I wonder if location could be provided separately (assuming you know where you are) and a rubidium reference would work for clock. Even best GPS receivers have +- 10 ns timing uncertainty, and ...

Diff-e-q The eLoran system gets its enhanced accuracy in much the same way that enhanced GPS gear squeezes greater accuracy out of the civil GPS signal for tasks such as surveying and mapping—by ...

All the newspapers are concerned with the implications of the Daniel Ubani case, after an inquest found he killed a patient ‘unlawfully'. The German GP has sparked Government action over the safety of ...

GPS, short for Global Positioning System, is a network of satellites and receiving devices used for positioning, navigation and timing on Earth in everything from ships and planes to cars.