Electronic Chart Area - Furuno FMD-3200 Operator's Manual

2. OPERATIONAL OVERVIEW
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 (UK-HO)
• CM-ENC (C-MAP by Jeppesen)
• CM-93/3 (C-MAP by Jeppesen)
The following information can also be displayed:
• Cursor (moved by trackball)
• Planned route
• EBL (Electronic Bearing Line) and VRM
• Radar image
• Own ship symbol with speed vector
• TT-acquired target
• 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:
• S57ed3 ENC or CM-93 vector format
• ARCS raster format
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.
S57 vector format
ECDIS is compatible with S57 release 3 ENC format charts. ENC charts are converted
to SENC for use with ECDIS.
When you open a chart, it is displayed with the default scale, called the compilation
scale. The details for the chart are displayed in the electronic chart area and these can
be modified. You can change the chart scale with the ZOOM IN and ZOOM OUT func-
tions, and the scale range is 1:1,000 - 1:70,000,000.
CM-93: Compatibility with CM-93 format depends on commercial agreements. Some
versions of this ECDIS are compatible and others are not. A security device called a
dongle (the dongle for the FEA-2xx7 series can also be used, contact FURUNO for
details) controls the compatibility. From CM-93 format the ECDIS generates SENC
charts for use with ECDIS. The difference between S57ed3 ENC charts and CM-93
charts is that the CM-93 charts are from a private source and they cannot be used as
a substitute for paper charts under any condition. To emphasize this point these charts
are called "Non-ENC" charts in this manual.
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