Physics
Scientific paper
Aug 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978jgr....83.3887k&link_type=abstract
Journal of Geophysical Research, vol. 83, Aug. 1, 1978, p. 3887-3889.
Physics
7
Atmospheric Radiation, Earth Magnetosphere, Harmonic Radiation, Power Lines, Radio Transmitters, Satellite Observation, Very Low Frequencies, Amplification, Explorer 12 Satellite, Plasma-Electromagnetic Interaction, Polar Orbits
Scientific paper
Narrowband VLF signals with a frequency separation of 100-130 Hz have been detected by a receiver aboard the S3-3 satellite. The radiation has the same characteristics as those reported for ground-based observations of magnetospheric lines resulting from the nonlinear amplification of power line radiation. During the satellite observations, the transportable very low frequency (TVLF) transmitter was performing magnetospheric wave injection experiments from a site in New Zealand. The narrowband magnetospheric lines were observed apparently because power line harmonic radiation was amplified to detectable levels by a nonlinear interaction involving the TVLF signal. The most likely sources of the radiation are the 50-Hz power grids in Tasmania, southeastern Australia, or New Zealand).
Dazey M. H.
Edgar Bruce C.
Koons Harry C.
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