Rohde & Schwarz offers a complete test solution to characterize the performance of ultra wideband (UWB) devices. The setup is based on the R&S CMP200 radio communication tester, the UWB OTA box and the R&S ATS800R shielding chamber, which includes a new tilt-tilt positioner. This positioner enables to test the performance of the phase difference of arrival (PDOA) in co-polarization with the test antenna. The fully automated test solution enables design engineers to quickly test and compare various device designs to achieve the most accurate UWB localization.