outer marker

English

Noun

outer marker (plural outer markers)

1. (aviation) A type of marker beacon placed to indicate the final approach fix of an ILS or IGS approach, triggering a continuous sequence of visual and aural Morse code dashes from the marker beacon receiver in the cockpit of an aircraft flying over the marker.

Synonyms

• OM

Hypernyms

• marker beacon

Hyponyms

• locator outer marker

Coordinate terms

• fan marker
• inner marker
• middle marker