Spectral energy distribution of QS Vir in November, December, and January, which correspond to the top, middle, and bottom panels respectively. Both Stokes I and Stokes V fluxes are presented by spectral window in order to illustrate the frequencies at which we see the most circular polarisation. The fluctuations near the edges of the bands, such as the lower end of S-band and the upper end of X-band, should be interpreted with caution. Large errors and incorrect flux measurements in these ranges are not uncommon.