A-9  Appendix A Alert List 
 
 
 
 
 
A.3  Cautions 
 
Message  Explanation 
AIS 95% Capacity  The target number of AIS has reached 95% of the 
acceptable amount. 
AIS ACT 95% Capacity  The activation target number of AIS has reached 95% of the 
acceptable amount. 
COG/SOG(invalid)  There is a format error or a status error of the COG/SOG 
data. 
COG/SOG(not plausible)  There is a range error of the COG/SOG data. 
COG/SOG(unavailable)  The backup COG/SOG data cannot be received or cannot 
be calculated. 
HDOP Exceeded (GPS #n)  The GPS#n precision is deteriorated. 
Heading(invalid)  There is a format error or a status error of the Heading data. 
Heading(not plausible)  There is a range error of Heading data. 
Heading(unavailable)  The Heading data cannot be received. 
Multi Current(invalid)  There is a format error or a status error of the data. 
Multi Current(Unavailable)  The data cannot be received. 
Position Shift  The position of your ship is displayed being shifted. 
Position(invalid)  There is a format error or a status error of the Position data. 
Position(not plausible)  There is a range error of Position data. 
Position(unavailable)  The backup position data cannot be received or cannot be 
calculated. 
Scanner Rotating  The radar antenna is rotating. 
STW Speed(Invalid)  There is a format error or a status error of the STW data. 
STW Speed(not plausible)  There is a range error of STW data. 
STW Speed(Unavailable)  The STW data cannot be received. 
TIME(invalid)  There is a format error or a status error of the Time data. 
TIME(unavailable)  The Time data cannot be received. 
Trial  It is in trial. 
TT 95% Capacity  The target number of TT has reached 95% of the acceptable 
amount.