Electronic Chart Area - Furuno FCR-21x9-BB Operator's Manual

6. CHART OVERVIEW
6.1.1

Electronic chart area

This chart radar can use the following types of charts:
• S-57 (IHO)
• S-63 (IHO) (S-63 encrypted)
• 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
• Own ship symbol with speed vector
• TT-acquired target
• AIS target
Electronic charts
The electronic navigational charts, S57ed3 ENC or CM-93 vector format, are dis-
played in the electronic chart area.
The chart radar combines chart and navigational information. It should be noted that
modern navigation systems (e.g., differential GPS) may offer more accurate position-
ing than what was used to position some of the surveys from which the electronic nav-
igational chart was derived.
S57 vector format
This chart radar is compatible with S57 release 3 ENC format charts. ENC charts are
converted to SENC for use with the chart radar.
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 chart radar 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 chart radar generates
SENC charts for use with the chart radar. 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.
CM-ENC: C-MAP produced official ENC chart that complies with the IHO's (Interna-
tional Hydrographic Organization's) S-57 Edition 3 product specification. When used
in the chart radar, the ENC data improves the safety of navigation at sea.
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