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Dove-OSCAR 17 is one of the results of the so-called Microsat project by AMSAT, manufactured in the 1980s by the civil and electric engineer Junior Torres de Castro (amateur radio operator with callsign PY2BJO), who had been developing his ideas since 1957.
The radio emissions were discovered before the X-rays (they have been detected since the 1950s), and there is even a citizen astronomy project organized by NASA called Radio Jove for anyone to listen to Jupiter's radio signals. [13] [14] Kilometric radio radiation was not detected until the Voyager flybys of Jupiter in the late 1970s. [14]
Jones Radio Networks, the largest independent radio network, provided many programming options for local radio stations. The company provided many satellite-driven formats to affiliate stations, mostly in small & mid-size markets and on major market HD Radio subchannels, however they can also be used on some major market stations as alternate or permanent programming.
AMSAT-OSCAR 7, or AO-7, is the second Phase 2 amateur radio satellite constructed by the Radio Amateur Satellite Corporation . It was launched into Low Earth Orbit on November 15, 1974 and remained operational until a battery failure in 1981. After 21 years of apparent silence, the satellite was heard again on June 21, 2002 – 27 years after ...
Explorer 49 (also called Radio Astronomy Explorer-2, RAE-B) was a NASA 328 kg (723 lb) satellite launched on 10 June 1973, for long wave radio astronomy research. It had four 230 m (750 ft) X-shaped antenna elements, which made it one of the largest spacecraft ever built.
St.GIGA is credited as being the world's first digital satellite radio station. The Satellaview has received praise for being ahead of its time, particularly for St.GIGA's method of distributing and broadcasting high-quality audio and recordings. Its music has also inspired other Japanese radio stations and musicians, such as Yoshio Ojima.