The primary problem encountered is signal loss, also known as attenuation. Attenuation can be due to absorption, scattering, or bending losses, affecting the quality and speed of data transmission. Attenuation in fiber optic cables is the reduction in signal strength during. The attenuation is a telecommunication word which refers to reduction within signal strength. This can occur while transmitting signals over lengthy distances. It can be calculated in dB (decibels) in terms of voltage. In this article, you will learn how to define attenuation, type, measure, calculate and understand attenuation in fiber optic cables and networking. Although attenuation is significantly lower for optical fiber than for other media, it still occurs in both multimode and.