Satellite phones have made communication less difficult in places which do not have handset network coverage. The sat mobile phones make use of a coverage of LEO satellites that are constantly hovering above the Earth's surface. These satellites are connected together and are in contact with ground based sensors generally known as gateways. They are the ground stations keeping track of the satellite activities. The satellite handsets connect to the satellites and send data to other mobile phones through the satellites. The satellites really become the medium of data transfer for sat phones.
The main satellite phone networks of the world are the Globalstar and also the Iridium satellite networks. Globalstar possesses around 44 working satellites till date and Iridium has around 66 operational satellites.
The LEO satellites hover above the sky at extremely high speeds and fly at low altitudes from the Earth's surface. The average altitude of these satellites is approximately 400 to 700 miles above the Earth's surface.
This service of monitoring has many applications. For military uses they can be used to find phone signals from enemy installations. Bombs are fried in accordance to the estimates from sat phone monitoring. For those mountaineers , monitoring is absolutely necessary because with it they can stay connected with the rest of the world. Their position in the globe can be estimated from this technology. It helps them to navigate from place to place. Aircrafts use satellite tracking to keep on tracking of their flight trajectory and ships use satellite monitoring as well for different applications.
Satellite phone tracking makes things easier for international travelers. Advanced armies and air forces around the globe are using satellite tracking for surveillance and missions. This device helps in tracking international terrorists and their hideouts can be bombed correctly.
Marine engineering firms lean on this technology for high risk operations such as deep sea drilling and mining. It has certainly revolutionized our lives with this fabulous technology.
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