Why Ships Disappear from Maps.
WHY DO SOME SHIPS DISAPPEAR FROM TRACKING MAPS?
RECEIVER COVERAGE GAPS
The vessel may be outside terrestrial or satellite AIS coverage.
SIGNAL CONGESTION
Busy maritime areas can produce overlapping AIS transmissions.
EQUIPMENT OR POWER FAILURE
The AIS unit may have malfunctioned or temporarily lost power.
DATA DELAYS
The tracking platform may not have received or processed the newest signal.
AIS MAY BE SWITCHED OFF
This can happen for legitimate safety reasons—or sometimes raise questions requiring further analysis.
A missing position does not automatically prove suspicious activity.
Learn more at VesselPing.com.
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