CHARACTERISTICS OF RADIO EMISSION OF AR 5395

1. Introduction The AR 5395 in March, 1989 has been the most intensive active region since 20solar cycle. During the AR 5395 passing across the solar disk from 6 March to 19,March, it produced 194 optical flares, 106 X-ray events(including 11 class X-ray events) and 240 mierowave events aeeomPanied with 140 Sudden Ionosphere Disturb-ance(SID) events.