GZ1D D086 Y12:  14/ 19.2/ 23 channels used by                     
GZ1D D087 Y12:  14/ 19.5/ 23 channels used by                     
GZ1D D088 Y12:  15/ 19.4/ 23 channels used by                     
GZ1D D089 Y12:  14/ 19.4/ 24 channels used by