NetworkingNews.org Attenuation Attenuation is a general term that refers to any reduction in the strength of a signal.
Attenuation occurs with any type of signal, whether digital or analog.
Sometimes called loss , attenuation is a natural consequence of signal transmission over long distances. The extent of attenuation is usually expressed in units called decibels . Attenuation can also be expressed in terms of voltage. The less the attenuation per unit distance, the more efficient the cable. When it is necessary to transmit signals over long distances via cable, one or more repeaters can be inserted along the length of the cable.