Furuno FR-1710 User Manual
MARINE RADAR
MODEL
FR-1710/1725/1760DS
A
(
C
9-52, Ashihara-cho,
Nishinomiya, Japan
Telephone: 0798-65-2111
Telefax: 0798-65-4200
ll rights reserved.
Printed in Japan
Your Local Agent/Dealer
FIRST EDITION : NOV. 1998
L : APR. 9, 2001
PUB. No. OME-34530
YOSH)
FR-1700 SERIES
SAFETY INSTRUCTIONS
DANGER
Before turning on the radar,
make sure that there is no one
near the antenna.
Serious injury or even death may result if
a rotating antenna strikes someone standing
nearby.
WARNING
Radio Frequency Radiation
Hazard
The radar scanner emits electromagnetic
radio frequency (RF) energy which can be
harmful, particularly to your eyes. Never
look directly into the scanner aperture from
a close distance while the radar is in operation or expose yourself to the transmitting
scanner at a close distance.
WARNING
Do not place liquid-filled containers on
the top of 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.
Distances at which RF radiation levels of
100 and 10 W/m
table below.
Note: If the scanner unit is installed at a
close distance in front of the wheelhouse,
your administration may require halt of
transmission within a certain sector of
scanner revolution. This is possible Ask
your FURUNO representative or dealer to
provide this feature.
Model
FR-1760DS
FR-1710
FR-1725
2
exist are given in the
Radiator
type
SN4A — 1.2 m
SN5A — 1.0 m
XN12AF — 0.15 m
XN20AF — —
XN20AF — 1.1 m
SN24AF — 1.0 m
Distance to
100W/m
point
Distance to
2
10W/m
point
2
i
WARNING
WARNING
DANGER
DANGER
DANGER
Danger/Warning Labels in Display
Unit
ELECTRICAL SHOCK HAZARD
Do not open the equipment.
Only qualified personnel
should work inside the
equipment.
Turn off the radar power
switch before servicing the
scanner unit. Post a warning sign near the switch
indicating it should not be
turned on while the scanner
unit is being serviced.
Prevent the potential risk of
being struck by the rotating
scanner and exposure to
RF radiation hazard.
Wear a safety belt and hard
hat when working on the
scanner unit.
This radar system contains the danger/
warning labels shown below. Do not remove
the labels. If a label is peeling off or is illegible, contact a FURUNO agent for replacement.
WARNING
To avoid electrical shock, do not
remove cover. No user-serviceable
parts inside.
Name : Warning Label
Type : 86-003-1011
Code No. : 100-236-230
DANGER
Electrical shock hazard.
Do not touch parts inside
this cover.
Serious injury or death can
result if someone falls from
the radar scanner mast.
Do not disassemble or modify the
equipment.
Fire, electrical shock or serious injury can
result.
Turn off the power immediately if water
leaks into the equipment or the equipment is emitting smoke or fire.
Continued use of the equipment can cause
fire or electrical shock.
Use the proper fuse.
Fuse rating is shown on the equipment.
Use of a wrong fuse can result in equipment
damage.
Keep heater away from equipment.
Name : Danger Label
Type : 14-055-4202
Code No. : 100-245-220
DANGER
Electrical shock hazard.
Turn off power before
servicing.
Name : Danger Label
Type : 66-022-2012
Code No. : 100-237-730
DANGER
Electrical shock hazard.
Do not touch anode cap
or its cable.
Name : Danger Label
Type : 14-055-4201
Code No. : 100-243-450
Heat can alter equipment shape and melt
the power cord, which can cause fire or
electrical shock.
