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During the total solar eclipse of 2009, a week-long campaign was conducted in the Indian sub-continent to study the low-latitude D-region ionosphere using the very low frequency (VLF) signal from the Indian Navy transmitter (call sign: VTX3) operating at 18.2kHz. It was observed that in several places, the signal amplitude is enhanced while in other places the amplitude is reduced. We simulated the...
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