Sequence of total (contours) and polarised (colour-scale) intensity images of PKS 1510–089 at 86 GHz, with a beam of FWHM dimensions 0.10 × 0.07 mas² along PA = −15°. The global total intensity peak is 1137 mJy beam⁻¹ and the global polarised intensity peak is 74 mJy beam⁻¹; the contours are 0.5%, 1%, 2%, ...64%, and 95% of the global intensity peak. Black line segments within each image show the direction of the polarisation electric vector; the length of the segment is proportional to the polarised intensity values; the black vertical line indicates the position of the core, A0; the blue, red, yellow, and grey circles mark positions of knots K15, K16, A2, and A1, respectively, according to the modelling.