Flare configuration. a,c) TRACE images in 171 Å line. b) White contours show 5.7 GHz source (Stokes I) at 01:38 at (4.3, 7.2, 13) MK. The yellow quadrangle indicates the position of the SSP brightness centroids. The dashed lines show the directions of the SSRT east-west and north-south scanning and the sections across the flare kernel (right) and remote source (left). Green contours present levels of variability for 17 GHz polarization maps for time period 01:37–01:40. The cross in the left upper corner shows the SSRT beam widths. d) Blue and red contours (−500, −100, 50, 100, 500 G) show the positive and negative components of the LOS magnetic field, respectively. The white square shows the field of view in image Fig. 3c. The yellow oval marks the negative magnetic region (NMR).