ii
TABLE OF CONTENTS
INTRODUCTION.................................................................................v
SYSTEM CONFIGURATION.............................................................vi|
MENU TREE ....................................................................................viii
OPERATIONAL OVERVIEW
1.1 Turning on the Power ................................................................................................... 1-1
1.2 Transmitter ON............................................................................................................. 1-1
1.3 Control Description....................................................................................................... 1-2
1.4 CRT Brilliance .............................................................................................................. 1-3
1.5 Control Panel Backlighting........................................................................................... 1-3
1.6 Tuning the Receiver ..................................................................................................... 1-3
1.7 Degaussing the Screen................................................................................................ 1-4
1.8 Initializing the Compass Readout ................................................................................ 1-4
1.9 On-screen Legends and Markers ................................................................................ 1-5
1.10 Presentation Modes ................................................................................................... 1-6
1.11 Selecting the Range Scale ......................................................................................... 1-8
1.12 Entering Own Ship’s Speed ....................................................................................... 1-9
1.13 Pulselength, Echo Stretch........................................................................................ 1-10
1.14 Adjusting the Sensitivity ........................................................................................... 1-12
1.15 Suppressing Sea Clutter .......................................................................................... 1-12
1.16 Suppressing Precipitation Clutter............................................................................. 1-13
1.17 Interference Rejector ............................................................................................... 1-13
1.18 Measuring the Range............................................................................................... 1-14
1.19 Measuring Bearing................................................................................................... 1-14
1.20 Collision Assessment by the Offset EBL .................................................................. 1-15
1.21 Measuring Range and Bearing Between Two Targets ............................................. 1-15
1.22 Setting a Target Alarm Zone..................................................................................... 1-16
1.23 Off-centering (shift) .................................................................................................. 1-17
1.24 Echo Averaging........................................................................................................ 1-18
1.25 Electronic Plotting Aid (EPA) .................................................................................... 1-19
1.26 Target Trails (Echo T rails) ........................................................................................ 1-22
1.27 Parallel Index Lines.................................................................................................. 1-25
1.28 Origin Mark............................................................................................................... 1-25
1.29 Zoom ........................................................................................................................ 1-26
1.30 Markers .................................................................................................................... 1-26
1.31 User Keys (F1, F2, F3) ............................................................................................ 1-27
1.32 Function Keys .......................................................................................................... 1-27
1.33 Suppressing Second-trace Echoes.......................................................................... 1-29
1.34 Adjusting Brilliance of Screen Data.......................................................................... 1-29
1.35 Noise Rejector.......................................................................................................... 1-30
1.36 Time Alarm ............................................................................................................... 1-30
1.37 Enhanced Video....................................................................................................... 1-30
1.38 Degaussing Interval ................................................................................................. 1-31
1.39 Navigation Data........................................................................................................ 1-31
1.40 Video Contrast ......................................................................................................... 1-32
iii
1.41 Clutter Sweep........................................................................................................... 1-32
1.42 Outputting Target Position........................................................................................ 1-32
1.43 Background Color .................................................................................................... 1-33
1.44 Selecting Range Scales........................................................................................... 1-33
1.45 Selecting Bearing Scale Format .............................................................................. 1-33
1.46 A/D Converter Curve Setting.................................................................................... 1-34
1.47 Enlarging Close-in Targets....................................................................................... 1-34
1.48 Alarms ...................................................................................................................... 1-35
1.49 Peformance Monitor................................................................................................. 1-36
RADAR OBSERVATION
2.1 General ........................................................................................................................ 2-1
2.2 False Echoes ............................................................................................................... 2-2
2.3 SART (Search and Rescue Transponder) ................................................................... 2-3
2.4 RACON (Radar Beacon).............................................................................................. 2-5
MAINTENANCE, TROUBLESHOOTING
3.1 Periodic Maintenance Schedule .................................................................................. 3-1
3.2 Life Expectancy of Major Parts .................................................................................... 3-2
3.3 Fuse Replacement....................................................................................................... 3-3
3.4 Replacement of Batteries............................................................................................. 3-3
3.5 Simple Troubleshooting ............................................................................................... 3-3
3.6 Advanced-level Troubleshooting .................................................................................. 3-4
3.7 Diagnostic Test............................................................................................................. 3-7
PARTS LOCATION ..........................................................................4-1
SPECIFICATIONS.........................................................................SP-1
INDEX
Declaration of Conformity (FR-1760DS)
iv
INTRODUCTION
A Word to the Owner of This FURUNO Radar
Thank you for purchasing this FURUNO radar . We are confident you will discover why FURUNO
has become synonymous with quality and reliability.
Dedicated in the design and manufacture of marine electronics equipment for half a century,
FURUNO Electric Company has gained an unrivaled reputation as a world leader in the industry. This is the result of our technical excellence as well as our worldwide distribution and
service network.
Please carefully read and follow the safety information set forth in this manual before attempting to operate the equipment and conduct any maintenance. Your radar set will perform to the
utmost of its ability only if it is operated and maintained in accordance with the correct procedures.
Features
■ FR-1760DS is 60kW, S-band radar , FR-1710 is 10kW, X-band radar and FR-1725 is 25kW ,
X-band radar.
■ Daylight-bright rasterscan 17-inch multi-color, high-resolution display
■ New microprocessing technology with high-speed high-density gate array and software
expertise
■ Easy operation by combination of discrete keys, rotary controls, and menu operation, all
logically arranged and configured
■ Electronic Plotting Aid (EPA) fitted standard, Automatic Tracking Aid (ATA) option
■ Reliable CPA and TCPA warning in any plotting mode, accurate target data
■ The Clutter Sweep feature suppresses sea and rain clutters within an operator-selected
area.
