3 ms·
US currently claims 4m RMS (7.8m 95% Confidence Interval) horizontal accuracy for civilian (SPS) GPS. Some devices/locations reliably (95% of the time or better
by donohoe 9y ago
US currently claims 4m RMS (7.8m 95% Confidence Interval) horizontal accuracy for civilian (SPS) GPS. Some devices/locations reliably (95% of the time or better) can get 3m accuracy.
- jhayward 9y agoYes, my expectation is that standard consumer-grade devices with GPS capability (even using tiny chip antennas) can achieve ~2.5M horizontal on L1 when using WAAS/SBAS augmentation.