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لبنان ٢٤
Israeli GPS Jamming Clocks
An article in the *Jerusalem Post* warns that Israeli jamming of GPS may disrupt not only navigation but also the precise timing relied on by communications, electricity networks, banks and hospitals. Signal spoofing adds to the danger because it can make devices record the wrong time without warning. In a Norwegian experiment, a receiver’s clock drifted by one millisecond, despite claiming accuracy better than 50 nanoseconds. A fault in 2016 shifted the timing of 15 satellites by 13 microseconds and disrupted services in Britain. The article notes that Israel has a national reference based on atomic clocks, but institutions do not use it as a continuous source. It calls for distributing the reference via fiber-optic networks and adopting independent timing sources that are continually compared.
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