Two images of the 3C 196 region in polarized intensity at Faraday depth 0 rad m^-2 after performing direction-independent calibration (image on the left) and direction-dependent calibration and source subtraction (image on the right). Images are 8.3° × 8.3° in size, with a PSF of 3.6′ × 3.9′. The 3C 196 source is also subtracted from direction-independent calibrated visibilities. Eight bright sources, used for direction-dependent calibration and source subtraction, are indicated with red circles. The images have not been corrected for polarization noise bias nor for Faraday rotation in the Earth’s ionosphere.