Ships are required to take care of all service documents that may be subject to submission in accordance with the Radio Ragulations. The following documents are required:
The ship’s Radio Licence
The Radio operator’s certificates
The GMDSS Radio Logbook
The List of Call Signs and Stations’ Numerical Identities used by the Maritime Mobile and Maritime Mobile Service (ITU)
The List [...]
Posted in Global Maritime Distress and Safety System, Regulations and Traffic Procedures 
Tags: antenna, Call Signs, coast stations, GMDSS Radio Logbook, Maritime Mobile and Maritime Mobile Satellite Services, Maritime Mobile and Maritime Mobile Service, radio licence, Radio operator's certificates, Radio Ragulations, Radio Safety Certificate, Radiodetermination and Special Service Stations, Ship Stations 
No Comments »Multipath errors. Very similar to the ghosting effect sometimes seen on television reception are caused by reflected signal from surfaces near the receiver. The signal instead of following the straight path to the receivers antenna will bounced off various local obstructions thereby increasing the length of the signal from the satellite to the receiver. The [...]
Fleet F55 is a single integrated voice, fax, and data service which offers a choice of communication option. There some fundamental differences between the two form of communication suiting different types of operational needs:
Mobile ISDN for voice, fax, large files transfer and facilities such as videoconferencing.
Mobile Packet Data Service (MPDS), allowing end-users to remain always [...]
The fleet F33 is the latest addition to the fleet family. It has a single integrated voice, fax and data service offers a choice of communication including:
An integrated data service connecting at a speed of 9.9kbits/sec within the spot beam, fax and batched transmission such as file transfers.
The Mobile Packet Data Service (MPDS) allows end-users [...]
Inmarsat Mini-M uses the Inmarsat_3 series of satellites and these have their antenna and electronics tune for optimum coverage of a particular area on earth, this being known as footprint. These advantage of Inmarsat-3 satellites is their ability to concentrate power on a particular areas of high traffic within the footprint. Each satellite utilizes a [...]
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