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Old 10-15-2019, 07:32 PM   #4
teknoid
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City: Chico
Country: United States
Join Date: Dec 2017
Posts: 4
My guess is that satellite data takes priority and not all AIS traffic reaches the satellite.

From this link (https://www.navcen.uscg.gov/?pageName=AISMessage27), it is unclear if *only* Class A and B/SO transmit this message, but thatís my read. If so, the variance in AIS equipment might explain what you are seeing.

James
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