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Marine Radar
JMA-7725-6
JRC JMA-7725-6 User Manual
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4
–
2
4
Procedures
Procedures
Press the
RR
key.
The fixed range rings appear.
Range is judged from the percentage of target to the fixed range ring spacing.
(The fixed range ring spacing is displayed on the upper left of the screen.)
4.2
Measurement with Fixed Range Rings
158
160
Table of Contents
Default Chapter
2
Preface
2
Before Operation
3
Cautions to be Used During Operation
4
Precautions before Operation
5
Cautions for High Voltage
5
What to Do in Case of Electric Shock
5
First Aid Treatments
6
When Pulse Is Beating but Breathing Has Stopped
7
When both Pulse and Breathing Have Stopped
8
Equipment Appearance
9
Table of Contents
10
General and Equipment Composition
10
True and False Echoes on Display
14
Countermeasures for Trouble
14
Glossary
17
1 General and Equipment Composition
21
Functions
22
Functions of this Equipment
22
Functions of Radar
22
Functions of ATA (Option)
22
Features
24
Composition
25
Configuration
26
General System Diagram
31
Concept of Collision Avoidance Measures
35
(Explanatory Notes)
35
2 Names and Functions of Control Panel Switches and Menu Composition
39
Names and Functions of Control Panel
40
Menu Composition
52
Menu Selection
52
Menu List
53
3 Basic Operation
59
Flow of Operation
60
Turning Power on and Starting the System
60
Degauss
62
Tuning
62
Observation and Video Adjustment
63
Data Acquisition and Measurement
63
Ending Operation and Stopping the System
63
Preparation
64
Tuning [TUNE]
64
Adjusting Sensitivity [GAIN]
64
Adjusting CRT Brilliance [BRILL]
64
Suppressing Sea Clutter [SEA]
65
Suppressing Rain and Snow Clutter [RAIN]
66
Adjusting Brilliance
67
Selecting DAY NIGHT Modes [DAY NIGHT]
68
Setting Color
69
Background Color
70
Setting Radar Video and Trails Color
71
Rejecting Radar Interference
72
Adjusting Control Panel Brilliance [PANEL]
72
Stabilization
73
Basic Operation
74
Using Trackball to Move Cursor
74
Using EBL (Electronic Cursor) [EBL1 EBL2]
74
Selecting Range Scales [RANGE]
77
Selecting Pulse Width [PL]
77
Disabling Ship's Head Marker [HL OFF]
77
Using Parallel Index Line
78
Selecting Presentation Mode [PRESENTATION MODE]
80
Selecting True Motion Relative Motion Display Modes [TM RM] [TM RST]
81
Changing Own Ship Display Position [OFF CENT]
83
Displaying Other Ship's Trails [TRAILS]
84
Displaying Fixed Range Ring [RR]
85
Displaying Variable Range Markers
85
Vrm2]
85
Using Alarm [GZ MENU]
87
Stopping Alarm
90
Setting Alarm Sound Level
91
Enhancing Target
92
Setting Cross Cursor Length and Fixing Cursor Position
93
Displaying Ship's Stern Marker
95
Setting Range Unit in KM
96
Displaying Video Processing Screen
98
Zooming Display
100
Selecting Display Mode [MAP]
101
Using Electoronic Plot (EPA)
102
Plotting Target
102
Modifying Plot
103
Deleting Plot
103
Displaying Plot Numerical Data
104
Plot Symbol
105
Setting Vector Display
106
Setting Vector Time
107
Displaying
108
Clearing Plot no
108
Setting CPA
109
Tcpa
109
Turning Alarm Sound on off
111
Displaying Clearing CPA Ring
112
Displaying Date and Time
113
Displaying the Plain Radar Screen
114
Operation of the Performance Monitor
116
Using Function Key [FUNC]
121
Overview
121
Operation Method
121
Function Setting Items
122
Operation Outline of the Function Setting Items
123
Displaying the Chart
134
Displaying the Shoreline ROM Card Made by JRC
134
Displaying the ERC Card
135
Displaying the JRC Chart
136
Displaying the Contour of the Shoreline ROM Card by JRC
137
Displaying Own Ship Track
138
Changing Track Color [When Equipped with the Plotter]
138
Selecting Track Storing Interval
138
Stopping Track Storing
140
Deleting Track by Color (Using the [COLOR] Control)
142
Deleting Track by Color (Using Menu)
144
Displaying or Hiding Track by Color
146
Displaying Navigation Information
148
Creating the Navigation Information (Navigation Lines)
148
Creating the Navigation Information (Coast Lines and Contour Lines)
151
Creating/Deleting the Navigation Information (Navigation Marks)
152
Deleting a Mark or Line by Specifying a Color or Shape
155
Displaying Geodetic Datum
156
4 Measurement
157
