The maritime industry has consistently evolved to meet the complex challenges of safety and communication through technological innovation. SafetyNET II, developed by Inmarsat, represents a significant enhancement in the transmission of Maritime Safety Information (MSI) and Search and Rescue (SAR) communications. This system builds on the foundation of its predecessor, employing advanced satellite technology and […]

GMDSS Sea Areas For the needs of the G.M.D.S.S applications, sea areas have been world widely characterized as: Sea Area A1. Within the radiotelephone coverage of at least one VHF coast station in which continuous DSC alerting is available. Such an area could extend typically 20- 50 nautical miles from the coast station. Sea Area […]

Every vessel during at sea has to be capable of performing the nine radio-communication functions of the GMDSS, viz: – Transmission of ship-to-shore distress alerts by at least two separate and independent means, each using a different radio-communication service. – Reception of shore-to-ship distress alerts. – Transmission and reception of ship-to-ship distress alerts. – Transmission […]

They are divided into conventional and satellite communications Conventional (terrestrial) communications: They operate in the MF, HF, and VHF frequency areas. They use the digital selective-calling (DSC), radiotelephony, radioteletypy, NAVTEX and RADAR transmitters. Satellite communications: They are conducted via the satellite systems Inmarsat and Compass-Sarsat. Inmarsat: International satellite maritime organization that operates with four geostationary […]

The first venture of man to use the aquatic element for his transportation took place when he observed that some objects could float on the water, and consequently could help him to achieve his purpose. Thus, starting by the tree log and by joining more than one, he constructed the first raft that was gradually […]