Radio (1.4 GHz) – infrared (24 μm) correlation of the sample, showing the VLBA detected sources classified as radio-excess sources by Smolčić et al. (2017b; see text for details). The VLA flux densities have been used for all the plotted sources. The red dots represent the VLBA undetected sources. The yellow triangles represent the VLBA detected sources. The green circles represent the VLBA detected sources classified as radio-excess sources by Smolčić et al. (2017b). The black line represents the linear regression fitting the VLBA undetected sources.