Amplitude spectra of the optimised frequencies for KIC 7760680 using the single-cosinusoid solution for each of the LC_SAP, LC_PDC and LC_Pápics light curves. The amplitude spectrum (grey) is calculated from the LC_Pápics light curve, such that low-amplitude modes only become significant above the noise after high-amplitude modes have been extracted during pre-whitening. Frequencies extracted below ν ≤ 0.1 d⁻¹ are dominated by instrumental systematics.