Statements (28)
Predicate | Object |
---|---|
gptkbp:instanceOf |
radio communication protocol
|
gptkbp:abbreviation |
gptkb:DSC
|
gptkbp:enables |
group calls
distress alerts individual calls all ships calls |
gptkbp:frequency |
gptkb:HF
gptkb:VHF MF |
https://www.w3.org/2000/01/rdf-schema#label |
digital selective calling
|
gptkbp:introduced |
1980s
|
gptkbp:ITU-TRecommendation |
gptkb:ITU-R_M.493
|
gptkbp:purpose |
automated distress alerting
selective calling of ships |
gptkbp:relatedTo |
gptkb:GMDSS
maritime safety |
gptkbp:replacedBy |
voice hailing on channel 16
|
gptkbp:requires |
gptkb:SOLAS_ships
|
gptkbp:standardizedBy |
gptkb:International_Telecommunication_Union
|
gptkbp:transmittedBy |
digital signals
|
gptkbp:usedIn |
gptkb:GMDSS
gptkb:MF/HF_radio gptkb:marine_VHF_radio maritime communication |
gptkbp:uses |
gptkb:MMSI_number
|
gptkbp:bfsParent |
gptkb:GMDSS
gptkb:MF/HF_radio |
gptkbp:bfsLayer |
7
|