Echo-sounder noise filters

Noise filters for fishfinders are used to attenuate certain disturbance factors.

Noise filters or anti-clutter filters are present in some fishfinders and are used to attenuate certain disturbances, often caused by water turbidity.

In some fishfinders these filters are automatically activated, in others a large set of these filters is available so that the user can enable them according to the reading problems that are encountered.