I have had great support , here's a note
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Dear Sir
OK,I agree with you ,will check with R&D .
Maybe 57600 is right ,then just need change internal programme .
Any further questions please feel free to contact me .
Best regards,
---------------------------------
Vivien Liu/???
Marketing Department
RIGOL Technologies,INC.
TEL:xxxxxxxxxxxxxxx
Email:xxixxxxxxxxx
http://www.rigol.com=============================
FW fixed