Raymarine C140w - Classes of AIS Data

10.3ClassesofAISdata
TherearetwoclassesofAISdata;eachclasssupportsadifferent
rangeofAISdata.
AISdataisdenedasClassAorClassB.Thesendingand
receivingofClassAdataiscompulsoryforlargervessels.Youwill
thereforebeabletoviewalllargervesselsonyourAISdisplay.
ClassBdataisapplicabletosmallervesselsandisnotcompulsory.
YoushouldnotthereforeassumethatyourAISisdisplayingall
smallervesselsinyourarea.
Note:NotallAISreceiverswilldecodeallinformationandnot
alloftheClassAvesselsinputalloftherequiredAISdata.For
example,someinexpensiveAISClassBreceiversdonotdecode
andoutputinformationsuchastheship’sname,IMOnumberand
vesseldraft/beam/length,destinationandsoon.
YourAISreceiverortransceivermaysupportadditionalAISdata
thatisnotdecodedbythemultifunctiondisplay.
ThefollowingtableliststheAISinformationthatisdecodedbyyour
multifunctiondisplay.(Y=Y es;N=No):
Data
ClassA
(receive)
ClassB
(send)
ClassB
(receive)
Ship’sname
YYY
TypeYYY
Callsign
YYY
IMOnumber
YNN
LengthandbeamYYY
AntennalocationYYY
Data
ClassA
(receive)
ClassB
(send)
ClassB
(receive)
Draft
YNN
Cargo
Information
YYY
DestinationYNN
ETAYNN
TimeYYY
Ship’sposition
YYY
COG
YYY
SOG
YYY
Gyroheading
YYY
Rateofturn
YNN
Navigational
status
YNN
Safetymessage
YNY
136C-SeriesWidescreenuserreference