Signal-to-noise ratios in the BS band for the Scan Map mode. Top: signal-to-noise ratio of the simulated sources as a function of N_S and the input flux density. Middle: signal-to-noise ratios predicted on a grid by the SVM regression model based on the simulations shown in the top figure. Bottom: signal-to-noise ratios for the real sources predicted by the SVM regression model. In each panel, the signal-to-noise values are shown by the colours on the same logarithmic scale. Figures for all bands and observing modes are shown in Fig. B.2.