Debrief: Making PNT Possible From LEO

GPS satellite rendering

Third render of GPS satellite in orbit around the Earth.

Credit: Alamy
The GPS signals on satellites are being jammed from terrestrial sources at growing rates, and the demand for alternate options for position, navigation and timing (PNT) is burgeoning. Observers are sounding the alarm that signal interference around Ukraine is bleeding up into low Earth orbit (LEO)...
Vivienne Machi

Vivienne Machi is the military space editor for Aviation Week based in Los Angeles.

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