2018 August 04
originally posted on facebook

Prior to 2000, civilian GPS had an intentional error of about 100 meters… except during the 1991 Kuwait War, when the US military didn’t have enough military GPS receivers, so they turned off the error for civilian receivers. (GPS played an important role in that war by allowing the US to rapidly advance through large expanses of barren desert at night.) Nowadays the US military uses jamming of GPS signals to maintain a GPS advantage.


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