The short answer: GPS is a single satellite constellation operated by the United States, while GNSS (Global Navigation Satellite System) is the umbrella term for all satellite navigation constellations — GPS, GLONASS, Galileo and BeiDou. A GNSS receiver tracks satellites from several constellations at once, whereas a GPS-only receiver can only use US satellites. For…
The Septentrio mosaic-X5 is a compact OEM GNSS receiver module that packs 448 hardware channels of multi-constellation, multi-band tracking, centimetre-level RTK, and Septentrio’s AIM+ anti-jamming into a board measuring just 71 × 59 × 12.7 mm. In short: it is a complete high-precision positioning engine built to be embedded in UAVs, robots, survey instruments and…
Dual antenna GNSS heading is a technique that measures a vehicle’s orientation (yaw angle) by comparing the carrier-phase signals from two GNSS antennas mounted a fixed distance apart on the same platform. Because it derives direction from satellite geometry rather than the Earth’s magnetic field, it needs no compass, no moving parts, and keeps providing…
How to pick a GNSS receiver for ROS robots: Septentrio ROSaic compatibility, INS YAML config, official vs DIY driver, and a boundary-free RTK mowing-robot case study.
A choke ring antenna is used to suppress multipath — reflected GNSS signals that corrupt positioning — so a receiver can hold stable, centimeter-level accuracy. Concentric conductive rings block signals arriving at low elevation angles, making this antenna the reference-grade choice for permanent reference stations, geodetic networks, deformation monitoring, precision agriculture, and high-accuracy surveying. How…
The best GNSS receiver for Pixhawk is a multi-band, multi-constellation RTK module that outputs UBX, NMEA, or SBF over UART — and for professional operations that means a Septentrio-based receiver such as the mosaic-X5 used in Eview’s industrial products, which adds 40–60 dB of AIM+ anti-jamming to centimeter-level RTK. Hobby builds do fine with a…
GNSS receivers built on Septentrio technology — the mosaic-X5 and Eview’s industrial receiver boxes — offer the best anti-spoofing protection available to commercial buyers today. They combine AIM+ interference mitigation (40–60 dB jamming margin), OSNMA signal authentication, and receiver-level spoofing detection that consumer modules like the u-blox F9P simply do not have. What “Anti-Spoofing” Actually…
For ArduPilot, the best GNSS module is one that speaks standard UBX or NMEA over UART (or DroneCAN), updates at 5–10 Hz, and matches your mission: a u-blox M8N or M9N for basic flight, a u-blox ZED-F9P or Septentrio mosaic-X5 for RTK centimetre accuracy, and a Septentrio module with AIM+ anti-jamming when you operate near RF…
The Septentrio mosaic-X5 tracks every major civilian GNSS frequency band: GPS L1/L2/L5, GLONASS L1/L2/L3, Galileo E1/E5a/E5b/E6, BeiDou B1I/B1C/B2I/B2a/B2b/B3I, QZSS L1/L2/L5/L6, SBAS and L-band for PPP — 448 channels in one compact module. If a constellation broadcasts a civilian signal, the mosaic-X5 can receive it, on all bands at the same time — which means faster…
Septentrio AIM+ anti-jamming GNSS receivers held centimeter-level RTK through ~100 jamming and spoofing scenarios at Jammertest 2025 — while competitor receivers showed errors of meters and >10 m.
