Receive                 Transmit
Channel     F1 F2   Z1   Z2 Used   F1 F2   Z1   Z2 Used
D         : 1f 1f 01ff 01ff    0   10 10 0087 0087    0
B1        : 1f 1f 1d2b 1d1f   12   1f 1f 1d35 1d2b   10
B2        : 1f 1f 1d25 1d1f    6   1f 1f 1d35 1d25   16