Page 103 - Electronic Navigation Cyber Book

Interactive Entry: This method requires the interactive application of the
textual Notice to Mariners. The operator determines the corrections from
the Notice. Then, using a toolkit, he selects the symbol appropriate to the
correction required, identifies the location of the symbol, and adds the
appropriate textual information identifying the nature of the correction.
This method of correction is labor intensive and subject to operator error.
It also clutters the screen display because it can be applied only as an
overlay to the ENC data.

Semi-Automatic Entry: This method requires the operator to enter the
correction data furnished in correct digital format by the originating
hydrographic Office into the system via electronic medium (a modem or
floppy disc, for example). The ECDIS then processes these corrections
automatically and displays an updated chart with the changed data

indistinguishable from the remaining original data base.

Fully Automatic Entry: The fully automatic method of correction entry
allows for a direct telecommunications link to receive the official digital
update and input it into the ECDIS. This process is completely
independent of any operator interface. Internal ECDIS processing is the
same as that for semi-automatic updating of the data base.

HOW TO USE ECDIS EQUIPMENT

ABOUT MAIN WINDOW.
The main window is divided into four different areas:
• Window Title
• Chart Area
• Toolbar Panel
• Console area

A typical ECDIS screen may look as like this:

© 2018 Digital Galaxy Index 103