Furuno FR-8111, FR-8251 User Manual

5 (1)

MARINE RADAR

MODEL FR-8051/8111/8251

9-52 Ashihara-cho,

Nishinomiya 662-8580, JAPAN

Telephone :

0798-65-2111

Fax

:

0798-65-4200

All rights reserved.

Printed in Japan

Pub. No. OME-34240

( AKMU ) FR-8051/8111/8251

The paper used in this manual is elemental chlorine free.

FURUNO Authorized Distributor/Dealer

FIRST EDITION :NOV. 1995

G3 : MAY. 07, 2005

*00080735211*

*00080735211*

* 0 0 0 8 0 7 3 5 2 1 1 *

*OME34240G30*

*OME34240G30*

* O M E 3 4 2 4 0 G 3 0 *

SAFETY INFORMATION

"DANGER", "WARNING" and "CAUTION" notices appear throughout this manual. It is the responsibility of the operator of the equipment to read, understand and follow these notices. If you have any questions regarding these safety instructions, please contact a FURUNO agent or dealer.

DANGER

WARNING

CAUTION

This notice indicates a potentially hazardous situation which, if not avoided, will result in death or serious injury.

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

This notice indicates an unsafe practice which, if not avoided, could result in minor or moderate injury, or property damage.

i

DANGER

This equipment uses high voltage electricity which can shock, burn or cause death.

Only qualified personnel should work inside the enclosures.

Do not diassemble or modify the equipment.

Fire, electrical shock or serious injury can result.

DANGER

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.

Serious injury or death can result if the radiator starts rotating and strikes someone near the scanner unit.

Wear a safety belt and hard hat when working on the antenna unit.

Serious injury or death can result if someone falls from the scanner mast.

ii

WARNING

Radio Frequency Radation Hazard

The radar antenna emits electromagnetic radio frequency (RF) energy which can be harmful, particularly to your eyes. Never look directly into the antenna aperture from a close distance while the radar is in operation or expose yourself to the transmitting antenna at a close distance.

Distances at which RF radiation levels of 100 and 10 W/m

exist are given in the table below.

 

 

 

 

 

 

 

 

 

 

 

Distance to

 

Distance to

RF power

 

Model

Radiator type

 

density on

 

 

100 W point

 

10 W point

 

 

 

 

 

antenna aperture

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XN2 (4')

Nil

 

Nil

 

 

 

 

 

 

 

 

 

 

 

FR-8051

XN3 (6.5')

Nil

 

Nil

Not measured

 

 

(X-band, 6 kW)

XN3A (6.5')

Nil

 

Nil

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XN4A (8')

Nil

 

Nil

 

 

 

 

 

 

 

 

 

 

 

 

XN2 (4')

 

 

 

11.0 W/m2

 

 

FR-8111

XN3 (6.5')

Worst case

 

Worst case

9.6 W/m2

 

 

(X-band, 10 kW)

XN3A (6.5')

0.25 m*

 

2.3 m*

9.6 W/m2

 

 

 

XN4A (8')

 

 

 

6.7 W/m2

 

 

 

XN2 (4')

 

 

 

29.0 W/m2

 

 

FR-8251

XN3 (6.5')

Worst case

 

Worst case

23.8 W/m2

 

 

(X-band, 25 kW)

XN3A (6.5')

0.6 m*

 

3.25 m*

23.8 W/m2

 

 

 

XN4A (8')

 

 

 

20.6 W/m2

 

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 pos- sible—Ask your FURUNO representative or dealer to provide this feature.

* UK DRA measured on FR-2810/2820. Other values by FURUNO.

iii

WARNING

Turn off the power at the mains switchboard if metallic object or liquid falls into the equipment.

Continued use can result in electrical shock or fire.

Use the correct fuse.

Use of the wrong fuse can cause fire or electrical shock.

Ensure no water splash or rain leaks into the equipment.

Water in the equipment can result in fire or electrical shock.

Turn off the power at the mains switchboard if the unit is emitting smoke or fire.

Continued use can result in fire or electrical shock.

Do not place liquid-filled containers on the top of the equipment.

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

Keep heaters away from the equipment.

Heat can melt the power cord, which can result in fire or electrical shock.

CAUTION

Immediately turn off the power whenever you feel the equipment is abnormal.

Continued use can cause equipment damage.

