The satellites sit at an altitude of 35,786 kilometres (22,236 mi) a noticeable delay is present while making a phone call or using data services due to the large distance from users. Satphones are popular on expeditions into remote areas where terrestrial cellular service is unavailable.A fixed installation, such as one used aboard a ship, may include large, rugged, rack-mounted electronics, and a steerable antenna on the mast that automatically tracks the overhead satellites. More recent satellite phones are similar in size to a regular mobile phone while some satellite phones have no distinguishable difference from an ordinary. Early satellite phone handsets had a size and weight comparable to that of a, but usually with a large retractable. The advantage of a satphone is that its use is not limited to areas covered by cell towers it can be used in most or all geographic locations on the Earth's surface.The mobile equipment, also known as a terminal, varies widely. Satellite phone in use in, in April 2005 after theA satellite telephone, satellite phone or satphone is a type of that connects to other phones or the by radio through orbiting instead of terrestrial, as do.
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