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Trial maneuver
True vector
TT
TTG
TXRX
UKHO
Update CD
USER CODE
UTC
VRM
VDR
WOL
WOP
WPT
WPT-WPT
XTD
XTL
Activated target
Associated target
Chirp
Clutter
:
A graphical simulation facility used to assist the operator to perform a
proposed maneuver for navigation and collision avoidance purposes
:
A vector representing the predicted true motion of a target, as a result
of input of the course and speed of the own ship
:
Target Tracking
:
Time To Go. Time to next waypoint.
:
Transmitter-Receiver Unit
:
United Kingdom Hydrographic Office
:
Chart CD containing the chart data updated from Base CD. This can
be used when Base CD data has been imported.
:
A user-specific code assigned by JRC. Required in using ARCS and
S-63 charts.
:
Universal Time, Coordinated
:
Variable Range Marker
:
Voyage Data Recorder
:
Wheel Over Line
:
Wheel Over Point
:
Waypoint
:
The division of the leg specified by two points. Displays data between
two consecutive waypoints.
:
Cross Track Distance
:
Cross Track Limit
:
A target representing the automatic or manual activation of a sleeping
AIS target for the display of additional information
:
A target simultaneously representing a tracked target and a AIS target
which are decided as the same
:
A type of transmission waveform with intra-pulse frequency
modulation used by solid-state radars. Its radio wave type is classified
as Q0N.
:
Unwanted reflections on a radar screen, from sea surface, rain or
snow.
xxiv
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