locator outer marker en · NOUN
Meanings
- (US) A ground-based radio navigation aid consisting of a pair of colocated radio beacons at the final approach fix of an ILS or IGS approach course: an NDB to guide aircraft to the approach fix, and an outer marker to alert aircraft as they pass over the station.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| locator outer markers | Number=Plur | lexicographic |