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300 points drewr | 1 comments | | HN request time: 0.201s | source
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burnt-resistor[dead post] ◴[] No.44409363[source]
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chamomeal ◴[] No.44410054[source]
Is that possible? I thought GPS works by just listening for signals from GPS satellites?

I’m now realizing I know hardly anything about GPS. Like it was made in the 50’s or something? Do we keep sending more GPS satellites into space? Or are there just the original handful?

replies(3): >>44410121 #>>44410424 #>>44410699 #
1. jenadine ◴[] No.44410121[source]
The GPS signal can be encrypted such that only the army can access it. The not encrypted signal can be made less accurate or disabled over specific regions.