Norway is building a ground-based time synchronization system to reduce dependence on GPS

Telecommunications, banking and computer systems require time synchronization with millisecond accuracy. Currently, many of them use data provided by satellite navigation systems, including GPS.

The problem is that these signals are not controlled by the authorities in Oslo and can be jammed or spoofed. In a crisis situation, this could impede the functioning of services important to the state and citizens.

Keeping the time correct and traceable is absolutely crucial for a great many functions that are critical to society in Norway and the rest of Europe, Industry Minister Cecilie Myrseth told NRK television.

Russian interference with the GPS signal is particularly felt in the eastern part of Finnmark, in northern Norway. According to information quoted by the Norwegian media, they happen there every day.

Difficulties affect, among others: aviation, police and rescue services. The pilots repeatedly had to abort the landing approach due to problems with satellite signals. The disruption also affected positioning and time data, and rescuers reported difficulty reaching people in need of help.

Terrestrial infrastructure instead of dependence on satellites

The new system is to be based on national terrestrial infrastructure. Norway will determine precise time itself and then transmit it to key systems.

The solution is intended to reduce the state's dependence on external satellite signals and allow important services to remain operational even if GPS or other navigation systems are disrupted or manipulated.