For the RF coaxial cables, we use high quality copper with enough thickness to ensure the minimum transmission loss. For the connectors and adapters, we use copper for inner conductor instead of zinc-alloy, to make sure the minimum PIM value. For the components like directional coupler, hybrid coupler and RF power splitter, we use silver electrical plating for the inner surface, to minimum the insertion loss and the PIM value. For the indoor antenna, we use high quality elements and pig tail cables to ensure the long-term reliability. We focus on every process of the quality control and the target is to free you from the trouble of network KPI issues like VSWR alarm, RTWP/RSSI alarm, throughput issue and PIM issue.