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telephony, telex, distress messaging, fax and data services.
Inmarsat C: A digital system, operating since 1991, based on low-cost MESs of low
power-consumption, using an omni-directional antenna. This system provides the
services of global two-way store-and-forward messaging, distress calling (alerting and
messaging), EGC SafetyNET and FleetNET, data reporting and polling.
Inmarsat E: A distress alerting system based on EPIRBs.
International Alphabet Number 5: (Also known as ASCII) - a standard alpha-numeric
character set based on 7-bit binary codes.
IOR: Indian Ocean Region.
ISL: Interstation Signalling Links, used to pass information between LESs and the NCS
in an Ocean Region.
LES: Land Earth Station, may also be called CES (Coast Earth Station).
MF: Medium Frequency.
MSI: Maritime Safety Information.
National Hydrographic Office: A national Organisation responsible for collecting and
distributing navigational warnings.
National Meteorological Office: A national Organisation responsible for collecting and
distributing meteorological warnings and forecasts.
NAVAREA/METAREA: One of the 16 areas of sea defined by the IMO, into which the
world's oceans are divided for the dissemination of navigational and meteorological
warnings and forecasts.
NAVTEX: The International NAVTEX service is the medium frequency radio telex
broadcasting system developed by the IMO for the purpose of broadcasting and
automatic reception of MSI by means of direct-printing telegraphy.
NCS: Network Co-ordination Station, an Earth Station which monitors and controls
communication through all the LESs in an Ocean Region.
SafetyNET Users Handbook  4th Edition Page 23
Ocean Region: The coverage area of an Inmarsat satellite, within which a suitably
equipped MES can send and receive messages.
POR: Pacific Ocean Region.
PVT: Performance Verification Test.
RCC: Rescue Co-ordination Centre, also may be referred to as (M)RCC i.e. Maritime
Rescue Co-ordination Centre.
SafetyNET: The International SafetyNET Service.
SAR: Search-and-Rescue.
SOLAS: The International Convention on the Safety of Life at Sea 1974 (SOLAS), as
amended.
UTC: Universal Co-ordinated Time.
WMO: The World Meteorological Organisation.
SafetyNET Users Handbook  4th Edition Page 24 [ Pobierz całość w formacie PDF ]