fine-tune rain clutter reduction from the on-screen box

1. Select [RAIN AUTO], following the procedure in section 1.21.1.

2. While observing the A/C RAIN level indicator, spin the scrollwheel to increase or
decrease the level. 100 levels (-50 to 50) are available.

1-46

1.21.3 How to manually reduce the rain clutter

40RAIN MAN

Place the cursor inside the
level indication, then spin the
scrollwheel.

The vertical beam width of the antenna is designed to see surface targets even when
the ship is rolling. However, by this design the unit will also detect rain clutter (rain,
snow, or hail) in the same manner as normal targets.

1. OPERATIONAL OVERVIEW

Rain clutter at
screen center

Note: The A/C RAIN control adjusts the receiver sensitivity as the A/C SEA control
does but rather in a longer time period (longer range). The higher the setting the great­er the anti-clutter effect. When echoes from precipitation mask solid targets, adjust the
A/C RAIN control to split up these unwanted echoes into a speckled pattern, making
recognition of solid targets easier. Be careful not to remove all rain clutter, because
you can erase weak echoes. Further, the possibility of losing weak echoes is greater
when you use both A/C RAIN and A/C SEA to reduce clutter.

A/C RAIN control adjusted;

rain clutter reduced

How to fine-tune rain clutter reduction from the control unit (RCU-014/RCU-

031)

Rotate the A/C RAIN knob. Rotate anticlockwise to decrease the A/C RAIN, or clock­wise to increase the A/C RAIN.

How to fine-tune rain clutter reduction from the on-screen box

1. Select [RAIN MAN], following the procedure in section 1.21.1.

2. While observing the A/C RAIN level indicator, spin the scrollwheel to increase or
decrease the level. 100 levels (0-100) are available.

Note: The detection range is reduced when the RAIN is used to show targets in rain.
Generally, the amount of rain, TX pulse length and TX frequency are factors in deter­mining how the detection range is affected. The figure below illustrates this.

1-47

1. OPERATIONAL OVERVIEW

Reduction of range of first detection (NM)

16 mm/h rain - short pulse
4 mm/h rain - short pulse
16 mm/h rain - long pulse
4 mm/h rain - long pulse

14

16

12

10

8

6

4

2

0

0 2 4 6 8 10 12 14 16

16

12

10

8

6

4

2

0

14

0 2 4 6 8 10 12 14 16

4 mm/h rain (short pulse)

16 mm/h rain (short pulse)

4 mm/h rain (long pulse)

16 mm/h rain (long pulse)

4 mm/h rain (short pulse)

16 mm/h rain (short pulse)

4 mm/h rain (long pulse)

16 mm/h rain (long pulse)

Original range of first detection (NM)

Original range of first detection (NM)

16 mm/h rain - short pulse
4 mm/h rain - short pulse
16 mm/h rain - long pulse
4 mm/h rain - long pulse

16 mm/h rain - short pulse
4 mm/h rain - short pulse
16 mm/h rain - long pulse
4 mm/h rain - long pulse

Reduction of rain to first detection due to rain at S-band

Reduction of rain to first detection due to rain at X-band

The author thanks the International Electrotechnical Commission (IEC) for permission to reproduce Information from its
Interantional Standard IEC 62388 ed.1.0 (2007). All such extracts are copyright of IEC, Geneva, Switzerland. All rights
reserved. Further information on the IEC is available from www.iec.ch. IEC has no responsibility for the placement and
context in which the extracts and contents are reproduced by the author, or is IC in any way responsible for the other content
or accuracy therein.

Reduction of Range of First Detection (NM)Reduction of Range of First Detection (NM)

How to interpret the graph

Using the graph below as an example, a radar target originally detected on the 8 NM
range can only be detected in rain at the ranges shown below:

Accordingly, the short pulse may be preferable in rain on ranges less than 10 NM.

1-48

1.22 Interference Rejector

TM

IR

OFF

Interference from radars
using the same frequency.

Interference from radars
using the same frequency.

Mutual radar interference can occur in the vicinity of an­other shipborne radar operating in the same frequency
band. It is seen on the screen as a number of bright
spikes either in irregular patterns or in the form of usu­ally curved spoke-like dotted lines extending from the
center to the edge of the picture. Activating the interfer­ence rejector circuit can reduce this type of interfer­ence. The interference rejector is a kind of signal
correlation circuit. It compares the received signals over
successive transmissions and reduces randomly occur­ring signals. There are three levels of interference rejection depending on the number
of transmissions that are correlated.

1. OPERATIONAL OVERVIEW

You can access this feature from the InstantAccess bar

™

, or from the menu. The avail-

able settings are: [OFF], [1], [2] or [3].

How to reject interference from the InstantAccess bar

To adjust the interference rejector, select the [IR] button ( ) on the InstantAc-

™

cess bar

, then left-click to cycle through the rejection levels.

The available settings, in cyclic order, are: [OFF]  [1]  [2]  [3]  [OFF]...

Level [3] provides the highest level of rejection.

How to reject interference from the menu

1. Open the menu.

2. Select [1 ECHO].

3. Select [2 CUSTOMIZED ECHO].
Note: You can also right-click the [PICTURE]

box to access this menu.

4. Select [2 INT REJECTOR].

5. Select the required setting.

6. Close the menu.

Note: When multiple radars using the same frequency
are nearby, interference may appear in a similar manner
to that shown in the figure to the right. If this kind of in­terference appears, do one of the following:

• Press the HL OFF key, or click the [HL OFF] button on

the InstantAccess bar™.

• Change the range.

1-49

1. OPERATIONAL OVERVIEW

TM

1.23 Echo Stretch

The echo stretch feature enlarges targets in the range and bearing directions to make
them easier to see, and it is available on any range. There are three types of echo
stretch, 1, 2 and 3, and the higher the number the greater the amount of stretch.

