Dynamical PDSs (log₁₀(f²PDS(f)) normalised to total power within a single time bin) for the “isotropic luminosity” calculated as described in Sect. 3.4 for the high-accretion-rate model 3LR. The three upper panels show dynamical spectra for the observer’s inclinations of π/2, π/4, and 0, respectively. White horizontal lines show the spin (lower) and Keplerian frequencies. Lowermost panel: corresponding light curves: i_obs = π/2, π/4, and 0 cases are shown with blue dotted, green dashed, and black solid lines.