Pulses of the GC magnetar, PSR J1745-2900, found in the Sgr A* GMVA 2017 campaign. For each plot, the top panel shows the pulse profile in intensity, and the bottom panel displays the dynamic spectra along APS bandwidth at Band 3. The spectral resolution is given by the 32 frequency channels across the 2 GHz bandwidth and the time resolution was set to 9.6 ms for visualisation purposes.