Incoming wave signals (expressed in relative plasma density variations) at the detection points L_D = 50 Mm, 60 Mm, and 70 Mm (upper, middle, and lower panel, respectively). In the left column, the signals for the gravity-free case are shown; the signals detected in the gravitationally stratified solar atmosphere are presented in the right panel. The semi-width of the current-sheet is w_CS = 1.0 Mm.