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5–4
SECTOR INFO: Turn on/off graphic which shows viewable range
for ligthouse.
LIGHTS FLASH: Turn on/off blinking lights on screen, which
shows lighthouses or lighted buoys.
5.5 PLOTTER SETUP Menu
The PLOTTER SETUP menu in the SYSTEM SETUP menu con-
tains several items related to plotter operation which you may
change according to your operating needs.
Keying sequence: [MENU ESC] [0] [2]
PLTR SETUP
NAVAID OWN LC DC ALL
SCALE SCALE RANGE
SMOOTHING 00 (00~15)
SPD AVERAG 00 min
BEARING TRUE MAG
MAG CALIB AUTO MAN
06.9° W 00.0° E
EVNT METHOD EVENT MARK
POSITION L/L LOP
DISP LC DC
Chain:Sec 7970:11-26
LOP CALIB +000.0µs
+000.0µs
:E/W
▼▲ :Cursor ESC:Esc
Figure 5-5 PLOTTER SETUP menu
PLOTTER SETUP menu description
NAVAID: Select navaid which is to feed position data; internal
GPS, external GPS, Loran C, Decca, or ALL. Select ALL for mul-
tiple navaid connection. In this case position data is read in the
order of GPS, Loran C, Decca, etc.
SCALE: Select chart scale display indication on the plotter dis-
play to scale or range.
SMOOTHING: Even when the vessel is sailing a straight line the
track shown on the display looks crooked. This is due to signal
variation of the external navaid. To smooth out this irregularity,
change the smoothing factor.
In the figure at the top of the next page, the actual ship’s track is
shown by a wide hatched arrow and the position being fed from
the navaid is shown by black dots. If no smoothing is applied, the
track shown on the display will look irregular due to signal varia-
tions.