An information handling system includes a data radio connected to an antenna system, and a proximity sensor connected to a proximity sensor probe. An antenna controller (AC) may determine whether a capacitance measurement coarsely indicates a specific antenna configuration or a coarse fault; and configure, when the capacitance measurement indicates a coarse fault, a data radio to operate at a failsafe radio transmit power level; determine, when the capacitance measurement indicates the specific antenna configuration, whether a detail capacitance measured with respect to the antenna system indicates proper antenna configuration or an out-of-range value; configure, when the detail capacitance indicates proper antenna configuration, the data radio to operate normally; and configure, when the detail capacitance indicates an out-of-range value, the data radio to operated in a mode where a performance parameter of the data radio is particularly monitored.