User's Manual

Table Of Contents
Synapsis Radar
with Nautoscan NX Pedestal
Operator Manual
Edition July 2015
2-149
4265.DOC020102
2.5.4.2 Target Symbols (ARPA / AIS)
The AIS symbols are assigned different pieces of target information. Depending
on the situation, each symbol has a different meaning (see following table).
AIS Target
Symbol
Description of symbols
Sleeping AIS
targets
Sleeping AIS target with neither
reported heading nor COG
Sleeping AIS targets shall be
presented as acute isosceles
triangles oriented to the targets’
reported heading (or COG if
heading is not reported) and
centered at the targets’ reported
position. The base of the triangles
shall be 3 mm and the height shall
be 4,5 mm. The triangles shall be
drawn using a thick solid line style
(or a broken line if a collision
avoidance computation cannot be
done) with the same basic color
used for target symbols.
A sleeping AIS target with neither
a reported heading nor COG shall
be oriented toward the top of the
operational display area.