Fourier transforms of two halves (~700 days) of KIC 5807616 data around the F₂ (33.839 μHz) and F₁ (48.182 μHz) frequenciesfrom Charpinet et al. (2011). The green line shows the FT of the Q 5–Q 10 light curves, and the pink line plots the FT of the Q 11–Q 17 light curves. The detection thresholds are plotted with dashed horizontal lines in colors corresponding to FT colors. The gray vertical stripes indicate the ±0.03 μHz frequency scatter region, and the red vertical lines denote the positions of the F₂ and F₁ signals found by Charpinet et al. (2011) (see the text for details).