411 REFERENCE · Wiktionary
DGPS
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Proper noun
en cartography en w:Differential Global Positioning System, an enhancement to Global Positioning System that uses a network of fixed ground based reference stations to broadcast the difference between the positions indicated by the satellite systems and the known fixed positions.
Anagrams
en dgps PGDs GDPs