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In radio communication, a spurious emission is any component of a radiated
radio frequency Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around to around . This is roughly between the u ...
signal, the complete suppression of which, would not impair the integrity of the modulation type, or the information being transmitted. A radiated signal outside of a
transmitter In electronics and telecommunications, a radio transmitter or just transmitter (often abbreviated as XMTR or TX in technical documents) is an electronic device which produces radio waves with an antenna (radio), antenna with the purpose of sig ...
's assigned channel is an example of a spurious emission. Spurious emissions can include harmonic emissions,
intermodulation Intermodulation (IM) or intermodulation distortion (IMD) is the amplitude modulation of Signal (electrical engineering), signals containing two or more different frequencies, caused by non-linear, nonlinearities or time variance in a system. ...
products and frequency conversion products.ITU, 1.145 Spurious emission
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See also

* Interference (communication) * Radio spectrum pollution


References

Radio technology {{radio-comm-stub