CISPR/TR 16-3 is a collection of technical reports from the CISPR 16 series. Background information is provided on the history of CISPR, as well as a historical reference on the measurement of interference power from household and similar appliances in the VHF range. This third edition of CISPR 16-3 replaces the second edition published in 2003 and its Amendments 1 (2005) and 2 (2006). It is a technical revision. The main technical change with respect to the previous edition consists of the addition of a new clause to provide background information on FFT instrumentation.