Amplitude of the TTV measurements over the period ratio for all individual simulations. The red points indicate all simulations for which the determined period has a FAP < 10^-3, which are the simulations with high TSNRs (see Fig. 8). The black dashed line indicates the maximum amplitude values given by Fig. 5. The arrows indicate the localized drops in amplitudes at integer period ratios (see Sect. 5.2).