Abstract: The invention relates to a system which is used to study the electromagnetic behaviour of an antenna or any other wave-emitting or -receiving tool. The inventive system comprises an anechoic chamber which is designed to receive one such electromagnetic tool (10) to be studied as well as the person handling said tool (10). The invention also comprises: at least one analysis antenna (20) which is used to pick up the waves emitted or received by the electromagnetic tool to be studied (10), and means (30) for processing the output signals from said analysis antenna (20). The system further comprises means (40) for displaying a radiation pattern produced for the electromagnetic tool to be studied (10). The invention is characterised in that the radiation pattern display means (40) are disposed inside the anechoic chamber, such that the person handling the electromagnetic tool to be studied (10) can directly observe the effect of his/her handling of the tool (10) on the electromagnetic behaviour thereof.