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High-Precision GNSS RTK Modules Series
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Product Overview
Unlock ultimate spatial awareness and pinpoint navigation with our High-Precision GNSS RTK Module Series. Engineered to bridge the gap between industrial autonomy and agile hardware integration, this series offers scalable solutions ranging from ultra-compact positioning nodes to all-frequency, dual-antenna heading masters. Whether you are building an agile DIY drone, a fleet of autonomous robotic mowers, or high-security geodetic monitoring networks, our modules deliver flawless, drift-free centimeter-level accuracy across the globe.
1. G70 High-Precision Differential Positioning GNSS Module (Compact & Agile)
The G70 is a lightweight, ultra-compact differential positioning module designed for seamless multi-system integration. Offering a native single-point accuracy of ≤1.5m, it instantly elevates to a blistering 0.01m (centimeter-level) accuracy when fed with RTK differential correction signals. It is the ultimate go-to engine for drone enthusiasts, IoT developers, and makers requiring high sensitivity and ultra-low power consumption without spatial footprints.
2. G90 All-System All-Frequency GNSS Positioning & Heading Module (Industrial Master)
The G90 represents the absolute pinnacle of industrial-grade navigation. Built upon the legendary, proprietary NebulasIV SoC—which natively integrates an advanced RF baseband with robust high-precision algorithms—the G90 supports synchronized master/slave dual-antenna operations.
It tracks all global constellations across all frequency bands simultaneously (including BDS-3 global signals) to deliver real-time on-chip RTK positioning and dual-antenna heading, even when completely stationary. Driven by a cutting-edge Dual-RTK twin engine architecture, it features adaptive RTCM differential format recognition for instant, plug-and-play cross-platform deployment.
G70 Specifications
|
Parameter |
Sub-category |
Description |
|
Module Features |
Model |
WHEELTEC G70 |
|
Frequencies |
GPS L1/L2; GLONASS G1/G2; BeiDou B1/B2; Galileo E1/E5; QZSS L1/L2 |
|
|
Operating Mode |
GPS + QZSS + GLONASS + BeiDou + GALILEO multi-mode positioning |
|
|
Channels |
184 channels |
|
|
Sensitivity |
Tracking |
-167dBm |
|
Reacquisition |
-160dBm |
|
|
Cold Start |
-148dBm |
|
|
Hot Start |
-157dBm |
|
|
Accuracy |
RTK Horizontal Accuracy |
≤0.01m + 1 ppm CEP |
|
RTK Vertical Accuracy |
≤0.01m + 1 ppm CEP |
|
|
Single-point Horizontal Accuracy |
1.5m CEP |
|
|
Single-point Vertical Accuracy |
1.5m CEP |
|
|
Velocity Accuracy |
0.05 m/s |
|
|
1PPS Time Accuracy |
RMS 30ns / 99% 60ns |
|
|
TTFF (Start-up Time) |
Cold Start |
≤30s |
|
Hot Start |
≤5s |
|
|
Reacquisition |
≤2s |
|
|
Convergence Time |
Convergence Time |
≤10s |
|
Output Data |
Baud Rate |
4800bps - 921600bps, default 9600 |
|
Output Level |
TTL level, 232 level |
|
|
Output Protocol |
NMEA-0183, RTCM3.3, UBLOX |
|
|
Update Rate |
1Hz - 20Hz, default 5Hz (Should not exceed 5Hz, depends on output baud rate) |
|
|
FLASH |
4M FLASH, configuration can be modified, data is not lost when powered off |
|
|
Pulse Per Second (PPS) |
