Chapter 9 Communications Circuits 9.93 Attenuation The weakening of the signal over a distance, which occurs normally in all communications is called attenuation Location Location 0 dB --10 dB Figure 9-13 A signal loses strength as the distance it travels increases. This loss of strength is called attenuation. www.gxmu.edu.cn9.9.3 Attenuation The weakening of the signal over a distance, which occurs normally in all communications is called attenuation. Figure 9-13 A signal loses strength as the distance it travels increases. This loss of strength is called attenuation. www.gxmu.edu.cn