a) The total power contours of NGC 660 at 4.86 GHz (natural weighting) superimposed on the DSS blue image. A large warped ring in the NS direction is visible. The contour levels are (−3, 3, 5, 8, 12, 20, 35, 80, 150, 250, 400, 700, 1500, 4000)  ×  26.4 μJy/beam. b) The total power contours and B-vectors of polarized intensity of the disk of NGC 660 superimposed on DSS blue image. The contour levels are the same as for a). A vector of 10′′ length corresponds to the polarized intensity of 100.0 μJy/beam. c) The contours of polarized intensity and B-vectors of polarization degree of the disk of NGC 660 at 4.86 GHz (natural weighting) superimposed on the DSS blue image. The contour levels are (3, 5, 8, 12, 20, 35)  ×  13.4 μJy/beam. A vector of 10′′ length corresponds to the polarization degree of 11%. The maps resolution is 18′′  ×  18′′ HPBW.