■ A Video Plotter (Chart Plotter) and Performance Monitor are also optionally available.
v
FR-1760DS
SYSTEM CONFIGURATION
ANTENNA UNIT
110/115/
220 VAC,
1φ, 50/60 Hz
100 VAC,
1φ, 50/60 Hz
100/110/
115 VAC,
1φ, 50/60 Hz
220 VAC,
1φ, 50/60 Hz
440 VAC,
1φ, 50/60 Hz
Rectifier
RU-3305
Rectifier
RU-1758
Rectifier
RU-1803
Serial Data
(I/O)
GPS, etc.
Speed Log
Pulse Input
Water temperature,
water depth
Gyrocompass
External
Buzzer
OP03-21
For de-icer
POWER
SUPPLY
UNIT
PSU-002
DISPLAY UNIT
RDP-120
ATA Board
ARP-17
Gyro Converter
GC-8A
Video Plotter
RP-17 Board
SN4A-RSB-0051-N
SN4A-RSB-0051-I
SN5A-RSB-0051-N
SN5A-RSB-0051-I
Remote Display
FMD-8010/FMD-811
Option
Ship’s Mains
24/32 VDC
vi
Rectifier
RU-3424
100/110/115/220/230 VAC,
1φ, 50/60 Hz
FR-1710/1725
Serial Data
GPS, etc.
Speed Log
Water temperature,
water depth
Gyrocompass
OP03-21
(I/O)
Pulse Input
External
Buzzer
ANTENNA UNIT
DISPLAY UNIT
RDP-120
ATA Board
ARP-17
Gyro Converter
GC-8A
Video Plotter
RP-17 Board
FR-1710
XN12AF-RSB0074-062 (24 rpm)
XN20AF-RSB0074-062 (24 rpm)
XN12AF-RSB0075-062 (42 rpm)
XN20AF-RSB0075-062 (42 rpm)
FR-1725
XN20AF-RSB0074-063 (24 rpm)
XN24AF-RSB0074-063 (24 rpm)
XN20AF-RSB0075-063 (42 rpm)
XN24AF-RSB0075-063 (42 rpm)
Remote Display
FMD-8010/FMD-811
Option
Rectifier
RU-3424
Ship’s Mains
24/32 VDC
or
100/110/115/220/230 VAC,
1φ, 50/60 Hz
*
*: FR-1725 only
Note: The display unit is available
in AC or DC specification.
vii
MENU key
TGT TRAIL
MENU
1. VIDEO PLOT*
2. TGT TRAIL
3. TGT ALARM
4. PANEL DIM
5. ECHO SIG
6. FUNC
7. PLOT 1
8. MARK 2
9. BRILL 3
0. OTHER 4
* Requires Video Plotter
RP-17.
MENU TREE
1. TIME 15S 30S 1M 3M
6M 15M 30M CONT
2. MODE REL TRUE
3. SHADE MONO MULTI
4. LEVEL 1 2 3
5. TRAIL COPY OFF ON
6. THIN TRAIL OFF ON
7. THIN MODE 1 2 3 4
TGT ALARM
1. AREA NO1 NO2
2. MODE1 IN OUT
3. MODE2 IN OUT
DIMMER
1. PANEL BRIGHT 7 6 5 4 3 2 DIM
: Default
settings
ECHO SIG
1. TGT COLOR YEL GRN COLOR*
2. ECHO AVG OFF 0.5 1 2 3
3. INT REJ OFF 1 2 3
4. N REJ OFF ON
5. ENHANCE OFF ON
6. 2ND ECHO OFF ON
7. CONTRAST 1 2 3
8. CLTR SWEEP
9. SWEEP LVL 1 2 3
0. CNTR ENHANCE OFF ON
FUNC
1. FUNC1 5
2. FUNC2
3. F•1 6
4. F•2
5. F•3
6. A/D CURVE A B C D
* COLOR not shown
on HK type radar.
OFF ON(LINK) ON(FIX)
viii
PLOT MENU 1
1. MARK DISP OFF ON
2. ERASE
3. VEC REF REL TRUE
4. VEC TIME 30S 1M 3M 6M
15M 30M
5. CPA SET OFF 0.5NM 1NM 1.5NM
2NM 3NM 4NM
5NM 6NM
6. TCPA SET 30S 1M 2M 3M
4M 5M 6M 12M 15M
7. TRACK OFF ON
8. AUDIO ALARM OFF ON
9. INTVAL* 30S 1M 2M 3M 6M
0. ↓*
[0]
* Requires Automatic Tracking Aid
ARP-17 (Option).
