Top: analysis of variance (AOV) periodogram of the Hα radial velocities measured from the quiescent spectra only. Bottom: Hα radial velocities in quiescence (dots) and during the accretion events (triangles) folded on the orbital period. The solid lines are the respective best sine fits (see Table 3). The radial velocity curve of the line wings (triangles) is delayed by 0.18 cycle with respect to the expected motion of the WD, peaking in the blue at orbital phase ∼0.45, which is a defining characteristic of the SW Sex stars in the high state. No phase-binning has been applied. A full cycle has been repeated for clarity.