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Direction Basis (DRB)

DGIF baseline 2026-1, the latest. Earlier baselines: timemap.

RDF: drb.ttl

Name

directionBasis

Datatype

Enumeration

Definition

The basis by which the Earth-relative horizontal angular direction of a bearing or path is specified.

Description

The direction basis may be used with a pair of angular limits to define the limits of an arc or sector around a centre point.

Accepted

2013-10-18

Defined by

NFDD

Values

• DRB_1 True Heading
• DRB_2 True Bearing
• DRB_3 Magnetic Heading
• DRB_4 Magnetic Bearing
• DRB_5 Magnetic Track
• DRB_6 VOR or TACAN Radial

Used by

• GA043 Radio Navigation Service Limitation

Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.