JRC JMA-932B-SA User Manual page 281

Types of Decision Conditions to be Set
Decision conditions
1. Association
2. Priority
3. Bearing
4. Range
5. Course
6. Speed
7.Applicable AIS Target
If a great value is set as a condition for deciding
targets as identical, a tracking target near an AIS
target is regarded as identical to the AIS target and
it may not be displayed any more.
For example, when a pilot boat (which is a small
target not being tracked) equipped with an AIS
function approaches a cargo ship as a tracking
target not equipped with an AIS function, the
tracking target symbol of the cargo ship may not
be displayed any more.
On / Off (Function to decide targets as identical)
AIS / TT (Symbol to be displayed)
0.0 to 9.9°
0 to 999 m
0 to 99°
0 to 99 kn
ACT or ACT & Sleep (activated AIS target or all AIS
target)
CAUTION
5-42
5.4 Decision Of Targets As Identical
5