Αποτελέσματα Αναζήτησης
The first satellite relayed phone calls were achieved early on in the space age, after the first relay test was conducted by Pioneer 1 and the first broadcast by SCORE in 1958 at the end of the year, after Sputnik I became at the beginning of the year the first satellite in history.
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.
This phone was developed as an integral part of a space-based communications system called Iridium, which began operation in 1998. Conceived, designed, and built by Motorola, the Iridium system provides wireless, mobile communications through a network of 66 satellites in polar, low-Earth orbits.
30 Νοε 2010 · On August 20, 1964, agreements were signed which created the International Telecommunications Satellite Organization (INTELSAT). By the end of 1965, EARLY BIRD had provided 150 telephone “half- circuits” and 80 hours of television service. The INTELSAT II series was a slightly more capable and longer-lived version of EARLY BIRD.
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. Global communications changed forever.
10 Ιουλ 2012 · Telstar 1, which launched 50 years ago today, was the world's first commercial satellite, and a testament to government-industry cooperation
In 1998 Iridium launched its worldwide “canopy” of 64 satellites and rolled out the first truly handheld satellite terminal. Slightly smaller than the early “bag” cellular phone, the Iridium handheld satellite phone would again revolutionize personal portable satellite communications.