Keep magnets and magnetic fields (speaker, transformer, etc.) way from the equipment.

Magnets and magnetic fields can cause equipment malfunction.

iv

COMPLIANCE WITH R&TTE DIRECTIVE 1999/5/EC

This radar complies with the R&TTE Directive 1999/5/EC. In accordance with Article 6-3 of this directive, FURUNO intends to put this radar on the market of the following countries in EU as well other markets.

Austria, Belgium, Cyprus, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Slovenia, Spain, Sweden, The Netherlands, United Kingdom, Iceland, Norway

v

 

TABLE OF CONTENTS

 

 

SAFETY INFORMATION ...................................................................................................................

i

FOREWORD .....................................................................................................................................

vii

CONFIGURATION OF FR-8051/8111/8251 .....................................................................................

ix

SPECIFICATIONS ..............................................................................................................................

x

EQUIPMENT LISTS ........................................................................................................................

xii

CATEGORIZATION BY SPECIFICATION ...................................................................................

xiv

Chapter 1 OPERATION

 

Control Description .........................................................................................................................

1-1

Display Indications ..........................................................................................................................

1-2

1.1 Turning the Radar On/Off ..........................................................................................................

1-4

1.2 Transmitting, Stand-by ..............................................................................................................

1-4

1.3 Selecting Range .........................................................................................................................

1-4

1.4 Presentation Mode .....................................................................................................................

1-5

1.5 Menu Overview .........................................................................................................................

1-7

1.6 Tuning the Receiver .................................................................................................................

1-10

1.7 Adjusting Sensitivity ................................................................................................................

1-10

1.8 Adjusting Picture Brilliance .....................................................................................................

1-10

1.9 Adjusting Brilliance of Control Panel and Markers ..................................................................

1-11

1.10 Adjusting Range Ring Brilliance ............................................................................................

1-11

1.11 Suppressing Sea Clutter ..........................................................................................................

1-11

1.12

Suppressing Rain Clutter .......................................................................................................

1-12

1.13 The Heading and North Markers ...........................................................................................

1-12

1.14

Measuring the Range .............................................................................................................

1-12

1.15

Measuring Bearing ................................................................................................................

1-13

1.16

Collision Assessment by the Offset EBL ...............................................................................

1-14

1.17

Measuring Range and Bearing Between Two Targets ...........................................................

1-14

1.18

Index Lines ............................................................................................................................

1-15

1.19

Off-centering the Picture .......................................................................................................

1-15

1.20 Zoom ......................................................................................................................................

1-16

1.21

Inscribing Marks on the Display ............................................................................................

1-16

1.22 The FUNCTION key .............................................................................................................

1-16

1.23

Own Ship Speed ....................................................................................................................

1-17

1.24

Ship’s Graphic .......................................................................................................................

1-18

1.25

Interference Rejector .............................................................................................................

1-18

1.26

Echo Trails .............................................................................................................................

1-18

1.27

Electronic Plotting (E-plot) ....................................................................................................

1-20

1.28

Setting a Guard Alarm Zone ..................................................................................................

1-22

1.29 Watch Alarm ..........................................................................................................................

1-23

1.30

Echo Average .........................................................................................................................

1-23

1.31

Suppressing Second-Trace Echoes ........................................................................................

1-24

1.32

Echo Stretch ...........................................................................................................................

1-25

1.33

Noise Rejection ......................................................................................................................

1-25

1.34

Selecting Pulselength .............................................................................................................

1-25

1.35 Waypoint Display ..................................................................................................................

1-26

v

1.36 Outputting Cursor Position (TLL data) .................................................................................

1-26

1.37

Selecting Unit of Range Measurement, Bearing Reference ..................................................

1-27

1.38

Sector Blanking .....................................................................................................................

1-27

1.39 Alarm Output Signal On/Off .................................................................................................

1-27

Chapter 2 RADAR OBSERVATION

2.1

Radar Picture, Target Properties and Radar Pulse .....................................................................

2-1

2.2

Range Resolution .......................................................................................................................

2-1

2.3

Bearing Resolution ....................................................................................................................

2-2

2.4

False Echoes ..............................................................................................................................

2-2

2.5 Minimum and Maximum Ranges ..............................................................................................

2-3

2.6

Locating a Ship or Survival Craft in Distress by SART ............................................................

