U.S. Army Reserve combat engineers from the 374th Engineer Company (Sapper), of Concord, Calif., write down and program their grid coordinates using a Defense Advanced GPS receiver during a team-based land navigation course during the 2015 ...
A summary of the GPS system performance for STARS Mission 3 - UNT Digital Library
GPS - ARK: Survival Evolved Wiki
ARK Survival Evolved PC Patch Notes - 60FPS Gaming