Dependence of radio flux and size of CRL 618 with Frequency. The data correspond to the observations carried out in the epoch 1998.33. The minor axis of the source at ν = 1.46 GHz was not resolved, thus we only show the value of the major axis. The dashed and dot-dashed lines represent least squares fits to the data, assuming a power-law model. The numerical expressions of the fits are also shown in the panels.