Historical Traceability of Maritime Satellites

In the late 1960s, the International Maritime Organization (IMO) considered using satellites to provide reliable maritime distress safety and business communication for ships, thus changing the situation that short-wave radio communication was seriously affected by the weather.

From 65438 to 0976, IMO adopted Inmarsat Convention and Inmarsat Operation Agreement after many international conferences.

1976, the United States launched three geostationary satellites, fixed at 15 W (Atlantic), 176.5 E (Pacific) and 72.5 E (Indian Ocean) respectively, forming a global maritime satellite communication network.

1979, Inmarsat Convention and Inmarsat Operation Agreement came into effect.

In July, 65438-0979, Inmarsat, an intergovernmental economic cooperation organization, was established, which developed rapidly and its business spread all over the world, with its member countries growing from more than 20 at first to 89. It aims to provide global, full-time and all-weather maritime satellite safety and business communication services for maritime ships, thus helping to improve and improve the efficiency and management level of maritime distress rescue, ship command and dispatch and maritime public communication.

198 1 1 In February, the European Space Agency launched the "European Maritime Communication Satellite" with larger capacity.

1982, Inmarsat took over the business of the "Inmarsat" system originally belonging to the United States. By the end of 1982, the number of member countries had reached 37. The "European Maritime Communication Satellite" and "Intelsat V" with maritime communication transponder are used (see "Intelsat").

From 1983 to 1984, Intelsat launched "Intelsat V" with maritime communication subsystem. 1979 In July, Inmarsat was established with its headquarters in London.

Since 1985, the use of maritime satellite communication has gradually expanded to aviation and land fields, becoming an all-round communication system for land, sea and air, and was renamed as "International Mobile Satellite Organization" in 1994. According to the convention of the organization, member States designate an entity to participate in the business management and activities of the organization.

Inmarsat was transformed into a joint-stock company from 65438 to 0999. The original international organization retained a small-scale organization called IMSO to supervise the reorganized company to perform public welfare functions.

Inmarsat was successfully listed in early 2005 and has been running well so far. It is INMARSAT's irreplaceable obligation of safe communication in distress that enables the system to expand the commercial market on this basis, so that the public service communication and the commercial market can develop simultaneously and complement each other, thus standing out from many satellite communication systems and becoming the leader in the industry.