Radio luminosity evolution at 1.4 GHz with respect to the core-passage time during the cluster merger event of Fig. 3 computed within spherical regions of radii R_200,1 (t) (solid line), R_vir,1 (t) (dash-dotted line), and 2R_200,1 (t) (dashed line) corresponding to the dotted circles shown in the last column. Similarly, letters indicate the different evolutionary stages shown in the previous figure.