2-4

Chapter 3 MAINTENANCE

3.1

Periodic Maintenance Schedule .................................................................................................

3-1

3.2

Life Expectancy of Major Parts .................................................................................................

3-2

Chapter 4 TROUBLESHOOTING

4.1

Simple Troubleshooting .............................................................................................................

4-1

4.2 Advanced-level Troubleshooting ...............................................................................................

4-2

4.3

Diagnostic Test ..........................................................................................................................

4-5

Chapter 5 LOCATION OF PARTS

5.1 Antenna Unit ..............................................................................................................................

5-1

5.2

RF Transceiver Unit ...................................................................................................................

5-2

5.3

Display Unit (common to all models) .......................................................................................

5-4

Appendix A DESCRIPTION OF OPTIONAL EQUIPMENT

A.1

Performance Monitor ................................................................................................................

A-1

A.2 Auto Plotter ARP-15 .................................................................................................................

A-2

A.3 Video Plotter RP-15 ..................................................................................................................

A-2

A.4

Fluxgate Heading Sensor C-2000 .............................................................................................

A-2

Declaration of Conformity

vi

FOREWORD

Features

A Word to FR-8051/8111/8251 Owners

FURUNO Electric Company thanks you for purchasing the FR-8051/8111/8251 Marine Radar. We are confident you will discover why the FURUNO name has become synonymous with quality and reliability.

For over 40 years FURUNO Electric Company has enjoyed an enviable reputation for quality and reliability throughout the world. This dedication to excellence is furthered by our extensive global network of agents and dealers.

Your radar is designed and constructed to meet the rigorous demands of the marine environment. However, no machine can perform its intended function unless properly installed and maintained. Please carefully read and follow the operation and maintenance procedures set forth in this manual.

We would appreciate feedback from you, the end-user, about whether we are achieving our purposes.

Thank you for considering and purchasing FURUNO.

The FR-8051/8111/8251 has a large variety of functions, all contained in a rugged case.

All controls respond immediately to the operator’s command and each time a key is pressed, the corresponding change can be seen on the screen immediately.

High definition 12-inch raster-scan display.

Precision slotted waveguide antenna capable of withstanding 100 knot wind ve-

locity.

Eight levels of target quantization for high target definition.

On-screen alphanumeric readout of all operational information including ship’s po-

sition and speed.

Unique function key automatically sets up for optimum performance with environments and targets.

Automatic suppression of sea and rain clutter.

Echo trails to assess targets’ speeds and courses.

Presentation modes: Head-up, Course-up, North-up and True Motion.

Aural alarm alerts when targets enter (or exit) an area.

Floating EBL provides measurements of range and bearing between two targets.

Electronic target plotting.

Waypoint data from external navigator.

Dual VRMs and EBLs.

vii

CONFIGURATION OF FR-8051/8111/8251

Performance Monitor

 

Antenna Unit

 

 

PM-30

 

 

 

 

 

 

(optional)

 

 

 

 

Switch Box

 

 

 

 

 

 

15 m standard

 

 

115/230 VAC

 

Display Unit

 

 

 

RDP-112

 

 

 

 

 

NAV

IEC 1162*

(In/Out)

 

Remote Display

IEC 1162*

(In)

Video Plotter

FMD-8010

 

 

Video Plotter

Video Sounder

 

RP-15

Log

 

 

GD-500

Fluxgate Heading

 

 

 

 

 

 

 

Sensor C-2000

 

Auto Plotter

External Alarm

 

Gyro Converter

 

Gyro

 

ARP-15

Buzzer OP03-21

AD-100

 

 

 

 

 

 

*Equivalent to NMEA0183

 

 

Rectifier

 

 

RU-1746B-2

**12 V/24-32 VDC for FR-8051/8111

 

 

 

15 m

 

 

24-32 VDC for FR-8251

 

 

 

Option

 

12/24-32 VDC**

115/230 VAC

 

 

 

ix

SPECIFICATIONS

Antenna Unit

Type

 

 

 

Slotted waveguide array

 

 

 

 

 

 

 

 

Polarization

 

Horizontal

 

 

 

 

 

 

 

 

 

 

 

Length

 

 

 

4 ft(XN2)

6.5 ft(XN3)

6.5 ft (XN3A)

8 ft(XN4A)

Beamwidth

 

1.8 x 25°

1.2 x 25°

1.23 x 20°

0.9 x 20°

Rotation speed

 

