Contour plots of the locations of the type II radio emission with respect to the eruption as seen by simultaneous images taken by AIA in the 211 Å channels. Contour levels represent 95%, 97%, 99%, and 99.9% of the maximum temperature brightness of the full NRH radio map. The positively drifting type II emission (left panel) seen at frequencies of 150.9 and 173.2 MHz at the F was emitted around 10:11.5 UT and is clearly well ahead of the CME eruption. Right panel: position of the negatively drifting type II emission at a later time. The simultaneous radio emissions at frequencies higher than 200 MHz are not related to the shock but are rather attributable to hot prominence material expanding during the eruption.