MACS J1149 radio maps at 30″ × 30″ resolution. In all the panels, the contour levels are [ ± 3,  6,  12, …]×σ. Top left: 144 MHz LOFAR map (σ ∼ 0.30 mJy beam⁻¹). Top right: 323 MHz GMRT map (σ ∼ 0.30 mJy beam⁻¹). Bottom left: 1.5 GHz JVLA (D array) map (σ ∼ 45 μJy beam⁻¹). Bottom right: 144 MHz LOFAR contours (after the subtraction of the embedded sources) overlaid on the X-ray image of Fig. 1.