DC microgrids contain DC power sources, storage, and loads. These microgrids use low data-rated communication to manage the DC voltage and current. The student engineering team have simulated and tested an in-band communications mechanism for use on unshielded DC power wires. This mechanism uses transceivers designed for unlicensed wireless communication using deliberately reduced signal power, in order to minimize radio frequency interference. The results of this work will be contributed to relevant IEEE 2030.10 and Open DC Grid standards.