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Thread: RAIM outage on GPS / RNAV approach
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Old 27th October 2005 | 11:10
  #7 (permalink)  
High Wing Drifter
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have a GPS ground station providing additional info, can't quite rmember what they are called though.
A pseudolite. Is this the project? http://www.eurocontrol.fr/projects/s...per_ION_98.pdf