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automatic noise limiter (ANL)

The automatic noise limiter (ANL) is an electronic circuit used in mobile radio equipment, in CB equipment and shortwave receivers.

With the automatic noise limiter and the directly related noise blanker, on the one hand the level of the useful signal is increased, which improves the signal-to-noise ratio (S/N). In addition, the bandwidth is reduced so that not so many high frequencies are reproduced.

In addition, there are electronic circuits that allow you to set a level at which transients, static noise spikes, electrostatic interference from lightning discharges, or crackling noises from electrical devices are clipped.

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Englisch: automatic noise limiter - ANL
Updated at: 31.07.2008
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Translations: DE