Indicates the level of compressed beamforming-matrix explicit feedback the station can return, from inCapable(0) through aggregated variants, default 0. Note: this object's own source DESCRIPTION text in the MIB is copy-pasted verbatim from the non-compressed sibling object (dot11ExplicitNonCompressedbeamformingMatrixFeedbackOptionImplemented) and still reads "non-compressed beamforming matrix" rather than "compressed"; based on this object's own name and its position as entry 11 (immediately after the non-compressed entry 10), it is being documented here as the compressed-matrix feedback counterpart, since compressed feedback uses fewer bits to convey the same beamforming matrix and this is the standard compressed/non-compressed pairing in the 802.11n TxBF config group.