FixGuard

FixGuard is a mobile + web app for field crews using RTK GNSS that flags bad fixes in real time and produces defensible QA reports. Instead of showing only “FIX/FLOAT,” it continuously scores solution integrity using correction age, satellite geometry, multipath indicators, baseline length, and sudden coordinate jumps. When risk spikes, it pushes a loud, configurable alert and suggests the most likely cause (radio link, NTRIP dropouts, poor sky view, base movement, wrong mountpoint). After the shift, it auto-generates a shareable PDF/CSV “proof of position” report with timelines, map traces, and quality metrics for supervisors or clients. This is not a magic accuracy booster; it’s a reliability layer that reduces rework, disputes, and silent bad data. It integrates with common receivers via NMEA/RTCM streams and can run offline with later sync.