How To Deactivate The Ais Function - Furuno FCR-2119-BB Operation Manual

4. AIS OPERATION
There can be several hundreds or several thousands of AIS targets, and of those only
a few will be significant for your ship. To remove unnecessary AIS targets from the ra-
dar display, the feature "active and sleeping AIS targets" is available. Initially any new
AIS target received by an AIS transponder is not active (="sleeping"). Such sleeping
targets are shown with a small triangle. The operator can pick any AIS target and
change it from sleeping to active. Active AIS targets are shown with a large triangle
with speed vector, headline, ROT indicator, etc. Further, the operator can pick active
AIS targets and change their status to sleeping.
An indication of AIS target activated capacity limit is given well before it is reached.
When 95% of 500 targets are activated, the Alert 534 (ALF format: 10190,3) "AIS Tar-
get Activate 95%" appears. When 500 targets are activated, the Alert 535 (ALF format:
190,3) "AIS Target Activate 100%" appears.
An indication of AIS target display capacity limit is given well before it is reached.
When 95% of 1,000 targets are displayed, the Alert 530 (ALF format: 10190,1) "AIS
Target Display 95%" appears. When 1,000 targets are displayed, the Alert 531 (ALF
format: 190,3) "AIS Target Display 100%" appears.
An indication of AIS target processing capacity limit is given well before it is reached.
The Alert 533 (ALF format: 190,2) "AIS Target Capacity 100%" appears when 2,000
targets are in the storage buffer.
This radar generates AIS-related alerts. These are Alert 536 (ALF format: 191,2) "AIS
CPA/TCPA" and Alert 537 (ALF format: 193,3) "AIS Lost". Only active AIS targets gen-
erate alerts. The operator can activate or sleep AIS target alerts as desired. The fea-
ture "active and sleeping AIS targets" is very effective for focusing on only those AIS
targets that need supervision. This radar further eases the task of the operator by au-
tomatically changing non-active targets to active targets, if their CPA and TCPA are
within a preset limit.
4.1

How to Deactivate the AIS Function

Long-click the AIS status indication at the bottom-right position to display [FUNC OFF]
to deactivate the AIS function (sleep all AIS targets) and AIS messaging facility. To
activate AIS, push the left button again.
Note: You cannot enable AIS if any of the items listed below are active.
• Manual speed
• Manual set & drift
• Speed is calculated from reference targets
4-2