View Single Post
  #62  
Old August 7th 14, 08:12 PM posted to rec.aviation.soaring
J. Nieuwenhuize
external usenet poster
 
Posts: 83
Default Another mid-air (UK)

Op donderdag 7 augustus 2014 18:55:16 UTC+2 schreef Stats Watcher:


Error is cumulative, that's how d-GPS and WAAS work. So the guy a mile away from you also has 8 or more meters of error. In exactly the same direction vector as for you. So relative accuracy is virtually +/-0...