Hostname: page-component-848d4c4894-4rdrl Total loading time: 0 Render date: 2024-07-06T14:18:39.167Z Has data issue: false hasContentIssue false

A D F Installations

Published online by Cambridge University Press:  26 October 2023

Get access

Extract

The Automatic Direction Finder is a primary radio navigational aid, providing a pilot or operator with a direct indication of the relative bearing of any radio transmitter to which the equipment is tuned, normally in the band 150 to 1,800 Kc/s

Using a single transmitter the co-ordinates of which are known, a simple homing can be obtained and with the use of two or more transmitters it is possible to obtain a position fix

To this end small beacon transmitters are often installed at airfields Most homing procedures terminate with the passage of the aircraft over the top of the beacon and this is indicated by a reversal of the bearing indicator needle

Type
Problems Relating to the Installation and Operation of Radio Equipment in Helicopters
Copyright
Copyright © Royal Aeronautical Society 1957

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)