Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:maritime_communication_area
|
| gptkbp:coverageRange |
20 to 30 nautical miles from coast
|
| gptkbp:covers |
VHF coast stations
|
| gptkbp:definedIn |
gptkb:International_Maritime_Organization
|
| gptkbp:frequency |
gptkb:VHF
|
| gptkbp:partOf |
gptkb:GMDSS
|
| gptkbp:requirementForShips |
VHF radio with DSC capability
|
| gptkbp:supportsProtocol |
continuous DSC alerting
|
| gptkbp:usedFor |
maritime distress and safety communications
|
| gptkbp:分布地区 |
coastal waters
|
| gptkbp:bfsParent |
gptkb:Global_Maritime_Distress_and_Safety_System
|
| gptkbp:bfsLayer |
7
|
| http://www.w3.org/2000/01/rdf-schema#label |
sea area A1
|