ETS-Lindgren's Model 2117 Medium Duty Multi-Axis Positioner is designed to provide smooth rotation of a test object in both theta and phi axes. Typically the model 2117 is used in systems that measure spherical antenna patterns and total effective radiated power of wireless devices, with MAPS units currently in operation at several CATL labs. Options include the SAM Phantom (head) and ETS-Lindgren's Positioning Controller with GPIB and EMQuest Software.