Correlation between radio pulses from extensive air showers at 60 and 80 MHz frequencies

The correlation between simultaneously produced radio pulses from extensive air showers (EAS) as 60 and 80 MHz frequencies is studied for the first time in details. The statistical analysis indicates a highly significant positive correlation of emission between the radio pulses at these two frequencies. It is concluded that a spectrum of radio frequencies from a low to a high value is emitted simultaneously in an EAS of primary energy E >1016eV. (auth.)