back course

Fetched 2026-10-26 (cache).

Synonyms: back house, base course, race course, back court, band course

Antonyms: back house, base course, race course, back court, band course

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|aviation}} The [[approach]] course formed by the rear [[lobe]] of the [[signal]] pattern of a [[localizer]] [[antenna]] array (the portion of the localizer signal emitted from the rear face of the antenna array), oriented in the [[reciprocal]] direction to the primary approach course (i.e., the back course - if a usable back course exists at all - will be rotated 180° from the primary course); not produced in usable form by all localizers, with newer equipment radiating very little signal into the rear and side lobes (not enough to allow for a back-course approach).

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.