Upper panel: enlarged view of the dynamic spectrum of the 2000 March 2 event observed by ARTEMIS. The type II burst is surrounded by the white ellipse. The arrows indicate the type II frequencies (236 and 164 MHz) observed by the NRH. Lower panel: time profiles of the radio flux at 236 and 164 MHz derived from the NRH maps. The horizontal lines mark the passage of the type II burst.