E-layer
| critical frequency
| E layer | |
| gen. | E-Schicht |
| radio | E-Region; normale E-Schicht |
| tech. | Kennelly-Heaviside-Schicht |
| critical frequency | |
| gen. | Grenzfrequenz |
| antenn. | kritische Frequenz |
| automat. | Trennfrequenz; Schnittfrequenz |
| comp. | kritische Frequenz |
| meas.inst. | kritische Frequenz |
| radio | Senkrecht-Grenzfrequenz; kritische Grenzfrequenz |
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| E-Schicht m | |||
| E-Region m | |||
| Kennelly-Heaviside-Schicht m | |||
| |||
| normale E-Schicht | |||
| |||
| E-Schicht m | |||
|
E-layer : 8 phrases in 4 subjects |
| Astronomy | 3 |
| Communications | 1 |
| Electronics | 2 |
| Radio | 2 |