User's Manual

Chapter 4 Target (AIS and TT) MDC-5200/5500 Series
0093155002-03 4-8
4.2 AIS
The AIS communicates with other ships via VHF (Very High Frequency) radio by transmitting your
ship information and by receiving other ships information.
Only AIS data with WGS84 datum is accepted.
If AIS data has no datum or if datum is other than WGS84, then the warning of [AIS datum is not
WGS84] appears. AIS data is not displayed.
Capable of displaying up to 1000 other ship symbols/IDs.
If the displayed targets exceed 951, then caution is displayed at the lower right of the display.
If the displayed targets exceed 900, then warning is displayed at the lower right of the display.
In that case, change [TARGET] => [INPUT RNG] value and decrease the displayed targets.
Note:
• If the displayed targets exceed 1000, then next coming AIS data cannot be displayed. For the sake of
safety, if warning is displayed, then change [INPUT RNG] value immediately and decrease the
displayed targets.
AIS function does not work due to incompleteness of input sentence.
If AIS is used in combination with [ASSISTANT INFO DISP], then AIS is effective.
Enable AIS function
This is to enable AIS function.
1 Press MENU key to display “Menu”.
Select [TARGET] => [AIS] => [AIS] => [ON], and press ENT key.
Select ID
This is to change the target selected by using [ACTIVE/SLEEP].
1 Press MENU key to display “Menu”.
Select [TARGET] => [AIS] => [SELECT ID], and press ENT key after selecting the setup value.
Selection values: 101 to 1100
Target number