Jul 14 ELF waves generated by modulated HF heating of the auroral electrojet and observed at a ground distance of ~{}4400 km
Jul 14 ELF/VLF wave generation via ionospheric HF heating: Experimental comparison of amplitude modulation, beam painting, and geometric modulation
Jul 14 Penetration of lightning MF signals to the upper ionosphere over VLF ground-based transmitters
Jul 14 DEMETER observations of an intense upgoing column of ELF/VLF radiation excited by the HAARP HF heater
Jul 14 Radiation of ELF/VLF waves by harmonically varying currents into a stratified ionosphere with application to radiation by a modulated electrojet