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When a racon receives a radar pulse, it responds with a signal on the same frequency which puts an image on the radar display. This takes the form of a short line of dots and dashes forming a Morse character radiating away from the location of the beacon on the normal plan position indicator radar display. The length of the line usually ...
Wi-Fi nodes often operate in infrastructure mode in which all communications go through a base station. Ad hoc mode refers to devices communicating directly with each other, without communicating with an access point. A service set is the set of all the devices associated with a particular Wi-Fi network. Devices in a service set need not be on ...
The term applies to navigating, real-time locating, and positioning support with global, regional or local scope. The term has been applied to traffic, logistics, business administration, and leisure applications. Location awareness is supported by navigation systems, positioning systems, and/or locating services .
The air traffic control radar beacon system ( ATCRBS) is a system used in air traffic control (ATC) to enhance surveillance radar monitoring and separation of air traffic. It consists of a rotating ground antenna and transponders in aircraft. The ground antenna sweeps a narrow vertical beam of microwaves around the airspace.
Vending machines selling ammunition will now be in grocery stores in Alabama, Texas and Oklahoma, a move that has generated mixed feelings from officials in those states.
DuckDuckGo is an American software company that offers a number of products intended to help people protect their online privacy. [5] The flagship product is a search engine that has been praised by privacy advocates. [6] [7] Subsequent products include extensions for all major web browsers [8] and a custom DuckDuckGo web browser. [9]
Situational awareness is important for effective decision making in many environments. It is formally defined as: “the perception of the elements in the environment within a volume of time and space, the comprehension of their meaning, and the projection of their status in the near future”.
On-board diagnostics ( OBD) is a term referring to a vehicle's self-diagnostic and reporting capability. In the United States, this capability is a requirement to comply with federal emissions standards to detect failures that may increase the vehicle tailpipe emissions to more than 150% of the standard to which it was originally certified.