Note: The echo stretch magnifies not only small target pips but also returns (clutter)
from sea surface, rain and radar interference. For this reason, make sure these types
of interference have been sufficiently reduced before activating the echo stretch.

You can access this feature from the InstantAccess bar

™

, or from the menu. The avail-

able options are: [OFF], [1], [2] or [3].

How to use echo stretch from the InstantAccess bar

To set echo stretch, select the [ES] button ( ) on the InstantAccess bar™, then

ES

OFF

left-click to cycle through the settings.

The available settings, in cyclic order, are: [OFF]  [1]  [2]  [3]  [OFF]...

How to use echo stretch from the menu

1. Open the menu.

2. Select [1 ECHO].

3. Select [2 CUSTOMIZED ECHO].

4. Select [3 ECHO STRETCH].

5. Select the required setting for [ALL].
The higher the number the greater the amount of stretch.

6. Select the required setting for [NEAR] to adjust the effect level of the echo stretch
around own ship.
The higher the number the greater the amount of stretch. To disable echo stretch,
select [OFF].
The six enlarging patterns are shown in the table below. Distance 1 is short, dis­tance 2 and distance 3 are progressively longer, and distance 3 is about half the
display range.

Setting

(Effect level pattern)

[OFF] — — —

[1] Weak Weak —
[2] Weak Weak Weak
[3] Medium Weak —
[4] Medium Weak Weak
[5] Strong Medium Weak

Distance 1 Distance 2 Distance 3

7. Close the menu.

1-50

1.24 Echo Averaging

TM

EAV

OFF

The echo averaging feature effectively reduces sea clutter. Echoes received from sta­ble targets such as ships appear on the screen at almost the same position every ro­tation of the antenna. On the other hand, unstable echoes such as sea clutter appear
at random positions.

To distinguish real target echoes from sea clutter, echoes are averaged over succes­sive picture frames. If an echo is solid and stable over successive frames, it is present­ed in its normal intensity. Sea clutter is averaged over successive scans and its
brilliance reduced, making it easier to discriminate real targets from sea clutter.

Echo averaging uses a scan-to-scan signal correlation technique based on the true
motion over the ground of each target. Thus, small stationary targets such as buoys
will be shown while reducing random echoes such as sea clutter. However, true echo
averaging is not effective for picking up small targets running at high speeds over the
ground.

Note 1: With echo average active it is harder to detect high-speed targets than sta­tionary ones.

1. OPERATIONAL OVERVIEW

Note 2: Do not use the echo averaging function under heavy pitching and rolling; loss
of targets can result.

Note 3: Echo averaging requires heading, position and speed data.
Before using the echo averaging function, reduce sea clutter with the A/C SEA control.

Leave a little sea clutter on the screen so as not to erase weak targets. The available
settings options are shown in the table below.

Setting

(level)

[OFF] Echo averaging is not enabled
[1], [2] Detects targets hidden in sea clutter. [2] is more effective than [1] in detecting

targets hidden in strong sea clutter. However, [1] is more effective than [2] in
displaying high-speed targets. Select the setting best suited to current con­ditions. For effective monitoring of high-speed craft, you should use [2] to-

gether with the Wiper function.
[3] Stably displays unstable targets; distinguishes high-speed craft.
[4] Assists in distinguishing net floats better.

Description

Note: Setting level [4] is available for C-types only.

You can access this feature from the InstantAccess bar

™

, or from the menu.

How to adjust the echo average function from the InstantAccess bar

Select the [EAV] button ( ) on the InstantAccess bar™, then left-click to select

the desired level of echo averaging.

1-51

1. OPERATIONAL OVERVIEW

How to use the echo average function from the menu

1. Open the menu.

2. Select [1 ECHO].

3. Select [2 CUSTOMIZED ECHO].

4. Select [4 ECHO AVERAGE].

5. Select the required setting.

6. Close the menu.

How to highlight fast-moving targets

Normally, when echo averaging is in use, fast-moving targets may be displayed weak­ly, or not at all. The fast target emphasis function highlights fast-moving targets, but
can also highlight sea-surface reflections and other noise.

To use the fast target emphasis function, follow the procedure below.

1. Open the menu.

2. Select [1 ECHO].

3. Select [0 NEXT].

4. Select [5 EAV EMPH-FAST TGT].

5. Select [ON] or [OFF] as appropriate.

6. Close the menu.

1-52

1. OPERATIONAL OVERVIEW

TM

ACE

OFF

1 BACK
2 CONDITION
3 DEFAULT
NO/SAVE/USER/
FACTORY
4 ACE
OFF/ON
5 CUSTOMIZED ECHO NAME
CUSTOM 1

CUSTOMIZED ECHO (2/2)

30GAIN
30SEA
30RAIN

MAN
MAN

30GAIN
30SEA
30RAIN

MAN

ACE

MAN

ACE turned off. ACE turned on.

1.25 Automatic Clutter Elimination (ACE) Function

This radar has the Automatic Clutter Elimination (ACE) function. This function detects
sea and rain clutter from received echoes’ and automatically reduces sea and rain
clutter according to the Automatic Clutter Elimination (ACE) threshold setting.

Note: Use this function with caution. Weak target echoes may disappear from the
screen.

1.25.1 How to turn the Automatic Clutter Elimination (ACE) function on/off

You can activate/deactivate the ACE function with one of the two methods outlined be­low.

From the InstantAccess bar

Place the cursor on the [ACE] button ( ), then left-click to toggle between [ON]

and [OFF].

From the menu

1. Open the menu.

2. Select [1 ECHO].

3. Select [2 CUSTOMIZED ECHO].

4. Select [0 NEXT].

5. Select [5 ACE].

6. Select [ON] or [OFF] as appropriate, then press

the ENTER MARK key.

