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.1
Bridge-to-bridge communications means
safety communications between ships from the position from which the
ships are normally navigated.
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.2
Continuous watch means that the
radio watch concerned shall not be interrupted other than for brief
intervals when the ship's receiving capability is impaired or blocked
by its own communications or when the facilities are under periodical
maintenance or checks.
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.3
Digital selective calling (DSC) means
a technique using digital codes which enables a radio station to establish
contact with, and transfer information to, another station or group
of stations, and complying with the relevant recommendations of the
International Radio Consultative Committee (CCIR).footnote
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.4
Direct-printing telegraphy means
automated telegraphy techniques which comply with the relevant recommendations
of the International Radio Consultative Committee (CCIR).footnote
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.5
General radiocommunications means
operational and public correspondence traffic, other than distress,
urgency and safety messages, conducted by radio.
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.6
Inmarsat
footnote means
the Organization established by the Convention on the International
Maritime Satellite Organization adopted on 3 September 1976.
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.7
International NAVTEX service means
the co-ordinated broadcast and automatic reception on 518 kHz of maritime
safety information by means of narrow-band direct-printing telegraphy
using the English languagefootnote.
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.8
Locating means the finding of
ships, aircraft, units or persons in distress.
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.9
Maritime safety information means
navigational and meteorological warnings, meteorological forecasts
and other urgent safety related messages broadcast to ships.
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.10
Polar orbiting satellite service means
a service which is based on polar orbiting satellites which receive
and relay distress alerts from satellite EPIRBs and which provides
their position.
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.11
Radio Regulations means the Radio
Regulations annexed to, or regarded as being annexed to, the most
recent International Telecommunication Convention which is in force
at any time.
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.12
Sea area A1 means an area within
the radiotelephone coverage of at least one VHF coast station in which
continuous DSC alerting is available, as may be defined by a Contracting
Government. footnote
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.13
Sea area A2 means an area, excluding
sea area A1, within the radiotelephone coverage of at least one MF
coast station in which continous DCS alerting is available, as may
be defined by a Contracting Government.footnote
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.14
Sea area A3 means an area, excluding
sea areas A1 and A2, within the coverage of an INMARSAT geostationary
satellite in which continuous alerting is available.
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.15
Sea area A4 means an area outside
sea area A1, A2 and A3.
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.16
Global maritime distress and safety system (GMDSS) identities means
maritime mobile services identity, the ship's call sign, recognized mobile
satellite service identities and serial number identity which may be transmitted
by the ship's equipment and used to identify the ship.
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.17
Recognized mobile satellite service means any service which operates
through a satellite system and is recognized by the Organization, for use in the
global maritime distress and safety system (GMDSS).