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The Visual Aural Radio Range (VAR)[1] was a short range radio navigation aid, used from about 1940 until 1960, that provided four-course visual and aural track guidance signals at a range of about 100 miles.[2]
The VAR bridged the technological gap between the Low-Frequency Radio Range (LFR) radio navigation system and the VHF omnidirectional range (VOR) navigation system. VAR provided four courses for navigation, two using visual instrument signals functionally and technically similar to the modern localizer and backbeam components used in the ILS system and two using audio signals similar to the LFR system. VAR also used marker beacons similar to the ILS.
^"ICAO List of Abbreviations" (PDF). 18 November 2010. Archived from the original (PDF) on 2 April 2015. Retrieved 3 Mar 2015.
^Operational Notes on Visual-Aural Radio Range and Associated Marker Beacons. Commonwealth of Australia Department of Civil Aviation. 1953.
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