Practical GNSS guides, how-tos and technical explainers.
Drones fly faster and turn harder than the marketing numbers suggest. Three public sources – a Septentrio mapping case, a 10 Hz velocity-estimation study, and an ISRO rotation-rate paper – show why linear dynamics and angular motion must be measured separately, and how to test your own airframe.
A sunset RTK dropout in low latitudes is usually the ionosphere, not the airframe: what scintillation does to drone GNSS and how IONO+ keeps a fix.
Jamming can move a drone’s GNSS timestamps while position looks fine. Why PPS drifts, and how in-band zero-delay anti-jamming stops it. Request a quote.
A drone has no driver to notice a silently wrong fix. How RAIM+ integrity monitoring catches bad GNSS measurements on UAV receivers. Request a quote.
A Mosaic-G5 P3H field test measured Galileo HAS at 10 cm in open sky – about 5 minutes to 20 cm and 12 minutes to 10 cm.
Jammertest 2025 ran Septentrio AIM+ receivers through about 100 jamming and spoofing scenarios. What the results mean for UAV operators.
How the official Septentrio ROSaic driver (septentrio_gnss_driver) brings mosaic-X5 and AsteRx GNSS/INS receivers into ROS 1 and ROS 2 for UAVs.
Why RxTools is the professional configuration and diagnostics software for Septentrio GNSS receivers: Linux support, spectrum analysis and command control.
How to get GNSS attitude – heading, pitch and roll – from a moving base with dual-antenna RTK: hardware, data links and MovingBase configuration.
Why did the satellite count drop from 27 to 13 after RTK Fixed? An SBF Analyzer guide to Above Horizon, In Track, In PVT and real problems.
