RTK vs GPS: Understanding Accuracy, Corrections, and Workflow Differences in 2026
Most “GPS” in the field is uncorrected GNSS (SPP) and often sits around 1–5 m—fine for navigation, costly for staking and QA. RTK adds RTCM corrections (usually via NTRIP) and carrier-phase to deliver centimeter-level positioning when you maintain an RTK FIX, and shows when PPK or PPP is the smarter workflow.
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