3 ms·
You can put devices in the field that substitute for the GPS satellites. But you have to know where the device is! So it'd have to have been installed before th
by JoeAltmaier 4y ago
You can put devices in the field that substitute for the GPS satellites. But you have to know where the device is! So it'd have to have been installed before the outage.
- Animats 4y agoThat used to be done. They're called "psuedolites". You'd put one somewhere on your property. It listens to the GPS satellites, and over a few hours, gets its own location very accurately by averaging error. Then it rebroadcasts a correction signal to cooperating GPS receivers nearby. Some airports have used these. They're called "ground based augmentation systems" in aviation. There are agricultural versions. Deere sells some.[1] They call this "RTK". [1] https://www.deere.com/en/technology-products/precision-ag-technology/guidance/rtk-radio-900/ https://www.deere.com/en/technology-products/precision-ag-te...