24 rpm (36 rpm optional)

 

 

 

 

 

 

 

 

Transceiver Module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Frequency

 

9410 MHz ± 30 MHz (X-band)

 

 

 

 

Peak output power

 

FR8051: 6 kW

 

 

 

 

 

 

 

 

 

 

 

 

FR8111: 10 kW

 

 

 

 

 

 

 

 

 

 

 

 

FR8251: 25 kW

 

 

 

 

 

 

 

 

Transmitting tube

 

FR8051: MAF1422B

 

 

 

 

 

 

 

 

 

 

 

 

FR8111: MAF1425B

 

 

 

 

 

 

 

 

 

 

 

 

FR8251: 9M752 or M5187F

 

 

 

 

Pulselength (PL) & Pulse Repetition Rate (PRR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Range (nautical miles)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PL

PRR

 

0.125

0.25

0.5

 

0.75

1.5

 

3

6

12

24

 

48

72

96

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SP

2100Hz

 

 

0.08 microseconds

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MP1

2100Hz

 

 

 

 

 

0.3 microseconds

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MP2

1200Hz

 

 

 

 

 

 

 

 

0.6 microseconds

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LP

600Hz*

 

 

 

 

 

 

 

 

 

 

1.2 microseconds

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* 500 Hz on 72, 96 nm range

500 Hz when 2nd trace echo rejection is off (MP1, MP2, LP only)

Modulator

FR-8051/8111: FET switching method

 

FR-8251: Line Pulse

I/F amplifier

Logarithmic, IF 60 MHz

 

Bandwidth: 25MHz (0.08 s), 2.5 MHz (0.3 s, 0.6 s, 1.2 s)

Tuning

Automatic or manual

Receiver front end

MIC (Microwave IC)

Duplexer

Circulator with diode limiter

x

Display Unit

Picture tube

 

12-inch rectangular green phosphor CRT, 640(H) x 481(V) dots

 

 

Effective display diameter 180 mm

 

 

 

 

 

 

Range (nm), Range ring interval (nm), Number of range rings

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Range (nm)

0.125

0.25

 

0.5

0.75

1.5

3

 

6

 

12

24

48

72

 

96

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ring intvl (nm)

0.025

0.05

 

0.1

0.25

0.25

0.5

 

1

 

4

4

8

12

 

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No. of rings

5

5

 

5

3

3

6

 

6

 

6

6

6

6

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

† Can be set to 1, 2, 4, 8, 16 or 32 nm when interfaced with video plotter.

 

 

 

 

 

* Maximum ranges: FR-8051, 48 nm; FR-8111, 72 nm, FR-8251, 96 nm

 

 

 

 

 

Minimum range

 

25 m on 0.25 nm scale

 

 

 

 

 

 

 

 

 

 

Range discrimination

20 m on 0.75 nm scale

 

 

 

 

 

 

 

 

 

 

Accuracy

 

Range: 1% of range in use or 8 m, whichever is the greater

 

 

 

Bearing: 1°

 

 

 

 

 

 

 

 

 

 

 

Environmental Conditions

 

 

 

 

 

 

 

 

 

 

 

 

 

Standards

 

IEC 945

 

 

 

 

 

 

 

 

 

 

 

 

Ambient temperature

Antenna unit: -25°C to +70°C

 

 

 

 

 

 

 

 

 

 

Display unit: -15°C to +55°C

 

 

 

 

 

 

 

 

Humidity

 

Relative humidity 95% at +40°C

 

 

 

 

 

 

Waterproof test

 

Pressure 3.6 kg/cm2 (antenna unit)

 

 

 

 

 

 

Power Supply and Power Consumption

12 V(FR-8051/8111), 24 V, 32 VDC, or

100 V, 110 V, 115 V, 220 V, 230 VAC, 50/60 Hz, 1ø (rectifier required) FR-8051, 75 W; FR-8111, 90 W; FR-8251, 130 W

Others

Nav Data Input/Output Input (IEC 1162*) - - GP, LC, or any talker

BWC, DTP, GLL, GLC, HDG, MDA, RMA, RMB, RMC, VTG, DBK, DBS, DBT, GTD, HDM, HDT, MTW, BWR, VHW, ZDA

AD-100 format heading data

Output (IEC 1162) TLL, RSD, and TTM (w/ARP *:IEC 1162 is equivalent to NMEA0183, V2.0

