ALT POWERLINE U.A.R.T | Concept Milestone The current passive‑injection implementation achieves stable data transfer rates up to 2400 kbps on the existing powerline environment. This confirms that the signaling approach is viable under typical line noise and load conditions. The next development phase focuses on transitioning from passive coupling to an active injection architecture. This will allow controlled drive strength, improved signal integrity. A key objective is to isolate sensitive system loads from the modulated bus, preventing unintended behavior caused by communication‑induced voltage fluctuations. On the controller side, the MCU will generate a 38 kHz carrier, which will be modulated by the active injection driver according to the UART bitstream. This milestone establishes the foundation for a more robust and scalable powerline communication system as the project progresses toward active modulation and improved load isolation.