Choose the field name for which more detailed explanation is required.
Ship nameShip names are displayed as notified, to the ITU, by the responsible Administration. The following principles should be noted:
Call SignCall sign formed from the international call sign series in accordance with Article 19, Section III of the Radio Regulations (RR). The sign = (equal) in this column indicates that the name of the ship is used to identify the station in radiotelephony. A dotted line (....) means that no information has been provided on this subject by the administration concerned.
Selcal No.(s) = Selective call numberSelective call numbers assigned by Administrations in accordance with RR Article 19, Section V, of the Radio Regulations. The selective call number are prefixed as follows:
Admin.Geo.Area = Administration and/or Geographical AreaAdministration and/or Geographical Area to which the MID has been allocated, indicated by the full name.
BoatsIndicates the number of lifeboats on board fitted with radio apparatus.
EPIRBsEmergency Position-Indicating RadioBeacon: A station in the mobile service the emissions of which are intended to facilitate search and rescue operations.Symbols used in this field are:
The latter information may be completed by a figure indicating the number carried of each type of equipment.
Ship ClassShips (including any other device carrying a ship station) are classified by means of a two-letter general classification symbol and followed by a two or three-letter individual classification symbol. The meaning of each symbol used is given below:Symbols which designate classes of ships
Corresp. = Nature of ServiceThe nature of service includes the classification as regards the type of international correspondence service maintained by the station, indicated by means of one of the following symbols:
Terr. Serv = Terrestrial ServicesThe specific services provided by a station open to public correspondence in the maritime mobile service. These services are indicated by one or more of the following symbols:
As regards the maritime mobile-satellite service, the same specific services are usually supported by the system.
Hours = Hours of ServiceHours of service are expressed in the form of one of the following symbols:
RTG Band = Telegraph transmission frequency bandsFrequency bands used for radiotelegraphy transmissions, indicated by one or more of the following symbols:
RTF Band = Telephone transmission frequency bandsFrequency bands used for radiotelephony transmissions, indicated by one or more of the following symbols:
AAIC = Accounting Authority Identification CodesThese are identified by their accounting authorities identification codes (AAICs) in accordance with ITU-T Recommendation D.90 or by a numerical references to notes designating other entities to which accounts for the mobile station may be sent.
AAIC SATAn AAIC identifying an accounting authority charged with the accounting in the maritime mobile-satellite service, if not the same as the AAIC.
AA info. = AAIC informationParticulars concerning the termination or cancellation of accounting authority responsibilities (dates preceded by the abbreviations TER or CAN respectively).
NTLX No.(s) = National telex systemsNumbers used within national telex systems.
MMSI No. = Maritime Mobile Service Identities9-digit ship station identities are assigned by Administrations in accordance with Article 19, section VI of the Radio Regulations.
Inmarsat No. (s) = Inmarsat numbers7 or 9-digit numbers used within the Inmarsat system. The general format of the Inmarsat mobile number is:T1(T2) X1X2 ... Xk where a single or double digit T is used for discrimination between different Inmarsat systems. Value of T digit(s) for various applications
Owner = Owner of stationThe name of the licensee or the owner of the ship.
Ex Ship-NameShip station formerly registered with this name.
Ex Call SignShip station formerly assigned this call sign.
EPIRB Id. CodeThe identification code for alerting devices of the GMDSS, in accordance with the most recent versions of the ITU-R Recommendations M. 585, M. 632, M. 633 and M.693.Presently, the codes used are either the MMSI No. or the MID + Radio call sign or serialized protocols (one per vessel).
Vessel Id. No.The IMO number or national registration number.
Gross TonnageA common measurement of the internal volume of a ship with certain spaces excluded. One ton equals 100 cubic feet; the total of all the enclosed spaces within a ship expressed in tons each of which is equivalent to 100 cubic feet.
Person CapacityCapacity of persons on board (passengers and crew)
Radio InstallationShip's radio installation, such as Inmarsat A, B, C, VHF DSC, etc.
Emergency ContactAccess to information concerning the contact persons (names, addresses, telephone and telefax numbers) as well as alternative 24-hour emergency telephone numbers, is restricted to administrations and by extension to Rescue Coordination Centres. Note: Administrations will be provided, on receipt of a formal request addressed to the Director of the Radiocommunication Bureau, with a unique account number, consisting of a username and password. The account numbers will allow users access to the information mentioned in the above paragraph. It will be the responsibility of administrations to provide their account number to the Rescue Coordination Centres under their jurisdiction, for whom this information may be necessary for effective and coordinated search and rescue activities in the current Global Maritime Distress System (GMDSS ) regime.
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