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The AN/SPS-52 is a three-dimensional air search radar with electronic frequency scanning (FRESCAN) in elevation and mechanical rotation of the antenna in azimuth.

It is an improved AN/SPS-39, using a planar antenna and having a longer range. The maximum range is 60 nm (111 km) against small, high-speed targets, and out to much greater distances against large, high-flying aircraft.

The antenna is the AN/SPA-72B planar array, tilted back at an angle of 25 deg from the vertical,...

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