Sperry Marine Visionmaster FT ECDIS, Руководство пользователя

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Charts ECDIS User Guide
4-80 65900012
Dangers Information
The chart dangers information area at the bottom of the window gives
detailed information on each dangerous object selected. This information
will include the following:

Object Type - e.g. Depth Area, Caution Area

Latitude/Longitude position of object

Database - the chart database, e.g. SevenCs S-57.

Chart - the reference number of the nearest chart to the dangerous
object.
Depth area information will additionally include the following data:

Depth Range Value 1

Depth Range Value 2
The figure shown with Value 1: usually represents the minimum depth in
metres of the Depth Area. This value may be 0 or a negative value if the
depth area represents height above water (e.g., land mass or a harbour
wall).
The figure shown with Value 2: usually represents the maximum depth in
metres of the Depth Area.
Other detailed information on dangerous objects may include (depending
on the object) textual description, minimum scale, category of area etc.
Danger Settings
Danger settings can be enabled or disabled, and
default values adjusted. The Settings tab folder
includes the following areas (described below):

Look-Ahead (Time/Distance, added
breath)

Alert Priority

Local Display Safety Region

Highlight (these settings apply to ECDIS
watch mode only)
Look Ahead
The Look-Ahead range controls how far in
advance an alert is given before a specified range
limit is reached. This range may be defined either
as time (minutes), or distance (nautical miles). The
Look-Ahead range controls the safety region,
which is indicated as a white outline rectangular box around own ship. The