forward propagation by ionospheric scatter

forward propagation by ionospheric scatter

[¦fȯr·wərd ‚präp·ə‚gā·shən bī ī′än·ə‚sfir·ik ‚skad·ər]
(communications)
Radio communications technique using the scattering phenomenon exhibited by electromagnetic waves in the 30-100-megahertz region when passing through the ionosphere at an elevation of about 50 miles (85 kilometers).
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