PLOT MENU 2*
1. ↑
2. AUTO OFF ON SET
3. GUARD ZONE OFF ON SET
4. TRACK TEST
5. LAND DISCRIM 0 1 2 3 4 5
6. TTM OFF REL TRUE
7. VEC START 1MIN 20SCAN
8. REF TGT VECTOR OFF ON
9. TARGET BASED SPEED
MARK
1. ERASE
2. MODE REL TRUE
BRILL
1. TGT TRAIL
2. CHARACTER
3. HDG LINE
4. EBL/VRM
5. CURSOR
6. MARK
7. PLOT
8. OS SYMB
*
9. ↓
PLOTTER BRILL*
1. ↑
2. LAND
3. GRID
4. MARK
5. OS TRACK
6. TGT TRACK
7. COLOR
* Requires Video Plotter RP-17 (option).
ix
OTHER
1. HDG SET
2. SPD MODE MAN LOG NAV
LOG (S-BT)
LOG (S-WT)
3. MAN SPD
4. DRIFT SET
5. DISPLAY
6. MARK/LINE
7. TUNE
8. NAV DATA
9. EBL/VRM
0. ↓ 7
EBL/VRM
1. ↑
2. CURS BRG REL TRUE
3. EBL1 REL TRUE
4. EBL2 REL TRUE
5. CURS RNG NM KM SM
6. VRM1 NM KM SM
7. VRM2 NM KM SM
DISPLAY
DRIFT SET
1. ↑
2. SET&DRIFT OFF ON
3. SET
4. DRIFT
1. ↑
2. NAV DATA OFF ON
3. DISPLAY MAIN SUB
4. SART OFF ON
5. P M OFF ON
MARK/LINE
1. ↑
2. INDEX LINES 2 6
3. STERN MARK OFF ON
4. SHIP’S MARK OFF ON
5.
BEARING SCALE
1. ↑
2. MODE AUTO MAN
3. TUNE SET
360 COMPASS
TUNE
NAV DATA
1. ↑
2. NAV SEL ANY GPS LC
3. EXT WP OFF ON
4. OS POSN OFF L/L TD
5. DEPTH M FA
6. TEMP °C °F
7. TIME DIF UTC LOCAL
8. LOCAL TIME
ft
x
5
FUNC 1 MENU
1. ↑
2. FUNC SEL COAST OCEAN
R-SEA RAIN
BIRD-N BIRD-F
3. ECHO AVG OFF 0.5 1 2 3
4. INT REJ OFF 1 2 3
5. STRETCH OFF 1 2
6. N REJ OFF ON
7. ENHANCE OFF ON
8. CONTRAST OFF 1 2 3
9. A/C AUTO OFF ON
[F•2 MENU]
1. TRAIL TIME 26. HUTB MODE
2. TRAIL MODE 27. TUNE A/M
3. TRAIL SHADE 28. EXT WP
4. TRAIL LEVEL 29. OS POSN
5. ALARM AREA 30. CURS BRG
6. ALARM MODE 31. EBL1 T/R
7. PANEL DIMMER 32. EBL2 T/R
8. TGT COLOR 33. CURS RNG
9. ECHO AVG 34. VRM1 RNG
10. INT REJ 35. VRM2 RNG
11. ECHO STRETCH 36. CLTR SWEEP
12. NOISE REJ 37. MARK MENU
13. ECHO ENHANCE 38. DISP MODE
14. 2ND ECHO 39. A/D CURVE
15. CONTRAST 40. DRIGIN MARK
16. PLOT MENU 41. DEST ON CSR
17. MARK MODE
18. BRILL MENU
19. DRIFT MENU
20. NAV DATA
21. DISPLAY
22. SART
23. TIME ALARM
24. STERN MARK
25. OS MARK
Select by VRM knob
and hit ENTER key.
37 and 38 shown with connection of RP-17.
xi
7
OTHER
1. ↑
2. TEST
3. DEGAUSS
4. TIME ALARM
5. RANGE
6. INSTALL*
*: See Installation Manual.
DEGAUSS
1. ↑
2. DEGS INTV OFF 30S 1M 2M
3. DEGS DEG OFF 45° 90° 135°
TIME ALARM
1. ↑
2. ALARM INTV OFF 3M 6M
12M 15M 20M
RANGE
1. ↑
2. RANGE 1/8 1/4 1/2
3/4 1 1.5 2 3
4 6 8 12 16
24 32 48 72 96 120
FR-1760DS Max. range: 120 NM
FR-1710 Max. range: 72 NM
FR-1725 Max. range: 96 NM
xii
OPERATIONAL OVERVIEW
1.1 Turning on the Power
The [POWER] switch is located at the top
left corner of the display unit. Push it to switch
on the radar set. To turn off the radar , push it
again. The screen shows the bearing scale
and digital timer approximately 15 seconds
after power-on. The timer counts down three
minutes of warm-up time. During this period
the magnetron, that is, the transmitter tube,
is warmed for transmission. When the timer
has reached 0:00, the indication STBY appears, indicating that the radar is now ready
to transmit pulses.
POWER
switch
1.2 T ransmitter ON
After the power has been turned on and the
magnetron has warmed, STBY (Standby) appears at the screen center, indicating the radar is ready to transmit radar pulses.
