Looking for centimeter-level positioning that works in the toughest outdoor conditions? The Quectel LG680P (03) Multi-Band 1040-Channel High-Precision RTK GNSS Module gives you that level of accuracy while keeping power use low. It solves the common problem of weak signals and slow convergence that many users face with older GPS chips. If you need reliable, real-time kinematic data for drones, survey rigs, or autonomous vehicles, this module is the answer.
Quectel LG680P (03) Multi-Band 1040-Channel High-Precision RTK GNSS Module
Many mapping and navigation projects suffer from drift, long start-up times, and loss of lock when the sky is partially covered. Those issues waste time and can cause costly errors. This Quectel module tackles the problem by supporting six global constellations, offering 1040 tracking channels, and delivering RTK accuracy of less than one centimeter. The result is fast convergence, strong signal tracking, and precise positioning even in challenging environments.
Key Features
- Multi-band support: GPS L1/L2C/L5, GLONASS L1/L2, Galileo E1/E5a/E5b/E6, BDS B1I/B1C/B2I/B2a/B2b/B3I, QZSS L1/L2C/L5/L6, NavIC L5.
- 1040 tracking channels for high signal diversity.
- RTK mode delivers 0.8 cm + 1 ppm horizontal accuracy.
- Operating temperature from -40 C to +85 C.
- Update rate up to 20 Hz for smooth motion tracking.
- UART (3 ports), I2C, SPI, and CAN interfaces for flexible integration.
- Supports NMEA 0183, RTCM 3.x, and QGC protocols.
- External active antenna option for improved gain.
- Power range 3.0-3.6 V, typical 3.3 V, with 88 mA acquisition current.
- RoHS compliant for environmentally safe design.
Specifications
| Product |
LG680P (03) GNSS Module |
| Dimensions |
22.0 mm × 17.0 mm × 2.7 mm |
| Weight |
Approx. 1.7 g |
| Operating Temperature |
-40 °C to +85 °C |
| Storage Temperature |
-40 °C to +95 °C |
| Supported Bands |
GPS: L1 C/A, L2C, L5
GLONASS: L1, L2
Galileo: E1, E5a, E5b, E6
BDS: B1I, B1C, B2I, B2a, B2b, B3I
QZSS: L1 C/A, L2C, L5, L6
NavIC: L5 |
| Default Constellations |
GPS + GLONASS + Galileo + BDS + QZSS + NavIC |
| Number of Tracking Channels |
1040 |
| Number of Concurrent GNSS |
5 + QZSS |
| SBAS |
WAAS, EGNOS, BDSBAS, MSAS, GAGAN, KASS, ASECNA, SouthPAN, SDCM |
| Function |
RTK |
| Horizontal Position Accuracy |
Autonomous: 1 m, RTK: 0.8 cm + 1 ppm |
| Vertical Position Accuracy |
Autonomous: 1.5 m, RTK: 1.5 cm + 1 ppm |
| Velocity Accuracy |
Without Aid: 0.03 m/s |
| 1PPS Signal Accuracy (1σ) |
5 ns |
| RTK Convergence Time |
5 s |
| Sensitivity (@ Default Constellations) |
Acquisition: -145 dBm, Tracking: -160 dBm, Reacquisition: -155 dBm |
| Dynamic Performance |
Maximum Altitude: 10000 m, Maximum Velocity: 490 m/s, Maximum Acceleration: 4g |
| Update Rate |
Default: 10 HzMax: 20 Hz |
| UART |
Supported (×3), Adjustable: 9600–3000000 bps, Default: 460800 bps |
| I2C* |
Supported (×1), Max. 400 kbps |
| SPI* |
Supported (×1), Recommended baud rate range: 1–3 Mbps |
| CAN* |
Supported (×1, Multiplexed from UART3) |
| Protocols |
NMEA 0183, RTCM 3.x and QGC |
| Antenna Type |
External active antenna⑥ |
| Antenna Power Supply |
External or Internal |
| Supply Voltage Range |
3.0–3.6 V, Typ. 3.3 V |
| I/O Voltage |
Typ. 3.3 V |
| Current Consumption |
Normal Operation:
88 mA (290.4 mW) @ Acquisition
96 mA (316.8 mW) @ Tracking
Power Saving Mode:
18 μA (59.4 μW) @ Backup Mode |
| Other Certifications |
RoHS |
