LOFAR intensity map (linear scale, level limits at 1 and 150 mJy beam⁻¹) of 3C 236 at 143.6 MHz. Fifteen positive contours are overlaid as solid grey lines with levels at , where σ = 0.6 mJy beam⁻¹, and n increasing from 0 to 14 in increments of 1. One negative contour level at −3σ is overlaid as a dashed grey line. The restoring beam size of 23.81″ × 19.18″ is shown in the lower left corner. High resolution image insets (logarithmic intensity scale, limits at 1, 100 and 500 mJy beam⁻¹, 11.77″ × 6.82″ restoring beam, σ = 0.26 mJy beam⁻¹) of the NW and SE lobes are shown in the top-left and bottom-right corners respectively. Regions of interest are marked with a dashed ellipse and labelled.