Ducted and non-ducted propagation of Omega signals within the plasmasphere |
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Authors: | F Jirˇi´cˇek P Trˇi´ska |
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Institution: | Geophysical Institute, Czechoslovak Acad. Sci., 141 31 Prague, Czechoslovakia |
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Abstract: | Signals of the transmitter of the Omega navigation system located in the Southern Hemisphere (Reunion, 21.0°S, 55.3°E, L= 1.35) recorded by Interkosmos satellites on passes over the Northern Hemisphere, have shown that these signals can be detected in the conjugate region within a range of L-values between 1.5 – 3.0. Both ducted and non-ducted propagation has been observed. The most frequent propagation is in the whistler mode along the line of forceL= 1.8. The measured signal delays are in accordance with the observed dispersion of whistlers. |
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