December 7, 2016 Skypine car navigation maker adopts Furuno receiver with dead reckoning By GPS World Staff
December 7, 2016 NGS to replace NAVD 88 in 2022: What GNSS users need to know — Part 10 By David B. Zilkoski
December 5, 2016 Raytheon, DARPA developing tech to protect power grid against cyber attack By GPS World Staff
![[FIGURE 1] New Datums: Approximate Orthometric Height Change](https://stage.gpsworld.com/wp-content/uploads/2016/12/Fig1-datum-NGS-ortho-height-change.jpg)