Coating color

Antenna unit: Munsell N9.5 (white)

 

 

 

Display unit housing: 2.5GY5/1.5 (light gray)

 

 

Panel: N3.0 (black)

 

 

Compass safe distance

Standard compass

Steering compass

 

Display unit (RDP-112):

1.3 m

1.0 m

 

Antenna unit (C2P7N2N, 6 kW):

3.4 m

2.2 m

 

(C2P7N2N, 10 kW):

3.8 m

2.4 m

 

(RSB-0014, 25 kW):

4.3 m

2.5 m

xi

EQUIPMENT LISTS

Standard Set

No.

Name

Type

Qty

Remarks

 

 

 

 

 

1

Scanner unit (FR-8051)

C2P7N2N(RSB-0063)

1

24 rpm (36 rpm optional)

 

 

 

 

RF unit: RTR-0043

 

 

 

 

 

 

Scanner unit (FR-8111)

C2P7N2N(RSB-0063)

 

24 rpm (36 rpm optional)

 

 

 

 

RF unit: RTR-0044

 

 

 

 

 

 

Scanner unit (FR-8251)

RSB-0014(RSB-0064)

 

24 rpm (36 rpm optional)

 

 

 

 

RF unit: RTR-0045

 

 

 

 

 

2

Display unit

RDP-112-*

1

* A, FR-8051; B, FR-8111;

 

 

 

 

C, FR-8251

 

 

 

 

 

3

Accessories

FP03-05310

1 set

Viewing hood and filter

 

 

 

 

 

4

Display unit

CP03-15101

1 set

For display unit

 

installation materials

 

 

 

 

 

 

 

 

5

Scanner unit

CP03-14401

1 set

For antenna unit

 

installation materials

 

 

 

 

 

 

 

 

6

Signal cable

S03-53-†

1 set

† : 15 m (20, 25, 30 m

 

 

 

 

optional)

 

 

 

 

 

 

ML connector assy

CP03-14202

 

For high voltage line

 

 

 

 

 

7

Display unit spare parts

SP03-11901

1 set

 

 

 

 

 

 

8

Scanner unit spare parts

SP03-11102

1 set

 

 

 

 

 

 

xii

Optional Equipment

No.

Name

Type

Code No.

Remarks

 

 

 

 

 

1

Signal cable

S03-55-5

008-455-160

w/XH-5P connector, 5 m

 

 

 

 

CO-2P cable

 

 

 

 

 

2

Interswitch unit

RJ-2

000-030-062

 

 

 

 

 

 

3

Rectifier unit

RU-1746B-2

000-030-439

115 VAC

 

 

 

 

 

 

 

 

000-030-440

230 VAC

 

 

 

 

 

4

Power cable

CVV-S 8 x 2C 15m

000-560-634

 

 

 

 

 

 

5

Color display

CD-140

000-000-507

 

 

 

 

 

 

 

 

CD-141

000-000-508

 

 

 

 

 

 

6

Slave display

FMD-8010

 

 

 

 

 

 

 

7

Remote display

FMD-1800

 

 

 

 

 

 

 

8

Video plotter

GD-500/500 Mark 2

 

 

 

 

 

 

 

9

External buzzer

OP03-21

000-030-097

 

 

 

 

 

 

10

Vinyl cover

03-034-0401

000-801-657

 

 

 

 

 

 

11

Auto plotter

ARP-15

 

 

 

 

 

 

 

12

Video plotter

RP-15

 

 

 

 

 

 

 

13

EMI filter

FP03-05500

008-456-990

 

 

 

 

 

 

14

Hood w/lens

OP03-120

000-030-097

 

 

 

 

 

 

15

Performance

PM-30

 

 

 

monitor

 

 

 

 

 

 

 

 

16

Gyro converter

AD-100

 

 

 

 

 

 

 

Spare Parts

No.

Name

Type

Code No.

Qty

Remarks

 

 

 

 

 

 

 

1

Fuse

FGBO 10 A 125 VAC

000-549-065

2

24

V/32 V

 

 

 

 

 

 

 

2

Fuse

FGBO 20 A 125 VAC

000-549-015

2

12

V

 

 

 

 

 

 

 

3

Carbon brush for

MG120-5X6X11 D8G

000-631-716

2

 

 

 

scanner motor

 

 

 

 

 

 

 

 

 

 

 

 

xiii

CATEGORIZATION BY SPECIFICATION

This series of marine radars are designed to comply with the standards of various national rules and regulations. Operational convenience is enhanced with the two categories as below although the basic design approach is the same.

