According to one exemplary embodiment of the present invention, an apparatus is provided comprising a radio transmitter having an output stage with an adjustable output power level, a measurement circuit configured to measure a radio signal power of the radio transmitter and a control block connected to the measurement circuit wherein the measurement circuit is connected to the output stage of the radio transmitter where the radio signal power is measured; and wherein the control block is configured to adjust the output power level of the radio transmitter based on the measured radio signal power at the radio transmitter output stage.