A Power Line Carrier (PLC) Repeater is a crucial device in smart metering and power distribution networks, designed to extend and enhance signal transmission over power lines. It amplifies and retransmits data signals, ensuring reliable communication between smart meters, data concentrators, and utility control centers. By overcoming signal attenuation and network interference, the repeater significantly improves the stability and coverage of the PLC communication network. It supports various communication protocols and seamlessly integrates into existing Advanced Metering Infrastructure (AMI) systems.