Total-power contours at 4.85 GHz and B-vectors of polarised intensity of NGC 2976 a), NGC 3239 b), NGC 4027 c), NGC 4605 d), NGC 4618 e), UGC 11861 f) superimposed on the DSS blue images. The contour levels are as follows: 0.6 a), 0.8 b), 1.5 c), 0.5 e), 1.5 f) × (−5, −3, 3, 5, 10, 15, 20, 25) mJy/beam and 0.45 × (−3, 3, 10, 30, 50, 70) mJy/beam d). The map resolution is 2.5′ HPBW, as shown as a horizontal bar at bottom left. For all the images, a vector of 1′ length corresponds to a polarised intensity of 0.3 mJy/beam. The position of a background source subtracted from emission of NGC 4605 d) is marked by an asterisk (Sect. 3).