Press the [STBY/TX] key to transmit.
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 standby by
pressing the [STBY/TX] key. The display
shows STBY when the radar is in standby.
Video Lockup Recovery
Video freeze-up or lock-up, can occur unexpectedly on digital rasterscan radars. This is
mainly caused by heavy spike noise in the
power line and can be noticed by carefully
watching the nearly invisible sweep line.
If you suspect that the picture is not updated
every scan of the antenna or no key entry is
accepted notwithstanding the apparently
normal picture, do Quick Start to restore
normal operation.
Figure 1-1 Location of power switch
DANGER
Before turning on the radar, make sure
that there is no one near the antenna.
Serious injury or even death may result if
a rotating antenna strikes someone standing
nearby.
1. Turn off the POWER switch and turn it on
again within 10 seconds.
2. Push the Transmit switch labeled STBY/TX
for Transmit status.
1-1
1.3 Control Description
Selects presentation mode.
1
MODE
Offset EBL origin to measure range,
Turns power on/off.
Chart card slot
(Requires video
plotter.)
ROTATE: Rotates EBL.
PUSH: Degausses
screen.
Alternately selects
No.1 EBL,
No.2 EBL.
Erases EBL.
Turns on/off target trails.
Enables/disables guard zone.
Off centers picture.
Turns zoom function on/off.
Turns parallel index lines on/off.
bearing between two targets;
predict collision course.
TRACKBALL
Shifts cursor.
ROT A TE: Adjusts
screen brilliance.
PUSH: Selects background color.
DEGAUSS (PUSH)
EBL
ON
OFF
BKGND COLOR (PUSH)
BRILL
F1
F2 F3
ROTATE: Suppresses
sea clutter.
PUSH: Turns on/off
automatic clutter
suppression.
TLL (PUSH)
A/C RAIN
A/C AUTO (PUSH)
Activates
desired
function.
ROTATE: Suppresses
precipitation clutter.
PUSH: Outputs
target position.
2
3
4
5
6
7
8
9
0
HL OFF (PUSH)
A/C SEA
GAIN
RANGE
Selects range
scale.
Turns on/off
menu-selected
function.
TGT
TRAIL
GZ
ALARM
SHIFT
ZOOM
INDEX
LINE
EBL
OFFSET
MARK
RINGS
Inscribes mark.
Adjusts brilliance of fixed range
rings.
PREV
MENU
MENU
CANCEL
CLEAR
ENTER
SELECT
Displays previous menu.
Opens/closes menu.
Menu open: Cancels item selected.
Menu closed: Erases mark.
Menu open: Registers selection.
Menu closed: Displays data of
selected plot symbol.
ROT A TE: Adjusts gain.
PUSH: Temporarily erases heading line,
markers (stern, north) OS symbol.
Selects pulselength, echo
stretch.
Adjusts radius
of VRM.
10-1
2
-2
3
-3
ECHO
STBY
TX
VRM
ON
OFF
ACQ
Manually acquires
target (plotting
AUDIO
OFF
function).
Silences timer,
ATA and EPA
alarms.
Alternately selects
Erases VRM.
No.1 VRM, No.2 VRM.
Transmit/standby
switch
1-2
Figure 1-2 Control description
1.4 CRT Brilliance
1.6 Tuning the Receiver
Operate the BRILL control on the control
panel of the display unit to adjust the entire
screen brightness. Note that the optimum
point of adjustment varies with ambient lighting conditions, especially between daytime
and nighttime.
1.5 Control Panel Backlighting
1. Press the [MENU] key.
MENU
1. VIDEO PLOT
2. TGT TRAIL
3. TGT ALARM
4. PANEL DIM
5. ECHO SIG
6. FUNC
7. PLOT
8. MARK
9. BRILL
0. OTHER
Figure 1-3 Main menu
2. Press the [4] key twice. The following display appears.
DIMMER
1. PANEL BRIGHT 7 6 5 4 3 2 DIM
Figure 1-4 Screen for adjustment
of panel dimmer
3. Press the [1] key to select backlighting
level desired.
4. Press the [ENTER/SELECT] key to register your selection and the [MENU] key
to close the menu.
The radar is set for automatic tuning at the
factory.
Automatic tuning
The radar receiver is tuned automatically
each time the transmitter is turned on. The
tuning indicator and the label AUTO at the
top right corner of the display unit shows the
tuning circuit is working. The receiver may
become detuned, in automatic tuning, if own
ship’s radar receives the radar signal of another shipborne radar. To retune, press the
[STBY/TX] key twice.
Manual tuning
1. Set up for manual tuning following the
procedure shown below.
2. While observing the picture on the 48 mile
scale, press and hold down the GAIN
control while slowly adjusting the VRM rotary control to find the best tuning point.
This condition is where the tuning indicator lights to about 80% of its total length.
