Wuhan, China (SPX) Apr 01, 2022
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Narrow-band VLF transmitter waves originate from the powerful ground-based VLF transmitters for submarine communications, which are typically over the frequency range of 10-30 kHz. VLF transmitter signals, being guided by the gradients of the Earth's magnetic field, can leak a portion of the wave power into the magnetosphere. Early theoretical studies suggested that VLF transmitter waves potenti