locator outer marker

noun

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.

Similar
LOM
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Meanings

nounlocator outer marker (plural locator outer markers)

plural locator outer markers

  1. USaeronauticsA 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: LOM

Synonyms & antonyms

nounA 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.

Similar
LOM
Cite this entry
APA

locator outer marker. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/locator%20outer%20marker

MLA

“locator outer marker.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/locator%20outer%20marker. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “locator outer marker,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/locator%20outer%20marker.

Source: locator outer marker on Wiktionary, CC BY-SA 4.0.