locator outer marker

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English[edit]

English Wikipedia has an article on:
Wikipedia

Noun[edit]

locator outer marker (plural locator outer markers)

  1. (aviation, chiefly 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.

Synonyms[edit]

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