Note that the tuning indication will never
extend to full length.
Selection of manual or automatic
tuning
1. Press the [MENU] key.
2. Press the [0] key twice to display the
OTHER menu.
OTHER
1. HDG SET
2. SPD MODE MAN LOG NAV
LOG (S-BT)
LOG (S-WT)
3. MAN SPD
4. DRIFT SET
5. DISPLAY
6. MARK/LINE
7. TUNE
8. NAV DATA
9. EBL/VRM
0. ↓
Figure 1-5 OTHER menu
1-3
3. Press the [7] key twice to display the
TUNE menu.
TUNE
1. ↑
2. MODE AUTO MAN
3. TUNE SET
Figure 1-6 TUNE menu
4. Press the [2] key to select the option
AUTO or MAN from the MODE field.
5. Press the [ENTER/SELECT] key.
1.8 Initializing the Compass Readout
With a compass interfaced with the radar,
ship’s heading is displayed at the top of the
screen. Upon turning on the radar, match the
on-screen HDG readout with the compass
reading by the procedure shown below. Once
you have set the initial heading correctly , resetting is not usually required. However , if the
HDG readout goes wrong for some reason,
repeat the procedure to correct it.
6. Press the [MENU] key to close the menu.
1.7 Degaussing the Screen
Each time the radar is turned on, the degaussing circuit automatically demagnetizes
the CRT screen to eliminate color contamination caused by earth’s magnetism or magnetized ship structure.
The screen is also degaussed automatically
at certain time intervals, which may be selected on the menu. While being degaussed,
the screen may be disturbed momentarily
with vertical lines. If you wish to degauss by
manual operation, push the EBL rotary control (DEGAUSS control).
1. Press the [MENU] key to display the main
menu.
2. Press the [0] key twice to display the
OTHER menu.
OTHER
1. HDG SET
2. SPD MODE MAN LOG NAV
LOG (S-BT)
LOG (S-WT)
3. MAN SPD
4. DRIFT SET
5. DISPLAY
6. MARK/LINE
7. TUNE
8. NAV DATA
9. EBL/VRM
0. ↓
Figure 1-7 OTHER menu
1-4
3. Press the [1] key to select HDG SET.
4. Operate the VRM rotary control to duplicate the compass readout on the radar
menu display.
5. Press the [ENTER/SELECT] key.
6. Press the [MENU] key to close the menu.
1.9 On-screen Legends and Markers
Heading
(Requires heading sensor.)
Range ring interval
Range to cursor
Range to cursor
Bearing to cursor
Presentation mode
Pulselength
Offcenter
Function
Target alarm
zone No. 1
No. 1 EBL
No. 2 EBL
Range rings
Interference
rejector
Echo stretch
Noise rejector
Auto clutter
reduction
Echo averaging
Video contrast
No. 1 EBL
bearing
Heading line
8
/2 NM
4.111NM
103.7°R
HU
PULSE MIP
OFF CENT
FUNC1
COAST
320
310
300
290
2
8
0
2
7
0
2
6
0
2
5
0
240
230
220
IR2
ES1
NR
A/C AUTO
EAV1
VIDEO
CONTRAST1
EBL
345.6° R
23.0° R
No. 2 EBL
bearing
2nd trace echo
rejector
2nd Echo
340
340
330
330
320
210
200
OS
(L/L)
135°
RNG
WP
BRG
TTG 00:20
9/22
12:34
Date, time
Range, bearing
to waypoint
Own ship position
HDG 234.5°
LOG 12.8 KT
350
350
190
40.36’N
34°
18.23’E
123.9NM
220°R
UTC
Log speed (Requires log device.)
AUTO
GAIN
A/C SEA
A/C RAIN
BRILL
000
000
010
010
020
020
030
030
040
040
140
150
160
170
180
40°21.211’N
127°21.321’E
TTG 00 : 50
TEMP 20.1°C
DEPTH 123.5M
Water temperature,
water depth
T-ALM
02:30
REL TRAIL
30S 0 : 16
2.093 NM
4.465 NM
Timer alarm
countdown
Cursor position,
time-to-go
050
050
060
060
120
130
GZ1
GZ2
OUT IN
VRM
0
7
0
110
0
7
0
0
8
0
0
9
0
1
0
0
Tuning bar
GAIN setting
A/C SEA setting
A/C RAIN setting
BRILL setting
Cursor
Waypoint marker
Target alarm
zone No. 2
No.1 VRM
No.2 VRM
North marker
Guard zone (active one
is circumscribed)
Guard zone mode
Target trail reference
Target trail time,
elapsed time
No. 1 VRM
range
No. 2 VRM
range
Figure 1-8 On-screen legends and markers
Note: The cursor functions to measure the range and bearing to a radar target, and is permanently displayed. It can be returned to the screen center by pressing the VRM rotary control.
