Reception Of Elf Signals At Antipodal Distances
Measurements of 82 Hz radio signals from a Russian ELF transmitter located on the Kola Peninsula are described. The measurements were made at several locations around the world, including Dunedin, New Zealand, and Arrival Heights, Antarctica, which are close to the antipodal point for the transmitte...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.46.9395 http://www-star.stanford.edu/~acfs/82Hz.pdf |
| Summary: | Measurements of 82 Hz radio signals from a Russian ELF transmitter located on the Kola Peninsula are described. The measurements were made at several locations around the world, including Dunedin, New Zealand, and Arrival Heights, Antarctica, which are close to the antipodal point for the transmitter. This is the first time man-made ELF signals have been observed over such long distances and their clear reception makes possible a comparison of the theoretically predicted and measured amplitudes near the antipode. The agreement is excellent. Introduction During January 1990, CW radio transmissions at a frequency of 82 Hz were successfully received for many days at a number of the combined extremely-low and very-low frequency (ELF/VLF; frequencies in the range 5 Hz -- 30 kHz) radio noise measurement systems operated around the world by Stanford University [Fraser-Smith et al., 1985, 1988; Fullekrug and Fraser-Smith, 1996]. Specifically, the transmissions were observed at Sndrestrmfjord. |
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