Japan Radio NKE2043 MARINE RADAR User Manual NKE2063UserMan

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Chapter 2 OPERATIONS
2.1 SCREEN DISPLAY
Chapter 2 OPERATIONS
2.1 SCREEN DISPLAY
INSTRUCTION MANUAL
2-1
Chapter 2 OPERATIONS
2.2 PANEL
2.2 PANEL
Operate this equipment with the panel of the Display unit.
No.
Key
ձ MENU
Description
Press:
Opens/closes the menu.
Hold down: Opens the code input screen (the Adjust Menu).
Press:
Cancels menu operations.
Returns to upper menu.
Stops the alarm sound.
ENT
Press:
Enters the selected menu item.
Cursor keys
Press:
Selects menu items. Moves the cursor.
Hold down: Accelerates cursor movement.
ղ CLEAR
ճ
մ GAIN
Press:
Performs the user key 1 function.
Hold down: Switches the sensitivity between manual and automatic
modes.
Turn:
Adjusts receiving sensitivity.
յ SEA
Press:
Performs the user key 2 function.
Hold down: Switches the sea clutter suppression function between
manual and automatic modes.
Turn:
Removes sea clutter.
ն RAIN
Press:
Performs the user key 3 function.
Hold down: Switches the rain/snow clutter suppression function
between manual and automatic modes.
Turn:
Removes rain/snow clutter.
շ RANGE
Press:
ո FUNC
Press:
Switches function settings.
Hold down: Opens the function setting menu.
չ BRILL
Press:
Changes the display brilliance
Hold down: Opens the display color menu.
պ MULTI
Press:
Turn:
ջ USB MEMORY
Saves files. Updates the software.
Switches the range.
Opens the soft key menu.
Adjusts the selected mode. Changes the setting values.
Selects soft key menu items.
Press:
ռ STBY
ս TX/PRF
վ Soft keys
2-2
Turns on this equipment (when it is turned off).
Turns to standby state (when the equipment is
transmitting).
Press multiple keys:
Turns off the equipment when pressed together with the
TX/PRF key.
Press:
Starts transmitting (in standby state)
Tunes the repetition frequency (when transmitting).
Hold down: Turns off the heading line. (after preheating finished).
Press:
Opens the soft key menu.
Chapter 2 OPERATIONS
2.2 PANEL
INSTRUCTION MANUAL
„ Key Operations
Press:
Press a key, then release the key before 2 seconds elapse.
Hold down:
Press a key, and hold down the key for 2 seconds or more.
Press multiple keys: Press multiple keys simultaneously.
Turn:
Turn a control in clockwise/counterclockwise direction.
2-3
Chapter 2 OPERATIONS
2.3 POWER ON/OFF
2.3 POWER ON/OFF
CAUTION
A malfunction may occur if the power in the ship is
instantaneously interrupted during operation of the radar. In
 this case, the power should be turned on again.
Note:
z Wait for about 2 seconds before turning on the power again.
z Immediately after the radar is installed, at start of the system after it has not
been used for a long time, or after the magnetron is replaced, preheat the
equipment in the standby state for 20 to 30 minutes before setting it into the
transmit state.
z If the preheating time is short, the magnetron causes sparks, resulting in its
unstable oscillation.
Start transmission on a short-pulse range and change the range to the longer
pulse ranges in turn. If the transmission is unstable in the meantime,
immediately place the system back into the standby state and maintain it in the
standby state for 5 to 10 minutes before restarting the operation. Repeat these
steps until the operation is stabilized.
„ Power On
1 Press the [STBY] key on the display unit to turn on the display unit.
The display unit is turned on, and the preheating time screen is displayed.
When the preheating time is over, the preheating time screen disappears.
2-4
Chapter 2 OPERATIONS
2.3 POWER ON/OFF
„ Starting transmission
1 Press the [TX/PRF] key.
The radar starts transmission and the antenna starts rotating.
Reference:
The radar cannot start transmission if you press the [TX/PRF] key while the preheating time
is displayed.
„ Stopping transmission
1 Press the [STBY] key on the display unit.
The radar stops transmission and the antenna stops rotating.
Maintain the standby state if radar observation is restarted in a relatively short time.
INSTRUCTION MANUAL
Only pressing the [TX/PRF] key starts observation.
„ Power Off
1 Press the [STBY] key and the [TX/PRF] key simultaneously.
The system is turned off.
WARNING
When conducting maintenance work, make sure to turn off the
power and unplug the power connector J1 of the display unit so
that the power supply to the equipment is completely cut off.
Some equipment components can carry electrical current even
after the power switch is turned off, and conducting maintenance
work without unplugging the power connector may result in
electrocution, equipment failure, or accidents.
2-5
Chapter 2 OPERATIONS
2.4 SENSITIVITY ADJUSTMENT
2.4 SENSITIVITY ADJUSTMENT
Sensitivity can be adjusted.
Adjust the noise on the display unit to achieve better observation state.
CAUTION
If sensitivity is set too high, unnecessary signals such as noises in
the receiver and false echoes increase to lower target visibility.
At the same time, if sensitivity is set too low, detection of targets
such as ships and dangerous objects may be hindered.
Therefore, sensitivity must always be set to an optimal level.
„ Noise Adjustment
1 Turn the [GAIN] control.
Turn the [GAIN] control clockwise to increase sensitivity.
Turn the [GAIN] control counterclockwise to decrease sensitivity.
The sensitivity adjustment screen appears when turning the [GAIN] control.
Sensitivity can be adjusted between 0 and 100.
When turning the [GAIN] control, the gain control indication is stretched or shrunk.
2-6
Chapter 2 OPERATIONS
2.4 SENSITIVITY ADJUSTMENT
z [GAIN] Control
Turning the [GAIN] control clockwise increases receiving sensitivity and extends the
radar observation range. If the sensitivity is too high, the receiver noise increases
reducing the contrast between the targets and the background video. As a result, the
targets become obscure on the radar display. To observe densely crowded targets or
short-range targets, turn the [GAIN] control counterclockwise to reduce the sensitivity so
that the targets are easy to observe. However, be careful not to overlook important small
targets.
„ Switching to Manual/Automatic Mode
1 Hold down the [GAIN] control.
The sensitivity can be switched between manual and automatic modes.
2-7
INSTRUCTION MANUAL
The mode is indicated as shown below.
Chapter 2 OPERATIONS
2.5 SEA CLUTTER SUPPRESSION
2.5 SEA CLUTTER SUPPRESSION
The sea clutter suppression function suppresses sea clutter returns.
CAUTION
When using the sea clutter suppression function, never set the
suppression level too high canceling out all image noises from the
sea surface at close range. Detection of not only echoes from
waves but also targets such as other ships or dangerous objects
will become inhibited.
When using the sea clutter suppression function, make sure to
choose the most appropriate image noise suppression level.
„ Manual Sea Clutter Suppression Function
Adjust the sea clutter returns on the display unit to achieve better observation state.
1 Turn the [SEA] control.
Turn the [SEA] control clockwise to suppress sea clutter returns.
Turn the [SEA] control counterclockwise to intensify sea clutter returns.
The sea clutter suppression adjustment screen appears when turning the [SEA] control.
Sea clutter suppression can be adjusted between 0 and 100.
When turning the [SEA] control, the sea clutter control indication is stretched or
shrunk.
2-8
Chapter 2 OPERATIONS
2.5 SEA CLUTTER SUPPRESSION
z [SEA] Control
The sea clutter suppression function suppresses sea clutter returns by decreasing the
receiving sensitivity on a short range. Turn the [SEA] control clockwise to heighten the
effect of sea clutter suppression. However, be careful that excessive suppression causes
low signal-strength targets such as buoys and boats to disappear from the radar display.
„ Automatic Sea Clutter Suppression Function
Sea clutter suppression can be performed in accordance with the level of sea clutter. Use
this automatic mode when sea clutter returns vary in direction.
1 Hold down the [SEA] control.
Automatic function is selected.
Even when the automatic function is selected, you can manually perform fine
adjustments by turning the [SEA] control.
INSTRUCTION MANUAL
The sea clutter suppression adjustment screen appears when turning the [SEA]
control. Sea clutter suppression can be adjusted between 0 and 100.
When the sea clutter suppression (Auto) is set to "0"
When the sea clutter suppression (Auto) is set to "10"
2-9
Chapter 2 OPERATIONS
2.5 SEA CLUTTER SUPPRESSION
„ Canceling Automatic Sea Clutter Suppression Function
1 Hold down the [SEA] control.
Automatic function is canceled.
The mode is indicated as shown below.
Reference:
When the automatic mode is selected for the sea clutter suppression function, the
rain/snow clutter suppression function is switched to the manual mode.
The sea clutter suppression function (Auto) and the rain/snow clutter suppression function
(Auto) cannot be selected at the same time.
