Rigol DS1104Z-S 4-channel oscilloscope, Digital Storage oscilloscope, DS1104Z-S 用户手册
产品代码
DS1104Z-S
RIGOL
DS1000Z User’s Guide
7-14
8. Error Information during Decoding
When the ACK (ACKnowledge Character) is not met, “?” error marks as shown in
the figure below will be displayed.
the figure below will be displayed.
ACK=1