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13-1
13. Notes
13.1 Introduction
A navigation-related notebook is called "Notes". Notes is a "notebook data" file that provides messages for the
operator relative to a specific ship position in the monitor mode. The user specifies range for each Notes record. The
chart radar compares Notes range and own ship position and displays Notes when own ship goes within the range
set for the Notes. (See figure below.)
The operator may assign a brief message that will appear on the radar display together with the notice of the
proximity of the relevant point.
While the ship sails, notebook pages (= records) in the chosen Notes file are compared with own ship position once
per minute to choose Notes. Further, when the ship has passed a waypoint, the system will make a comparison
against own ship position. If the system finds that you have arrived within a new Notes notebook page, it generates
the alert "850 Notes: New record".
i
Range
i
Position of own ship
when Notes will
disappear
Location of
Notes
Position of own ship
when Notes will be
activated
Position of own ship
when Notes will
disappear
Position of own ship
when Notes will be
activated
Location of
Notes
Distance less
than 10 NM