21. AIS Target Functions
21-9
21.10 AIS Target Related Alerts
"636 AIS display 95% full": Shown when 95% of user set limit reached.
"637 AIS display 100% full": Shown when user set limit is reached.
"638 AIS storage 95% full": Given when 95 percent of 1500 targets are in the storage buffer
"639 AIS storage 100% full": Given when 1500 targets or more are in the storage buffer.
"737 AIS receive error": Warns that data from an AIS transponder is not correctly received.
21.11 How to Display AIS Target Data
Put the cursor on a desired AIS target then push the scrollwheel. The AIS Target Dialog window appears, similar to
the one shown below.
AIS target on ECDIS display
AIS target dialog window
The Target Dialog window displays the following information for an AIS target:
AIS Target Name or Call Sign BCR, BCT: Bow Closest Range, Bow Closest Time
BRG: True bearing from own ship Status of target: indicates target status
RNG: Distance from own ship LAT and LON of target
COG: Course over Ground of the target
CRS: True Course (when using TVect (S) mode)
HDG: heading
SOG: Speed over Ground of the target
STW: Speed Through Water (when using TVect (S)
mode)
ROT: Rate of Turn of target
CPA and TCPA
Target status
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