Spurious emission

4-1-070

Emission on a frequency or frequencies which are outside the necessary band, and the level of which may be reduced without affecting the corresponding transmission of information. Spurious emissions include harmonic emissions, parasitic emissions and intermodulation products, but exclude emissions in the immediate vicinity of the necessary band, which are a result of the modulation process for the transmission of information.

Reference: I.T.U.

Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

English