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Old 12th Jan 2019, 09:08
  #10 (permalink)  
The Ancient Geek
 
Join Date: May 2010
Location: UK
Age: 74
Posts: 1,042
The orientation of VOR antennas is fixed at the time of installation and cannot be changed so the radials refer to the magnetic north which existed when installed.
Note that this refers to the LOCAL magnetic field which may or may not be significantly changed by the magnetic pole wandering as described in the article.
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