Analysis of the rotation period of TOI-1430 carried out on the HARPS-N (five upper panels) and HIRES (three bottom panels) spectroscopic series shown in Fig. 3 (after the subtraction of the long trend). Panels show the GLS periodograms extracted from the RV, log ${{\text{R}}^{\prime }}_{\text{HK}}$, Hα, and BIS time series. Red dashed lines indicate the frequency of the peak. The window function periodograms are also reported.