Function

R-type

N-type

 

 

 

Guard zone alarm

"In" or "Out" alarm

"In" alarm only

 

 

 

VRM/cursor unit of

nm, km, sm

nm only

readout

 

 

 

 

 

EBL/cursor bearing

True/relative, selectable

Head-up: relative

readout

in any mode

CU, NU, TM: true

 

 

 

Own ship mark

Available (symbol or dot)

Not available (dot only)

 

 

 

R-type: For fishing boats, pleasure boats, non-Convention cargo ships

N-type: For non-Convention ships in the Netherlands and other countries where the radars must be approved based on IMO A.477(XII), although not wholly.

xiv

Chapter 1

OPERATION

Control Description

GAIN

 

 

POWER

Turns power on.

HM OFF (PUSH)

Press together to turn

OFF

power off.

A/C SEA

Toggles between

ST BY

TX

stand-by and transmit.

A/C AUTO (PUSH)

 

 

A/C RAIN

Presentation mode

MODE

 

MARK (PUSH)

 

BRILL

Sets up radar for

FUNCTION

required objective.

 

 

RINGS (PUSH)

Silences aural alarms (except guard alarm).

Short press: Offcenter

Long press: Zoom-in

Each press processes index lines; linked with EBL2/VRM2 / fixed / OFF.

Turns an EBL off.

 

RANGE

AUDIO

GUARD

OFF

ALARM

SHIFT

ECHO

ZOOM

TRAIL

INDEX

CURSOR

LINE

OFFSET

OFF

ON

 

EBL 1/2

 

Turns a VRM off.

OFF

ON

 

 

VRM 1/2

Registers data on menu;

ENTER

MENU

 

selects menu item.

SELECT

 

 

 

 

 

 

Selects plotting

PLOT

CLEAR

 

SYMBOL

DELETE

 

symbol.

 

 

 

EBL

VRM

 

 

 

(TLL)

 

 

Rotates EBL;

Adjusts VRM; outputs

selects items

cursor position (TL/L)

on menu.

to external equipment;

 

selects items on

 

menu.

 

Figure 1-1 Control description

GAIN: Adjusts receiver sensitivity. Press to erase heading marker; enable manual tuning of the receiver.

A/C SEA: Suppresses sea clutter. Press for AUTO Anti-clutter Sea and Rain.

A/C RAIN: Suppresses rain clutter. Press to inscribe a reference mark (*).

BRILL: Adjusts display brilliance. Press to turn range rings on/off and adjust their brilliance.

Selects radar range.

Sets/cancels guard

alarm zone; silences guard zone alarm.

Target trails ON/OFF.

Each press processes offset EBL; linked with cursor / fixed / OFF.

Selects EBL to activate.

Selects VRM to activate.

Opens/closes menu.

Clears wrong data; deletes plot symbols and marks.

TRACKBALL

Shifts cursor and

No.1 EBL origin.

1 – 1

Furuno FR-8111, FR-8251 User Manual

Display Indications

Heading (gyro or

Speed

magnetic)

(MANUAL, LOG or NAV)

 

Tuning indicator,

 

AUTO (or MANU) tuning

HDG 123.4°

SPEED

MANUAL 30.0kt

 

 

Echo trail (TRU/REL)

Range

0.25 NM

Range ring interval

0.05

ZOOM (or SHIFT)

ZOOM

Pulselength

SP

Presentation mode

HU

 

Heading marker

 

Guard zone area

No.1 EBL

No.1 VRM

TRU TRAIL AUTO 00:45 30M

GUARD1 GUARD2

IN

Elapsed time, trail interval

Guard zone 1 (active alarm is circumscribed)

Guard zone 2

IN (guard zone type), SET (set alarm), or

ACK (alarm temporarily deactivated)

No.2 EBL

Waypoint marker

Range rings

Cursor

No.2 VRM

Auto clutter suppression

A/C

 

 

 

Function in use

 

 

 

(F3, Long range

F3

 

 

 

Echo Stretch)

L-ES

 

 

 

No.1 EBL bearing

345.6°R

EBL

 

