The AN/SPS-52 is a United States Navy long-range air search 3D radar that is capable of providing contact bearing, range and altitude.

The AN/SPS-52 was a development of the AN/SPS-39, incorporating a new planar antenna, a parametric amplifier, and a wide-pulse feature for longer range.

The array is a collection of rows of slotted waveguides, fed from a feed system running the length of one side of the total wave assembly.

The primary mode is high angle, which provides coverage to approximately 180 miles and elevation up to 45°.

The MTI mode provides coverage up to 70 miles and up to 38 degrees and is intended for high-clutter environments.