RHLF of halos with ν_s ≥ 120 MHz (black solid lines) and that of halos with ν_s > 1000 MHz (red lower lines) in two different redshift ranges z = 0.1−0.2 (left panel) and z = 0.3−0.4 (right panel). As an example, dashed lines (in both panels) show the individual contributions of “turbulent” radio halos and “off-state” halos to the LOFAR RHLF. The black and red arrows show the LOFAR and EMU+WODAN sensitivities, respectively, at the considered redshifts.