State of EMC technology in the United States

Since the days of World War II when shielding of metallic radio rooms consisted of steel wool packed in holes, to the late 1950s and early ´60s when measurement of a microsecond pulse was considered to be extremely fast, EMC technology in the US was a gradual evolution. Two major regulatory developments later changed that. In 1981, the FCC gave the community its wake-up call and in 1996 the European countries, under the auspices of uniting economically (at least in theory) enacted regulations that dictated the future of EMC testing, not only in Europe but in the US and the rest of the world. The EC92 enforcement was postponed but became actuality as EC96 and almost every US manufacturer of electronics equipment became subject to testing for EMC-or electromagnetic compatibility-the subject of this study