 

(readout of active EBL

23.0°R

 

 

 

 

 

is circumscribed)

29:59

 

+ 105.0°R

00.74nm

No.2 EBL bearing

 

 

 

 

 

Watch alarm

Cursor

Cursor

 

elapsed time

 

bearing

range

 

 

 

NR

IR2

ES1

EAV1 VRM 0.080nm

0.220nm TTG 12:34

Time-to-go

Noise Rejection

Interference Rejection

Echo Stretch

Echo Averaging

No.1 VRM range

(readout of active VRM is

circumscribed)

No.2 VRM range

Figure 1-2 Display indications

1 – 2

Normal + PLOT

Select PLOT on

DISP DATA menu.

.

A/C

 

 

 

 

 

 

 

NR

 

 

 

 

 

 

 

 

IR2

 

F3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ES3

 

L-ES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EAV1

 

18.0°T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.829nm

 

EBL

 

 

 

 

 

 

VRM

 

290.0°R

 

 

 

 

 

 

10.87nm

 

 

 

 

 

 

 

TTG

 

99:99

 

 

 

93.7°R

13.82nm

12:34

 

 

 

 

 

 

 

TRUE VECTOR

 

 

BRG

332.7°T

COURSE 198.5°T

 

 

30MIN

 

 

RNG

12.5nm

SPEED

92.8kt

PLOT Data

TIME 01:28

 

 

CPA

8.89nm

TCPA

05:11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Normal + NAV

 

 

 

 

 

 

 

 

Select NAV on

 

 

 

 

 

 

 

 

DISP DATA menu.

A/C

 

 

 

 

 

 

NR

 

 

 

 

 

 

 

IR2

 

F3

 

 

 

 

 

 

 

 

 

 

 

 

 

ES3

 

L-ES

 

 

 

 

 

 

 

 

 

 

 

 

 

EAV1

 

18.0°T

 

 

 

 

 

 

 

 

 

 

 

 

VRM

1.829nm

 

EBL

 

 

 

 

 

10.87nm

 

290.0°R

 

 

 

 

 

 

 

OWN 34° 39.46N

 

 

 

 

93.7°R

WAY

321.6°

NAV Data

 

 

 

SHIP 135° 23.08E

 

 

 

 

13.82nm

POINT

18.23nm

(Requires position,

 

 

 

COURSE 216.1°

 

 

34°39.46N

TTG

35:42

depth and water

 

 

135°23.08E

DEPTH 265.2m

temperature data.)

DATE APR. 08 20:31

99:99

(GPS)

TTG 12:35

TEMP

23.5°C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NORMAL + NAV + PLOT

Select ALL on DISP

DATA menu.

 

A/C

 

 

 

 

 

 

NR

 

 

 

 

 

 

 

 

 

IR2

 

 

 

F3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ES3

 

 

 

L-ES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EAV1

 

 

 

18.0°T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.829nm

 

 

 

EBL

 

 

 

 

 

VRM

 

 

 

 

 

 

 

 

 

 

10.87nm

 

 

 

290.0°R

 

 

 

 

 

 

 

 

 

OWN 34° 39.46N

 

 

 

 

93.7°R

WAY

321.6°

 

 

 

 

 

 

 

 

 

 

 

 

SHIP135° 23.08E

 

 

 

 

13.82nm

POINT

18.23nm

 

 

 

 

 

 

 

 

COURSE 216.1°

 

 

34°39.46N

TTG

35:42

 

 

NAV Data

 

 

 

 

 

 

DATE APR. 08 20:31

 

135°23.08E

DEPTH 265.2m

 

 

 

99:99 (GPS)

 

TTG 12:35

TEMP

23.5°C

 

 

 

 

 

 

 

TRUE VECTOR

BRG

 

 

332.7°T

COURSE198.5°T

 

 

 

30MIN

RNG

 

 

12.5nm

SPEED

92.8kt

 

PLOT Data

 

TIME 01:28

CPA

 

 

8.89nm

TCPA

05:11

 

 

 

Figure 1-3 Display indications (lower part)

1 – 3

1.1 Turning the Radar On/Off

DANGER

Before turning on the radar, make sure no one is near the antenna unit. Serious injury or death can result if a rotating antenna strikes someone standing nearby.

