MODEL FR-8051/8111/8251
MARINE RADAR
OME34240G30 OME34240G30
00080735211 00080735211
Pub. No. OME-34240
G3 MAY. 07
DANGER
SAFETY INFORMATION
DANGER
DANGER
Do not diassemble or modify the equipment
Radio Frequency Radation Hazard
Use the correct fuse
COMPLIANCE WITH R&TTE DIRECTIVE 1999/5/EC
TABLE OF CONTENTS
Chapter 1 OPERATION
Chapter 4 TROUBLESHOOTING
Chapter 3 MAINTENANCE
Chapter 2 RADAR OBSERVATION
Chapter 5 LOCATION OF PARTS
FOREWORD
Features
A Word to FR-8051/8111/8251 Owners
115/230 VAC
CONFIGURATION OF FR-8051/8111/8251
Antenna Unit
SPECIFICATIONS
Transceiver Module
Display Unit
Power Supply and Power Consumption
Environmental Conditions
Others
Standard Set
EQUIPMENT LISTS
Name
Type
Spare Parts
Optional Equipment
xiii
Name
CATEGORIZATION BY SPECIFICATION
Control Description
Chapter OPERATION
Figure 1-1 Control description
0.25 NM
Display Indications
Figure 1-2 Display indications
Normal + PLOT
Figure 1-3 Display indications lower part
Normal + NAV Select NAV on DISP DATA menu
NORMAL + NAV + PLOT
1.1 Turning the Radar On/Off
Procedure
1.3 Selecting Range
1.2 Transmitting, Stand-by
1.4 Presentation Mode
Loss of gyro signal
Selecting presentation mode
Presentation mode
Description
c Own ship is automatically reset to 50% of radius
Presentation mode
representative display
Basic menu operation
1.5 Menu Overview
Figure 1-5 MAIN menu
Figure 1-6 TRAIL menu
ERASE erase all plotting symbols
Menu tree
Preset pulselength for 0.75~1.5, 3, 6, 12~24NM
selection of plotting symbol
TUNE SET AUTO, MANU
INITIAL
SPD MODE MAN, LOG, NAV
MAN SPD 00.0kt
1.6 Tuning the Receiver
Video lockup recovery
1.7 Adjusting Sensitivity
1.8 Adjusting Picture Brilliance
1.10 Adjusting Range Ring Brilliance
1.9 Adjusting Brilliance of Control Panel and Markers
1.11 Suppressing Sea Clutter
Figure 1-8 BRILL menu
1.13 The Heading and North Markers
1.12 Suppressing Rain Clutter
1.14 Measuring the Range
Figure 1-10 Effect of A/C RAIN control
Figure 1-13 How to measure bearing by EBL
Figure 1-12 How to measure range by VRM
1.15 Measuring Bearing
Measuring range by VRM
Canceling the cursor offset
Figure 1-14 How to assess risk of collision
1.16 Collision Assessment by
1.17 Measuring Range and
Canceling off-centered picture
Adjusting index lines intervals
1.18 Index Lines
1.19 Off-centering the Picture
Presetting the FUNCTION key
Canceling zoom
1.20 Zoom
1.21 Inscribing Marks on the Display
1.23 Own Ship Speed
Procedure
Table 1-1 Eight available target objectives
Figure 1-19 FUNC menu
1.25 Interference Rejector
1.24 Ship’s Graphic
1.26 Echo Trails
Manual speed input
Starting echo trail
Canceling echo trail
Trail time
Trail reference
Trail brilliance
1.27 Electronic Plotting E-plot
Plotting a target
Figure 1-23 Plotting
Canceling individual target plotting
Canceling target plotting
Canceling all target plotting
Target data
Figure 1-24 In and out alarms
1.28 Setting a Guard Alarm Zone
Setting a guard zone
Selecting guard zone type
Figure 1-25 How to set the guard alarm
1.29 Watch Alarm
Silencing the aural alarm
Canceling the guard zone and guard alarm
Figure 1-26 Echo average
1.31 Suppressing Second-Trace Echoes
1.32 Echo Stretch
Presetting pulselength
1.33 Noise Rejection
1.34 Selecting Pulselength
1.35 Waypoint Display
Table 1-2 Default pulselength settings
1.36 Outputting Cursor Position TLL data
Selecting pulselength set to use
Figure 1-29 Blank areas where transmission is suspended
1.39 Alarm Output Signal On/Off
1.37 Selecting Unit of Range Measurement, Bearing Reference
1.38 Sector Blanking
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Figure 2-2 Range resolution
2.2 Range Resolution
Chapter RADAR OBSERVATION
2.1 Radar Picture, Target Properties and Radar Pulse
Figure 2-3 Bearing resolution
2.3 Bearing Resolution
2.4 False Echoes
Indirect echoes
Side-lobe echoes
2.5 Minimum and Maximum Ranges
Minimum range
Figure 2-6 Side-lobe echoes
2 SART range errors
How to show SART marks on the display
2.6 Locating a Ship or Survival Craft in Distress by SART
SART background
3 Radar bandwidth
5 Detuning the radar
4 Radar side lobes
6 Gain
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When Working on the Antenna Unit
Chapter MAINTENANCE
Danger!-Electrical Shock Hazard
3.2 Life Expectancy of Major Parts
3.1 Periodic Maintenance Schedule
Interval
Check point
4.1 Simple Troubleshooting
Chapter TROUBLESHOOTING
When Working on the Antenna Unit
Danger!-Electrical Shock Hazard
Serviceman qualification
4.2 Advanced-level Troubleshooting
Problem
DANGER! - High Voltage
Check point and probable
Remedy
Check point and probable
Problem
Remedy
cause
Figure 4-2 Diagnostic test, test pattern
4.3 Diagnostic Test
Figure 4-1 Diagnostic test screen
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5.1 Antenna Unit
Chapter LOCATION OF PARTS
Figure 5-1 Antenna unit all models, cover opened
DANGER
Figure 5-2 RF transceiver unit FR-8251
5.2 RF Transceiver Unit
Figure 5-3 RF transceiver unit FR-8251, bottom view, cover removed
N photo No
Circulator RU-3686
Figure 5-4 RF transceiver unit FR-8051/8111
IF Amplifier Limiter S-LX20 MIC RU-8014S or RU-9254
MODULATOR Board MD-9162 Magnetron FR-8051 MAF1422B FR-8111 MAF1425B
Figure 5-6 Display unit, top view
5.3 Display Unit common to all models
Figure 5-7 Display unit, top view
N photo No
Figure 5-9 Display unit, left side view
Figure 5-8 Display unit, right side view
potentiometers for adjustment
High voltage is present at the
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A.1 Performance Monitor
Appendix A DESCRIPTION OF OPTIONAL EQUIPMENT
Operating a performance monitor
A.3 Video Plotter RP-15
A.2 Auto Plotter ARP-15
A.4 Fluxgate Heading Sensor C-2000
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