RTK GNSS
TAU951M-P2 GNSS Module
TAU951M-P2 is a GNSS dual-band high-precision RTK navigation and positioning module based on the state-of-the-art CYNOSURE IV dual-core SoC (22 nm). It tracks all global civil systems (BDS, GPS, GLONASS, Galileo, QZSS, NavIC and SBAS) as well as BDS-3 signals, with an internal PVT, RTD and RTK engine delivering centimeter-level positioning. Suitable for smart driving, surveying and mapping, UAVs, intelligent agriculture and other high-precision applications.
SystemGPS / BDS / GAL / GLO / QZSS / NavIC
AccuracyRTK 1 cm + 1 ppm (H)
BandL1 + L2/L5
Use CaseSurveying / UAV / Agriculture
Key Features
Why TAU951M-P2 Stands Out
Dual-band high-precision RTK positioning module with 128 channels and centimeter-level accuracy for surveying, UAV and precision agriculture.
Centimeter-Level RTK
RTK accuracy of 1.0 cm + 1 ppm (H) / 2.0 cm + 1 ppm (V) with internal RTK engine.
Dual-Band Multi-Constellation
128 GNSS channels tracking L1/L2/L5 bands across all constellations, including BDS-3 B1C/B2a.
PPP Support
Supports PPP-B2b / PPP / PPP-RTK (upon request) for wide-area high-precision service.
Robust & Flexible
Smart jammer detection and suppression, A-GNSS support and four low-power modes.
Technical Specifications
Specification Overview
Key electrical and performance parameters for TAU951M-P2. Full details are available in the official datasheet.
| Parameter | Specification |
|---|---|
| GNSS Reception | GPS/QZSS: L1C/A, L1C, L2C, L5 · BDS: B1I, B1C, B2I, B2a · GLONASS: G1, G2 · Galileo: E1, E5a, E5b · NavIC: L5 · SBAS: L1 |
| Channels | 128 GNSS signal channels, 10 Hz maximum update rate |
| Position Accuracy | GNSS 1.0 m CEP · RTK 1.0 cm + 1 ppm (H) / 2.0 cm + 1 ppm (V) |
| Sensitivity | Cold start -148 dBm · Hot start -155 dBm · Tracking -165 dBm |
| TTFF | Hot start 1 s · Cold start 27 s |
| Velocity & Time | 0.05 m/s CEP · 1PPS 20 ns RMS |
| Power Consumption | 30 mA @ 3.3V tracking · 16 µA data backup |
| Voltage | 1.75 – 3.63 V main / I/O · 1.62 – 3.63 V backup |
| Interfaces | UART × 2 · SPI × 1* · I2C × 1* |
| Operating Temperature | -40°C to +85°C |
| Package | 24-pin LCC · 16.0 × 12.2 × 2.4 mm |
Performance Notes
TAU951M-P2 achieves sub-meter-level accuracy even without correction data from ground-based augmentation stations, with higher sensitivity and improved jam resistance and multipath mitigation for robust service in complicated environments.
Dual-band high-precision RTK positioning module with 128 channels and centimeter-level accuracy for surveying, UAV and precision agriculture.
- > Internal PVT, RTD and RTK engines
- > PPP-B2b / PPP / PPP-RTK support upon request
- > Smart jammer detection and suppression
- > Four kinds of low-power modes
Applications
Where TAU951M-P2 Fits Best
Four representative scenarios showing how TAU951M-P2 supports reliable positioning products.
Surveying & Mapping
Centimeter-level positioning for survey workflows
Precision Agriculture
RTK-guided farming and autonomous machinery
UAV
High-precision navigation for industrial drones
Smart Driving
Centimeter-grade positioning for autonomous systems
Why Choose TAU951M-P2
Advantages at a Glance
What TAU951M-P2 brings to your product — technically and commercially.
True RTK performance from a compact LCC module — no extra RTK board needed
PPP support enables high precision without local base stations
10 Hz update rate supports dynamic and autonomous applications
22 nm CYNOSURE IV platform balances performance and power
TAU951M-P2 VALUE
Designed for Practical Deployment
The module balances performance, integration simplicity and industrial reliability for scalable product development.
L1 + L2/L5Key capability
RTK 1 cm + 1 ppmPositioning performance
128 ChannelsArchitecture
SMTLCC package, industrial grade
Downloads
Documents & Resources
Download the files you need for product evaluation, hardware development and integration.
Datasheet PDF
Product overview, technical parameters and performance description for TAU951M-P2.
DownloadHardware Design Guide
Reference layout, antenna guidance and suggested design considerations.
RequestIntegration Guide
Step-by-step integration notes for firmware, interfaces and system bring-up.
RequestFAQ
Frequently Asked Questions
Common questions about TAU951M-P2 functionality and typical use cases.
With RTK corrections, TAU951M-P2 delivers 1.0 cm + 1 ppm horizontal and 2.0 cm + 1 ppm vertical accuracy. Standalone GNSS accuracy is 1.0 m CEP.
Yes. PPP-B2b, PPP and PPP-RTK are supported upon request, enabling high-precision positioning without a local base station.
It tracks 128 channels across GPS, BDS, GLONASS, Galileo, QZSS, NavIC and SBAS, including BDS-3 B1C/B2a signals, in L1/L2/L5 bands.
Yes. With 10 Hz update rate, centimeter-level RTK accuracy and low power consumption, it is well suited for industrial UAV navigation and precision agriculture drones.
Need a GNSS Module for Your Project?
Contact our engineering team for technical guidance, sampling support and quotation assistance for TAU951M-P2 or other GNSS solutions.