Guest editorial - EMC twenty years ago (keynote address for the 1978 International IEEE Symposium)

The author was asked to speak on the subject of "EMC (electromagnetic compatibility) twenty years ago." He has organized his talk on three general areas: 1) organizations, 2) specifications and standards, and 3) measuring instruments. Initial efforts toward organizing a group on radio frequency interference (RFI) are recounted. Then the development of specifications and standards, including the first attempt within the US military to achieve a joint standard on the measurement of interference is discussed. FInally, various early interference measuring instruments are described.