GNSS receiver service
Diagnostics of GNSS RTK receivers, firmware updates, radio modem, NTRIP and controller set-up, antenna and cable testing.

A healthy GNSS RTK receiver delivers ±1–2 cm horizontal and ±2–3 cm vertical accuracy and speeds up topographic surveys and setting-out considerably. Slow or unstable fixed solutions, weak radio links or a constant offset between base and rover are often caused by the equipment itself: outdated firmware, a damaged antenna cable, worn batteries or an incorrect configuration.
During service we test tracking of GPS, GLONASS, Galileo and BeiDou, signal-to-noise ratios and initialisation time under open sky. Control measurements are taken on a point of known coordinates, the antenna phase-centre height and the tilt sensor (IMU) are calibrated. UHF radio power and channels, GSM/NTRIP connections, the controller and field software such as SurvStar or Landstar are configured.
SOUTH receivers get official firmware updates and warranty service; CHC, Trimble, Leica and Topcon models are also accepted for diagnostics and set-up. Coordinate system parameters — the national grid, WGS-84 or UTM zone 39N — are configured to suit your projects in Baku and across Azerbaijan.
Control results and the work performed are documented in a service report.
When you need it
- Fixed solution is slow or keeps dropping
- Radio range has decreased
- Constant offsets appear on known control points
- Outdated firmware or new constellations not tracked
- Batteries drain quickly or the unit shuts down
What's included
- Satellite tracking and signal quality diagnostics
- Firmware update
- UHF radio and GSM/NTRIP configuration
- Antenna, cable and connector testing
- Tilt sensor (IMU) calibration
- Controller and field software configuration
How we work
- Intake and logging of reported issues
- Bench and open-sky diagnostics
- Firmware update, configuration and repair if needed
- Control measurements on a known point
- Handover with a service report
Deliverables
- Working, configured GNSS RTK kit
- Service report with control results
- Configured controller and coordinate system






