The 8–12 GHz data for MR Ser on 2017 October 11 (left column) and 2017 November 25 (right column). The top panels show the full-band SEDs, the second panels show the full-band light curves, the third panels show the Stokes I dynamic SEDs, and the bottom panels show the Stokes V dynamic SEDs. One flare was detected in the second observation, which was highly circularly polarized.