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A radar beacon (racon) is a device that returns a distinctive signal when triggered by a radar, providing range, bearing and identification information. Learn about the principle of operation, the characteristics, the applications and the proposal for enhanced RACON.
A transponder code is a four-digit code used by aircraft to identify themselves to air traffic control. This list shows the codes used in various countries and situations, such as emergency, VFR, IFR, and oceanic airspace.
10-4 is a police code for "okay" or "acknowledged" in the United States. Learn about the origin, types, and examples of police codes, such as California's Hundred Code and 10-codes.
In the debut episode of “Distractible,” the guys discuss all things hair-related — including talking about the dangers of hair removal and imagining a sci-fi world in which an elite class ...
Wikipedia is a multilingual online project that provides free access to information on various topics. You can browse articles, images, news, and more on the main page or explore other areas and languages of Wikipedia.
Learn the history and usage of the most widely used set of clear-code words for communicating the letters of the Roman alphabet, such as Alpha, Bravo, Charlie and Delta. The code words are also known as NATO spelling alphabet, ICAO phonetic alphabet and radiotelephony spelling alphabet.
Learn about the standard codes for the names of countries and their subdivisions, maintained by the International Organization for Standardization (ISO). Find the ISO 3166-1 alpha-2, alpha-3 and numeric codes, the ISO 3166-2 subdivision codes and the Internet country code top-level domains for each of the 249 countries.
Bead Window is a code word used by various military forces to indicate the last transmission potentially disclosed unauthorized information. It is one of the American standardized brevity code words for multiservice operations and does not include words unique to single service operations.