Radio signals from extensive air showers with the energies E0 ≥ 1019 eV according to data from the Yakutsk extensive air shower array

A radio instrument and results obtained from the measurements of the 32-MHz radio signal from particles of extensive air showers (EASs) with energies E0 ≥ 1×1019 eV are reported in brief. The data were obtained at the Yakutsk EAS array in 1987–1989 (the first series of measurements) and in 2009–2014 (new series of measurements). The radio signal from EASs with energies above 1020eV was detected at the Yakutsk EAS array for the first time, including the shower with the record energy of ~2×1020 eV for the Yakutsk EAS array.