Abstract
IN a recent communication1, Prof. S. R. Khastgir has illustrated a complex type of trace obtained with a twin-channel cathode-ray direction-finder when receiving atmospherics. He has claimed to have deduced from this record information regarding the polarization of the echoes received after various numbers of reflexions between the Earth and the ionosphere. I believe that the record which he gives as an example can be explained almost completely by the combination of a ground-wave and the echo received after only one ionospheric reflexion.
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References
Nature, 181, 404 (1958).
Adcock, F., and Clarke, C., J. Inst. Elect. Eng., 94, Pt. III, 118 (1947).
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HORNER, F. Polarization of Atmospherics. Nature 181, 1678–1679 (1958). https://doi.org/10.1038/1811678b0
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DOI: https://doi.org/10.1038/1811678b0
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