NRH & SAO images at the beginning of the type II emission at 327.0 MHz. Top: sequence of NRH 2D images near the start of the type II at 327 Mz. The color table of each image is normalized to the corresponding minimum and maximum intensity. The black arch marks the photosheric limb. Bottom: flux as a function of time for NRH (blue) and for SAO (red). The time range of the images is marked by the double arrow.