Phoenix II microwave spectrometer and high time resolution observations

Phoenix II microwave spectrometer of Yunnan Observatory was founded in 1994. It has been operating at four frequencies of 1.42, 2.13, 2.84 and 4.26 GHz with both time constant of one second and one millisecond. Therefore, the instrument has the capability to receive the harmonic structures of solar radio burst and of rapidly varying component (RVC). Our high time resolution data observed with Phoenix II microwave spectrometer were processed. The observational characteristics of the basic components of the solar radio emission and a fourth basic component were confirmed.