A method of making screen room interference measurements

IN THE past, interference measurements have usually been made in the screen room as they would be made in ¿free space,¿ i.e., both the operator and all the measuring equipment were placed inside the room with the radiating equipment. Under these conditions the resulting measurements had to be empirically correlated with free-space measurements. Furthermore, because of the presence of the operator and measuring equipment in the room, the results obtained were often difficult to reproduce. It was thus apparent that a more reliable method of making screen room measurements was desirable. Work to this end was initiated by the Coles Signal Laboratory by means of a study contract.