2-10
Chapter 2 OPERATIONS
2.6 RAIN/SNOW CLUTTER SUPPRESSION
2.6 RAIN/SNOW CLUTTER SUPPRESSION
This function suppresses rain/snow clutter returns.
CAUTION
When using the sea clutter suppression function, never set the
suppression level too high canceling out all image noises from the
rain or snow at close range. Detection of not only echoes from the
rain or snow but also targets such as other ships or dangerous
objects will become inhibited.
When using the sea clutter suppression function, make sure to
choose the most appropriate image noise suppression level.
„ Manual Rain/Snow Clutter Suppression Function
Adjust the rain/snow clutter returns on the display unit to achieve better observation state.
1 Turn the [RAIN] control.
Turn the [RAIN] control clockwise to suppress rain/snow clutter returns.
Turn the [RAIN] control counterclockwise to intensify rain/snow clutter returns.
The rain/snow clutter suppression adjustment screen appears when turning the [RAIN]
control.
Rain/snow clutter suppression can be adjusted between 0 and 100.
When turning the [RAIN] control, the rain/snow clutter control indication is stretched
or shrunk.
2-11
INSTRUCTION MANUAL
Chapter 2 OPERATIONS
2.6 RAIN/SNOW CLUTTER SUPPRESSION
z [RAIN] Control
When the [RAIN] control is turned clockwise, targets hidden by rain/snow clutter returns
appear on the radar display. However, be careful that excessive suppression may cause
small targets to be overlooked. Since the rain/snow clutter suppression function also has
the effect of suppressing sea clutter, the suppression efficiency improves when using
with the [SEA] control. In general, set the value to "0".
„ Automatic Rain/Snow Clutter Suppression Function
Rain/snow clutter suppression can be performed in accordance with the level of
rain/snow clutter. Use this automatic mode when rain/snow clutter returns vary in
direction.
1 Hold down the [RAIN] control.
Automatic function is selected.
Even when the automatic function is selected, you can manually perform fine
adjustments by turning the [RAIN] control.
The rain/snow clutter suppression adjustment screen appears when turning the
[RAIN] control. Rain/snow clutter suppression can be adjusted between 0 and 100.
When the rain/snow clutter suppression (Auto) is set to "0"
When the rain/snow clutter suppression (Auto) is set to "10"
2-12
Chapter 2 OPERATIONS
2.6 RAIN/SNOW CLUTTER SUPPRESSION
„ Switching to Manual/Automatic Mode
1 Hold down the [RAIN] control.
Automatic function is canceled.
The mode is indicated as shown below.
Reference:
When the automatic mode is selected for the rain/snow clutter suppression function, the
sea clutter suppression function is switched to the manual mode.
The sea clutter suppression function (Auto) and the rain/snow clutter suppression function
INSTRUCTION MANUAL
(Auto) cannot be selected at the same time.
2-13
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2.7 SOFT KEY OPERATION
This radar can be operated with the soft keys and the MULTI control placed on the front
panel of the display unit. You can access to functions without opening the menu screen.
To change the default settings, press the [MENU] key to open the menu screen.
This section describes the operation with the soft keys and the MULTI control.
„ Keys for operation
y Soft keys 1, 2, 3 and 4
y [MULTI] control
y [CLEAR] key
„ Soft Key Operations (Example: Opening "Display Screen")
This section describes how to operate with the soft keys shown below.
y TUNE/PRF
y Display Screen
y TM/RM
y Bearing Mode
y Pulse Length
y Off Center
y Symbol Display
y MOB
y Mark
y Line
y Own Track
y Event Mark
y AIS Filter
y TLL TX
2-14
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
1 Press the [[MULTI] control.
Press the [MULTI] control.
Display Screen
on the soft key menu.
"Display Screen" is
color-inverted.
Reference:
When a certain time elapses without any key operation after selecting an item on the soft
key menu, the soft key menu and the soft key display automatically disappear.
2-15
INSTRUCTION MANUAL
2 Turn the [MULTI] control to select
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
z Turning the [MULTI] control clockwise
To select "Own Track" - "TLL TX"
"Event Mark" is color-inverted.
‫ۂ‬
"Own Track" is color-inverted.
"TLL TX" is color-inverted.
"AIS Filter" is color-inverted.
Reference:
When the item at the bottom of the soft key menu is color-inverted, the soft key menu does
not scroll any more even if the control is turned clockwise.
2-16
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
z Turning the [MULTI] control counterclockwise
To select "VRM2" - "EBL1"
"VRM1" is color-inverted.
‫ۂ‬
INSTRUCTION MANUAL
"VRM2" is color-inverted.
"EBL1" is color-inverted.
"EBL2" is color-inverted.
Reference:
When the item at the top of the soft key menu is color-inverted, the soft key menu does not
scroll any more even if the control is turned counterclockwise.
2-17
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
z Soft key 1
"Screen 1" is color-inverted.
Press the [soft key 1].
The screen changes to the layout set in the section "4.13.7 LOCATION CHANGE" "1. Screen1".
z Soft key 2
"Screen 2" is color-inverted.
Press the [soft key 2].
The screen changes to the layout set in the section "4.13.7 LOCATION CHANGE" "2. Screen2".
2-18
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
z Soft key 4
"Numerical INFO" is color-inverted.
Press the [soft key 4].
Each time you press the soft key 4 when "Numerical INFO" is set, the soft key display
toggles in the following order:
"Numerical INFO"  "TT Detail"  "AIS Detail"  "Own AIS INFO"
 "MOB INFO".
z Closing the soft key menu
Press the [CLEAR] key to turn off the soft key menu and the soft key display.
z Soft keys 1, 2, 3 and 4
Press any of the soft keys.
If any of the soft keys is pressed when the soft key menu is turned off, the soft
key menu and the soft key display which were displayed previously appear
again.
2-19
INSTRUCTION MANUAL
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
„ "Soft key Operations (Example: Opening "Brilliance")
This section describes how to operate with the soft keys shown below.
y EBL1
y EBL2
y VRM1
y VRM2
y Parallel Cursor
y Vector Length
y RADAR Trails
y AIS
y TT
y Alarm1
y Alarm2
y Brilliance
1 Press a soft key.
Press the [MULTI] control.
2 Turn the [MULTI] control to select
Brilliance
on the soft key menu.
Select "Brilliance" and
 press the control.
The soft key menu disappears and "Monitor BRILL" of the soft key display is
color-inverted.
"Brilliance" is activated.
2-20
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
Reference:
Perform the same operations for the other soft key menu items to activate the functions.
z Soft key 1
"Monitor BRILL" is color-inverted.
Press the [soft key 1].
When the soft key 1 is pressed, the display color is switched.
"Monitor BRILL" is color-inverted.
Press the [soft key 2].
"Monitor BRILL" is color-inverted, and is activated.
Press the [BRILL] key to adjust at eight levels.
Also, you can turn the [MULTI] control to change the level.
z Setting with the soft key menu
To determine the setting of the soft key menu item, press one of the followings:
y [Multi] control
y [CLEAR] key
The soft key menu item is determined, then the soft key menu and the soft key display
are turned off and the setting is finished.
2-21
INSTRUCTION MANUAL
z Soft key 2
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
z Soft keys 1, 2, 3 and 4
Press any of the soft keys.
If any of the soft keys is pressed when the soft key menu is turned off, the soft
key menu and the soft key display which were displayed previously appear again,
and the function is activated.
2.7.1
MEASURING TARGET BEARING (EBL)
Measures bearing with EBLs (Electronic Bearing Lines).
1 Select
EBL1
EBL2
on the soft key menu.
Select "EBL1" and press the control.
When "EBL1" is selected, the soft key menu is turned off and "BRG Operation" of
the soft key display is color-inverted.
"EBL1" is activated.
Select "EBL2" and press the control.
When "EBL2" is selected, the soft key menu is turned off and "BRG Operation" of
the soft key display is color-inverted.
"EBL2" is activated.
2-22
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2 Operate with the soft keys.
Soft key 1:
Display Off
Display
"Display Off": "EBL1"/"EBL2" is not displayed.
"Display":
"EBL1"/"EBL2" is displayed.
Reference:
When "Display Off" is selected for the soft key 1, the equipment performs the followings:
y EBL is not displayed.
y The soft key menu and the soft key display disappears, and EBL function is terminated.
Soft key 2:
Floating
When pressing the soft key 2, "Floating" is color-inverted.
The starting point of the currently operating EBL can be switched from the
center of the radar display (floating off) to floating state.
Press the cursor keys to move the starting point of "EBL1"/"EBL2".
INSTRUCTION MANUAL
Press the [ENT] key at the starting point of "EBL1"/"EBL2" you want to move.
The starting point of "EBL1"/"EBL2" is determined.
