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Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1] – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the ...
Conceptual of the ADS-B system, illustrating radio links between aircraft, ground station and satellite. Automatic Dependent Surveillance–Broadcast (ADS-B) is an aviation surveillance technology and form of electronic conspicuity in which an aircraft (or other airborne vehicles such as drones approved to fit "ADS-B Out") determines its position via satellite navigation or other sensors and ...
Aircraft The aircraft involved when still in service with Condor (1976). HL7442 at Honolulu International Airport in September 1981, 2 years before the crash The aircraft flying as Korean Air Lines Flight 007 was a Boeing 747-230B jet airliner with Boeing serial number 20559. The aircraft first flew on January 28, 1972 and was delivered on March 17, 1972, to West German airline Condor with the ...
The system first went down around 1:15 p.m. local time on Tuesday, before being restored around 3:15 p.m. Original article source: Massachusetts reveals cause of 911 outage. Show comments.
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The 1980s (pronounced "nineteen-eighties", shortened to "the '80s" or "the Eighties") was a decade that began on January 1, 1980, and ended on December 31, 1989.. The decade saw a dominance of conservatism and free market economics, and a socioeconomic change due to advances in technology and a worldwide move away from planned economies and towards laissez-faire capitalism compared to the 1970s.
The National Warning System (NAWAS) is an automated telephone system used to convey warnings to United States -based federal, state and local governments, as well as the military and civilian population. [1] The original mission of NAWAS was to warn of an imminent enemy attack or an actual accidental missile launch upon the United States.
Liveuamap. Live Universal Awareness Map, commonly known as Liveuamap, is an internet service to monitor and indicate activities on online geographic maps, particularly of locations with ongoing armed conflicts. [1] It was developed by the Ukrainian software engineers from Dnipro Rodion Rozhkovskiy and Oleksandr Bilchenko.