User Manual
Reference number: 4111A-RADAR4600-GBD-R1.1
Date: 27 February 2018
Page 146 of 149
INS
an integrated navigation system which complies
with the requirements of Annex 3 to IMO
resolution
MSC.86(70)
and
international
Standard IEC 61924.
latency
the delay between actual data received by the
equipment and the presentation or use of that
data.
lost AIS target
a target symbol representing the last valid
position of an AIS target before the reception
of its data was lost, or its last dead reckoned
(DR) position. The target is displayed by a “lost
AIS target” symbol.
lost tracked target
one for which target information is no longer
available due to poor, lost or obscured signals.
The target is displayed by a “lost tracked radar
target” symbol at its last known or dead
reckoned position.
maps / navigation lines
operator defined or created lines to indicate
channels, traffic separation schemes or borders
of any area important for navigation.
menu
an area of display that is allocated to the
interactive display and operation of a
structured menu for the selection and entry of
operational parameters, data and commands.
The menu display, when selected, is typically
replacing parts of, or the whole, data display.
navigation situation
the broad and general description of the type
of navigation that is planned or being
conducted, for example open ocean, coastal,
approach, confined waters, restricted, docking /
manoeuvring.
non volatile and transferable memory
a memory which retains its data when it is not
provided with power and removed from one
equipment or module, and fitted to another
equipment or module.
north up / N up
an azimuth stabilised presentation in which
north on the bearing scale remains fixed
vertically above the CCRP. The heading line
points from the CCRP to own ship’s referenced
heading on the bearing scale, and the bearing
of any target on the display is measured from
north. Such a bearing is commonly referred to
as a true bearing when the heading reference
input comes from a gyro aligned with true
north.
operational display area
the area of the display used to graphically
present chart and radar information, excluding
the user dialogue area. On the chart display
this is the area of the chart presentation. On
the radar display this is the area encompassing
the radar image.
operational mode
the primary function of the presentation
selected by the user, for the task at hand or
navigation situation, for example: radar, Chart,
Conning.
past positions
equally time spaced past position marks of a
tracked or reported target and own ship. The
past positions’ track may be either relative or
true, and may apply to tracked radar targets or
AIS targets.
presentation mode
the result of the combination of user selected
parameters that affect the display of
information, for example azimuth orientation,
motion, stabilisation, chart projection.
protected menu
one which is not easily accessed by the user
and access may be, for example by a password
or a switch.
radar
an abbreviation for
rad
io
d
irection
a
nd
r
anging. It is a radio frequency system that
allows the determination of distance and
direction of reflecting objects and of
transmitting devices.
radar beacon
a navigation aid which responds to the radar
transmission by generating a radar signal to
identify its position and identity.
radar cross section / RCS
the radar cross section of a target determines
the power density returned to the radar for a
particular power density incident on the target.
