ITU R M 1081:2012
ITU R M 1081:2012 Automatic Hf Facsimile And Data System For Maritime Mobile Users
Table of Contents
Annex1-Systemcharacteristicsandoperationalproceduresforsettingupcallsandpassingdatamessages
1General
2Mobiletogateway
3Gatewaytomobile
4Fixedusertogateway
Annex2-ContentsofDSCmessagesusedtoestablish
initialcontactbetweenthemaritimemobile
userandthegateway
1General
2DSCcallingmessagesoriginatedbymobileuserand
gatewayacknowledgements
Mobilecallingmessage
Gatewayacknowledgementmessage
3DSCcallingmessagesoriginatedbygatewayandmobile
acknowledgements
Gatewaycallingmessage
Mobileacknowledgementmessage
4DSCpositionrequestmessagesoriginatedbygatewayand
mobileacknowledgements
Positionrequestcall
Positionrequestacknowledgement
Annex3-Protocolandstructureofmessagesusedtopassdata
overtheworkingchannelbetweenthemaritimemobile
userandthegateway
1General
2Reliabletransferserver(RTS)
3ARQscheme
Annex4-TechnicalcharacteristicsofDSCandHFmodems
1DSCmodems
2HFmodems