Reference:
The floating position of the EBL’s starting point can be fixed on the radar display or at
specific latitude and longitude.
Floating function must be turned on to use floating.
For details of settings, refer to "2.11.1 SETTING OPERATIONS FOR EBLS
(ELECTRONIC BEARING LINES)".
Soft key 3:
True
Relative
Sets whether to display EBLs (Electronic Bearing Lines) in true bearing mode or
relative bearing mode.
"True":
"EBL1"/"EBL2" is displayed in true bearing mode.
"Relative":
"EBL1"/"EBL2" is displayed in relative bearing mode.
Reference:
Bearing signal input is required to display true motion.
2-23
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
Soft key 4:
BRG Operation
When "EBL1" or "EBL2" of the soft key menu is selected, "BRG Operation" of
the soft key display is color-inverted.
Turn the [MULTI] control to change the direction of "EBL1"/"EBL2".
To determine the setting of "EBL1"/"EBL2", press one of the followings: the
[MULTI] control, the soft key 4 or the [CLEAR] key.
The bearing is set and operation state ends.
Reference:
When "EBL1"/"EBL2" is not selected on the soft key menu, press the soft key 4 to activate
the EBL function.
„ EBL Bearing Display
The bearing values of EBL1 and EBL2 displayed on the PPI are indicated at the radar
display.
Even if EBL1 and EBL2 are not displayed, the bearing values are displayed.
2.7.2
MEASURING RANGE TO TARGET (VRM)
Measures the range with VRM (Variable Range Marker).
1 Select
VRM1
VRM2
on the soft key menu.
Select "VRM1" and press the control.
When "VRM1" is selected, the soft key menu is turned off and "DIST Operation" of
the soft key display is color-inverted.
"VRM1" is activated.
2-24
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
Select "VRM2" and press the control.
When "VRM1" is selected, the soft key menu is turned off and "DIST Operation" of
the soft key display is color-inverted.
"VRM2" is activated.
2 Operate with the soft keys.
Soft key 1:
Display Off
Display
"Display Off": "VRM1"/"VRM2" is not displayed.
"VRM1"/"VRM2" is displayed.
Reference:
When "Display Off" is selected for the soft key 1, the equipment performs the followings:
y VRM is not displayed.
y The soft key menu and the soft key display disappears, and VRM function is
terminated.
Soft key 2:
NM
km
sm
Selects units of "VRM1"/"VRM2" range.
Soft key 3: Not available
Soft key 4:
DIST Operation
When "VRM1" or "VRM2" of the soft key menu is selected, "DIST Operation" of
the soft key display is color-inverted.
Turn the [MULTI] control to operate "VRM1"/"VRM2".
Press the [MULTI] control, the soft key 4 or the [CLEAR] key to determine the
"VRM1" and "VRM2" settings. Distance is set and operation state ends.
Reference:
When "VRM1"/"VRM2" is not selected on the soft key menu, press the soft key 4 to
activate the VRM function.
2-25
INSTRUCTION MANUAL
"Display":
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
„ Variable Range Marker
VRM1 is represented as a broken line, and VRM2 as a dotted line. When EBL1 is
displayed, VRM1 marker appears on the EBL1. When EBL2 is displayed, VRM2 marker
appears on the EBL2.
If the starting point of an EBL is offset, the center of a VRM marker is positioned at the
starting point of the EBL.
2.7.3
DISPLAYING PARALLEL CURSORS
Displays parallel cursors.
1 Select
Parallel Cursor
on the soft key menu.
Select "Parallel Cursor" and press the control.
The soft key menu disappears and "BRG Operation" of the soft key display is
color-inverted.
"Parallel Cursor" is activated.
2-26
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2 Operate with the soft keys.
Soft key 1:
Display Off
Display
Displays/hides parallel cursors.
"Display Off": The parallel cursors are not displayed.
"Display":
The parallel cursors are displayed.
Reference:
When "Display Off" is selected for the soft key 1, the equipment performs the followings:
y "Parallel Cursor" is not displayed.
y The soft key menu and the soft key display disappears, and Parallel Cursor function is
terminated.
Soft key 2:
Floating
When pressing the soft key 2, "Floating" is color-inverted.
The starting point of the currently operating parallel cursor can be switched from
the center of the radar display (floating off) to floating state.
Press the [ENT] key at the starting point of "Parallel Cursor" you want to move.
The starting point of "Parallel Cursor" is determined.
Reference:
The floating position of the parallel cursor starting point can be fixed on the radar display or
at specific angle.
Floating function must be turned on to use floating.
For details of settings, see "2.11.2 SETTING OPERATIONS FOR PARALLEL
CURSORS".
2-27
INSTRUCTION MANUAL
Press the cursor keys to move the starting point of "Parallel Cursor".
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
Soft key 3:
True
Relative
Sets whether to display parallel cursors in true bearing mode or relative bearing
mode.
"True":
"Parallel Cursor" is displayed in true bearing mode.
"Relative": "Parallel Cursor" is displayed in relative bearing mode.
Reference:
Bearing signal input is required to display true motion.
Soft key 4:
Bearing
Interval
When "Parallel Cursor" of the soft key menu is selected, "BRG Operation" of the
soft key display is color-inverted.
When "Bearing" is displayed above the soft key 4
Turn the [MULTI] control to change the direction of "Parallel Cursor".
Press the soft key 4 to determine the bearing setting of "Parallel Cursor" for
length setting.
Length setting can be operated.
Press the [MULTI] control or the [CLEAR] key when you want to set the
bearing only. Bearing is set and operation state ends.
When "Interval" is displayed above the soft key 4
Turn the [MULTI] control to change the length of "Parallel Cursor".
Press the [MULTI] control, the soft key 4 or the [CLEAR] key to determine
the length setting of "Parallel Cursor". Length is set and operation state ends.
Reference:
When "Parallel Cursor" is not selected on the soft key menu, press the soft key 4 to
activate the Parallel Cursor function.
2-28
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2.7.4
SETTING VECTORS
Sets TT and AIS vectors.
Reference:
The bearing and speed signal input are required to display TT and AIS vectors.
1 Select
Vector Length
on the soft key menu.
Select "Vector Length" and press the control.
The soft key menu disappears and "Vector Length" of the soft key display is
color-inverted.
"Vector Length" is activated.
2 Operate with the soft keys.
Soft key 1:
True
Relative
Switches between true vector mode and relative vector mode.
Soft key 2: Not available
Soft key 3: Not available
Soft key 4:
Vector Length
When "Vector Length" of the soft key menu is selected, "Vector Length" of the
soft key display is color-inverted.
Vector time can be set in minutes in the range 1 to 60 min.
Turn the [MULTI] control to set the vector length.
Reference:
When "Vector Length" is not selected on the soft key menu, press the soft key 4 to activate
the Vector Length function.
2-29
INSTRUCTION MANUAL
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
„ Vector display
Note:
z When a target or own ship changes its course, or when a new target is
acquired, its vector may not reach a given level of accuracy until three minutes
or more has passed after such course change or target acquisition.
Even if three minutes or more has passed, the vector may include an error
depending upon the. tracking conditions.
A vector to represent a target's predicted position can presented in the True vector or
Relative vector mode. In each mode, a vector length can be freely changed for a time
interval of 1 to 60 minutes.
„ Vector Modes
z True Vector Mode
In the true vector mode, the direction of a target vector indicates the true course of the
target and its vector length is proportional to its speed.
In this mode, own ship's vector is displayed as shown below.
In this mode, the movements of other ships around own ship can be accurately and easily
monitored.
However, no CPA RING can appear in this mode.
Own ship䇻s position
HL
True vector
The relative vector is
not displayed
2-30
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
z Relative Vector Mode
The relative vector does not represent the true motion of the target, but its relative
relation with own ship. This means that a target with its relative vector directed to own
ship (passing through the CPA LIMIT ring) will be a dangerous target.
In the Relative Vector mode, it can be seen at a glance where the CPA LIMIT of the
dangerous target is.
HL
The true vector is
not displayed
CPA ring
Relative vector
Therefore, the TRUE/REL mode shall optionally be used for the purpose of observation:
the TRUE vector mode for grasping the true aspect of a target, and the REL vector mode
INSTRUCTION MANUAL
for grasping a target's closest point of approach (CPA).
„ Vector Length
The vector length of a target is proportional to its speed, and the vector time can be
switched in a range of 1 to 60 minutes.
The diagram below illustrates a vector length of a target for six minutes, and the tip of
the vector represents the target's position expected to reach six minutes later.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2.7.5
DISPLAYING OTHER SHIP'S TRACKS (RADAR
TRAILS)
Sets radar trails.
Other ships' movements and speeds can be monitored from the lengths and directions of
their trails, serving for collision avoidance.
1 Select
RADAR Trails
on the soft key menu.
Select "RADAR Trails" and press the control.
