| Answer | Crossword Clue |
|---|---|
| FLAYER | Ionosphere segment |
| EREGION | Ionosphere layer |
| EREGION | Ionosphere area |
| NORTHERNLIGHTS | Ionosphere phenomenon |
| LAYER | Ionosphere, e.g. |
| DLAYER | Region of the ionosphere |
| ELAYER | Region of the ionosphere |
| ELAYERS | Parts of the ionosphere. |
| SKYWAVES | Radio transmissions via the ionosphere |
| RADIOWAVES | They're affected by the ionosphere |
| ELAYER | Ionosphere region that reflects shortwave frequencies |
