Wednesday, June 3, 2009

Satelite Phones


Satellite Phone Service

There are different types of satellite phones base on what satellite type of satellite their provider is using.

Geosynchronous satellite service

Herman Potocnik initially introduced Geosyncronous satellite service in the year 1928, which was later on known to the public in 1945's Wireless World written by Arthur C. Clarke.

Syncom 2 was launched on the year 1963 from Cape Canaveral. It is the primary geosynchronous satellite, which hosted the very first satellite telephone call. Syncom 3 shortly followed it in the year 1964 which became the primary communication geostationary satellite. Syncom 3 broadcasted the Summer Olympics held in Tokyo in the same year.

Geosynchronous satellites are located on top of the equator and stands 22.300 miles form the earth's surface. These satellites keep a permanent location and do not require tracking antennas, which are more expensive.

The satellite's altitude works to its disadvantage causing noticeable minimal call delays and signal disruptions on covered areas such as forests.

Low Earth Orbit satellite service

Low Earth Orbit (LEO) satellite service was introduced in the late 1990's and is based in the United States. Its owner initially sold it after failing to get enough number of subscribers to finance the expensive satellite and operating costs. It is currently run and operated by a new management.

LEO satellite service currently provides better and higher quality service. These satellites course on their low altitude orbits at a fast speed that provides absolute coverage area from every LEO satellite.

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