The soft key menu disappears and "Trails" of the soft key display is color-inverted.
"RADAR Trails" is activated.
2 Operate with the soft keys.
Soft key 1:
REF Level1
REF Level2
REF Level3
REF Level4
Selects a radar video level required for plotting radar trails.
"REF Level1" is the lowest level while "REF Level4" is the highest level.
y When radar trails are plotted with unwanted waves, change to a higher level.
y To thin radar trails, change to a higher level.
y If radar trails are plotted in snatches, change to a lower level.
Soft key 2:
Time/Cont Off
Time/Cont On
This function superimpose-displays time radar trails and continuous radar trails.
When "Time/Cont Off" is selected, this superimpose-display is disabled.
When "Time/Cont On" is selected, this superimpose-display is enabled.
Soft key 3:
True
Relative
Switches the radar trail display between true and relative motion trail modes.
True motion trails:
The system plots the absolute motion trails of a target, irrespective of
the own ship’s position.
The operator can easily judge the course and speed of the target.
The system does not plot the trails of land and other fixed targets.
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2.7 SOFT KEY OPERATION
Relative motion trails:
The system plots the trails of a target at a position relative to the own
ship.
The operator can easily judge whether the target is approaching the
own ship.
While the own ship is moving, the system also plots the trails when the
own ship is turning.
Reference:
True bearing signal input and speed signal input are required to display radar trails in true
motion trail mode.
Soft key 4:
Trails
When "RADAR Trails" of the soft key menu is selected, "Trails" of the soft key
display is color-inverted.
Turn the [MULTI] control to change the radar trail length.
Reference:
When "RADAR Trails" is not selected on the soft key menu, press the soft key 4 to activate
the RADAR Trails function.
Short:
Off/15sec/30sec/1min/2min/3min/4min/5min/6min/10min/15min/All
Middle:
Off/30sec/1min/2min/3min/4min/5min/6min/10min/15min/All
Long:
Off/1min/2min/3min/4min/5min/6min/10min/15min/30min/1hr/All
Super Long:
Off/30min/1hr/2hr/3hr/4hr/5hr/6hr/10hr/12hr/24hr/All
To select the maximum time for displaying radar trails, see Section "2.10
RADAR TRAIL LENGTH SETTING")
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2.7.6
AIS OPERATIONS
The AIS function shows the target's information on the radar display, using other ship's
information sent out from the AIS unit.
Reference:
y The inputs of heading, latitude/longitude and AIS signal are required to display AIS.
y For detail settings of AIS functions, see "2.15 SETTING TT/AIS".
1 Select
AIS
on the soft key menu.
Select "AIS" and press the control.
The soft key menu disappears and "Target Select" of the soft key display is
color-inverted.
"AIS" is activated.
2 Operate with the soft keys.
Soft key 1:
Numerical Data
"Numerical Data":
Retrieved Vessel
DEST Ship
The mode is set to AIS numerical data display selection
mode.
"Retrieved Vessel": The mode is set to AIS retrieved vessel selection mode.
"DEST Ship":
Soft key 2:
The mode is set to AIS destination ship selection mode
Setting/Release
AIS data display (numerical display, retrieved vessel and destination ship) can be
set/released.
Soft key 3:
AIS List
"AIS List":
AIS Number SEL
AIS list is displayed.
"AIS Number SEL": AIS list is not displayed.
Soft key 4:
Target Select
When "AIS" of the soft key menu is selected, "Target Select" of the soft key
display is color-inverted.
Sets the numerical display, retrieved vessel and destination ship.
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2.7 SOFT KEY OPERATION
Reference:
When "AIS" is not selected on the soft key menu, press the soft key 4 to activate the AIS
function.
„ AIS Retrieved Vessel
AIS retrieved vessel is the function to preferentially display the user-specified ship.
„ AIS Destination Ship
AIS destination ship is the function to display the user-specified ship as the destination.
„ AIS data (Numerical Data, Retrieved Vessel, DEST Ship)
z Displaying AIS data (Operation with the soft key menu)
1 Press the cursor keys to select "AIS", then press the [ENT] key.
y When "Numerical Data" is displayed above the soft key 1
INSTRUCTION MANUAL
y When "Retrieved Vessel" is displayed above the soft key 1
y When "DEST Ship" is displayed above the soft key 1
The specified target data is displayed and the symbol is changed.
The target data will remain on the radar display until the target is lost, or until
another target is designated.
Note:
z Numerical Data, AIS retrieved vessel and AIS destination ship can be operated
when
Soft key 1:
Numerical Data
Retrieved Vessel
DEST Ship
are selected.
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2.7 SOFT KEY OPERATION
z Displaying AIS data (Operation with the [ENT] key)
AIS data (numerical display) can be done by the [ENT] key operation without displaying
the soft key menu.
1 Press the cursor keys to select "AIS", then press the [ENT] key.
The selected AIS numerical display is set, and the "AIS" soft key is displayed.
Note:
z If operating with the [ENT] key when the soft key menu is closed, the equipment
performs the followings:
On the AIS symbol: Opens the AIS soft key and the numerical display of AIS.
On the TT symbol: Opens the TT soft key and the numerical display of TT.
Not on the AIS or TT symbol:
Opens the TT soft key, it will be acquired.
z If operating with the [ENT] key when the AIS symbol overlaps the TT symbol,
the numerical display of AIS symbol takes priority.
Reference:
y After setting the AIS numerical display, perform the same operations in "‫ ە‬Displaying
AIS data (Operation with the soft key menu)".
y AIS data (numerical data) is displayed when the soft key 4 is set to "AIS Detail" in the
section "2.7.11 SETTING DISPLAY SCREEN".
z Releasing AIS data display
1 Press the cursor keys to select "AIS", then press the [ENT] key.
Numerical Data, AIS retrieved vessel and AIS destination ship are canceled.
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2.7 SOFT KEY OPERATION
„ Displaying the other AIS data
Reference:
y AIS retrieved vessel can be set by specifying MMSI number.
For details of settings, see "2.15.8 SETTING AIS RETRIEVED VESSEL".
y AIS destination ship can be set by specifying MMSI number.
For details of settings, see "2.15.7 SETTING AIS DESTINATION SHIP".
z Displaying AIS data
1 Turn the [MULTI] control to select "AIS", then press the soft key 3
"Setting/Release".
y When "Numerical Data" is displayed above the soft key 1
INSTRUCTION MANUAL
y When "Retrieved Vessel" is displayed above the soft key 1
y When "DEST Ship" is displayed above the soft key 1
The specified target data is displayed and the symbol is changed.
The target data will remain on the radar display until the target is lost, or until
another target is designated.
When the target for the numerical display is set, "#" is displayed in the AIS list.
"#" disappears when the target is released.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
When the AIS retrieved vessel is set, "*" is displayed in the AIS list.
"*" disappears when it is released.
When the AIS destination ship is set, "$" is displayed in the AIS list.
"$" disappears when it is released.
Reference:
AIS data (Numerical Data) is displayed when the soft key 4 is set to "AIS Detail" in the
section "2.7.11 SETTING DISPLAY SCREEN"
Note:
z Numerical Data, AIS retrieved vessel and AIS destination ship can be operated
when
Soft key 1:
Numerical Data
Retrieved Vessel
DEST Ship
are selected.
z Releasing AIS data display
1 Turn the [MULTI] control to select "AIS", then press the soft key 3
"Setting/Release".
Numerical Data, AIS retrieved vessel and AIS destination ship are canceled.
„ AIS Symbols
This section describes types and definitions of AIS symbols.
Symbol
Definition
Activated AIS target
Remarks
This symbol shows the position of an AIS target on the PPI.
The shape is an isosceles triangle, and its vertex shows the
approximate heading direction.
If heading bearing information or COG information is not
received, the target is displayed toward PPI.
Selection
When selecting an AIS target to display its numeric information,
this symbol is superimpose-displayed on the selected target.
This is displayed with a split square (basic color is white).
AIS SART
This symbol shows the position of an AIS SART target on the
PPI.
This is displayed with a circle and cross lines.
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2.7 SOFT KEY OPERATION
„ Setting AIS Symbol Display
For details of displaying/hiding of the AIS symbols, see Section "2.7.16 SETTING
SYMBOL ".
2.7.7
TT OPERATIONS
The target tracking function calculates the course and speed of a target by automatically
tracking the target's move.
Note:
z There are the following limitations on use of the target acquisition and target
tracking functions.
[I] Resolution between adjacent targets and swapping during automatic target
tracking
Depending on the particular distance and echo size, resolution between
adjacent targets during automatic target tracking usually ranges somewhere
between 0.03 to 0.05 NM. If multiple targets approach each other, resolution will
INSTRUCTION MANUAL
become about 0.05 NM and this may cause the system to regard them as one
target and thus to swap them or lose part of them. Such swapping or less of
targets may also occur if the picture of the target being tracked is affected by
rain/snow clutter returns or sea clutter returns or moves very close to land.
