Today we celebrate the 50th anniversary of Echo 1, history's first passive satellite. NASA's Echo mission began rather poorly. A test launch had exploded ...

This type of satellite only served as a reflective surface: signals transmitted from the Earth were bounced back to the ground. While Echo had the advantage of simplicity, active satellites quickly ...

On this day in tech history, Echo 1A, NASA’s first successful communications satellite, was launched from Cape Canaveral. The launch followed on a similar but unsuccessful attempt by NASA in May 1960 ...

Last week was the fifty year anniversary of the launching of Telstar 1, the first communications satellite. ... Posted in Radio Hacks Tagged echo 1, project echo, satellite, telstar 1.

The reference which he points out had only just been published when we submitted our communication ... Transatlantic Communication Experiment via Echo I Satellite. Nature 190, 709 (1961 ...

In the early 1970s, COMSAT Laboratories developed an "echo canceller" to correct this problem. This invention made communications via satellite similar in quality to local telephone calls and enhanced ...