Αποτελέσματα Αναζήτησης
A satellite telephone, satellite phone or satphone is a type of mobile phone that connects to other phones or the telephone network by radio link through satellites orbiting the Earth instead of terrestrial cell sites, as cellphones do. Therefore, they can work in most geographic locations on the Earth's surface, as long as open sky and the ...
Starting with the Iridium satellite phone, Iridium was the first handheld satellite phone to offer planetary coverage. Originally the Iridium satellite constellation consisted of 77 active satellites that orbited the earth from pole to pole.
7 Μαΐ 2017 · The purpose of this article is to draw your attention to some of the key advances that shaped the history of satellite communication. Each one of these events took us a step closer to today when we have more than a thousand satellites in orbit.
Telstar 1 was the pioneering satellite for transatlantic communications and facilitated the transmission of a television signal from Andover Earth Station in Maine to the Pleumeur-Bodou Telecom Center in Brittany, France.
So began the first phone call ever routed through a commercial satellite, designed and flown by AT&T, Bell Labs, NASA, and the English and French governments. (Despite the fact that the satellite...
TV and telephone communication signals were relayed and boosted to get back down to Earth. On July 10, 1962, AT&T Bell Telephone Laboratories (now Nokia Bell Labs) and NASA launched Telstar 1, the first communications satellite from Cape Canaveral.
The rise of the telephone changed the way we live, work and play, and contributed to the invention of television, computers, pagers, fax machines, e-mail, the Internet, online stock trading and more. Explore our timeline below highlighting just a few of these extraordinary leaps of innovation and invention.
