Abstract : A 517-megacycle swept-lobe interferometer has been placed in operation at the Sampson Station of the Observatory of Rensselaer Polytechnic Institute. As the sun moves across the sky, a phase recorder indicates in a saw- tooth pattern the position between the lobes occupied by the center of gravity of the radiation from the sun. The total intensity of the solar radiation is recorded. When a solar burst occurs, the center of gravity of the radiation moves to the east or west dependent on the location of the burst. Preliminary results for seven burst events between August and November are presented and discussed. The locations of the sources of the 517-megacycle radiation are found to be consistent with the positions of the associated optical flares.