5.3  AIS OPERATION 
 
AIS Process Unit (option) is necessary. 
 
5.3.1 Restrictions 
 
The following restrictions are placed on use of the AIS function. 
 
•  The AIS function is unavailable in the following cases: 
a)    MAN    or    REF.    is selected for the speed sensor. 
b) The current offset (Set/Drift Setting) is set while    LOG    or    2AXW    is selected for the speed 
sensor. 
c) The GPS geodetic system is used except WGS-84. 
 
•   LOG  or  2AXW  cannot be selected for the speed sensor in the following case: 
  The AIS function is turned on and the current offset (Set/Drift Setting) is selected. 
 
•    MAN    cannot be selected for the speed sensor in the following case: 
  The AIS function is On. 
 
•  Current offset (Set/Drift Setting) cannot be turned On in the following case: 
    LOG    or    2AXW    is selected for the speed sensor while the AIS function is on. 
 
 
 
5.3.2  Setting AIS Display Function (AIS Function) 
 
 
 
z  When the AIS function is set to Off, the AIS display 
function is turned off and AIS symbols are no longer 
displayed. 
z  Once the AIS display function is set to Off, it is not 
automatically switched to On even if a dangerous 
target exists. 
Attention 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 Procedures   1  Put the cursor on the AIS On / Off (TT / AIS information  ⑧ on page 
2-23), and press the [ENT] key. 
 
The received AIS information will be shown on the radar display. 
 
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