PSZ2 G099.86+58.45 18″-resolution compact source-subtracted LOFAR and uGMRT images at 144 MHz (left) and 650 MHz(right). White-coloured radio contours at the same resolution are drawn at levels of 2.5σ_rms × [ − 1, 1, 2, 4, 8, 16, 32], with σ_rms,144 = 140 μJy beam⁻¹ and σ_rms,650 = 32 μJy beam⁻¹ the maps noise. The negative contour level is drawn with a dashed white line. The dashed white circle in each map shows the R = 0.5R_SZ, 500 region obtained from M_SZ, 500, with the white cross showing the cluster centre. The positions of the subtracted sources in the cluster region are highlighted with red crosses. The yellow polygon represents the area where the flux densities were measured.