Cut-out of the 1.34 GHz JVLA image centered on the HzRG at z = 1.7. The VLA contours at 1.4 GHz (Petric et al. 2003; Nanni et al. 2018) are reported in orange, starting from a 3σ threshold and increasing with a geometric progression. Blue and red contours are the ~2σ hard and soft X-ray diffuse emission, respectively. The four major components of such emission are labeled in black (A, B, C and D). The positions of five of protocluster members discovered by MUSE (m₁ − m₅) are indicated by the green circles (a sixth source is located outside the cut-out, ~45 arcsec northeast from the FRII galaxy core). The positions of the protocluster members discovered by ALMA (a1−a3) are marked by the magenta boxes. The eastern and western lobes are labeled as E-lobe and W-lobe, respectively. The main morphological features of the lobes are also reported, indicated by the black arrows. Radial features originating from the western hot-spot are due to residual phase errors. The light blue circle indicates the z = 6.3 QSO at the center of the J1030 field. The solid black line at the bottom-left corner indicates the angular and physical scale, while the dashed ellipse at the bottom-right corner is the restoring beam of the JVLA image.