A test setup for measuring the impact of radar antenna covers comprising: - a test antenna configured to generate radar radiation and to receive radar radiation - a radar sensor antenna configured to receive radar radiation emitted by the test antenna and to generate radar radiation to be received by the test antenna - an analyzer unit, wherein the test antenna comprises several antenna elements in elevation and/or azimuth direction, characterized in that the analyzer unit is configured to compare measurement data taken without an antenna cover,which covers the radar sensor antenna, and measurement data taken with the antenna cover, wherein for measuring the angular accuracy effects caused by the antenna cover, the radar sensor antenna is designed to measure the elevation and azimuth angle of the received signal gone through the antenna cover, and the analyzer unit is designed to compare this data with the measurement data of the elevation and azimuth angle of the radar sensor signal not gone through the antenna cover, and that for measuring the antenna beam pattern distortion caused by the antenna cover, the test antenna is designed to measures the radar signals, emitted by the radar sensor antenna, gone through the antenna cover and the analyzing unit is designed to compare this data with the measurement data obtained when the test antenna receives the radar radiation emitted by the radar sensor antenna without going through the antenna cover, and that each of the test antenna elements of the test antenna is provided with a phase shifter connected to a control/processing unit for configuring the phase of the applied signals to create a beam of radar waves that can be electronically steered, for generating the radar radiation identical to radar echoes generated when radar radiation is reflected by a real object. - a test antenna configured to generate radar radiation and to receive radar radiation - a radar sensor antenna configured to receive radar radiation emitted by the test antenna and to generate radar radiation to be received by the test antenna - an analyzer unit, characterized in that the analyzer unit is configured to compare measurement data taken without an antenna cover,which covers the radar sensor antenna, and measurement data taken with the antenna cover, wherein for measuring the angular accuracy effects caused by the antenna cover, the radar sensor antenna is designed to measure the elevation and azimuth angle of the received signal gone through the antenna cover, and the analyzer unit is designed to compare this data with the measurement data of the elevation and azimuth angle of the radar sensor signal not gone through the antenna cover, and that for measuring the antenna beam pattern distortion caused by the antenna cover, the test antenna is designed to measures the radar signals, emitted by the radar sensor antenna, gone through the antenna cover and the analyzing unit is designed to compare this data with the measurement data obtained when the test antenna receives the radar radiation emitted by the radar sensor antenna without going through the antenna cover, and that each of the test antenna elements of the test antenna is provided with a phase shifter connected to a control/processing unit for configuring the phase of the applied signals to create a beam of radar waves that can be electronically steered, for generating the radar radiation identical to radar echoes generated when radar radiation is reflected by a real object.