0.25Hz to 10MHz configurable, default period 1s, high level duration 100ns |
|
|
Carrier Phase Output |
Supported, outputs RAWX sentences |
|
|
Operating Limits |
Altitude |
≤50000m |
|
Velocity |
≤500m/s |
|
|
Acceleration |
≤4g |
|
|
Power |
Voltage |
5V |
|
Current |
500mA |
|
|
Physical Parameters |
Dimensions |
54.5*46.5*13.2mm |
|
Weight |
36g |
|
|
Data Output USB Interface |
Type-C |
|
|
Debugging Interface |
SH1.0*12PIN terminal |
|
|
Antenna Interface |
MCX |
|
|
Output Sentences |
Default NMEA Sentences |
GNRMC, GNVTG, GNGGA, GNGSA, GPGSV, GLGSV, GAGSV, GBGSV, GPGLL |
|
Operating Environment |
Operating Temperature |
-40°C to +85°C |
|
Storage Temperature |
-40°C to +125°C |
G90 Specifications
|
Parameter |
Sub-category |
Description |
|
Module Features |
Model |
WHEELTEC G90 |
|
Master Antenna Frequencies |
GPS: L1C/A, L2P(Y)/L2C, L5; GLONASS: L1, L2; Galileo: E1, E5a, E5b; BDS: B1I, B2I, B3I |
|
|
Slave Antenna Frequencies |
GPS: L1C/A, L2C |
|
|
Operating Mode |
GPS + QZSS + GLONASS + BeiDou + GALILEO multi-mode positioning |
|
|
Channels |
1408 channels |
|
|
Accuracy |
RTK Horizontal Accuracy |
RTK 0.8cm + 1 ppm CEP |
|
RTK Vertical Accuracy |
RTK 1.5cm + 1 ppm CEP |
|
|
Single-point Horizontal Accuracy |
1.5m CEP |
|
|
Single-point Vertical Accuracy |
2.5m CEP |
|
|
Heading Accuracy |
0.1° / 1m baseline |
|
|
Velocity Accuracy |
0.03 m/s |
|
|
1PPS Time Accuracy |
20ns |
|
|
TTFF (Start-up Time) |
Cold Start |
<30s |
|
Hot Start |
≤2s |
|
|
Reacquisition |
≤2s |
|
|
Output Data |
Baud Rate |
4800bps - 921600bps, default 115200 |
|
Output Level |
TTL level, 232 level |
|
|
Output Protocol |
NMEA-0183, RTCM3.3, Unicore Protocol |
|
|
Update Rate |
1Hz - 20Hz, default 1Hz (configured via command) |
|
|
Power |
Voltage |
5V |
|
Current |
500mA |
|
|
Physical Parameters |
Dimensions |
58.5*45*14mm |
|
Weight |
43g |
|
|
Data Output USB Interface |
Type-C |
|
|
Debugging Interface |
SH1.0*12PIN terminal |
|
|
Antenna Interface |
MCX |
|
|
Output Sentences |
Default NMEA Sentences |
GNRMC, GNVTG, GNGGA |
|
Operating Environment |
Operating Temperature |
-40°C to +85°C |
|
Storage Temperature |
-40°C to +125°C |
Full-Frequency Mushroom Head UFO Antenna Specifications
|
Parameter |
Description |
Parameter |
Description |
|
Gain |
5.5dBi |
LNA Gain |
40±2dB |
|
Antenna Axial Ratio |
≤3.0dB |
Noise Figure |
≤1.5dB |
|
Horizontal Coverage Angle |
360° |
Operating Voltage |
3.3 - 15V |
|
Output VSWR |
≤2VSWR |
Operating Current |
<50mA |
|
Phase Center Error |
±2mm |
Differential Transmission Delay |
≤5ns |
|
Polarization |
RHCP |
Connector Type |
TNC-K |
|
Port Impedance |
50 Ω |
Antenna Dimensions |
151*69mm |
|
Weight |
<330g |
Humidity |
95% non-condensing |
|
Operating Temperature |
-45°C to +70°C |
Waterproof Rating |
IP67 |
|
Frequency Range |
① BDS: B1/B2/B3 ② GPS: L1/L2/L5 ③ GLONASS: G1/G2/G3 ④ GALILEO: E1/E5a/E5b/E6 ⑤ QZSS: L1/L2/L5/L6 |
Storage Temperature |
-55°C to +85°C |
Selection Guide
If only precise positioning is required, the single-antenna G70 or G90 can be selected. If both positioning and heading functions are needed simultaneously, it is recommended to choose the more comprehensive G90 to satisfy high-precision positioning, heading, and multi-scenario application demands.
