Abstract
The Yakutsk Array is designed to study cosmic rays at energy 1015â1020eV. It consists several independent arrays that register charged particles, muons with energy Eâ„1GeV, Cherenkov light and radio emission. The paper presents a technical description of the Yakutsk Radio Array and some preliminary results obtained from measurements of radio emission at 30â35 MHz frequency induced by air shower particles with energy Δâ„1â 1017eV. The data obtained at the Yakutsk array in 1986â1989 (first set of measurements) and 2009â2014 (new set of measurements). Based on the obtained results we determined: Lateral distribution function (LDF) of air showers radio emission with energy â„1017eV. Radio emission amplitude empirical connection with air shower energy. Determination of depth of maximum by ratio of amplitude at different distances from the shower axis. For the first time, at the Yakutsk array radio emission from the air shower with energy >1019eV was registered including the shower with the highest energy ever registered at the Yakutsk array with energy âŒ2â 1020eV.
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