Statistical Correlation Between Field Strengths at an Open Area Site and in an Absorber-Lined Chamber

Abstract

In determ ining com pliance with the radiated em ission limits for com puting devices in Part 15 subpart J o f the FCC rules, a site other than an open area test site may be used if the results obtained at the alternative site are correlatable to open area test site results. This docum ent describes a statistical procedure for calculating the relationship betw een field strength m easurem ents perform ed in an absorber-lined shielded enclosure and those m ade at an open area test site. T he rationale for using a statistical approach is g iven.