John B. Whitsell

About John B. Whitsell

John B. Whitsell is a retired US Navy Commander with 24 years experience in Surface and Amphibious Warfare. He currently owns Making Tracks GPS, www.makingtracksgps.com. He may be contacted at: jbwhitsell@makingtracksgps.com

Globale Navigationsanlage (GPS)

Globale Navigationsanlage (GPS) Kennzeichnete ursprünglich die NAVSTAR (Navigationsanlage mit TIMING und der Erstreckung) globale Navigationsanlage, (GPS) sich entwickelte durch das US Verteidigungsministerium, um Allwetter- Rund-dtaktgeber...
Date Posted: September 07, 2006
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