[II] Intensity of echoes and the target tracking function
The intensity of echoes and the tracking function have a correlationship, and
thus the target will be lost if no echoes are detected during seven scans in
succession.
If a lost target exists, therefore, radar gain must be increased to support
detection of the target. If, however, radar gain is increased too significantly, sea
clutter returns or other noise may be erroneously detected and tracked as a
target, and resultingly, a false alarm may be issued.
To execute accurate tracking, it becomes necessary to appropriately adjust the
[GAIN], [SEA] and [RAIN] controls of the radar so that the target to be acquired
and tracked id clearly displayed on the radar display.
Inappropriate settings of these adjustments reduce the reliability / accuracy of
automatic tracking.
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2.7 SOFT KEY OPERATION
CAUTION
Use the radar only as a navigation aid.
The final navigation decision must always be made by the operator
him/herself.
Making the final navigation decision based only on the radar
display may cause accidents such as collisions or running
aground.
Use the target tracking function (TT) only as a navigation aid. The
final navigation decision must always be made by the operator
him/herself.
Making the final navigation decision based only on the target
tracking function (TT) information may cause accidents.
The target tracking function (TT) information such as vector, target
numerical data, and alarms may contain some errors. Also, targets
that are not detected by the radar cannot be acquired or tracked.
Making the final navigation decision based only on the radar
display may cause accidents such as collisions or running
aground.
1 Select
TT
on the soft key menu.
"TT" is color-inverted.
The soft key menu disappears and "Target Select" of the soft key display is
color-inverted.
"TT" is activated.
2 Operate with the soft keys.
Soft key 1:
Numerical Data
"Numerical Data":
TT Acquisition
TT Release
The mode is set to TT numerical data display selection
mode.
"TT Acquisition":
The mode is set to TT acquisition selection mode.
"TT Release":
The mode is set to TT release selection mode
Soft key 2:
Setting/Release
Target tracking data (numerical display) can be set/released.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
Soft key 3:
TT List
"TT List":
TT Number SEL
TT list is displayed.
"TT Number SEL": TT list is not displayed.
Soft key 4:
Target Select
When "TT" of the soft key menu is selected, "Target Select" of the soft key
display is color-inverted.
Sets the numerical display, TT acquisition and TT release.
Reference:
When "TT" is not selected on the soft key menu, press the soft key 4 to activate the TT
function.
„ Target acquisition
This equipment has automatic acquisition and manual acquisition.
Note:
z Manual acquisition can be operated when
Soft key 1:
TT Acquisition
are selected.
z If the range is switched, the acquisitions of targets acquired before switching the
range are released when those targets get out of the echo radius.
1 Press the cursor keys to select the target for acquisition with the cursor, then
press the [ENT] key.
An initial acquisition symbol appears.
After one minute elapses, the target tracking symbol and vector are displayed.
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INSTRUCTION MANUAL
z Manual acquisition (Operation with the soft key menu)
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
Reference:
When the number of targets tracked has reached to the maximum (10 targets), any new
target is not acquired.
Delete the unnecessary targets, then acquire new targets.
z Manual acquisition (Operation with the [ENT] key)
Target can be acquired by the [ENT] key operation without displaying the soft key menu.
Note:
z If operating with the [ENT] key when the soft key menu is closed, the equipment
performs the followings:
On the AIS symbol: Opens the AIS soft key and the numerical display of AIS.
On the TT symbol: Opens the TT soft key and the numerical display of TT.
Not on the AIS or TT symbol:
Opens the TT soft key, it will be acquired.
z If operating with the [ENT] key when the AIS symbol overlaps the TT symbol,
the numerical display of AIS symbol takes priority.
1 Press the cursor keys to select the target for acquisition with the cursor, then
press the [ENT] key.
An initial acquisition symbol appears, and the "TT" soft key is displayed.
After one minute elapses, the target tracking symbol and vector are displayed.
Reference:
y When operating the [ENT] key on a TT symbol, the "TT" soft key and the target tracking
data are displayed.
y When operating the [ENT] key on an AIS symbol, the "AIS" soft key and the selected
AIS data (numerical display) are displayed.
z Automatic acquisition
1 Perform the procedure as shown below to start automatic acquisition.
Open
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Alarm1
from the soft key menu.
Soft key 1:
On
Soft key 2:
AZ1
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
Reference:
y If untracked targets intrude into the automatic acquisition area in the conditions that
maximum number of targets (10 targets) is under tracking, the targets acquired
automatically will be cancelled in the order of lower levels of danger.
y For details of automatic acquisition operation, refer to "2.7.8 DISPLAYING THE
RADAR ALARM AND AUTOMATIC ACQUISITION OPERATIONS".
„ Deleting the unnecessary targets
Note:
z Releasing manual acquisition can be operated when
Soft key 1:
TT Release
are selected.
1 Press the cursor keys to select the target for releasing with the cursor, then
INSTRUCTION MANUAL
press the [ENT] key.
The target's vectors and symbols disappear, and only the radar video remains.
„ Target tracking data (numerical display)
Note:
z The numerical display can be operated when
Soft key 1:
Numerical Data
are selected.
z Displaying tracking target data (Operation with the soft key menu)
1 Press the cursor keys to select the target for the numerical display with the
cursor, then press the [ENT] key.
The specified target data is displayed and the symbol is changed.
The target data will remain on the radar display until the target is lost and its vector
disappears, or until another target is designated.
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2.7 SOFT KEY OPERATION
Reference:
y If a target with the mark “‫ ”ۑ‬is designated, only its true bearing and range will appear
until its vector appears.
y Tracking target data is displayed when the soft key 4 is set to "TT Detail" in the section
"2.7.11 SETTING DISPLAY SCREEN"
z Displaying tracking target data (Operation with the [ENT] key)
The target tracking data can be displayed by the [ENT] key operation without displaying
the soft key menu.
Note:
z If operating with the [ENT] key when the soft key menu is closed, the equipment
performs the followings:
On the AIS symbol: Opens the AIS soft key and the numerical display of AIS.
On the TT symbol: Opens the TT soft key and the numerical display of TT.
Not on the AIS or TT symbol:
Opens the TT soft key, it will be acquired.
z If operating with the [ENT] key when the AIS symbol overlaps the TT symbol,
the numerical display of AIS symbol takes priority.
1 Press the cursor keys to select the target for numerical display with the
cursor, then press the [ENT] key.
The selected target tracking numerical display is set, and the "TT" soft key is
displayed.
Reference:
After setting the TT numerical display, perform the same operations in "‫ ە‬Displaying
tracking target data (Operation with the soft key menu)".
z Releasing tracking target data display
1 Press the cursor keys to select the target for the numerical display with the
cursor, then press the [ENT] key.
Numerical data display is released.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
„ Displaying the other tracking target data
Note:
z The numerical display can be operated when
Soft key 4:
Target Select
are selected.
z Displaying tracking target data
1 Turn the [MULTI] control to select the target for the numerical display, then
press the soft key 3 "Setting/Release".
The specified target data is displayed and the symbol is changed.
The target data will remain on the radar display until the target is lost and its vector
disappears, or until another target is designated.
When the target for the numerical display is set, "#" is displayed in the TT list.
"#" disappears when the target is released.
Reference:
y If a target with the mark “‫ ”ۑ‬is designated, only its true bearing and range will appear
until its vector appears.
y Tracking target data is displayed when the soft key 4 is set to "TT Detail" in the section
"2.7.11 SETTING DISPLAY SCREEN".
z Releasing tracking target data display
1 Turn the [MULTI] control to select the target for the numerical display, then
press the soft key 3 "Setting/Release".
Numerical data display is released.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
„ Target Tracking Symbols
This section describes types and definitions of target tracking symbols.
Symbol
Definition
Initial acquisition
Remarks
This symbol is displayed where the target is acquired.
This is displayed with a circle of thin dotted line (basic color is
white).
This symbol is also used for the target acquired automatically.
Tracking target
This symbol is displayed for the target which becomes the
tracking target after acquired.
This is displayed with a circle of thick line (basic color is white).
New tracking target
This symbol is displayed for the target which becomes the
tracking target after automatically acquired.
This is displayed with a circle of thick line (basic color is red).
This is changed to a normal tracking target when acknowledged
to new target alarm.
Dangerous target
This symbol is displayed when the tracking target becomes a
dangerous target with CPA/TCPA decision.
This is displayed with a circle of thick line (basic color is red).
This blinks while this is not acknowledged. Then, it stops
blinking when it is acknowledged.
When there are some dangerous targets, targets which is not
acknowledged blinks, and targets which has been acknowledged
does not blink.
