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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 other electromagnetic frequencies, radio or infrared, may be used. [1]
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 ...
The original design had three such "modes", Mode 1 was triggered by the interrogator by sending the two pulses 3 μs apart (±0.2 μs), Mode 2 was 5 μs and Mode 3 was 8 μs. [10] The response to these interrogations remained simple; a successful interrogation on Mode 1 or 3 caused a single pulse to be sent in reply, very shortly after the ...
Transponder in a private aircraft squawking 2000. Secondary surveillance radar ( SSR) [1] is a radar system used in air traffic control (ATC), that unlike primary radar systems that measure the bearing and distance of targets using the detected reflections of radio signals, relies on targets equipped with a radar transponder, that reply to each ...
Luisa Castro (2024 -) Children. 1. Andrés Felipe Robledo Londoño (born 12 December 1986), [1] better known as Reykon " El Líder " " Pel mazo ", is a reggaeton performer from Colombia. [2] He is considered one of the biggest proponents of Latin America's reggaeton music genre. [3] He is from Envigado, Antioquia.
KLJ-7. In look down mode 100 km for 5m 2 RCS (V1) [1] 120 km for KLJ-7A. The KLJ-7, also referred to as the Type 1478, is an X band airborne fire-control radar (FCR) developed by Nanjing Research Institute of Electronic Technology (NRIET), also known as the China Electronics Technology Company's (CETC's) No. 14 Research Institute. In December ...
A Mode V abort was only planned for use during the Apollo-Soyuz Test Project launch. In the event of an early S-IVB shutdown, the CSM RCS thrusters would be used to insert the entire stack (including the docking adapter) into orbit. The time window for a Mode V abort was only 1.5 seconds before nominal S-IVB cutoff. Saturn V specific abort modes
Waymo is recalling more than 600 self-driving vehicles after one of them struck a telephone pole in Arizona. The recall includes 672 vehicles, which is the entire fleet. The National Highway ...