Measurement between Two Optional Points
157
Measurement with Trackball
158
Measurement with Fixed Range Rings
159
Measurement between Two Optional Points of Target
161
5 Operations of Ata (Option)
162
Initialization
164
Setting Collision Judgment Conditions : SAFE LIMIT
164
Automatically Set Mode (at Activation)
169
Setting a Range Scale
169
Display Mode
170
Setting the Motion Display Mode [TM RM]
170
Setting the Bearing Display Mode [AZI MODE]
170
Target Acquisition
171
Automatic Acquisition
171
Manual Acquisition
172
Setting Deleting a Target Number
172
Displaying the ATA Data
173
Vector Display
173
Past Position Display
177
Data Reading
180
Types of Data Readouts to be Displayed
180
Displaying Method of Numerical Data Readouts [TGT DATA]
181
Alarm Display
182
Tcpa
182
Guard Zone Alarm
183
Lost Target Alarm
184
Stopping Alarm
184
Erasing an Unnecessary Target
185
Erasing a Target Per Target
185
Erasing All Targets
185
Adjusting Intensity
186
Function Check
187
Vector Constant Setting (ATA)
187
Video Level Setting
188
Checking the ATA Operation
191
Target Past Track
193
Setting Target Past Track Function
193
Specifying Target Past Track
194
Setting Target Past Track Color
195
Setting Target Past Track Display
196
Setting the Storage Interval
197
Erasing the Storage of Target Past Track by Specifying a Color
198
Erasing the Storage of Target Past Track by Specifying a Number
199
Writing Target Past Track to Card 2
201
Turning on and off the ATA Display
202
Turning on and off the Alarm Sound of Dangerous and Lost Targets
203
Turning on and off the Alarm Sound of
203
Dangerous and Lost Targets
203
Simulation
204
(Checking the ATA According to a Pseudo Target)
204
6 True and False Echoes on Display
205
Radar Line-Of-Sight Range
206
Strength of Reflection from Target
208
Sea Clutters
208
False Echoes
208
Display of Radar Transponder
211
7 Maintenance
212
Routine Maintenance
213
Cleaning
213
Cleaning of the Radar
213
Cleaning of the ATA
213
Maintenance of each Unit
214
Scanner Unit NKE-1055 1056
214
Display Unit NCD-3901-2
216
8 Countermeasures for Trouble
217
Function Check
218
Testing Functions with Menu
218
Memory Test
219
Key Switch Test
220
Sensor Test
221
Line Test
221
ATA Status
222
ROM Version
222
Error Logging
223
Magnetron Current, Running and Transmission Time
224
Failure Check
225
Troubleshooting
227
Troubleshooting for the Radar
227
Replacement of Major Parts
231
Adjustment and Setting
236
NSK Unit Adjustment
236
Adjustment and Setting at Installation
239
Adjusting Tuning
239
Adjusting Bearing
240
Adjusting Range
241
Setting Antenna Height
242
Various Setting
243
Setting Own Ship Speed Equipment
243
Setting True Bearing
244
Setting Ship Speed
245
Setting Drift
246
Setting PRF
247
Setting Transmission Repetition Frequency
248
Connecting Navigation Equipment
249
Adjustment of the Performance Monitor Operation
251
GPS Initial Setting Receiving Status
252
GPS Initial Setting
252
Checking GPS Receiving Status
256
Setting DGPS
258
Checking DGPS Receiving Status
258
Maintenance Menu
261
Antenna Switch
261
Partial Master Reset
262
Total Master Reset
262
Internal Setting to Card 2
263
Card 2 to Internal Setting
263
User Memory
264
Restoring User Memory
264
Adjusting Position to Chart
266
Adjusting Video and Chart Using Trackball (R+P Mode)
266
Adjusting Video and Chart Position by Entering Adjustment Value (R+P and Plotter Modes)
267
Adjusting Position by Changing Latitude
268
Longitude Information
268
From GPS (R+P and Plotter Modes)
268
Adjusting Position by Fixing Own Ship at Screen Center
269
9 After-Sales Service
270
10 Disposal
273
Equipment Disposal
274
Disposal of Used Batteries
275
Disposal of Used Magnetron
276
11 Specification
277
General Specification JMA-7710-6
277
Jma-7725-6
277
Jma-7725-9
278
Scanner Unit NKE-1055-6
279
Scanner Unit NKE-1056-6M
280
Display Unit NCD-3901-2
281
ATA NCA-843 (Optional)
284
Inputable Signal
284
Outputable Signal
285
Standard Equipment Configuration
285
Installing Clearance between Equipment
285
Others (Optional)
285
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JRC JMA-7725-6 Specifications
General
Brand
JRC
Model
JMA-7725-6
Category
Marine Radar
Language
English
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