Studies Relating to the Design of Open Field EMI Test Sites

Abstract

The design o f open field EM I measurement sites presents a number of questions for which there have not been readily available answers. This paper presents four studies which were made in order to gain needed information, and provide guidance for site design. The subjects to be treated are: I. A simple method for measurement of Reflectance and Attenuation of building materials. II. Required separation between nearby open field sites, and other sources of computer-generated interference. III. 10-meter site errors from nearby reflecting objects. IV. Prediction & measurement o f correlation errors between 3-meter and 10-meter site distances and development o f bands o f confidence around such correlation.