Abbreviation List

AAL

above aerodrome level

ACD

airways clearance delivery

ADF

automatic direction finder

AESIS

automatic en route information service

AF

audio frequency

AFRU

aerodrome frequency response unit

AGL

above ground level

AI

attitude indicator

AIC

Aeronautical Information Circular

QDL

Series of bearings taken at regular intervals

QDM

Magnetic bearing to a station

QDR

Magnetic bearing from a station

QFU

Magnetic bearing of the runway in use

QGH

Controlled Descent through Clouds

QTE

True bearing/track from a station

QTF

Position in relation to a point of reference or in latitude and longitude

QUJ

True bearing/track to a station

WX

weather

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