GPS Navigator J-NAV500
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Appendices
Appendix A Message list
Error messages
Message Description
RAM NG Display RAM failure. Contact JRC sales department or local branch.
ROM NG Display ROM failure. Contact JRC sales department or local branch.
RCV NG GPS/DGPS receiver is not connected or is malfunctioning.
Connect GPS/DGPS receiver properly. If the message still persists, contact
JRC sales department or local branch.
Alarms
Message Description
ARV Arrival alarm. The ship has come inside set arrival range.
Press to silence alarm. The display goes blank when the distance is set
to 0.00 m.
ANC Anchor alarm. The ship has drifted outside the set distance range.
Press to silence alarm. The display goes blank when the distance is set
to 0.00 m.
XTE Off-course alarm. The ship has drifted more than the set distance off course.
Press to silence alarm. The display goes blank when the distance is set
to 0.00 m.
HDOP Indicates poor HDOP value. The HDOP indicator flashes when HDOP ex-
ceeds 4. Since HDOP is poor, GPS and DGPS receiver position accuracy is
poor. The alarm goes off when HDOP improves.
NO FIX GPS or DGPS receiver is not position fixing. Press to silence alarm.
Install GPS or DGPS receiver in location with better reception.
GPS DGPS alarm. When a DGPS alarm is set to on and the GPS or DGPS receiver
goes from DGPS to GPS position fixing, the buzzer sounds once.
MOB MOB function (displayed in the title area). The MOB function is
canceled when MOB is pressed for 3 seconds or longer.
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