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2-10
2.8 Adjusting Brilliance of
Plot Marks
1. Press the RADAR MENU key on the
plotting keypad to show the FUNC-
TIONS menu.
2. Press the [9] key to show the BRIL-
LIANCE menu.
3. Press the [7] key to select 7 PLOT
BRILL.
4. Further press the [7] key to select (or
highlight) a desired brilliance level.
5. Press the ENTER key to confirm your
selection followed by the RADAR
MENU key to close the FUNCTION
menu.
Note: Refer to paragraph 1.37 for the
BRILLIANCE menu screen.
2.9 Displaying Target Data
The Auto Plotter calculates motion trends
(range, bearing, course, speed, CPA and
TCPA) of all plotted targets.
In head-up and head-up true bearing
modes, target bearing, course and speed
shown in the upper-right target data field
become true (suffix "T") or relative (suffix
"R") to own ship in accordance with the
true/relative vector setting. In north-up,
course-up and true motion modes, the
target data field always displays true bear-
ing, true course and speed over the
ground.
Place the cursor on a desired target and
press the TARGET DATA key on the plot-
ting keypad. Data on the selected target
is displayed at the upper-right corner of
the screen. A typical target data display
is shown in the illustration below.
RNG/BRG (Range/Bearing): Range and
bearing from own ship to the selected tar-
get with suffix "T" (True) or "R" (Relative).
CSE/SPD (Course/Speed): Course and
speed are displayed for the selected tar-
get with suffix "T" (True) or "R" (relative).
CPA/TCPA: CPA(Closest Point of Ap-
proach) is the closest range a target will
approach to own ship. TCPA is the time
to CPA. Both CPA and TCPA are auto-
matically calculated. When a target ship
has passed clear of own ship, CPA is pre-
fixed with an asterisk such as,
CPA*1.5NM. TCPA is counted to 99.9 min
and beyond this, it is indicate as
TCPA>*99.9MIN.
BCR/BCT: Bow crossing range is a range
of a target which will pass dead ahead of
own ship at a calculated distance. BCT is
the time when BCR occures.
RNG 3.4 NM
BRG 25.5°R
CSE 264.0°R
SPD 12.3 KT
RNG: Range from own ship
to target
BRG: Bearing from own ship
to target (true or relative)
CSE: Course of target
(true or relative)
SPD: Speed of target
CPA: CPA between own ship and
target
TCPA: TCPA between own ship
and target
BCR: Bow Cross Range
BCT: Bow Cross Time
CPA 2.9NM TCPA 12.2MIN
BCR 8.7NM BCT20MIN
000
010
020
030
040
050
060
070
080
090
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
Target in
guard ring
Target on
collision course
Manually
acquired
target
Guard
ring
Auto acqui-
sition area
Automatically
acquired
target