Comparison of fitted non-thermal radio scale heights in the VLA L band and LOFAR HBA. For each strip of each galaxy, the radio scale height in the HBA data is plotted against its L-band counterpart. Individual galaxies are colour coded as indicated in the legend. The solid black line represents the identity relation one would expect in escape-dominated halos. Dashed lines indicate expected scale height ratios for loss-dominated halos: dark blue represents energy-independent diffusion, gold represents energy-dependent diffusion, and red represents advection.