Originally Posted by
Pugilistic Animus
Selective availability? I thought that policy was discontinued.
This is probably not the US trying to degrade precision; it’s much more likely to be certain regional actors protecting themselves using GPS jammers like
this which are an effective defence against commercially-available drones. Because the signal:noise ratio of GPS is so low, one jammer can disrupt civil GPS reception across a wide area. Military grade receivers use encryption, multiple frequencies and wider bandwidth to reduce susceptibility to jamming.