F region: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| The maximum frequency of radio waves that can be reflected reliably by the F region changed to 35 megahertz. | Jul 05, 2012 | ||
| Diagram depicting the layers of Earth's ionosphere added. | Jul 05, 2012 | ||
| Article added to new online database. | Jul 20, 1998 |
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