The NaviSys GR-U01 is an industrial-grade GNSS receiver built on u-blox’s M10 Base GNSS engine, featuring ultra-low power consumption at just 16 mA without compromising its 1.5-meter accuracy.
The GR-U01 supports concurrent tracking of all four L1 GNSS constellations: GPS, GLONASS, Galileo, and BEIDOU, with an impressive update rate of up to 18 Hz.
It excels with advanced features such as anti-jamming and RF interference detection, as well as spoofing detection and reporting, ensuring reliable and secure positioning in challenging environments.
Despite its advanced capabilities, the GR-U01 maintains a compact form factor, with dimensions of 40 x 45 x 16 mm. The receiver is an industrial and commercial grade GNSS receiver with IPX7 waterproof, fully EMI shielded, and operates within a wide temperature range from -40°C to +85°C.
u-blox "U-Center 2" Tool
The GR-U01 utilizes the u-blox M10 chip, ensuring full compatibility with the latest u-center 2 software for fast and efficient GNSS receiver configuration in key applications. u-blox offers comprehensive user and developer documentation to support easy evaluation and streamlined development.
The U-center 2 software is specifically designed for u-blox M10 and F10 products. It is available for free download from the u-blox website, and we have also provided a copy below for your convenience.
Navisys "NaviViewerUx" Tool
In addition to the comprehensive U-Center 2 tool, the manufacturer Navisys also provides a convenient tool for easy configuration and diagnostics of the GR-U01 GNSS receiver.
GM-U01 Module
If you only need the module rather than a complete industrial-grade GNSS receiver, consider the GM-U01, which is the module version of the GR-U01 GNSS receiver.
Receiver Specifications
GNSS receiver type:
• u-blox M10 engine
• GPS, SBAS: L1 C/A: 1575.42 MHz
• QZSS: L1 C/A/S: 1575.42 MHz
• Galileo: E1 B/C: 1575.42 MHz
• GLONASS: L1OF: 1598.0625~1605.375 MHz
• BeiDou: B1I: 1561.098 MHz; B1C: 1575.42 MHz
Horizontal Position Accuracy:
• 1.5m (GPS+QZSS+SBAS)
(CEP, 50%, 24hr static, -130dBm, 6+ SVs for each system)
Velocity Accuracy:
• <0.05 m/s (speed)
• <0.3° (heading)
(50%@30 m/s)
Accuracy of Time Pulse Signal:
• RMS: 30 ns, 99%: <60 ns
• 0.5 ms for PPS over USB
TTFF (Time to First Fix):
• Hot Start: 1 sec
• Cold Start:
• 28 s: GPS+GAL
• 23 s: GPS+GAL+GLO
• 27 s: GPS+GAL+BDS B1I (default)
• 28 s: GPS+GAL+BDS B1C
• 23 s: GPS+GAL+GLO+BDS B1C
Sensitivity dBm (Autonomous):
• Acquisition: -148 (GPS & Galileo or more)
• Tracking: -167 (GPS & Galileo or more)
Measurement Data Output:
• UART: N,8,1; bauds 4800, 9600, 19200, 38400 (default), 57600, 115200, 230400, 460800, 921600 bps;
• NMEA versions 2.1, 2.3, 4.0, 4.10, and 4.11 (default)
• UBX (u-blox proprietary)
• GGA, GLL, GSA, GSV, RMC, VTG, TXT
• Datum: WGS-84
Navigation Update Rate:
• Default 1Hz
• 5 Hz for GPS+GAL+GLO+BDS B1C
• 8 Hz for GPS+GAL+BDS B1C
• 5 Hz for GPS+GAL+BDS B1I
• 7 Hz for GPS+GAL+GLO
• 10 Hz for GPS+GAL
• 18 Hz for GPS only
Max. Altitude:
• < 80,000 m
Max. Velocity:
• < 500 m/s
Augmentation Support:
• SBAS: WAAS, EGNOS, MSAS, GAGAN
• QZSS (L1S SLAS)
Dynamics:
• < 4g
Power Consumption:
• (29 GNSS SVs fixed for tracking)
• USB: 59 / 56 mA
• RS232: 22 / 19 mA
• TTL: 19 / 16 mA
Power Supply:
• 3.3 ~ 5.5 V
Backup Power:
• 3.3 V
Dimension:
• 40 (W) x 45 (L) x 16 (H) mm
Cable Length:
• 1.5 m for GR-U01U (default, customizable)
• 3 m for GR-U01R
• <1 m for GR-U01T
Operating Temperature:
• -40°C to +85°C (-20~60°C for backup battery)
Storage Temperature:
• -40°C to +85°C (-40~60°C for backup battery)
Package Content:
• Navisys GR-U01 GNSS Receiver x 1
Product Resources
Official Documents:
Driver Downloads:
(For Windows 10, Windows 11, Android, and Linux, native drivers are already included with the operating system. There’s no need to download or install additional drivers. Simply plug in the GNSS receiver, and it will be recognized and start working immediately.)
- Windows Drivers
- WinCE for x86
- WinCE for ARM/xScale
- MacOS driver
- Linux Driver for Linux Kernel is V2.6.15 0 V5.4
- USB GNSS driver already built-in to Linux OS 5.5 and above. No need to downloads.