WAVES direction‐finding for the event on 2001 September 24. The plots show the flux density, azimuth, and elevation of the radio source for three frequencies: 740 kHz (top; with two timescales), 624 kHz (bottom left), and 428 kHz (bottom right). The data suggest that the continuum source drifts from the equator toward higher elevation, reaching almost 40° north within 3 hr from the CME onset. These data illustrate the evolution with frequency of the continuum onset time. The few bursts that appear during the progression of the continuum originate from a different direction and are unrelated.