Within the framework of the French-Austrian-Ukrainian-Russian EU-INTAS - project "New Frontiers in Decametric Radio Astronomy" simultaneous observations of the Jupiter decametric radio emission have been made at the radio observatories in Nanšay (France), Graz (Austria) and Kharkov (Ukraine). For the first time high resolution (in time and frequency) dynamic spectra have been observed with identical radio receivers (digital spectro - polarimeters, a French-Austrian co production). Physical parameters important for the theory of Jupiter radio emission generation are deduced from these spectra. In addition information about the magnetoplasma encountered by the radio waves can be gained.
In recent times the ground observation of Jupiter decametric radio emissions has been supplemented with simultaneous satellite and in-situ space probe observations (e.g. Galileo). This adds the immense benefit of enabling us to observe those decameter frequency areas blocked by the terrestrial ionosphere.