
DataSummary
Data
Receiver
(receive)
Transceiver
(transmit)
Transceiver
(receive)
Ship'sname
YesYesYes
TypeYesYesYes
Callsign
YesYesYes
IMOnumber
YesNoYes
LengthandbeamYesYesYes
AntennalocationYesYesYes
Draft
YesNoYes
Cargo
Information
YesYesYes
DestinationYesNoYes
ETAYesNoYes
TimeYesYesYes
Ship'sposition
YesYesYes
COG
YesYesYes
SOG
YesYesYes
Gyroheading
Yes
Yes*
Yes
Rateofturn
YesNoYes
Navigational
status
YesNoYes
Safetymessage
YesNoYes
*ClassBtransceiversdonottransmitaGyroheadingunlessthe
transceiverisreceivinganNMEAHDTsentencefromanexternal
source.
Datareportingintervals
AISinformationisclassedaseitherstaticordynamic.Static
informationisbroadcast,whendatahasbeenamended,orupon
request,orbydefault,every6minutes.
Thereportingratesfordynamicinformationdependonspeedand
coursechange,andaregiveninthefollowingtables.
Note:Thereportingratesshownhereareforreferenceand
maynotbetherateatwhichinformationisactuallyreceivedby
yourAIStransceiver.Thisisdependentonanumberoffactors,
includingbutnotlimitedtoantennaheight,gainandsignal
interference.
ClassAsystems
ShipsDynamicConditions
Reportingrate
Atanchorormoored3Minutes
0-14knots
10Seconds
0-14knotsandchangingcourse
3
1
/
3
Seconds
14-23knots
6Seconds
14-23knotsandchangingcourse2seconds
Fasterthan23knots2seconds
Fasterthan23knotsandchanging
course
2seconds
Documentandproductinformation
17
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