Naturally weighted CLEAN maps of J1718+4239 at 4.5 GHz (IFs 1 − 2) and 6.7 GHz (IFs 3 − 4). The contours start at noise levels of ±3σ rms, and the positive contours increase by a factor of 2. The fitted Gaussian model components are shown with blue labels and crossed circles. The angular scaling at the redshift of the quasar (z = 2.68) is denoted in the top left corner, and the restoring beam is shown in the bottom right corner. The image parameters are listed in Table 1.