7. Close the menu.
When [ACE] is activated, the [SEA] box and [RAIN] box are gray colored and cannot

be adjusted, and the echo averaging function is disabled. The [GAIN] box changes to
[GAIN ACE], as shown in the figure below.

1.25.2 How to adjust the gain in Automatic Clutter Elimination (ACE)

Note: When [PERFORMANCE MON] (see section 1.50) or [SART] (see section 2.3)

is [ON], [ACE] is disabled and cannot be activated.

mode

Rotate the GAIN knob to adjust the sensitivity.

ACE can also be adjusted by placing the cursor inside the [GAIN ACE] level indication,
then spinning the scrollwheel.

1-53

1. OPERATIONAL OVERVIEW

1.25.3 How to get high sensitivity

When the ACE function is [ON], the high sensitivity mode is also available. High sen­sitivity mode has three levels ([1], [2], [3]), with [3] applying the highest gain.

To use high sensitivity mode, a function key must be assigned with the [ACE HIGH
SENSITIVITY] function (see section 1.8). To activate the ACE feature, press the as­signed function key.

You can select the level of sensitivity for high sensitivity mode as follows:

1. Open the menu.

2. Select [1 ECHO], then press the ENTER MARK key.

3. Select [0 NEXT].

4. Select [2 ACE], then press the ENTER MARK
key. The [ACE] menu appears.

5. Select [2 SIGNAL ENHANCEMENT], then press
the ENTER MARK key.

6. Select the level from [1], [2] or [3].

7. Close the menu.

1.25.4 How to suppress false echoes

When the ACE function is [ON], the echo signals can appear on the screen at posi­tions where there is no target or disappear when there are targets (see section 2.2).
You can suppress these false echoes.

Note: This procedure is only available when the Automatic Clutter Elimination (ACE)
function is [ON].

1. Open the menu.

2. Select [1 ECHO], then press the ENTER MARK key.

3. Select [0 NEXT].

4. Select [2 ACE], then press the ENTER MARK key.

5. Select [3 SUPPRESS SECTOR], then press the ENTER MARK key.

6. Spin the scrollwheel, or use the number keys, to set the start angle for sector sup­pression.
If you use the number keys, the cursor moves from left to right. When all three dig­its are input, the cursor moves to the ANGLE item.
If you use the scrollwheel, left-click when the start angle is set.
To cancel any changes, press the ENTER MARK key.

1-54

7. Left-click, or press the ENTER MARK key to confirm the start angle. The cursor
moves to the [ANGLE] item.

8. Spin the scrollwheel, or use the number keys, set the angle range of the sector to
be suppressed.
If you use the number keys, the cursor moves from left to right. When all three dig­its are input, the setting process is complete.
If you use the scrollwheel, left-click when the angle range is set.
To cancel any changes, press the ENTER MARK key.

9. Close the menu.

1.26 Noise Rejector

White noise can show itself on the screen as random “speckles” spread over the entire
radar image. This equipment reduces the white noise, then improves the on-screen S/
N ratio by processing the weighted moving average filter for the received echoes in
the range direction.

Note: Use this function with caution. Weak target echoes may disappear from the
screen or the range resolution may worsen.

To remove this noise do the following:

1. Open the menu.

2. Select [1 ECHO].

1. OPERATIONAL OVERVIEW

3. Select [2 CUSTOMIZED ECHO].

4. Select [7 NOISE REJECTOR].

5. Select [OFF] or [ON] as appropriate, then press the ENTER MARK key. The indi­cation for noise rejection is located at the top-left of the screen.
The indication changes according to the selected setting.

6. Close the menu.

1.27 Wiper

The wiper feature automatically reduces the brilliance of weak signals (noise, sea clut­ter, rain clutter, etc.) and unwanted signals such as radar interference to clear the pic­ture of unwanted echoes. Its effect depends on the wiper setting used and whether
each averaging is turned on or off, as described below.

Echo averaging [OFF] Condition A Condition A
Echo averaging on([1] through [4]) Condition A Condition B

Condition A: The brilliance of unwanted weak echoes, such as noise, sea clutter and
rain clutter, is reduced to clear up the picture.
Condition B: Echo averaging is automatically activated when the wiper feature is
turned on, allowing you to instantly see how the picture is affected with echo averaging
turned off and turned on.
Note 1: The [WIPER] function is not available when [TRUE VIEW] (located on page 2
of the [ECHO] menu) is set to [ON].

Note 2: The [WIPER] function requires valid data input for position, speed and heading.
Note 3:

activated (at installation). For details of the high speed rotation mode, contact your
dealer.

Noise Rejector
indication

Wiper setting 1 Wiper setting 2

The [WIPER] function is unavailable when the high speed rotation mode is

To activate the wiper feature, do the following:

1. Open the menu.

2. Select [1 ECHO].

3. Select [9 WIPER].

4. Select the desired setting.
The options are: [OFF], [1] or [2].

5. Close the menu.

1-55

1. OPERATIONAL OVERVIEW

1.28 How to Preset Controls for a Specific Navigation Purpose

Every time your navigating environment or task changes, you must adjust the radar,
which can be a nuisance in a busy situation. Instead of changing radar settings case
by case, it is possible to assign the function keys to provide optimum settings for often­encountered situations.

The radar's internal computer offers several picture preset options to be assigned to
each function key for your specific navigating requirements. For instance, one of the
presets is [ROUGH SEA], and is designed to be used in heavy rain.

Three user-programmable presets are also provided (labeled as [CUSTOM1], [CUS­TOM2] and [CUSTOM3]), so that you can have the radar automatically set to those
conditions which are not covered by the provided setup options.

Below are the preset options provided with this radar.

