Information satellites are specialized satellites that utilize radio waves for telegraphy, telephony, fax, broadcasting, and television transmission. They are equipped with specialized information devices, including transceivers and transmission equipment. Information satellites must be launched into a geostationary orbit approximately 35,860 kilometers above the Earth.
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Radio Satellite |
A single information satellite can cover approximately one-third of the Earth’s surface. Therefore, by evenly distributing three satellites in geostationary orbit, global communication can be achieved.
Due to its extensive coverage area, long-distance communication capabilities, high capacity, excellent transmission quality, reliability, and significant flexibility, information satellites have become one of the advanced methods of modern radio communication. Currently, the international information satellite organization includes over 100 participating countries. There are more than ten satellites in geostationary orbit, forming a global communication network. This network, alongside over 1,000 ground stations located worldwide, handles over 60% of international radio traffic and supports transoceanic television broadcasting, with more than 20 countries also leasing transmission services. It serves as a means of domestic communication for foreign nations.
Today, there are aviation authorities in the United States, Russia, and Europe. Countries such as Vietnam and Japan have mastered the technology for launching geostationary satellites.
