SOLAR RADIO SPECTROGRAPHY IN EUROPE

Recent technical progress of solar radio spectrography is concerned wi th digital data recording, the achievement of high time and frequency resolution, and with an improved coverage of the radio range at short and long wavelengths. A spatially-distributed network of radio spectro graphs allows for complementary information about solar events and per iods of activity selected for detailed investigation. By modern radio spectrographs a wealth of not yet adequately classified spectral fine structures can be observed, some of them potentially intimately relate d to effects of fragmentation of flare energy and/or to processes rela ted to coronal heating. Requirements for the choice of technical param eters of solar spectrographs for checking theoretical models of fundam ental processes of energy release are reflected in modern instruments. Prospects for future observations are briefly included.