Lost
When a tracking target is no longer detected as a target, this
symbol is superimpose-displayed on the target symbol.
This is displayed with cross lines (basic color is red).
This is superimpose-displayed on tracking targets, new tracking
targets or dangerous targets.
Selection
When selecting a tracking target to display its numeric
information, this symbol is superimpose-displayed on the
selected target.
This is displayed with a split square (basic color is white).
This is superimpose-displayed on tracking targets, new tracking
targets or dangerous targets.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
„ Setting Tracking Target Symbol Display
For details of displaying/hiding of the tracking target symbols, see Section "2.7.16
SETTING SYMBOL ".
DISPLAYING THE RADAR ALARM AND AUTOMATIC
ACQUISITION OPERATIONS
With a fan-shaped range made, the radar alarm can give an alarm to ships that enter or
depart from the range.
1 Select
Alarm1
Alarm2
on the soft key menu.
"Alarm1" is color-inverted.
The soft key menu disappears and "Make Zone" of the soft key display is
color-inverted.
"Alarm1" is activated.
"Alarm2" is color-inverted.
The soft key menu disappears and "Make Zone" of the soft key display is
color-inverted.
"Alarm2" is activated.
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2.7.8
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2 Operate with the soft keys.
Soft key 1:
When Alarm1 is selected
Off
On
When Alarm2 is selected
Off
On
Turns on/off the alarm display.
Soft key 2:
When Alarm1 is selected
Sector
Rectangle
AZ1
When Alarm2 is selected
Sector
Rectangle
AZ2
"Sector":
 Displays a fan-shaped radar alarm.
"Rectangle":
 Displays a rectangle-shaped radar alarm.
"AZ1" "AZ2":
 Displays the acquisition area.
Soft key 3:
When Alarm1 is selected
In
Out
When Alarm2 is selected
In
Out
Sets the alarm issuing conditions for the radar alarm.
"In":
An alarm is issued when ship enters.
"Out": An alarm is issued when ship departs.
Soft key 4:
When Alarm1 is selected
Make Zone
When Alarm2 is selected
Make Zone
"Make Zone" "Make Zone":
When "Make Zone" of the soft key menu is selected, "Target
Select" of the soft key display is color-inverted.
Reference:
When "Alarm1"/"Alarm2" is not selected on the soft key menu, press the soft key 4 to
activate the Alarm1/Alarm2 function.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
„ Automatic acquisition operations
Reference:
If untracked targets intrude into the acquisition area in the conditions that maximum
number of targets (10 targets) is under tracking, the targets acquired automatically will be
cancelled in the order of lower levels of danger.
z Turning on the automatic acquisition
1 Perform the following settings.
Soft key 1:
When Alarm1 is selected
On
When Alarm2 is selected
On
Soft key 2:
When Alarm1 is selected
AZ1
When Alarm2 is selected
INSTRUCTION MANUAL
AZ2
The acquisition area is activated.
An initial acquisition symbol appears for an acquired target.
After one minute elapses, the target tracking symbol is displayed.
z Turning off the automatic acquisition
1 Perform the following settings.
Soft key 1:
When Alarm1 is selected
Off
When Alarm2 is selected
Off
The acquisition area is deactivated.
The acquisition area disappears from the radar screen, however, the tracking target
which has been already acquired are continued to be tracked.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
„ Creating a fan-shaped radar alarm/acquisition area
1 Perform the following settings.
Soft key 2:
When Alarm1 is selected
Sector
AZ1
When Alarm2 is selected
Sector
AZ2
The range setting is started for a fan-shaped radar alarm/acquisition area.
2 Press the cursor keys to move the cursor to the first point (setting of the start
bearing and range), then press the [ENT] key.
3 Press the cursor keys to move the cursor to the second point (setting of the
end range), then press the [ENT] key.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
4 Press the cursor keys to move the cursor to the third point (setting of the end
bearing), then press the [ENT] key.
5 A fan-shaped radar alarm/acquisition area is determined.
Reference:
After the fan-shaped radar alarm/acquisition area is determined, the soft key menu and the
soft key display disappears, and Alarm1 function is terminated.
„ Creating a rectangle-shaped radar alarm
1 Perform the following settings.
Soft key 2:
When Alarm1 is selected
Rectangle
When Alarm2 is selected
Rectangle
The range setting is started for a rectangle-shaped radar alarm.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2 Press the cursor keys to move the cursor to the first point (setting of the start
latitude and longitude), then press the [ENT] key.
3 Press the cursor keys to move the cursor to the second point (setting of the
end latitude), then press the [ENT] key.
4 Press the cursor keys to move the cursor to the third point (setting of the end
latitude), then press the [ENT] key.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
5 Rectangle-shaped area
Rectangle-shaped area is set with Nup as reference.
Reference:
After the fan-shaped radar alarm/acquisition area is determined, the soft key menu and the
soft key display disappears, and Alarm1 function is terminated.
SETTING DISPLAY BRILLIANCE AND DISPLAY
COLOR
Display brilliance and display color can be changed.
1 Select
Brilliance
on the soft key menu.
"Brilliance" is color-inverted.
The soft key menu disappears and "Monitor BRILL" of the soft key display is
color-inverted.
"Brilliance" is activated.
2 Operate with the soft keys.
Soft key 1:
Day1
Day2
Day3
Dusk
Night
Display color is changed in accordance with the setting of "Main Menu" "Display Color".
Each time the soft key 1 is pressed when "Day1" is displayed above the soft key
1, the setting changes in order of "Day2"  "Day3"  "Dusk"  "Night".
If "Main Menu" - "Display Color" - "Day1" - "Soft Key" is set to "Off", "Day1"
is not displayed above the soft key 1.
Operate the same way for "Day2", "Day3", "Dusk" and "Night".
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INSTRUCTION MANUAL
2.7.9
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
Soft key 2:
Monitor BRILL
When "Brilliance" of the soft key menu is selected, "Monitor BRILL" of the soft
key display is color-inverted.
Press the [BRILL] key to adjust at eight levels.
Also, you can turn the [MULTI] control to change the level.
Soft key 3: Not available
Soft key 4: Not available
Reference:
When "Brilliance" is not selected on the soft key menu, press the soft key 4 to activate the
Brilliance function.
2.7.10 ADJUSTING SCANNER
There are automatic tuning mode (AUTO) and manual tuning mode (MAN). In the
automatic tuning mode, transmission and receiving frequencies are tuned and adjusted
automatically. In the manual tuning mode, tuning is carried out using the MULTI
control.
1 Select
TUNE/PRF
on the soft key menu.
"TUNE/PRF" is color-inverted.
The "TUNE/PRF" soft key display appears.
2 Operate with the soft keys.
Soft key 1:
AUTO Tune
Manual Tune
Selects whether to use the tuning function in automatic or manual mode.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
Soft key 2:
Manual Tuning
When pressing the soft key 2, "Manual Tuning" is color-inverted.
y When "MAN" is displayed above the soft key 1
You can manually adjust using the MULTI control.
Tune indicator bar
Turn the MULTI control to adjust tuning.
Adjust the video to be the largest by observing the tune indicator bar.
Because the tune indicator bar is the guide during manual tuning, adjust the
tune indicator bar to the maximum.
y When "AUTO" is displayed above the soft key 1
"Manual Tuning" is not color-inverted. The equipment automatically adjust
tuning. Tuning is adjusted when transmission is started, the range is changed
or pulse length is changed.
PRF Fine Tuning
When pressing the soft key 3, "PRF Fine Tuning" is color-inverted.
The PRF fine tuning screen appears.
Fine-tune the transmitting repetition frequency of the transmitter in the range 90
to 100%.
If radar's interference patterns are concentrically displayed, increment or
decrement the set value by 3 to 4 in order to heighten the effect of interference
rejection.
The same operation can be performed by pressing the [TX/PRF] key several
times.
Use the [MULTI] control to perform PRF fine tuning between 0 and 31.
When the soft key 3 "PRF Fine Tuning" is pressed, color-inverted display returns
to normal color.
Soft key 4: Not available
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INSTRUCTION MANUAL
Soft key 3:
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2.7.11 SETTING DISPLAY SCREEN
Sets the layout of radar screen.
1 Select
Display Screen
on the soft key menu.
"Display Screen" is color-inverted.
The "Display Screen" soft key display appears.
2 Operate with the soft keys.
Soft key 1:
Screen1
The screen changes to the layout set with the menu "Adjust Menu" - "Display
Screen" - "Location Change" - "Screen1".
Soft key 2:
Screen2
The screen changes to the layout set with the menu "Adjust Menu" - "Display
Screen" - "Location Change" - "Screen2".
Soft key 3: Not available
Soft key 4:
Numerical INFO
TT Detail
AIS Detail
Own AIS INFO
MOB INFO
Each time you press the soft key 4 when "Numerical INFO" is set, the soft key
display toggles in the following order:
"Numerical INFO"  "TT Detail"  "AIS Detail"  "Own AIS INFO"
 "MOB INFO".
