Trans-Equatorial Backscatter Observations of Magnetically Controlled Ionization

Abstract

A ROTATING backscatter equipment operating at Brisbane on a frequency of 16 Mc./sec. with a highly directional aerial1 has been modified to record echoes with ranges up to 15,000 km. It is found that on 95 per cent of afternoons echoes are returned from a north-easterly direction with ranges of 6–12,000 km. Typical sequences are shown in Figs. 1 and 2, where the plot is one of range versus magnetic azimuth from Brisbane.

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THOMAS, J. Trans-Equatorial Backscatter Observations of Magnetically Controlled Ionization. Nature 191, 792 (1961). https://doi.org/10.1038/191792a0

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