Synthetic observations of the PM jet at 15.4 GHz (first column), 22.4 GHz (second column), and 43.4 GHz (third column) seen at 3° observing angle for eight different epochs. The fourth and the fifth column on the right show the spectral index between the frequencies. The quiescent jet is shown in the first row, while the subsequent rows show the passage of the perturbation and the eventual reestablishment of the quiescent jet after the perturbation exists in the grid (last row).