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
„ Numerical INFO
If "Screen1" has been set in the menu
When "Numerical INFO" is displayed above the soft key 4, "Numerical INFO" which
has been set in the menu "Screen 1" is displayed.
Numerical INFO
If "Screen2" has been set in the menu
When "Numerical INFO" is displayed above the soft key 4, "Numerical INFO" which
has been set in the menu "Screen 2" is displayed.
Numerical INFO
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INSTRUCTION MANUAL
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
„ TT Detail
When "Numerical INFO" is displayed above the soft key 4, press the soft key 4 to
display "TT Detail" on the radar screen.
TT Detail
„ AIS Detail
When "TT Detail" is displayed above the soft key 4, press the soft key 4 to display "AIS
Detail" on the radar screen.
AIS Detail
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
„ Own AIS INFO
When "AIS Detail" is displayed above the soft key 4, press the soft key 4 to display
"Own AIS INFO" on the radar screen.
„ MOB INFO
Own AIS INFO
When "Own AIS INFO" is displayed above the soft key 4, press the soft key 4 to display
"MOB INFO" on the radar screen.
MOB INFO
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INSTRUCTION MANUAL
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
„ Hiding the heading line
1 Hold down the [TX/PRF] key.
The ship's heading line is hidden while the [TX/PRF] key is held down.
The ship's heading line (HL) that presents the course of own ship is always shown on
the radar display.
The heading line is hidden while the [TX/PRF] key is held down, so the targets on
the heading line can be easily observed.
2.7.12 SWITCHING TO TRUE/RELATIVE MOTION DISPLAY
MODE
Switches between true and relative motion display modes.
Reference:
The bearing signal input is required to display true motion.
1 Select
TM/RM
on the soft key menu.
"TM/RM" is color-inverted.
The "TM/RM" soft key display appears.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2 Operate with the soft keys.
Soft key 1:
RM
Press the soft key 1 to switch to relative motion display.
Own ship returns to the center of the radar screen.
Soft key 2:
TM
Press the soft key 2 to switch to true motion display.
Soft key 3:
TM Reset
Press the soft key 3 during the true motion display mode, the own ship position is
reset, as same as switching from relative motion display to true motion display.
Own ship starts from the reset position.
Soft key 4: Not available
„ True motion display
In the true motion display mode, the own ship's position on the radar screen moves
depending upon its speed and course and the influence of the current. Land and other
fixed targets are fixed on the radar screen and only actually moving targets move on the
set to 66% of the display radius in the opposite direction to its course allowing for the
influence of the current. Own ship starts moving depending upon its speed and course
and the influence of the current. Subsequently, when own ship arrives at the position of
66% of the display radius, it is automatically reset to its initial position at 66% of the
display radius in the opposite direction to its course allowing for the influence of the
current.
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INSTRUCTION MANUAL
radar screen. When the true motion display mode is selected, the own ship's position is
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2.7.13 SWITCHING BEARING DISPLAY MODE
Selects the azimuth of the radar video.
Reference:
The bearing signal input is required to display N Up/C Up.
1 Select
Bearing Mode
on the soft key menu.
"Bearing Mode" is color-inverted.
The "Bearing Mode" soft key display appears.
2 Operate with the soft keys.
Soft key 1:
H Up
Relative bearing mode [Head Up] is selected.
Soft key 2:
N Up
True bearing mode [North Up] is selected.
Soft key 3:
C Up
Course-up bearing mode [Course Up] is selected.
Soft key 4:
C Up Reset
In Course-up mode, reset the course-up display.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
„ Relative Bearing Mode
The video is displayed so that the ship's heading line points to the zenith of the PPI (0°
on range rings).
Since targets are displayed in their directions relative to the ship's heading line, the
operator can view the video in the same field of view as in operating the ship at sea. This
mode is suitable for watching over other ships.
The video is displayed so that the zenith of the PPI (0° on range rings) points to the due
north.
Fixed targets do not flicker and are easily identified on the chart, and the true bearing of
a target can easily be read out.
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INSTRUCTION MANUAL
„ True Bearing Mode
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
„ Course-up Bearing Mode
By pressing the soft key 3, the own ship's course is fixed pointing to the zenith of the PPI
(0° on range rings) points to the due north. In the same way as in the North-up mode,
fixed targets do not flicker, and are stabilized even if the ship is yawing. The bearing of
the heading line varies by the same shift of own ship's course. To change the course,
press the soft key 3 several times to select the Course-up mode, and set a new course.
2.7.14 SELECTING TRANSMITTER PULSE LENGTH
Switches the transmitter pulse length.
1 Select
Pulse Length
on the soft key menu.
"Pulse Length" is color-inverted.
The "Pulse Length" soft key display appears.
2 Operate with the soft keys.
Soft key 1:
SP
MP1
MP2
LP1
LP2
The transmitter pulse length is switched.
Press the soft key 1 to change the setting in order of:
 "SP"  "MP1"  "MP2"  "LP1"  "LP2".
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
Reference:
Options of the transmitter pulse length vary depending on the range.
For details, see "7.2 SCANNER".
Soft key 2: Not available
Soft key 3: Not available
Soft key 4: Not available
„ Effects of transmitter pulse length
z SP :
The transmitter pulse length becomes shorter, and the range resolution improves.
The effect of suppressing sea clutter returns and rain/snow clutter returns heightens.
Recommended condition for selection:
In bays / harbors where targets are densely crowded
Rough sea state due to torrential rain or stormy weather
z MP :
INSTRUCTION MANUAL
The normal transmitter pulse length is set.
Both range resolution and sensitivity are appropriately set.
Recommended condition for selection:
General navigation
z LP :
The transmitter pulse length becomes longer, and sensitivity improves.
Small targets are zoomed and are easy to observe.
When the sea state is bad, detection performance decreases.
Recommended condition for selection:
Detection of small targets in good weather conditions
Usable transmitter pulse length varies according to the type of scanner unit being used
and the observation range being used. For usable pulse length, see the section
"SCANNER" in "SPECIFICATIONS".
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2.7.15 MOVING OWN SHIP’S DISPLAY POSITION
The own ship's position can be moved from the display center to any position within
66% of the display radius.
This function is convenient for observing a wide coverage in any direction.
1 Select
Off Center
on the soft key menu.
"Off Center" is color-inverted.
The "Off Center" soft key display appears.
2 Operate with the soft keys.
Soft key 1:
Off
On
Turns on/off the off center function.
 "Off":
The own ship's position returns to the center.
 "On":
The cross cursor mark + will appear at the own ship's position on
the radar screen.
Soft key 2:
Off Center1
Off Center2
Off Center3
Custom
Load Position
 "Off Center1": The own ship's position is moved to 66% position of the
display radius.
 "Off Center2": Te own ship's position is moved to 44% position of the
display radius.
 "Off Center3": The own ship's position is moved to 22% position of the
display radius.
 "Custom":
The own ship's position can be moved to any position.
When pressing the soft key 4, "Edit" is color-inverted.
Move the cross cursor mark + (own ship’s display position) to a
desired position by using the cursor keys.
Press the ENT key to fix the own ship’s display position at the cross
cursor mark + position.
 "Load Position": The saved own ship’s display position is displayed.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
Soft key 3:
Save Position
When "Custom" is displayed above the soft key 2, press the soft key 3 to save the
current own ship’s display position.
Soft key 4:
Edit
When "Custom" is displayed above the soft key 2, press the soft key 4 to move
the own ship’s display position to any position.
2.7.16 SETTING SYMBOL DISPLAY
Displays/hides the following functions.
y TT
y AIS
y Marks/lines
y Own track
Symbol Display
on the soft key menu.
"Symbol Display" is color-inverted.
The "Symbol Display" soft key display appears.
2 Operate with the soft keys.
Soft key 1:
TT Display
TT Display Off
"TT Display":
The TT symbols are displayed.
"TT Display Off":
The TT symbols are hidden.
However, the dangerous targets are shown.
Soft key 2:
AIS Display
AIS Display Off
"AIS Display":
The AIS symbols are displayed.
"AIS Display Off":
The AIS symbols are hidden.
Soft key 3:
Mark Display
Mark DISP Off
"Mark Display":
The marks and lines are displayed.
"Mark DISP Off":
The marks and lines are hidden.
Soft key 4:
Track Display
Track DISP Off
"Track Display":
The own track is displayed.
"Track DISP Off":
The own track is hidden.
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INSTRUCTION MANUAL
1 Select
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2.7.17 SETTING MOB
MOB is the mark of a person or an object overboard. If someone or something falls
overboard, set MOB to memorize the latitude/longitude of the location and display the
mark. Also, a straight line from the own ship to the mark is displayed.
