Spectral maps of 3C 84 between 22 and 43 GHz. The total intensity is represented by the contours, using the contour levels at 1, 2, 4, 8, 16, 32, and 64% of the peak flux at 22 GHz, with a cut-off of 8σ_I for all epochs. The black circle in the bottom left corner denotes the convolving, circular beam size of 0.25 mas for all epochs and the black dash in the bottom right corner denotes the projected distance corresponding to 4000 R_S and 0.37 pc.