Preset Description

[CUSTOM1], [CUSTOM2]
and [CUSTOM3]

[NEAR] Optimum setting for short range detection using a range

[FAR] Optimum setting for long range detection, on a range

[NEAR BUOY] Optimum setting for detecting buoys within 3 NM range.
[FAR BUOY] Optimum setting for detecting buoys on a range scale of

[ROUGH SEA] Optimum setting for rough weather or heavy rain.
[SHIP] Optimum setting for detecting other vessels.
[HARBOR] Optimum setting for harbor berthing.
[BIRD] Optimum setting for detecting birds.
[COAST] Optimum setting for coastal travel.

User-defined custom settings.

scale of 3 NM or less on calm seas.

scale of 6 NM or larger.

6 NM or larger.

Note: For C-types, you can change the name of the presets (see section 1.28.5). This
section uses the default names for all procedures and examples.

Each picture option defines a combination of several radar settings for achieving op­timum setup for a particular navigating situation. These include gain, target analyzer,
hatching, ACE, ACE gain, interference rejector, echo stretch, echo average, noise re­jector, automatic anti-sea and anti-rain clutter, video contrast, near STC range/curve,
pulse length and sea and radar conditions.

Changing these features from the [CUSTOMIZED ECHO] menu changes the original
function key settings. To restore the original settings for a particular customize option,
it is necessary to select the default setting. For this reason, we recommended that you
use the user-programmable presets ([CUSTOM1], [CUSTOM2] or [CUSTOM3]) when
frequent adjustment of the radar image is necessary.

The default settings for the custom presets are listed on the following pages.

1-56

1. OPERATIONAL OVERVIEW

Default settings - models other than FAR-2258 and FAR-2268DS

GAIN

AUTO

SEA

AUTO

RAIN

ACE

ACE

GAIN

IR

ALL NEAR

ES

EA

TARGET

ANALYZER

*1

CUSTOM1 85 MAN-30 MAN-0 OFF 50 1 1 OFF 1 OFF
CUSTOM2 85 AUTO-30 MAN-0 OFF 50 1 1 OFF 1 OFF
CUSTOM3 85 MAN-30 MAN-0 ON 50 1 1 OFF 1 OFF
NEAR 85 MAN-30 MAN-0 OFF 50 1 1 OFF 1 OFF
FAR 85 AUTO-40 MAN-0 ON 60 1 2 OFF 1 OFF
NEAR

BOUY

85 MAN-30 MAN-0 OFF 50 1 1 OFF 2 OFF

FAR BUOY 85 AUTO-30 MAN-0 OFF 50 1 2 OFF 2 OFF
ROUGH

SEA

85 MAN-50 MAN-40 OFF 35 1 OFF OFF 2 OFF

SHIP 85 MAN-30 MAN-0 ON 50 1 2 OFF 1 OFF
HARBOR 75 MAN-30 MAN-0 ON 50 1 OFF OFF 1 OFF
BIRD 85 MAN-30 MAN-0 OFF 50 1 OFF OFF 1 OFF
COAST 85 MAN-30 MAN-0 OFF 50 1 OFF OFF OFF OFF

HATCHING

*1

NR

VIDEO

CONTRAST

STC

CURVE

CUSTOM1 OFF OFF 2-B 3

CUSTOM2 OFF OFF 2-D 3

CUSTOM3 OFF OFF 2-B 3

NEAR OFF OFF 1-B 3

FAR OFF OFF 6-B 3

NEAR
BOUY

OFF OFF 1-D 3

FAR BUOY OFF OFF 4-D 3

ROUGH
SEA

OFF OFF 2-D 3

SHIP OFF OFF 2-B 3

HARBOR OFF OFF 1-D 3

BIRD OFF OFF 3-D 3

COAST OFF OFF 2-D 3

STC

RANGE

[NM]*2

5.0

(1.7)

5.0

(1.7)

5.0

(1.7)

5.0

(1.7)

5.0

(1.7)

5.0

(1.7)

5.0

(1.7)

6.0

(1.9)

5.0

(1.7)

5.0

(1.7)

5.0

(1.7)

5.0

(1.7)

LOW

LEVEL

ECHOES

NEAR

STC

CURVE

NEAR

RANGE

03.52.0

03.52.0

03.52.0

03.52.0

03.52.0

03.52.0

03.52.0

03.53.0

03.52.0

03.52.0

03.52.0

03.52.0

STC

*1

: Available for C-type radars only.

*2

: The value in the bracket is for FAR-238S/238S-NXT radars.

1-57

1. OPERATIONAL OVERVIEW

Default settings - FAR-2258/2268DS

GAIN

CUSTOM1 90 MAN-50 MAN-0 OFF 50 2 2 OFF 1 OFF
CUSTOM2 80 MAN-40 MAN-0 ON 50 2 2 OFF 1 OFF
CUSTOM3 90 MAN-45 MAN-60 OFF 50 2 2 OFF 1 OFF
NEAR 90 AUTO-±0 MAN-30 OFF 50 2 OFF OFF 1 OFF
FAR 90 MAN-50 MAN-0 OFF 50 2 2 OFF 1 OFF
NEAR

BOUY
FAR BUOY 80 MAN-40 MAN-0 ON 50 1 3 OFF 1 OFF
ROUGH

SEA
SHIP 85 MAN-50 MAN-40 OFF 50 2 2 OFF 1 OFF
HARBOR 85 MAN-40 MAN-30 OFF 50 2 OFF OFF 1 OFF
BIRD 90 MAN-40 MAN-25 OFF 50 1 1 OFF 4 OFF
COAST 85 AUTO-±0 AUTO-±0 OFF 50 2 OFF OFF 1 OFF

CUSTOM1 OFF OFF 3-B 3.0 5.0 0 4.5 1.0
CUSTOM2 OFF OFF 3-B 3.0 5.0 0 4.5 1.0
CUSTOM3 OFF OFF 3-B 3.0 5.0 0 4.5 1.7
NEAR OFF OFF 3-B 3.0 5.0 0 3.0 1.0
FAR OFF OFF 4-B 3.0 5.0 0 4.5 1.7
NEAR

