 |
vertical-incidence
| ionospheric recorder
| vertical incidence | |
| el. | senkrechter Sichtwinkel |
| ionospheric recorder | |
| commun. | Ionosonde |
| |||
| senkrechter Sichtwinkel | |||
| senkrechter Einfall | |||
| vertical-incidence: 17 phrases in 5 subjects |
| Communications | 2 |
| Electronics | 9 |
| Measuring instruments | 1 |
| Radio | 4 |
| Sound recording | 1 |