combined satellite communication system
71Parabolic antenna — A parabolic satellite communications antenna at Erdfunkstelle Raisting, the biggest facility for satellite communication in the world, in Raisting, Bavaria, Germany. It has a Cassegrain type feed. A parabolic antenna is an antenna that uses a… …
72Electrical telegraph — A printing electrical telegraph receiver, and a transmitter key at bottom right An electrical telegraph is a telegraph that uses electrical signals, usually conveyed via telecommunication lines or radio. The electromagnetic telegraph is a device… …
73High Frequency Active Auroral Research Program — HAARP is often confused with Project HARP, the High Altitude Research Project (a joint project of The Pentagon and the Canadian Department of National Defence).The High Frequency Active Auroral Research Program (HAARP) is an investigation project …
74Color television — Title card for NBC, promoting their broadcast in RCA color . Color television is part of the history of television, the technology of television and practices associated with television s transmission of moving images in color video. In its most… …
75Sukhoi Su-30MKI — Infobox Aircraft name= Su 30MKI type= Air Superiority Fighter, Multirole Fighter, Heavy Class Fighter, Long Range Fighter, Strike Fighter crew= 2 manufacturer= Sukhoi HAL caption= Su 30MKI in Service with the Indian Air Force designer= first… …
76Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism …
77Deployable Joint Command and Control — DJC2 Program logo The Deployable Joint Command and Control system, commonly known as DJC2, is an integrated command and control headquarters system which enables a commander to set up a self contained, self powered, computer network enabled… …
78Phase-shift keying — Passband modulation v · d · e Analog modulation AM · …
79Mir — This article is about the Soviet/Russian space station. For other uses, see Mir (disambiguation). Mir …
80Chinese space program — This article is about the Chinese space program in general. For the current Chinese space agency since 1993, see China National Space Administration. The launch of Tianlian, Xichang Center The space program of the People s Republic of China is… …
