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this post was submitted on 18 Sep 2023
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Wait what? Shouldn't that enable the US to end this war relatively easily? They could instantly break a lot of the advanced weaponry of Russians by disabling GPS for them.
You can't disable GPS for individual devices, what they can do is disable the civilian signals and only send out the military ones which are both scrambled and way more accurate. GPS is one-way communication, from satellites to ground devices, no backlink.
And I bet they absolutely would, but Ukraine is also using civilian devices and asked the US not to.
No they couldn't. GPS works by sending the time stamps and position of the satellite. By measuering the difference between when the signals reach the gps device it can triangulate its position.
There is the civillian coarse and an encrypted fine version for the military. I think the US will not allow the Ukrainians access to the second and their tech is probably not suitable for it.
If they cut GPS it cuts for everyone in that area.