Naturally weighted VLBI images of J0906+6930. Left: at 2.3 GHz. The peak brightness is 95.6 mJy beam⁻¹. The lowest contours are at ±0.35 mJy beam⁻¹ (∼3σ), the positive contour levels drawn with solid lines increase by a factor of 2. The image is restored with a circular Gaussian beam of 2.8 mas (FWHM) as indicated in the lower left corner. Right: at 8.6 GHz. The peak brightness is 70.9 mJy beam⁻¹. The lowest contours are at ±0.2 mJy beam⁻¹ (∼3σ), the positive contour levels increase by a factor of 2. The image is restored with a circular Gaussian beam of 0.7 mas (FWHM). Open star symbols indicate the locations of fitted Gaussian brightness distribution model components at 8.6 GHz. The filled symbol shows the position of the jet component fitted to the 2.3 GHz data (see Table 2).