A small turntable, also known as a rotary positioner, is commonly used in RCS (Radar Cross Section) and antenna measurement applications to rotate and position objects under test or measurement devices.

In RCS testing, the small turntable is used to rotate the target, allowing the radar system to measure the electromagnetic radiation that is scattered from the target at different angles. This helps to determine the target’s radar cross section, which is a measure of how detectable the target is by a radar system.