1-5
1.10 Presentation Modes
This radar has the following presentation
modes: Head-up, Head-up/TB, Course-up,
North-up, and True Motion.
Selecting presentation mode
Press the [MODE] key on the panel at the
right side of the display unit. Each time the
[MODE] key is pressed, the presentation
mode and mode indication at the upper-left
corner of the screen change cyclically.
Note: When a failure occurs in the gyrocompass, the radar will automatically be switched
to unstabilized presentation mode. All compass related data will read Relative values.
Loss of Compass Signal
When the compass signal is lost, the buzzer
sounds once, the presentation mode becomes
head-up and the compass readout shows
xxx.x°. After restoring the compass signal,
press the [MODE] key to display the compass
readout. Readjust the compass readout as
shown on page 1-4. Also HDG SIGNAL
MISSING appears at the bottom of the screen.
Presentation mode,
representative display
Heading
marker
North
marker
300
290
280
270
260
250
240
North
marker
310
300
290
280
270
320
310
230
220
340
330
320
260
250
210
330
240
350
200
340
000
230
350
190
010
220
The bearing scale rotates with
a compass signal.
Heading
line
000
010
170
180
Heading
marker
030
020
200
210
020
160
190
040
030
150
050
180
040
050
130
140
Heading
line
060
070
160
170
120
060
150
080
Description
Head-up Mode
A display without azimuth stabilization in which
the line connecting the center with the top of the
display indicates own ship’s heading.
070
080
090
100
110
The target pips are painted at their measured distances and in their directions relative to own ship’s
heading.
A short line on the bearing scale is the north marker
indicating compass north. A failure of the compass
input will cause the north marker to disappear and
the HDG readout to show asterisks xxx.x°.
Head-up TB (True Bearing) Mode
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
090
100
110
120
130
140
scale. The bearing scale is compass stabilized, that
is, it rotates in accordance with the compass signal,
enabling you to know own ship’s heading at a glance.
This mode is available only when the radar is interfaced with a compass.
If the compass fails, the bearing scale returns to the
state of head-up mode.
1-6
Presentation mode,
representative display
Description
North
marker
330
320
310
300
290
280
270
260
300
290
280
270
260
250
240
310
230
250
340
320
220
240
350
210
330
000
230
010
220
340
200
Heading
marker
030
020
200
210
North
000
350
190
180
190
010
170
040
180
020
160
Heading
line
050
060
070
160
170
Heading
line
030
040
050
130
140
150
080
090
100
110
120
130
140
150
Heading
marker
060
070
080
090
100
110
120
Course-up Mode
An azimuth stabilized display in which a line connecting the center with the top of the display indicates own
ship’s intended course (namely, own ship’s previous
heading just before this mode has been selected).
Target pips are painted at their measured distances
and in their directions relative to the intended course
which is maintained at the top of screen while the
heading line moves in accordance with ship’s yawing
and course changes. This mode is useful to avoid
smearing of picture during course change. After a
course change, press the [SHIFT] key to reset the
picture orientation if you wish to continue using the
course-up mode. The heading line gets back to
perpendicular.
North-up Mode
In the north-up mode, target pips are painted at their
measured distances and in their true (compass)
directions from own ship, north being maintained
up of the screen. The heading line changes its
direction according to the ship’s heading.
If the compass fails, the presentation mode changes
to head-up and the north marker disappears. Also,
the HDG readout shows xxx.x°.
1-7
Presentation mode,
representative display
Description
270
280
260
290
250
300
240
310
230
North
marker
330
320
220
210
340
200
350
190
000
180
010
170
020
160
Heading
line
030
040
140
150
050
060
120
130
Heading
marker
070
080
090
100
110
True Motion Mode
Own ship and other moving objects move in accordance with their true courses and speeds. In ground
stablized TM, all fixed targets, such as landmasses,
appear as stationary echoes. In the sea stablized TM
without set and drift input, the landmass can move on
the screen.
When own ship reaches a point corresponding to
75% of the radius of the display, the own ship is
automatically reset to a point of 75% radius opposite
to the extension of the heading line passing through
the display center. Resetting can be made at any
moment before the ship reaches the limit by pressing
the [SHIFT] key. Automatic resetting is preceded by a
beep sound.
If the compass fails, the presentation mode is
changed to the head-up mode and the north marker
disappears. The HDG readout at the top of the
screen shows xxx.x°.
North
Heading
line
300
290
280
270
260
250
240
350
340
330
320
310
230
220
210
200
(a) True motion
is selected
000 010
marker
020
030
040
050
060
070
080
090
100
110
120
130
140
150
160
170180190
300
290
280
270
260
250
240
340
330
320
310
230
220
210
200
(b) Own ship has reached a
point 75% of display radius
Automatic resetting of own ship position in true motion mode
1.11 Selecting the Range Scale
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. You can select pulselength with
the ECHO control. For details, see paragraph 1.13.
