VLF wave generation via modulated

May 25, 2012 - waves have been generated via heating of the lower ionosphere. (50–100 km altitude) with High Frequency (HF, 3–10 MHz) radio waves...

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ELF/VLF waves have been generated via steerable HF heating of the lower ionosphere. The temperature‐dependent conductivity of the lower ionospheric plasma enables HF heating (and subsequent recovery) to modulate natural current systems such as the

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