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This paper describes the U-type burst observed by Ondrejov Observatory on 1992-08-22 in the 6-second period 12:36:26-32 UT. To our knowledge it is the first time that a U-type burst was detected in the frequency range 1.0-2.8 GHz. Our analysis leads to the following conclusions: 1) The drift rates of the ascending and descending branches are 1.25 and 0.225 GHz/s, corresponding to beam velocities...
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