DF guidance

DF (direction finder) guidance

The guidance given to aircraft in distress or to other aircraft that request the service. Headings are provided to aircraft by facilities equipped with DF (direction-finding) equipment. These headings, if followed, will lead the aircraft to a predetermined point such as the radio direction-finding station or an airport. Practice DF guidance is provided when workload permits. Also called DF steer.

An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved