F Region:

The upper layer of the ionosphere, approximately 120 to 1500 km in altitude. The f region is subdivided into the f1 and f2 regions. The f2 region is the most dense and peaks at altitudes between 200 and 600 km. The f1 region is a smaller peak in electron density, which forms at lower altitudes in the daytime.

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Information and definitions of the terms been taken from various reliable government publications and we have done our best to verify their accuracy. If you feel any of the definitions are incorrect or needs to be updated please contact us and we will look into it.

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