Reference:
Bearing signal input and latitude/longitude data input are required to display MOB.
1 Select
MOB
on the soft key menu.
"MOB" is color-inverted.
The "MOB" soft key display appears.
2 Operate with the soft keys.
Soft key 1:
MOB Setting
Sets the MOB at the own ship's position.
Soft key 2:
MOB Release
The displayed MOB is cleared.
Soft key 3: Not available
Soft key 4: Not available
2.7.18 MARKING
Marks can be indicated at arbitrary positions on the screen.
A mark created on the screen holds the latitude and longitude.
Reference:
y Bearing signal input and latitude/longitude data input are required to use marks.
y Up to 200 lines/marks can be displayed for lines, marks and event marks in total.
y When the marks are hidden in "2.7.16 SETTING SYMBOL DISPLAY", marks cannot
be created.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
1 Select
Mark
on the soft key menu.
"Mark" is color-inverted.
The "Mark" soft key display appears.
2 Operate with the soft keys.
Soft key 1:
The mark type of a target is changed.
For details of size setting, see "2.17.2 SETTING MARK FUNCTIONS".
Soft key 2:
White
Cyan
Blue
Green
Yellow
Pink
Red
Soft key 3:
Delete
Press to delete the marks of selected type/color.
Hold down to delete all marks.
The confirmation dialog window is displayed.
(Marks and event marks are not distinguished when deleting.)
Soft key 4:
Off
Enter
Erase
Move
You can use the [ENT] key to create/delete/move the marks.
"Enter":
Press the [ENT] key to create a mark at the cursor position.
"Erase":
Press the [ENT] key to delete a mark at the cursor position.
"Move":
Use the cursor to select the mark to be moved and press the [ENT]
key. Then move the cursor to select the new position and press the
[ENT] key to place the mark.
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INSTRUCTION MANUAL
The mark color of a target is changed.
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2.7.19 USING LINES
Lines can be indicated at arbitrary positions on the screen.
Reference:
y Bearing signal input and latitude/longitude data input are required to use lines.
y Up to 200 lines/marks can be displayed for lines, marks and event marks in total.
1 Select
Line
on the soft key menu.
"Line" is color-inverted.
The "Line" soft key display appears.
2 Operate with the soft keys.
Soft key 1:
̿̿
----
㸫㸫㸫㸫
The line type of a target is changed.
Soft key 2:
White
Cyan
Blue
Green
Yellow
Pink
Red
The line color of a target is changed.
Soft key 3:
Delete
Press to delete the lines of selected type/color.
Hold down to delete all lines.
The confirmation dialog window is displayed.
Soft key 4:
Off
Enter
Erase
Move
Insert
You can use the [ENT] key to create/delete/move the lines.
"Enter": Press the [ENT] key to create a line at the cursor position.
"Erase": Press the [ENT] key to delete a line at the cursor position.
"Move": Use the cursor to select the line to be moved and press the [ENT] key.
Then move the cursor to select the new position and press the [ENT]
key to place the line.
"Insert”: Use the cursor to select the line to be inserted and press the [ENT] key.
Then move the cursor to select the position and press the [ENT] key to
insert the line.
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Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2.7.20 DISPLAYING OWN SHIP'S TRACK
The own ship's track function saves and displays own ship's track.
If navigation equipment is connected, this radar system records latitude/longitude data
sent from the navigation equipment and displays own ship's track. For detail settings of
own track (clearing own tracks, saved data clearing method, etc), see "2.17.4
DISPLAYING OWN SHIP'S TRACK".
Reference:
Bearing signal input and latitude/longitude data input are required to display own track.
1 Select
Own Track
on the soft key menu.
"Own Track" is color-inverted.
The "Own Track" soft key display appears.
2 Operate with the soft keys.
Soft key 1:
̿̿
----
㸫㸫㸫㸫
The line type of the own ship's track is changed.
Soft key 2:
White
Cyan
Blue
Green
Yellow
Pink
Red
The line color of the own ship's track is changed.
Soft key 3:
3sec
5sec
10min
30min
10sec
30sec
60min
1NM
1min
3NM
3min
5min
5NM
10NM
The storage interval of the own ship's track is changed.
A preset time interval or preset distance interval can be selected as the storage interval.
The distance setting varies depending on the range scale unit setting.
NM range:
1NM, 3NM, 5NM, 10NM
km range:
1km, 3km, 5km, 10km
sm range:
1sm, 3sm, 5sm, 10sm
Soft key 4:
On
Off
"On":
This system starts saving the position of the own ship's track.
"Off":
This system stops saving the position of the own ship's track.
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INSTRUCTION MANUAL
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2.7.21 USING EVENT MARKS
Displays the event marks.
Reference:
y Bearing signal input and latitude/longitude data input are required to display event marks.
y Up to 200 lines/marks can be displayed for lines, marks and event marks in total.
y This function is initially set to off. To use this function, set this to on by referring to
"‫ ڦ‬Soft Key Menu Setting" in "4.10 Control" of the Installation Manual.
1 Select
Event Mark
on the soft key menu.
"Event Mark" is color-inverted.
The "Event Mark" soft key display appears.
2 Operate with the soft keys.
Soft key 1:
The mark type of a target is changed.
For details of size setting, see "2.17.2 SETTING MARK FUNCTIONS".
Soft key 2:
White
Cyan
Blue
Green
Yellow
Pink
The mark color of a target is changed.
Soft key 3:
Delete
Press to delete the marks of selected type/color.
Hold down to delete all marks.
The confirmation dialog window is displayed.
(Marks and event marks are not distinguished when deleting.)
Soft key 4:
Event Mark ENT
An event mark is placed at the own ship's position.
Reference:
You can easily store the event marks, such as fishing spots.
Use the cursor to enter the marks for fishing spots, a sinking ship, fish reef, etc.
2-72
Red
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2.7.22 SETTING AIS FILTER
Once the AIS filter is set, only the AIS targets that are inside the filter area are displayed
(setting can be made such that AIS targets outside the AIS filter will not be shown).
The filter is initially set in a circle having a radius of 20 [NM] from the own ship's
position. If 50 or more targets exist in the filter range, they are displayed according to the
priority explained in "■ AIS Symbols" of Section "2.7.6 AIS OPERATIONS".
Reference:
y Bearing signal input and latitude/longitude data input are required to use AIS functions.
y This function is initially set to off. To use this function, set this to on by referring to
"‫ ڦ‬Soft Key Menu Setting" in "4.10 Control" of the Installation Manual.
AIS Filter
on the soft key menu.
"AIS Filter" is color-inverted.
The "AIS Filter" soft key display appears.
2 Operate with the soft keys.
Soft key 1:
Off
Range
Switches between Off and Range..
"Range":
Soft key 2:
Off
A filter is set in a circle with a set range as the radius.
On
"Off":
The filter is not displayed.
"On":
The filter is displayed.
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INSTRUCTION MANUAL
1 Select
Chapter 2 OPERATIONS
2.7 SOFT KEY OPERATION
2.7.23 USING TLL TX
Reference:
This function is initially set to off. To use this function, set this to on by referring to
"‫ ڦ‬Soft Key Menu Setting" in "4.10 Control" of the Installation Manual.
Sets the TLL TX.
Transmits the TLL sentence of the cursor position on the screen to inform the mark
position.
1 Select
TLL TX
on the soft key menu.
"TLL TX" is color-inverted.
The "TLL TX" soft key display appears.
2 Operate with the soft keys.
Soft key 1:
Off
TLL TX
"Off":
TLL sentence is not transmitted with the [ENT] key.
"TLL TX":
TLL sentence of the cursor position is transmitted with the [ENT]
key.
Soft key 2: Not available
Soft key 3: Not available
Soft key 4: Not available
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Chapter 2 OPERATIONS
2.8 BASIC MENU OPERATIONS
2.8 BASIC MENU OPERATIONS
The settings which will not be frequently changed are called by the [MENU] key.
This section describes the operation with the MENU key.
„ Keys for operation
y [MENU] key
y Cursor keys
y [MULTI] control
y [CLEAR] key
z [CLEAR] key
Press the [CLEAR] key to return to the upper level.
„ MENU Key Operations (Example: Opening "IR")
Select one of the menu items with ">" mark, then press the [ENT] key or the cursor
key (right) to display the submenu.
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INSTRUCTION MANUAL
1 Press the [MENU] key.
Chapter 2 OPERATIONS
2.8 BASIC MENU OPERATIONS
2 Press the cursor key (down) or turn the [MULTI] control (clockwise) to
select
RADAR Echo .
"RADAR Echo" is color-inverted.
3 Press the [ENT] key, the cursor key (right) or the [MULTI] control.
"RADAR Echo" menu appears.
Current settings are displayed on the right pane of the menu.
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---

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