Statements (13)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:maritime_communication_area | 
| gptkbp:alerts | gptkb:Digital_Selective_Calling_(DSC) | 
| gptkbp:appliesTo | ships subject to SOLAS | 
| gptkbp:covers | VHF coast stations with continuous DSC alerting | 
| gptkbp:definedIn | gptkb:International_Maritime_Organization | 
| gptkbp:partOf | gptkb:GMDSS | 
| gptkbp:range | approximately 20-30 nautical miles from coast | 
| gptkbp:requires | continuous VHF DSC watch by coast stations | 
| gptkbp:supportsProtocol | VHF radio | 
| gptkbp:usedFor | maritime distress and safety communications | 
| gptkbp:bfsParent | gptkb:GMDSS | 
| gptkbp:bfsLayer | 8 | 
| https://www.w3.org/2000/01/rdf-schema#label | sea areas A1 |