Abstract: A support structure for a device under test, (DUT), allows rotation, through a rotatable inner compartment applicable to fix, rotate and/or move the DUT. The inner compartment is manufactured of polymethacrylimide or other substantially RF-transparent material, and the inner compartment encloses, holds or attaches to the DUT, so that the inner compartment is made immobile relative to the DUT. The inner compartment is rotated by a first motor, so the DUT is placeable in a desired alignment angle between two conducted measurements requiring two different alignment angles. When measuring, the inner compartment remains in place and fixed with the DUT. A second motor is applicable for linear movement of the arrangement. A testing method for the DUT tests different temperatures by using two concentric compartments, and by feeding air having a desired temperature to the intermediate volume, and having through-holes on the wall of the inner compartment.

Abstract: The present invention discloses a test method and arrangement for testing GNSS signals within a test chamber. The test chamber inner walls are supplied with transmitting antennas supplying simulated satellite signals, originating from a signal generator. Dynamic satellite movements are simulated by interpolating several transmitted signals in order to create a single true satellite transmission signal. All visible satellites are taken into account in order to create simulated GPS signals across the whole virtual sky. Phantom objects may be used near the device under test and the phantom object may be moved or rotated in preset patterns within the test chamber. Radio channel information can be modelled according to several different real-life environments, and also reflections from any surfaces and different multipath options are taken into account in the modeling, and also in the transmission antenna angles towards the device under test.

Abstract: The present invention discloses a test method and arrangement for testing GNSS signals within a test chamber. The test chamber inner walls are supplied with transmitting antennas supplying simulated satellite signals, originating from a signal generator. Dynamic satellite movements are simulated by interpolating several transmitted signals in order to create a single true satellite transmission signal. All visible satellites are taken into account in order to create simulated GPS signals across the whole virtual sky. Phantom objects may be used near the device under test and the phantom object may be moved or rotated in preset patterns within the test chamber. Radio channel information can be modelled according to several different real-life environments, and also reflections from any surfaces and different multipath options are taken into account in the modeling, and also in the transmission antenna angles towards the device under test.