BOUY
FAR BUOY OFF OFF 3-B 3.0 5.0 0 3.0 1.7
ROUGH

SEA
SHIP OFF OFF 2-B 3.0 5.0 0 3.0 1.7
HARBOR OFF OFF 2-A 3.0 5.0 0 3.0 1.0
BIRD OFF OFF 7-A 3.0 5.0 0 4.5 1.7
COAST OFF OFF 2-B 3.0 5.0 0 4.5 1.7

90 AUTO-±0 MAN-0 OFF 50 1 OFF OFF 1 OFF

85 MAN-50 MAN-60 OFF 50 2 OFF OFF 2 OFF

HATCHING* NR

AUTO

SEA

OFF OFF 3-B 3.0 5.0 0 4.5 1.7

OFF OFF 2-B 3.0 6.0 0 4.5 1.7

AUTO

RAIN

VIDEO

CONTRAST

ACE

ACE

GAIN

STC

CURVE

IR

STC

RANGE

[NM]

ES

ALL NEAR

LOW

LEVEL

ECHOES

EAV

NEAR

STC

CURVE

TARGET

ANALYZER

NEAR

STC

RANGE

*

1-58

*: Available for C-type radars only.

1. OPERATIONAL OVERVIEW

Default settings for [PULSELENGTH] - models other than FAR-2258 and
FAR-2268DS

0.125 NM
to 0.5 NM

CUSTOM1 S1 S1 S1 S2 S2 M1
CUSTOM2 S1 S1 S1 S2 S2 M1
CUSTOM3 S1 S1 S1 S2 S2 M1
NEAR S1 S1 S1 S2 S2 M1
FAR S1 S1 S1 S2 S2 M1
NEAR BOUY S1 S1 S1 S2 S2 M1
FAR BUOY S1 S1 S1 S2 S2 M1
ROUGH SEA S1 S1 S1 S2 S2 M1
SHIP S1 S1 S1 S2 S2 M1
HARBOR S1 S1 S1 S2 S2 M1
BIRD S1 S1 S2 S2 M1 M1
COAST S1 S1 S1 S2 S2 M1

4 NM* 6 NM 8 NM* 12 NM 16 NM* 24 NM

CUSTOM1 M1 M2 M2 L L L
CUSTOM2 M1 M2 M2 L L L
CUSTOM3 M1 M2 M2 L L L
NEAR M1 M2 M2 M3 M3 L
FAR M1 M3 M3 L L L
NEAR BOUY M1 M2 M2 M3 M3 L
FAR BUOY M1 M3 M3 L L L
ROUGH SEA M1 M2 M2 M3 M3 L
SHIP M1 M2 M2 L M3 L
HARBOR M1 M2 M2 M3 M3 L
BIRD M1 M2 M2 M3 L L
COAST M1 M2 M2 M3 M3 L

0.75 NM 1 NM* 1.5 NM 2 NM* 3 NM

*: Available for C-types only.

1-59

1. OPERATIONAL OVERVIEW

Default settings for [PULSELENGTH] - FAR-2258

0.125 NM
to 0.5 NM

CUSTOM1 S S S M1 M1 M2
CUSTOM2 S S S M1 M1 M2
CUSTOM3 S S S M1 M1 M2
NEAR S S S M1 M1 M1
FAR S S S M1 M1 M2
NEAR BOUY S M1 M1 M1 M1 M1
FAR BUOY S S S M1 M1 M1
ROUGH SEA S S S M1 M1 M1
SHIP S S S M1 M1 M1
HARBOR S S S M1 M1 M1
BIRD S S S M1 M1 M1
COAST S S S M1 M1 M2

4 NM* 6 NM 8 NM* 12 NM 16 NM* 24 NM

CUSTOM1 M2 L L L L L
CUSTOM2 M2 L L L L L
CUSTOM3 M2 L L L L L
NEAR M1 M2 M2 L L L
FAR M1 M1 M1 L L L
NEAR BOUY M2 L L L L L
FAR BUOY M1 M1 M1 L L L
ROUGH SEA M1 M1 M1 L L L
SHIP M1 M2 M2 L L L
HARBOR M1 M1 M1 L L L
BIRD M1 M2 M2 L L L
COAST M2 M2 M2 L L L

0.75 NM 1 NM* 1.5 NM 2 NM* 3 NM

*: Available for C-types only.

1-60

1. OPERATIONAL OVERVIEW

Default settings for [PULSELENGTH] - FAR-2268DS

0.125 NM
to 0.5 NM

CUSTOM1 S S S M1 M1 M2
CUSTOM2 S S S M1 M1 M2
CUSTOM3 S S S M1 M1 M2
NEAR S S S M1 M1 M2
FAR S S S M1 M1 M2
NEAR BOUY S S S M1 M1 M2
FAR BUOY S S S M1 M1 M2
ROUGH SEA S S S M1 M1 M2
SHIP S S S M1 M1 M2
HARBOR S S S M1 M1 M2
BIRD S S S M1 M1 M2
COAST S S S M1 M1 M2

4 NM* 6 NM 8 NM* 12 NM 16 NM* 24 NM

CUSTOM1 M2 L L L L L
CUSTOM2 M2 L L L L L
CUSTOM3 M2 L L L L L
NEAR M2 L L L L L
FAR M2 L L L L L
NEAR BOUY M2 L L L L L
FAR BUOY M2 L L L L L
ROUGH SEA M2 L L L L L
SHIP M2 L L L L L
HARBOR M2 L L L L L
BIRD M2 L L L L L
COAST M2 L L L L L

0.75 NM 1 NM* 1.5 NM 2 NM* 3 NM

*: Available for C-types only.

