Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
radio navigation instrument
|
| gptkbp:abbreviation |
gptkb:ADF
|
| gptkbp:category |
gptkb:navigation
|
| gptkbp:component |
aircraft navigation system
|
| gptkbp:detects |
radio signals
|
| gptkbp:frequency |
190 kHz to 1750 kHz
|
| gptkbp:function |
determines direction to a radio source
|
| https://www.w3.org/2000/01/rdf-schema#label |
Automatic Direction Finder
|
| gptkbp:introducedIn |
early 20th century
|
| gptkbp:provides |
bearing to station
|
| gptkbp:receivesSignalFrom |
non-directional beacon
|
| gptkbp:replacedBy |
gptkb:GPS
gptkb:VOR |
| gptkbp:requires |
receiver
Antenna |
| gptkbp:usedBy |
pilots
|
| gptkbp:usedFor |
approach navigation
enroute navigation |
| gptkbp:usedIn |
aviation
maritime navigation |
| gptkbp:bfsParent |
gptkb:ADF
|
| gptkbp:bfsLayer |
6
|