1.3 Selecting Range

The range selected automatically determines the range ring interval, the number of range rings and pulse repetition rate, for optimal detection capability in short to long ranges.

 

Range

Range

0.75NM

Range ring

0.25

interval

SP

Range

Pulselength

rings

Turning on the radar

Press the POWER key. The control panel lights and a timer displays the time remaining for warm up of the magnetron, counting down from 3:00 to 0:00.

Turning off the radar

Press POWER and ST BY/TX keys together.

1.2 Transmitting, Stand-by

Transmitting

After the power is turned on and the magnetron has warmed up, ST-BY (Stand-By) appears at the screen center, indicating the radar is ready to transmit radar pulses. In stand-by the radar is available for use at any time.

Press the ST BY/TX key to transmit. The radar displays echoes in eight intensities according to echo strength.

Stand-by

When you won’t be using the radar for an extended period, but you want to keep it in a state of readiness, place it in stand-by by pressing the ST BY/TX key. The display shows ST-BY.

Figure 1-4 Location of range, range ring interval and pulselength indications

Procedure

Press the RANGE key at + or –. The range, range ring interval and pulselength appear at the top left corner of the display.

1 – 4

1.4 Presentation Mode

This radar has the following presentation modes:

Relative Motion (RM)

Head-up: Unstabilized

Course-up: Compass-stabilized relative to ship’s intended course

North-up: Compass-stabilized with reference to north

True Motion (TM)

North-up: Ground or sea stabilized with compass and speed inputs

Selecting presentation mode

Each time the MODE key is pressed, the presentation mode and mode indication at the upperleft corner of the screen change cyclically.

Loss of gyro signal

When the gyro signal is lost, the presentation mode automatically becomes Head-up and the HDG readout at the screen top shows

xxx.x. The x's do not disappear even when the gyro signal is restored, to warn the operator that the readout may be unreliable.

Match the gyro readout with the gyrocompass reading. Press the MODE key.

Presentation mode,

 

 

Description

representative display

 

 

H

340

350

000

010 020

A display withouth azimuth stabilization in which the

E

330

 

 

 

030

line connecting the center with the top of the display

320

 

 

 

040

A

310

 

 

 

050

indicates own ship's heading.

D

300

 

 

 

060

The target pips are painted at their measured distances

 

290

 

 

 

070

U

280

 

 

 

080

and in their directions relative to own ship's heading.

P

270

 

 

 

090

The short dashed line on the bearing scale is the north

 

260

 

 

 

100

 

250

 

 

 

110

mark and it indicates compass north.

 

 

 

 

 

 

 

 

 

 

 

 

240

 

 

 

120

Failure of the gyro will remove the north marker and

 

 

 

 

 

 

230

 

 

 

130

 

 

 

 

the HDG indication shows "xxx.x".

 

220

 

 

 

140

 

210

 

 

 

150

 

 

200

190

180

170

160

 

C

340

350

000

010

020

An azimuth stabilized display in which a line con-

 

 

 

necting the center with the top of the display indicates

330

 

 

 

030

O

320

 

 

 

040

own ship's intended course (namely, own ship's

U

310

 

 

 

050

 

 

 

 

 

previous heading just before this mode has been

R

300

 

 

 

060

 

 

 

 

 

selected).

S

290

 

 

 

070

 

 

 

 

 

 

E

280

 

 

 

080

Target pips are painted at their measured distances

 

 

 

 

 

270

 

 

 

090

 

 

 

 

and in their directions relative to the intended course

U

260

 

 

 

100

 

 

 

which is maintained at the 0-degree position while the

P

250

 

 

 

 

 

 

 

110

heading marker moves in accordance with the ship's

 

240

 

 

 

 

 

 

 

 

120

yawing and course changes. This mode is useful to

 

 

 

 

 

 

230

 

 

 

130

avoid smearing of picture during course changes. After

 

220

 

 

 

140

 

 

 

 

a course change, press the SHIFT ZOOM key to reset

 

210

 

 

 

150

 

200

190

180

170

160

the picture orientation if you wish to continue using

 

 

 

 

 

 

 

 

 

 

 

 

the Course-up mode.

 

 

 

 

 

 

If the gyrocompass fails, the presentation mode changes

 

 

 

 

 

 

to the Head-up mode and the north marker disappears.

 

 

 

 

 

 

Also, the HDG readout at the screen top shows xxx.x.

1 – 5

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