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From Wikipedia, the free encyclopedia

Meaconing is the interception and rebroadcast of navigation signals. These signals are rebroadcast on the received frequency, typically, with power higher than the original signal, to confuse enemy navigation. Consequently, aircraft or ground stations are given inaccurate bearings.[1]

Meaconing is more of a concern to personnel in navigation ratings than to radio operators. However, communications transmitters are often used to transmit navigation signals. Since communications personnel operate the transmitters, they must know how to deal with any communications problems resulting from meaconing.

Successful meaconing can cause aircraft to be lured into "hot" (ambush-ready) landing zones or enemy airspace, ships to be diverted from their intended routes, bombers to expend ordnance on false targets, or ground stations to receive inaccurate bearings or position locations.

The term 'meacon' is a portmanteau of masking beacon.

Alleged cases of meaconing

Iran says it used this technique (among others) to capture a USAF RQ-170 Sentinel drone, causing it to crash land. Meaconing in this case could provide a drone with false altitude measurements, causing a crash landing.[citation needed]

Meaconing is among fringe theories for some aircraft crashes, such as Korean Air Lines Flight 007 and the 2010 Polish Air Force Tu-154 crash.[2]


  • MIJI (Meaconing, Intrusion, Jamming, and Interference)

In popular culture

In the film Tomorrow Never Dies, a military GPS signal is meaconed to send a Royal Navy frigate off course.

In the novel and miniseries of the John J. Nance novel Pandora's Clock, an attempt to warn the airliner about an impending attack is summarily dismissed as an attempt at meaconing.

The villain of Die Hard 2 changes the Dulles Airport's ATC beacon altitude to below ground level, causing planes' altimeters to provide false readings, thus causing landing planes to crash.

See also


  1. ^ "U.S. Military definition of Meaconing". Archived from the original on 2010-05-29. Retrieved 2008-12-18.
  2. ^ "To był zamach"- mówią eksperci Gazecie Polskiej (20 May 2010) (In Polish)
This page was last edited on 30 March 2020, at 08:39
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