The shielding attributes of components in a CATV system are critical to system performance. Ingress and egress issues can have detrimental effects on the overall performance of the system from both regulatory and quality perspectives. Ingress issues can cause problems with television picture quality, and the effective transfer of data by allowing spurious signal into the system.
It is the goal of this document to address the passive and active devices in the system and how to properly gauge their performance in this critical area.