1.28.1 How to select a customized echo

Left-click the [CUSTOMIZE ECHO] box at the top left of the screen to cycle through
the options and select a customized echo option.

The available options depend on the settings selected for [3 SELECT CUSTOM] in the
[ECHO] menu. See section 1.28.5.

Note: For C-types, if the customization is linked with a range (see section 1.28.7), the
indication appears in yellow color.

1-61

1. OPERATIONAL OVERVIEW

Receiving

level

Receiving

level

Receiving

level

Receiving

level

Receiving

level

A

B

D

C

11

Display level

88

Display level Display level

Display level

Display level

1.28.2 How to edit a customized echo

1. Select a customize echo option to edit (see section 1.28.1).

2. Open the menu.

3. Select [1 ECHO].

4. Select [2 CUSTOMIZED ECHO].

5. Set the items below referring to the sections shown.

• [2 INT REJECTOR] : section 1.22

• [3 ECHO STRETCH] : section 1.23

• [4 ECHO AVERAGE] : section 1.24

• [5 TARGET ANALYZER]* : section 1.38

• [6 HATCHING]* : section 1.38

• [7 NOISE REJECTOR] : section 1.26

• [8 VIDEO CONTRAST TYPE] : section 1.28.2

• [9 PULSE] : section 1.17

• [2 CONDITION] : section 1.28.2

• [4 ACE] : section 1.25
*: Available for C-type radars only.

Note: To set [2 CONDITION] and [4 ACE], select [0 NEXT] to show the second
page of the [CUSTOMIZED ECHO] menu.

6. Select [8 VIDEO CONTRAST TYPE], then press the ENTER MARK key.

7. Select [1], [2], [3] or [4] (Dynamic Range) or [A], [B], [C] (Curve) as appropriate

then press the ENTER MARK key. Video contrast and curve change depending
on setting for [VIDEO CONTRAST] (set at installation), as shown in the figure be­low.

• [1] to [8]: Control dynamic range. [1] provides the widest dynamic range; [8] is
the narrowest dynamic range.

• [A]: Low level echo brilliance is reduced and noise and clutter are also reduced.

• [B]: Low and high level echoes are displayed evenly.

• [C]: Low level echo brilliance is increased and small objects (including noise)
are emphasized.

8. Select [0 NEXT] to show the next menu page.

9. Select [2 CONDITION].

10. Select [2 STC CURVE].

1-62

• [D]: High level echoes' outer edge has gradation to indicate the echo level, with
the higher level echo at the core.

The [CONDITION] menu adjusts the STC curve settings. When you adjust the set­tings, deactivate the echo average function to make it easy to see the change in
echoes.

1. OPERATIONAL OVERVIEW

Inclination:

2.0

11. Select the appropriate setting for the current sea conditions, then press the EN­TER MARK key.

The default value is “3.0”. Rotate the [A/C SEA] knob and check that the sea clut­ter farther away than 1 NM is reduced evenly. If the long-range sea clutter is not
eliminated, decrease the setting value. If the short-range sea clutter is not elimi­nated, increase the setting value.

12. Select [3 STC RANGE [NM]].

13. Set the distance for STC effectiveness, then press the ENTER MARK key.
Decrease the value gradually from the high setting value. The proper setting is
such that the distant sea clutter is just visible. The sea clutter changes according
to the sea conditions. Select the value considering the change of the sea condi­tions. For example, when you adjust the value in the calm sea and the proper set­ting is “3.0 NM”, set the value to “4.0 NM” to save the adjustment operation when
the sea conditions change to rough sea.

14. Select [5 NEAR STC RANGE].

15. Select the range to which you want to apply the [NEAR STC CURVE] settings.
If the close-range sea clutter cannot be eliminated by adjusting the sea clutter, set
the range where the sea clutter remains. The [NEAR STC CURVE] settings is ap­plied to the range set here.

16. Select [5 NEAR STC CURVE].

17. Select the appropriate setting for close-range sea conditions.
The higher the setting the more the close-range sea clutter is removed.

Inclination = NEAR STC RANGE

Inclination: 9.0

Inclination:

2.0

Attenuation of signal

NEAR STC RANGE

Range from own ship (logarithms)

Inclination = STC RANGE (2 to 4.2)

Inclination: 2.0

Inclination: 4.0

STC RANGE [NM]

18. If necessary, select [4 LOW LEVEL ECHO] to reject low level echoes. The higher
the figure, the stronger the low level echo that is erased.

19. Select [1 BACK] to show the second page of the [CUSTOMIZED ECHO] menu.

20. To save custom settings, select [SAVE] from [3 DEFAULT].
Note: For C-types, when customized settings are not saved, the “save” floppy disc

icon appears. You can click the icon to save the customized settings.

“Save” floppy disc icon

21. Close the menu.

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1. OPERATIONAL OVERVIEW

Page 1 Page 2

1.28.3 How to restore a user customized echo to the saved settings

If you get lost in operation while changing the settings for a user customized echo, you
can easily restore the settings for that user customized echo saved at section 1.28.2.

1. Open the menu.

2. Select [1 ECHO].

3. Select [2 CUSTOMIZED ECHO].

4. Select [0 NEXT] to show the next menu page.

5. Select [3 DEFAULT].

6. Select [USER].

7. Close the menu.

1.28.4 How to restore a user customized echo to the factory default settings

You can restore customized echo options to their factory default settings (see the ta­bles on page 1-57 for a list of the default settings).

1. Open the menu.

2. Select [1 ECHO].

3. Select [2 CUSTOMIZED ECHO].

4. Select [0 NEXT] to show the next menu page.

5. Select [3 DEFAULT].

6. Select [FACTORY], then press the ENTER MARK key.

7. Close the menu.

1.28.5 How to edit the available customized echoes

To edit which customizations are available from the [CUSTOMIZE ECHO] box, follow
the procedure below.

