RATAN-600 radio telescope in the 24th solar-activity cycle. I. New opportunities and tasks

Regular upgrade of the RATAN-600 radio telescope has been completed in order to prepare the instrument for the studies of the active Sun during the 24th solar-activity cycle. The upgrade included the improvement of the parameters of the multi-octave solar spectral and polarization analyzer, realization of regular multiple observations, and the use of modern capabilities for the representation and processing of observational data. In this connection, there appear to be sufficient reasons to review the results obtained using the previous version of the receiving equipment and discuss the new capabilities in the study of the physics of the solar atmosphere provided by the new analyzer.