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1. OPERATION
1-13
1.7.1 Plotter display
The plotter display, which automatically appears at power-on, shows the range
and course of AIS-equipped ships within the current range. The position and
course of your ship are also displayed.
[FURUNO]
HDG: 111°
SOG: 10kt
COG: 111°
CPA: 6.19
TCPA: 12'59
INTRD: 1
Selected target
(circle filled in black)
Target (hollow circle)
Own ship
course marker
Display range
RNG: 6 DETAIL:[ENT]
Target name
Heading
Speed
Course
CPA
TCPA
n
m
n
m
Dangerous target
(Target whose CPA and TCPA are lower
than CPA and TCPA alarm settings.)
Lost target
Number of dangerous
targets
Data for target
selected
Plotter display
A target marker (hollow circle w/vector) indicates the presence of a vessel
equipped with AIS in a certain location and course. If you desire to know more
about a vessel’s data, see the next paragraph.
Operations on the plotter display
1. Press the DISP key to show the plotter display.
2. Use ▼ or ▲ to choose the range. The available ranges are (in nm) 0.125,
0.25, 0.5, 0.75, 1.5, 3, 6, 12, and 24.
3. To find a target’s data, see paragraph 1.7.2.
Note 1: A target is declared a lost target under the conditions shown in the
table below. A target is erased from the screen 6 minutes and 40
seconds after it is declared a lost target.
Ship’s navigation status Target declared as lost target after
Ship at anchor or moored and not moving faster than 3 kts 10 min
Ship at anchor or moored and moving at more than 3 kts 50 s
0-14 kt speed 50 s
0-14 kt speed with course change 50 s
14-23 kt speed 25 s
14-23 kt speed with course change 25 s
Speed higher than 23 kt 7 s
Speed higher than 23 kt with course change
7 s
Note 2: When a target’s CPA and TCPA are lower than set in paragraph 1.6,
the target flashes and the audio alarm sounds (if active). Press any
key to stop the flashing and silence the audio alarm. Take suitable
measures to avoid collision.
Note 3: "DNGR" (DANGER) appears at the end of the HDG field when a
target's CPA and TCPA are lower than the CPA and TCPA alarm
settings. Further, when a target becomes a lost target, “LOST” appears
at the end of the HDG field.