Map PCA transfer function T(k) as a function of the voxel S/N, with the different k-scales shown as differently colored lines. The equivalent boost used to the fiducial CO model is shown as the top x-axis. Modes with k-values that fall within the analysis bounds are shown as solid, while modes outside the scope of COMAP Season 2 are shown as striped. The horizontal green line shows the average transfer function in the low-S/N regime, which is 0.96. The vertical blue line shows the S/N that the maps would have if the fiducial model of Chung et al. (2022) perfectly described the true CO signal.