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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 ...
Model XAE IFF kit, the first radio recognition IFF system in the U.S. Identification, friend or foe (IFF) is a combat identification system designed for command and control. It uses a transponder that listens for an interrogation signal and then sends a response that identifies the broadcaster. IFF systems usually use radar frequencies, but ...
[22] [23] Jefferies rejected 3, 6, 8, and 9 as "too easily confused" on screen; [23] he eventually reasoned the Enterprise was the first vessel of Starfleet's 17th starship design, hence 1701. [24] The Making of Star Trek explains that USS means "United Space Ship" and that " Enterprise is a member of the Starship Class". [ 25 ]
The aviation transponder interrogation modes are the standard formats of pulsed sequences from an interrogating Secondary Surveillance Radar (SSR) or similar Automatic Dependent Surveillance-Broadcast (ADS-B) system. The reply format is usually referred to as a "code" from a transponder, which is used to determine detailed information from a ...
Track-while-scan (TWS) is a mode of radar operation in which the radar allocates part of its power to tracking a target or targets (up to forty with modern radar) while part of its power is allocated to scanning. [1] It is similar to but functions differently in comparison to its counterparts range-while-search (RWS), long range search (LRS ...
Raybird-3 (ACS-3) is an unmanned aircraft system designed for various long-term missions and ISTAR operations. It corresponds to the class I of NATO classification and the Armed Forces of Ukraine. [a] Created by APC "Skyeton". Raybird-3 is the name of the aviation system for dual-use; ACS-3 is the name of the military version. [3][4]
For instance, the definition and ontology of economics is a primary concern in Marxist economics, [3] but also in other subfields of economics. [4] An example of economics relying on information science occurs in cases where a simulation or model is intended to enable economic decisions, such as determining what capital assets are at risk and ...
The dark web has often been confused with the deep web, the parts of the web not indexed (searchable) by search engines. The term dark web first emerged in 2009; however, it is unknown when the actual dark web first emerged. [11] Many internet users only use the surface web, data that can be accessed by a typical web browser. [12]