On some effects observed during powerful VLF wave action on the ionosphere


  • O. A. Molchanov,

  • A. E. Resnikov,

  • D. S. Fligel


The results of observations of the amplitude variations of pulses transmitted by a powerful VLF transmitter (ƒ = 15 kHz) at different distances are given. The duration of the pulses varied from 5 to 120 sec. The observed variations may be explained as the self-action of a powerful wave in the lower ionosphere.