VHF DSC
E746402
VHF DSC (Very High Frequency Digital Selective Calling) is a marine radio communication system that enables automated distress alerts and selective calling between ships and shore stations on VHF channels.
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Digital Selective Calling system
ⓘ
GMDSS component ⓘ maritime communication system ⓘ |
| channelFrequency | 156.525 MHz ⓘ |
| channelNumber | 70 ⓘ |
| dataRate | 1200 bit/s ⓘ |
| fullName | Very High Frequency Digital Selective Calling NERFINISHED ⓘ |
| geographicScope | sea area A1 ⓘ |
| introducedFor | automated and reliable distress alerting ⓘ |
| modulationType | FSK ⓘ |
| operatesOn | simplex channel ⓘ |
| regulatedBy | International Telecommunication Union NERFINISHED ⓘ |
| relatedTo |
Inmarsat distress alerting
ⓘ
MF/HF DSC ⓘ |
| replaced | continuous voice watch on VHF Channel 16 for distress alerting on SOLAS ships ⓘ |
| requiresEquipment | VHF DSC-capable marine radio ⓘ |
| requiresIdentifier | Maritime Mobile Service Identity NERFINISHED ⓘ |
| safetyRole | primary distress alerting method on VHF under GMDSS ⓘ |
| separates | distress and calling from voice traffic ⓘ |
| standardizedIn |
ITU-R M.493
NERFINISHED
ⓘ
ITU-R M.541 NERFINISHED ⓘ |
| supportsFunction |
automatic channel switching for voice follow-up
ⓘ
automatic distress relay ⓘ position reporting in distress alerts ⓘ time-stamping of distress alerts ⓘ |
| supportsMessageType |
all-ships call
ⓘ
distress acknowledgment ⓘ distress alert ⓘ geographical area call ⓘ group call ⓘ individual call ⓘ polling call ⓘ test call ⓘ |
| supportsPriority |
distress
ⓘ
routine ⓘ safety ⓘ urgency ⓘ |
| usedBy |
coast stations
ⓘ
ships ⓘ vessels subject to SOLAS ⓘ |
| usedFor |
automated distress alerting
ⓘ
routine calling ⓘ selective calling between ships ⓘ selective calling between ships and shore stations ⓘ urgency and safety calls ⓘ |
| usedIn | Global Maritime Distress and Safety System NERFINISHED ⓘ |
| usesAddressing | MMSI numbers ⓘ |
| usesChannel | VHF Channel 70 ⓘ |
| usesEncoding | CCIR 493-4 NERFINISHED ⓘ |
| usesFrequencyBand | VHF maritime mobile band ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.