Cable loss意思

"Cable loss" is a term used in the context of electrical and telecommunications systems to refer to the energy or signal loss that occurs in a cable due to various factors such as resistance, radiation, and reflection. When an electrical signal or current travels through a cable, some of the energy is dissipated as heat due to the cable's resistance, and some of the signal strength is lost as the signal travels down the length of the cable. This results in a reduction in the strength or quality of the signal at the receiving end of the cable, which is known as cable loss.

Cable loss can be a significant issue in long cable runs, high-frequency signals, and in applications where maintaining signal strength is critical, such as in broadband internet, satellite communications, and high-speed data transmission. To mitigate cable loss, engineers may use techniques such as amplifying the signal, using cables with lower resistance, or employing repeaters or other signal boosting devices to regenerate the signal along the cable run.