An automatic direction finder (ADF) is a marine or aircraft radio-navigation instrument that automatically and continuously displays the relative bearing from the ship or aircraft to a …

The Automatic Direction Finder (ADF) is an aircraft navigation product that automatically calculates the relative bearing of the aircraft to the radio station. The ADF-900 is part of the …

The direction to the broadcast antenna was shown on an azimuth scale of an ADF indicator in the flight deck. This type of instrument is still found in use today. It has a fixed card with 0° always …

Automatic Direction Finder (ADF) Older airborne equipment required an operator to turn the loop and determine the original null, then switch in the sense antenna and turn it again to discover …

Automatic direction finding (ADF) is an electronic aid to navigation that identifies the relative bearing of an aircraft from a radio beacon transmitting in the MF or LF bandwidth, such as an …

An Automatic Direction Finder (ADF) is a radio navigation instrument used in aviation to determine an aircraft’s bearing relative to a Non-Directional Beacon (NDB). The ADF system receives …

The Automatic Direction Finder -- ADF - when tuned to a selected NDB frequency, is the on-board equipment that determines the relative bearing (RB) from the aircraft to the ground beacon or …

ADF stands for automatic direction finder. Based on simple AM-radio ground stations called NDBs (non-directional beacons), an ADF is an aircraft instrument with a directional arrow-shaped …

The ADF, or Automatic Direction Finder, is a short-range navigational aid used in aviation. It provides aircraft bearing information relative to a ground station called an NDB (Non …

Feb 23, 1999 · The ADF receiver, a "backup" system for the VHF equipment, can be used when line-of-sight transmission becomes unreliable or when there is no VOR equipment on the …