|
Model |
G70 |
G90 |
|
Chip |
UBLOX-ZED-F9P |
UM982 |
|
Antenna |
Single-antenna positioning |
Dual-antenna orientation/heading |
|
Update Rate |
1 - 10Hz |
1 - 20Hz |
|
Cold Start TTFF |
≤30s |
≤30s |
|
Hot Start TTFF |
≤5s |
≤5s |
|
Positioning Accuracy |
Single-point: Horizontal 1.5m, Elevation 2.5m Differential: Horizontal 0.4m + 1ppm, Elevation 0.8m + 1ppm RTK: Horizontal 1cm + 1ppm, Elevation 1.5cm + 1ppm |
Single-point: Horizontal 1.5m, Elevation 2.5m Differential: Horizontal 0.4m + 1ppm, Elevation 0.8m + 1ppm RTK: Horizontal 0.8cm + 1ppm, Elevation 1.5cm + 1ppm |
|
Heading Accuracy |
/ |
0.1° / 1m baseline |
|
Output Protocol |
NMEA-0183, RTCM, UBLOX |
NMEA-0183, RTCM, Unicore |
|
Signal Tracking |
BDS: B1I, B2I GPS: L1C/A, L2P(Y)/L2C GLONASS: L1, L2 Galileo: E1, E5a, E5b QZSS: L1, L2 |
BDS: B1I, B2I, B3I, B1C*, B2b* GPS: L1C/A, L2P(Y), L2C, L5 GLONASS: L1, L2 Galileo: E1, E5a, E5b, E6* QZSS: L1, L2, L5, L6 |
|
Antenna Installation Requirements |
The GNSS antenna must be installed on the top of the vehicle without any obstruction. Ensure there are no blockages within the range from 65° above the antenna to high-angle sky areas. |
1. The straight-line distance (baseline length) between the two antennas should be within the range of 0.5m to 1.5m to avoid signal interference. 2. The GNSS antenna must be installed on the top of the vehicle without any obstruction. Ensure there are no blockages within the range from 65° above the antenna to high-angle sky areas. |
|
Application Scenarios |
Low-speed autonomous driving, robotic mowers, precision agriculture, UAV trajectory positioning, low-speed unmanned vehicles |
Autonomous driving, mapping and surveying, precision agriculture, autonomous agricultural machinery, unmanned vehicles, UAVs, unmanned surface vessels (USVs) |
Key Feature Introduction
1.Supports Multi-Satellite System Joint Positioning
High sensitivity; supports multiple satellite signals including BDS B1/B2, GPS L1/L2, GLONASS L1/L2, and GALILEO E1/E5b, as well as multi-system joint positioning in any combination.
2.Full-Constellation Full-Frequency High-Precision Positioning and Orientation
Supports full-constellation, full-frequency signal reception and a dual-antenna architecture. It features powerful satellite tracking capabilities to achieve centimeter-level high-precision positioning and heading output, enabling precise orientation even in a stationary state.
Note: Only the G90 module supports the dual-antenna positioning and orientation function.
3.High-Precision GNSS Positioning
Connects to RTK services via 4G networks, making it lightweight and fast. It achieves high-precision positioning with uniform and stable errors, featuring a single-point positioning accuracy of ≤1.5m and an RTK positioning accuracy of ≤1cm + 1ppm.
1. Free Shipping Policy
We offer free standard shipping on orders.
2. Customs & Import Fees
All international shipments are subject to local customs regulations. Import duties, taxes, or other fees may be charged by your country's customs authority upon arrival.
Our shipping terms are based on Ex-Works (EXW) or FCA (Origin), which means any import duties, taxes, or local customs fees are the sole responsibility of the customer. While our carriers provide basic assistance with the clearance process, we are not responsible for delays or costs imposed by your local authorities.
Important: If a package is returned to us due to unpaid customs duties or a refusal to clear customs, any original shipping fees, return shipping costs, and related handling charges will be deducted from your refund.
3. Order Processing Time
Orders are typically processed within 24 hours after placement and shipped the next business day.
Orders placed on weekends or public holidays will be shipped on the next working day.
Once shipped, you will receive a confirmation email with tracking information.