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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.
Learn about the meaning and usage of HTTP response status codes, which are issued by a server in response to a client's request. The codes are classified into five categories: 1xx, 2xx, 3xx, 4xx, and 5xx.
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 ...
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.
Learn about the history and usage of the International Code of Signals, a system of flags and codes for maritime communication. The code includes a standardized alphabet and numerals, as well as messages for safety of navigation and related matters.
Q code is a collection of operating signals for commercial and amateur radio communication. It includes codes for questions, answers, notices, meteorology, and other topics, with different ranges for aeronautical, maritime, and all services.
Ten-codes are abbreviated phrases used by public safety officials and CB radio enthusiasts to communicate quickly and clearly. Learn about the history, meaning and usage of ten-codes, such as 10-4 (understood), 10-33 (officer needs help) and 10-7 (out of service).