Septentrio mosaic-X5 vs u-blox ZED-F9P — GNSS Module Comparison
The mosaic-X5 and ZED-F9P are two of the most widely deployed high-precision GNSS OEM modules. This comparison covers accuracy, constellation support, anti-jamming, power, and application fit for UAV, robotics, agriculture, and surveying integrations.
Module Overview
Septentrio mosaic-X5
Premium multi-constellation GNSS OEM module
u-blox ZED-F9P
Widely adopted high-precision GNSS OEM module
Full Specification Comparison
| Feature | Septentrio mosaic-X5 | u-blox ZED-F9P |
|---|---|---|
| RTK horizontal accuracy | 6 mm + 0.5 ppm | 10 mm + 1 ppm |
| RTK convergence | < 5 seconds (typical) | < 10 seconds |
| Channels | 800+ | 184 |
| Frequency bands | L1/L2/L5/L6 · E1/E5a/E5b/E6 · B1/B2/B3 | L1/L2 (standard) · L1/L5 (F9P-15B variant) |
| Constellations | GPS, GLONASS, Galileo, BeiDou, NavIC, QZSS, SBAS | GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS |
| Anti-jamming | AIM+ active interference mitigation | None |
| Anti-spoofing | OSNMA Galileo signal authentication | None |
| Max update rate | 100 Hz | 20 Hz |
| Operating temperature | −40 to +85 °C | −40 to +85 °C |
| Community & ecosystem | Good — RxTools, RINEX, SBF format | Very large — ArduPilot, PX4, ROS native drivers |
| Approx. module price | Higher (premium) | ~$200 OEM |
| Available via Eview GNSS | Yes — contact for pricing | No |
Best Module for Each Application
UAV / drone mapping (PPK or RTK)
Both modules work well. The ZED-F9P has native ArduPilot/PX4 support and a lighter ecosystem. The mosaic-X5 adds AIM+ for RF-noisy motor environments and 100 Hz output for fast-moving platforms.
mosaic-X5 for demanding/noisy environmentsRobotics / ROS integration
The ZED-F9P has well-maintained ROS drivers (nmea_navsat_driver, ublox) and a huge community. The mosaic-X5 also supports ROS but requires more integration effort.
ZED-F9P for faster ROS integrationSurveying / GIS (OEM integration)
The mosaic-X5 delivers better RTK accuracy (6 mm vs 10 mm), supports L6/E6 PPP-RTK correction services, and initialises faster. Preferred for precision-critical applications.
mosaic-X5 for highest accuracyEnvironments with GNSS jamming
Only the mosaic-X5 includes AIM+ active jamming mitigation. In any deployment near high-power radios, construction equipment, or urban RF environments, the ZED-F9P has no protection.
mosaic-X5 — no competition hereBudget / hobbyist projects
The ZED-F9P at ~$200 OEM is widely available on ArduSimple and SparkFun boards. Excellent value for projects where anti-jamming is not required.
ZED-F9P for cost-sensitive projectseVTOL / advanced air mobility
OSNMA signal authentication on the mosaic-X5 provides cryptographic spoofing protection — important for high-integrity navigation in airspace. The ZED-F9P cannot verify signal authenticity.
mosaic-X5 for safety-critical flightVerdict
Choose mosaic-X5 (via Eview GNSS) when:
Your application demands the highest RTK accuracy, fastest convergence, anti-jamming resilience, or OSNMA signal authentication. The mosaic-X5 is the professional-grade choice for UAVs in RF-noisy environments, eVTOL navigation, precision survey, marine, and any safety-critical deployment where signal integrity cannot be compromised.
Enquire about mosaic-X5 →Choose ZED-F9P when:
Budget is a primary constraint and your application operates in a clean RF environment. The ZED-F9P’s massive open-source community, native ArduPilot/PX4 support, and low module cost make it the default choice for hobbyist and maker-grade RTK projects where the extra accuracy and protection of the mosaic-X5 are not required.
Visit u-blox →Interested in the mosaic-X5?
Eview GNSS Technology Ltd offers mosaic-X5 based receivers and integration support for professional applications. Contact us for pricing and datasheet.
The Problem: Jamming and Interference Are Everywhere
GNSS signals arrive at Earth’s surface at extremely low power — roughly equivalent to a 20-watt light bulb viewed from 20,000 km away. Any nearby radio transmitter can overwhelm them.
Common sources of GNSS interference:
- Telecommunications towers (4G/5G, Wi-Fi hotspots)
- Power lines and solar inverters (broadband harmonics)
- Nearby radio transmitters (UHF/VHF, AM/FM broadcast)
- Deliberate jamming (personal privacy devices, military zones)
- Co-located antennas (Wi-Fi, Bluetooth on the same platform)
The u-blox ZED-F9P handles approximately 25 dB of jamming immunity in typical configurations. In environments with moderate to strong interference, this often leads to:
- Loss of RTK fix
- Degraded positioning accuracy (meter-level instead of centimeter-level)
- Extended re-convergence times
- Complete signal loss in extreme cases
The Solution: Septentrio-Based Alternatives with AIM+ Anti-Jamming
Eview GNSS Solutions integrates Septentrio mosaic modules — the industry leader in GNSS resilience — into ready-to-use receivers and boards.
The key differentiator is AIM+ (Advanced Interference Mitigation) technology.
| Feature | u-blox ZED-F9P | Eview (Septentrio mosaic-based) |
|---|---|---|
| Anti-jamming immunity | ~25 dB | 60 dB (AIM+) |
| RTK convergence | 10–45 seconds | 5–15 seconds |
| Multipath rejection | Standard (HPS) | H-shield + MLAMBDA |
| Signal tracking | GPS + GLONASS + Galileo + BeiDou | Full multi-constellation + L-Band |
| Anti-spoofing | Basic | Advanced (signal authentication) |
Real-World Impact
In a recent field test near a 5G cell tower:
- ZED-F9P lost RTK fix within 3 meters of the tower and took 40+ seconds to re-converge after passing it
- Eview receiver (Septentrio mosaic) maintained centimeter-level RTK throughout the entire pass