Kennelly-Heaviside layer
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English[edit]
Etymology[edit]
Named after Arthur E. Kennelly and Oliver Heaviside.
Noun[edit]
Kennelly-Heaviside layer (plural Kennelly-Heaviside layers)
- A layer of ionized gas occurring between roughly 90–150 km (56–93 mi) above the ground. It reflects medium-frequency radio waves, and thus enables them to be propagated beyond the horizon.