Frequency formal error. Left: 4.9 Rs. Right: 9.9 Rs. Hh/Ht and T6 are relatively stable during the whole sessions. Limited by the visibility, T6 only participated in a 5 minutes observation on July 29 and a 75 minutes observation on 2017 August 3. There are many abnormal breaks in the data. The receiving system’s response to the Sun in the sidelobes is under investigation.