1. Open the menu.

2. Select [1 ECHO].

3. Select [0 NEXT].

4. Select [3 SELECT CUSTOM]. The [SELECT CUSTOM] menu appears.

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1. OPERATIONAL OVERVIEW

Currently selected customized
echo name appears here.

5. Select the customization you want to edit.
The customizations are listed over two menu pages. Select [0 NEXT] to see the
next page, or select [1 BACK] to return to the previous menu page.

6. Select [ON] to make the customization available from the [CUSTOMIZE ECHO]
box, or select [OFF] to hide the customization from the [CUSTOMIZE ECHO] box.
Note: The factory default setting for all items in this menu is [ON].

7. Close the menu.

1.28.6 How to change the name of a customization (C-types only)

1. Open the menu.

2. Select [1 ECHO].

3. Select [2 CUSTOMIZED ECHO].

4. Select [0 NEXT] to show the next menu page.

5. Select [5 CUSTOMIZED ECHO NAME]. The software keyboard window appears.

6. Referring to section 1.5.3, change the name of the customization.

7. Close the menu.

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1. OPERATIONAL OVERVIEW

1.28.7 How to link the customization with a range (C-types only)

You can set link your customized presets with a specified range to save time. Linked
settings are changeable and are also applied if the range is changed while in stand­by mode.

To link customized settings with a range, do the following:

1. Open the menu.

2. Select [1 ECHO].

3. Select [0 NEXT].

4. Select [8 CUSTOM LINK].

5. Select [LINK RANGE].

6. Select [SET CUSTOM LINK]. Linked customizations appear next to their linked
range in the [SET CUSTOM LINK] menu. The default setting for all ranges is
[CUSTOM 1].

Linked customization
appears here

• [0.5]: links the customization to 0.5NM/SM/km/kyd range or lower

• [0.75]: links the customization to ranges between 0.75 and 1NM/SM/km/kyd

• [1.5]: links the customization to ranges between 0.175 and 1NM/SM/km/kyd

• [3]: links the customization to ranges between 3 and 4NM/SM/km/kyd

• [6]: links the customization to ranges between 6 and 8NM/SM/km/kyd

• [12]: links the customization to ranges between 12 and 16NM/SM/km/kyd

• [24]: links the customization to 24NM/SM/km/kyd range or higher

7. Select the range you want to link a customization to. The available options appear.

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Note: If the name of a customization is changed (see section 1.28.6), the custom

name appears instead of the default.

8. Select the customization you want to link to the selected range.

9. Repeat steps 7 and 8 to link other ranges and customizations.

10. Close the menu.

1. OPERATIONAL OVERVIEW

1.29 How to Reject Second-trace Echoes

In certain situations, echoes from very distance targets can appear as false echoes
(second-trace echoes) on the screen. This occurs when the return echo is received
one transmission cycle later, or after a next radar pulse has been transmitted.

Pulse
interval

Actual ranges

Second-trace
echo

Measured ranges

This equipment lengthens the pulse repetition period to reject false echoes.

Note 1: This function decreases the number of echo hits. Use this function carefully
so that the possibility of detecting small targets and high-speed craft does not lessen.

Note 2: This function is not available on FAR-2258 and FAR-2268DS monitors which
are assigned as [SUB] at installation.

To reject second trace echoes, do the following:

1. Open the menu.

2. Select [1 ECHO].

3. Select [3 2ND ECHO REJ].

4. Select [ON], then press the ENTER MARK key. Select [OFF] to disable rejection.

5. Close the menu.

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1. OPERATIONAL OVERVIEW

Heading line

North marker

1.30 Orientation Modes

This radar has the following orientation modes available:

Mode Description

Relative Motion (RM) modes

[HEAD UP RM] Not stabilized
[STERN UP RM]* The radar image is rotated 180°. Graphics and relative and

true bearings are also rotated 180°.

[STAB HEAD UP RM] Head-up with compass bearing scale (True Bearing) where

the bearing scale rotates with the compass reading.

[COURSE UP RM] Compass-stabilized relative to ship’s orientation at the time of

selecting COURSE UP.

[NORTH UP RM] Compass-stabilized with reference to North.

True Motion (TM ) modes

[NORTH UP TM] Land objects and sea are stationary. Requires compass and

speed data.

*: [STERN UP RM] is only available for C-types.

1.30.1 How to select an presentation mode

Select the [ORIENTATION MODE] box at the top left
corner of the screen, then left-click to cycle through
the available orientation modes.

Loss of gyrocompass signal

When the compass signal is lost, "NO GYRO SIGNAL" appears in yellow-orange in
the [ALERT] box, the orientation mode automatically becomes HEAD UP, and TT and
AIS targets, map and chart are erased. Stop the alert with the ALARM ACK (RCU-

014) or ALERT ACK (RCU-031) key or left-click the [ALERT] box. Check the GYRO

data.

1.30.2 Description of presentation modes

HEAD UP mode

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.

Note: For C-types, you can make the following adjust­ment in the menu to show smoother echoes when
turning at high speeds. However, with this adjustment,
the [WIPER] and [ZOOM] functions are disabled. Set [TRUE VIEW] to [ON] on the
second page of the [ECHO] menu.

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COURSE UP mode

1. OPERATIONAL OVERVIEW

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.

STAB HEAD UP mode

North marker

North marker

Heading line

Heading line

Radar echoes are shown in the same way as in the HEAD UP mode. The difference
from normal HEAD UP presentation lies in the orientation of the bearing scale. The
bearing scale is heading sensor stabilized. That is, it rotates in accordance with the
heading sensor signal, enabling you to know own ship's heading at a glance.

This mode is available when the radar is interfaced with a gyrocompass. If the gyro­compass fails, the bearing scale returns to the state of HEAD UP mode.

