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They're also bidirectoinal, which means SpaceX can locate me at all times. GPS sats are just flying around broadcasting their time and don't get a reply when a
by Lammy 5y ago
They're also bidirectoinal, which means SpaceX can locate me at all times. GPS sats are just flying around broadcasting their time and don't get a reply when a receiver picks it up.
- toomuchtodo 5y agoThey can only locate transmitters, not devices receiving their signals for precise positioning. This methodology is very similar to how precise point positioning works with GPS (where the carrier phase is used in concert with timing messages for higher precision). https://en.wikipedia.org/wiki/Precise_Point_Positioning https://en.wikipedia.org/wiki/Precise_Point_Positioning
- NotEvil 5y agoIn this case, satelite Don't even know it been used as a nav one. It's same as gps satellites