000 010
350
020
030
040
050
060
070
080
090
100
110
120
130
140
150
160
170180190
320
310
300
290
280
270
260
250
240
230
220
000 010
350
340
330
210
200
020
030
040
050
060
070
080
090
100
110
120
130
140
150
160
170180190
(c) Own ship is automatically
reset to 75% of radius
Press the [RANGE] key to select a range
scale. The range, range ring interval and
pulselength appear at the top left corner of
the display.
1-8
1.12 Entering Own Ship’s
Speed
4. Press the [ENTER/SELECT] key to confirm your selection followed by the
[MENU] key to close the menu.
EPA requires an own ship speed input and
compass signal. The speed can be entered
from a speed log or navaid (automatic) or
through the plotting keypad (manual).
Automatic speed input
1. Press the [MENU] key and the [0] key
twice to show the OTHER menu.
OTHER
1. HDG SET
2. SPD MODE MAN LOG NAV
LOG (S-BT)
LOG (S-WT)
3. MAN SPD
4. DRIFT SET
5. DISPLAY
6. MARK/LINE
7. TUNE
8. NAV DATA
9. EBL/VRM
0. ↓
Figure 1-9 OTHER menu
2. Press the [2] key to select the menu item
SPD MODE.
3. Press the [2] key again to select the LOG
or NAV.
LOG: Pulse input from speed
log, serial data
NAV: Speed data from naviga-
tion equipment
Note: Be sure not to select a LOG option or
NAV when respective equipment is not connected. If the log signal or navaid signal is
not provided, the ship’s speed readout at the
screen top will be blank.
Manual speed input
If the radar is not interfaced with a speed log,
or the speed log does not feed correct speed
enter the ship’s speed as follows:
1. Press the [MENU] key and the [0] key
twice to show the OTHER menu.
2. Press the [2] key to select MAN from the
SPD MODE field, and then press the [ENTER/SELECT] key.
3. Press the [3] key twice to select the MAN
SPD field.
4. Enter speed with the numeric keys.
5. Press the [ENTER/SELECT] key to confirm your selection followed by the
[MENU] key to close the menu.
LOG 10.0KT WT
Or NAV
LOG or NAV speed indication
LOG 8.7KT WT
8.5 F ← Fore/Aft
0.5 SB ← Port/STBD
GT
About Ship’s Speed
c’
a
Wind,
⇒
current
LOG (serial data) speed indication
a: Fore/aft speed
b: Port/starboard speed
c: Speed made good (actual speed)
c
Pulse signal: a only (water tracking speed)
Serial speed: a and b
b
Water tracking speed = relative speed
(including error due to wind, current
Ground tracking speed = true speed
(no influence from wind, currents)
Navigator speed: c→c’
Speed input (c) from navgator (GPS, etc.)
c is converted to fore/aft direction (c’) and
displayed on the radar screen.
1-9
1.13 Pulselength, Echo Stretch
The ECHO control selects pulselength, and
echo stretch when it is not turned on with a
user key ([F1], [F2], [F3]). The pulselength in
use is displayed at the upper-left position of
the screen using the abbreviations (suffixed
with “P”) shown in the table on the next page.
Echo stretch level (ES1, ES2) in use appears
at the bottom left position, using the indication ES1 or ES2.
Appropriate pulselengths are preset to individual range scales and function keys. Therefore, you are not usually required to select
them. If you are not satisfied with the current
pulselength settings, however, it is possible
to change them by the ECHO control. The
ECHO control settings which can select the
echo stretch are shown in the table below.
The legend and pulselengths are shown in
below.
5271/0171-RFSD0671-RF
sµ70.0:P1Ssµ80.0:PS
sµ51.0:P2Ssµ3.0:P1M
sµ3.0:P1Msµ6.0:P2M
sµ5.0:P2Msµ2.1:PL
sµ7.0:P3M
sµ2.1:PL
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 suppressed
before activating this function.
Enlarged in bearing
(circumferential)
direction with ES1
+
If a distant target
is hard to see,
use ES 1.
Enlarged with ES2
+
If a target becomes
smaller as it approaches
own ship, use ES 2.
Figure 1-10 Echo stretch
On long ranges target echoes tend to shrink
in the bearing direction, making them difficult to see. On short and medium ranges such
as 1.5, 3 and 6 nm scales, the same size
targets get smaller on screen as they approach the own ship. These are due to the
inherent property of the radiation pattern of
the antenna. To enhance target video, use
the echo stretch function. There are two
types: echo stretch 1 (ES1) to enlarge in bearing direction for long range detection, and
echo stretch 2 (ES2) to enlarge in range direction.
1-10
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