The theoretical light curve of radio afterglow of a typical Pop III.2 GRB at z ~ 10. We show the evolution of afterglow flux F(mJy) as a function of time t (days) for typical parameters: isotropic kinetic energy E_iso = 10⁵⁴   erg, electron spectral index p = 2.5, plasma parameters ϵ_e = 0.1, ϵ_B = 0.01, initial Lorentz factor γ_d = 200, interstellar medium density n = 1      cm^-3, for the range of frequencies: 500 MHz (dashed brown line), 1.4 GHz (dashed red line), 10 GHz (dashed black line), in comparison with flux sensitivity as a function of integration time, t_int(days) for SKA (dot-dashed green line), EVLA (dot-dashed orange line), LOFAR (dot-dashed blue line) and ALMA (dot-dashed purple line).