True motion mode

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 50% of the radius of the display, the position is reset. The
ship appears at 75% radius opposite to the extension of the current course. You can
manually reset your ship symbol if you press the 5 CU/TM RESET key.

Heading
line

(a) True motion
is selected

North
marker

(b) Your ship has reached a
point 50% of display radius

(c) Your ship is automatically
reset to 75% of display radius

Note: The position of the own ship marker and bearing scale change according to ref­erence position and off-centering.

• ANT: When OFF CENTER is active, the bearing scale intervals change accordingly.

• CCRP: When the CCRP moves outside the operational display area, the bearing
scale intervals may not be displayed correctly.

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1. OPERATIONAL OVERVIEW

Heading line

North marker

RANGE box

STERN UP mode

The STERN UP mode rotates the HEAD UP
mode picture, relative and true bearings and
display graphics 180°. This mode is useful on
dual-radar tugboats when backing up; one ra­dar shows HEAD UP and another shows
STERN UP. To enable the STERN UP mode,
turn on [STERN UP] on the [OPERATION]
menu.

Note: STERN UP mode is only available for
C-types.

1.31 How to Select a Range Scale

The selected range scale and range ring interval are shown at the upper left corner on
the screen. When a target of interest comes closer, reduce the range scale so that it
appears in 50-90% of the display radius.

1. Place the cursor in the [RANGE] box at the top left corner of the screen.

In the above example, the range scale is set to 0.125 NM and the interval between
range rings is set to 0.025 NM.

2. Left-click to lower the range; right-click to raise the range.
You can also select the range with the RANGE key on the control unit (not available

for RCU-015/RCU-016). Press "+" to increase the range, or press "-" to reduce the
range. Press and hold a key to successively change the range upwards or down­wards.

Changing the plotter range (C-types only)

With the radar in standby (STBY) mode, you can change the plotter range by pressing
the RANGE key. In this case, “range” means the on-screen displayed distance from
the left-hand edge of the screen to the right-hand edge of the screen.

“+”: expands the range scale with the cursor location as the center.

“-”: reduces the range scale with the cursor location as the center.

Press and hold the + or - key to change the range scale continuously.

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1.32 How to Measure Range

000

010

020

030

040

050

060

070

080

090

100

110

120

130

140

150

160

170

180

190

200

210

220

230

240

250

260

270

280

290

300

310

320

330

340

350

VRM1

VRM2

Target echo

The range to a target can be measured three ways: with the fixed range rings, with the
cursor, or with the VRM.

Use the fixed range rings to get an estimate of the range to a target. The rings are the
concentric solid circles on the display. The number of rings is automatically set by the
current range scale. The distance between the rings is the range ring interval, and the
current interval appears at the upper-left position on the screen. To measure the range
to a target with the range rings, count the number of rings between the center of the
display and the target. Check the range ring interval and estimate the distance of the
echo from the inner edge of the nearest ring.

1.32.1 How to show/hide the range rings

1. Open the menu.

2. For IMO-types, select [3 NAV TOOLS] to show the [NAV TOOLS] menu.

For C-types, select [3 CURSOR•EBL•VRM] to show the [CURSOR•EBL•VRM]
menu.

1. OPERATIONAL OVERVIEW

3. For IMO-types, select [4 RANGE RINGS].

For C-types, select [6 RANGE RINGS].

4. Depending on your radar type, select the appropriate setting.

For IMO-types:
For C-types

Select [ON] or [OFF] as appropriate.

: Select the appropriate setting, referring to the following list.

• [OFF]: Hide the range rings.

• [STD]: Range rings increase/decrease in number, according to the selected radar
range.

• [MANUAL]: Set a number of range rings that are not linked with the radar range.

5. Close the menu.

1.32.2 How to measure range with the variable range marker (VRM)

There are two VRMs, No. 1 and No. 2, which appear as dashed rings so that you can
distinguish them from the fixed range rings. The two VRMs can be distinguished from
each other by the different lengths of their dashes; the dashes on the No. 2 VRM are
longer.

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1. OPERATIONAL OVERVIEW

There are two methods for measuring range with the VRMs, using the VRM key and
on-screen menu box operation.

Range to VRM

Note: You can hide the [TTG] indication.

See section 1.32.5.

Using the VRM keys on the control unit (RCU-014/RCU-031)

1. Press the VRM ON key to activate the VRM1 box. Press the VRM ON key again
to activate the VRM2 box. Press the VRM ON key again to switch between active
VRMs. The currently active VRM marker is displayed as shown in the above fig­ure.

2. Rotate the VRM knob to align the active VRM with the inner edge of the target,
then read the distance at the lower right of the screen. In the above figure, the ac­tive VRM reads "36.44 NM".
Each VRM remains at the same geographical distance when you operate the
RANGE key or the [RANGE] box. This means that the apparent radius of the VRM
ring changes in proportion to the selected range scale.

VRM1 VRM2

28.11 36.44

TTG

NM

50:00 60:00

TTG

TTG to VRM

NM

Currently active
VRM is highlighted.

3. Press the VRM OFF key to hide the VRMs.

On-screen menu box operation

1. Select the appropriate [VRM] box.

2. The guidance box reads "VRM ON/".
Left-click to turn on the VRM.
The guidance box now reads "VRM SET L = DELETE /".
Further, the box is highlighted and the corresponding VRM appears.

3. Left-click again and the cursor jumps to inside the operational display area. The
guidance box now reads "VRM FIX L = DELETE / EXIT".

4. Move the trackball to adjust the VRM.
Note: The maximum VRM distance is set by the current display range and can be
set as high as twice the distance of the display range.

5. Left-click to anchor the VRM and fix its readout, or right-click to cancel and return
the VRM to its previous location (range).

6. To hide the VRM, left-click the [VRM] box to show "VRM SET L = DELETE /" in
the guidance box, then press and hold the left button on the trackball.

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