This object indicates the level of calibration supported by the implementation. The semantics are follows. 'inCapable' - This station can't participate in a calibration procedure initiated by another station. 'unableToInitiate' - This station can involve in calibration, but cannot apply reciprocity correction vector received from the initiator and cannot initiate calibration. 'ableToInitiate' - This station can initiate calibration but cannot apply reciprocity correction vector received from the initiator. 'fullyCapable' - This statin can participate in a calibration procedure initiated by another station, can respond to a Sounding PPDU and provide a MIMO channel measurement report in response to the receipt of a Sounding PPDU. The station can also apply reciprocity correction vector received from the initiator of calibration response.