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Connecting a Septentrio mosaic-X5 to ROS is straightforward: install the official septentrio_gnss_driver (ROSaic) package, plug the receiver into your computer over USB or serial, set the device parameter in rover.yaml, and launch the driver. The node then publishes standard ROS messages such as /navsatfix and /gpsfix that any robot or drone stack can consume. This…

Yes – a GNSS receiver should typically track 25-40 satellites and use 4-30 in its PVT solution, depending on the positioning mode. SBF Analyzer’s Satellite Count charts show three distinct metrics – SVs Above Horizon, SVs in Track, and SVs in PVT – and each answers a different question about receiver health and solution quality….

Yes — you can determine GNSS-based attitude (heading, pitch, and roll) from a moving base. A moving base receiver streams RTCM 3.x differential corrections to a rover, giving centimetre-level relative RTK positioning; with a second antenna forming a known baseline, the same RTK solution yields attitude. With the Septentrio mosaic-G5 P3H, a 1 m baseline…

— For UAV High-Precision Positioning Scenarios — RxTools is the professional configuration and diagnostics software that accompanies Septentrio high-precision GNSS receivers — and an indispensable tool in UAV high-precision positioning system integration. Compared with other GNSS receiver software on the market, four core advantages stand out: native Linux support, integrated spectrum analysis (no external hardware…

Choosing a GNSS antenna comes down to five technical decisions: frequency bands, gain and LNA performance, multipath rejection, form factor, and the interference environment it must survive. A multi-frequency antenna with a clean low-noise amplifier preserves the centimeter-level accuracy your receiver is capable of — while a mismatched or poorly filtered antenna quietly caps the…

Choosing a GNSS receiver for surveying or GIS data collection comes down to five technical decisions: accuracy class (RTK, PPK, or PPP), frequency support (dual- vs triple-band), constellation tracking, interference robustness, and field workflow fit. For professional survey work, a multi-frequency, multi-constellation receiver with RTK capability and serious anti-jamming performance delivers reliable centimeter-level results —…

Choosing a GNSS antenna for a UAV comes down to five engineering decisions: frequency bands, radiation pattern, low-noise amplifier (LNA) performance, multipath rejection, and mechanical fit. For RTK drones you need a multi-band active antenna covering L1/L2/L5 with a hemispherical pattern and an LNA that survives the drone’s own RF noise. Get these right and…

A choke ring antenna reduces multipath by surrounding the GNSS antenna element with concentric conductive rings that act as a high-impedance ground plane, attenuating reflected satellite signals arriving from below the horizon. The rings suppress low-elevation multipath by 20–40 dB before it reaches the element — the difference between meter-level code errors and centimeter-level RTK accuracy…

RTK GNSS for Construction Machine Control: Precision Earthmoving Without the Stakes If you are running a heavy civil or site-development operation, you already know the drill: grade stakes every few meters, a survey crew checking cut and fill, and the inevitable rework when the blade goes a couple of centimetres too deep. RTK GNSS for…