92N2
The 92N2 (NATO designation: "Grave Stone") is an X-band (IEEE designation) or I/J-band (NATO designation) missile defense radar with an instrumented range of 220 nautical miles (approximately 400 km). It serves as a target tracking, missile guidance, and illumination radar for the SA-21 "Growler" theater defense missile system (Russian designation: S-400 "Triumf"). The radar can simultaneously track up to 100 targets in track-while-scan mode, engaging six of them. It features a phased array antenna with an aperture of approximately 2.75 m² and utilizes a high-power traveling wave tube in its transmitter, which offers variable pulse duration. The 92N2 is a direct successor to the 30N6E "Flap Lid" engagement radar used with the S-300 (SA-10A Grumble) system, and it may be a variant of the 92N6 radar.
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