Solar radio spectra in the range of 2.0 - 4.5 GHz observed by using a digital radio spectrometer at the Astronomical Observatory Ondřejov are presented. A brief description of the observational equipment is given in Part I. In Part II are presented solar radio spectra observed in the period April 10 - December 29, 1989, including also the First Flares 22/MAX´91 Campaign No. 1.