2. OPERATIONAL OVERVIEW
2-2
Note: If the display indications freeze (because of ECDIS error, etc.), the buzzer
sounds continuously. Restart the system to restore normal operation.
2.1.1 Electronic chart area
The ECDIS can use the following types of charts:
• S-57 (IHO)
• S-63 (IHO) (S-63 encrypted)
• ARCS (UKHO)
• C-MAP
The following information can also be displayed:
• Cursor (moved by trackball)
• Planned route
• EBL (Electronic Bearing Line) and VRM (Variable Range Marker)
• Radar image
• Own ship symbol with speed vector
• TT (Tracked Target, acquired from radar)
• AIS target
Electronic charts in ECDIS
The electronic navigational charts are displayed in the electronic chart area. There are
two kinds of electronic navigational charts available for use in the ECDIS:
• Vector format (ENC or C-MAP)
• Raster format (ARCS)
The ECDIS combines chart and navigational information. It should be noted that mod-
ern navigation systems (e.g., differential GPS) may offer more accurate positioning
than what was used to position some of the surveys from which the electronic naviga-
tional chart was derived.
ENC vector format
ECDIS is compatible with S57 Ed.3 ENC format
charts. ENC charts are converted to SENC for use
with ECDIS.
The details for the chart are displayed in the elec-
tronic chart area and these can be modified. You
can change the chart scale with the ZOOM IN and
ZOOM OUT functions, and the scale range is
1:1,000 - 1:70,000,000.
12 Chart scale/presentation mode box Selects the chart scale and presentation mode.
13 Electronic chart area Shows the ECDIS chart.
No. Name Description
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