Imagine a device that never loses its place, even in a tunnel or a crowded city. The Quectel LG69T (AP) GNSS Module is a small satellite receiver that gives you precise location, speed and time data. Many developers face weak signals, slow start-up and inaccurate positioning, which can ruin a navigation or tracking project. This module fixes those problems with fast acquisition, multi-constellation support and a built-in IMU, so you can trust every coordinate.
Quectel LG69T (AP) GNSS Module
When a GNSS receiver cannot lock quickly or provides poor accuracy, the whole system suffers. Inaccurate data leads to wrong routes, wasted fuel and lost assets. The LG69T (AP) solves this by tracking 80 satellites, supporting GPS, Galileo, BDS and QZSS, and delivering centimeter-level RTK accuracy. Its 10 Hz update rate and integrated IMU give smooth motion data, while low power modes keep battery life long. In short, it turns unreliable positioning into a dependable foundation for any project.
Key Features
-
- 80 tracking channels and 4 fast acquisition channels.
- Supports GPS L1/L5, Galileo E1/E5a, BDS B1I/B2a, QZSS L1/L5.
- Horizontal accuracy 1 m (autonomous) and 0.01 m (RTK).
- Update rate up to 10 Hz for PVT and 100 Hz for raw IMU data.
- UART 2 (115200-921600 bps) and CAN 1 interfaces.
- Power supply 3.0-3.6 V, typical 3.3 V, with 55 A backup current.
- Cold start time 10 s with AGNSS, 36 s without.
- CE and RoHS certified, manufactured in ISO/TS 16949 facilities.
Specifications
| General |
|
| Dimensions (mm) |
22.0 × 17.0 × 3.3 |
| Weight (g) |
Approx. 2.7 |
| Temperature Range |
|
| Operating Temperature |
-40 °C to +85 °C |
| Storage Temperature |
-40 °C to +95 °C |
| GNSS Features |
|
| Supported Bands |
GPS: L1 C/A; L5
Galileo: E1; E5a
BDS: B1I; B2a
QZSS: L1 C/A; L5 |
| Functions |
PVT① (DR + RTK + Heading②) |
| Integrated IMU |
Supported |
| Default GNSS Constellations |
GPS + Galileo + BDS + QZSS |
| Channels |
80 Tracking Channels; 4 Fast Acquisition Channels |
| SBAS |
- |
| Horizontal Position Accuracy |
Autonomous③: 1.0 m; RTK④: 0.01 m + 1 ppm |
| Vertical Accuracy |
RTK④: 0.02 m + 1 ppm |
| Velocity Accuracy⑤ |
Without Aid: 0.1 m/s |
| Acceleration Accuracy⑤ |
Without Aid: 0.1 m/s² |
| Convergence Time |
RTK④: 10 s |
| Accuracy of 1PPS Signal⑤ |
50 ns |
| Heading Accuracy |
Heading (measured with 1 m baseline): 0.2°; DR (measured without signal, 1 km): 1° |
| TTFF (with AGNSS) |
Cold Start: 10 s |
| TTFF (without AGNSS)⑤ |
Cold Start: 36 s; Warm Start: 30 s; Hot Start: 3 s |
| Sensitivity (@ Default Constellations)⑥ |
Acquisition: -145 dBm; Tracking: -160 dBm; Reacquisition: -153 dBm |
| Dynamic Performance⑤ |
Maximum Altitude: 18000 m; Maximum Velocity⑦: 515 m/s; Maximum Acceleration⑦: 4g |
| Update Rate (Max.) |
PVT①: 10 Hz (DR); IMU raw data: 100 Hz |
| Interfaces |
|
| UART |
×2; UART1/UART2: 115200–921600 bps (Adjustable); 460800 bps (Default) |
| CAN |
×1 |
| Protocols |
|
| Protocols |
NMEA 0183/RTCM 3.x |
| External Antenna Interface |
|
| Antenna Type |
Active |
| Antenna Power Supply |
External or Internal (through VDD_RF) |
| Electrical Characteristics |
|
| Supply Voltage Range |
3.0–3.6 V, typ. 3.3 V |
| I/O Voltage |
Same as VCC |
| Current Consumption (@ Default Constellations, 3.3 V)⑤ |
Normal Operation: Acquisition: 360 mA; Tracking: 360 mA;
Power Saving Mode: Backup mode: 55 μA
|
| Certifications |
|
| Regulatory |
Europe: CE* |
| Others |
RoHS |
| Quality & Reliability |
|
| Quality & Reliability |
Manufactured and fully tested in ISO/TS 16949 certified production sites |
| Note |
①: PVT stands for Position, Velocity and Time.
②: To achieve the Heading function, LG69T (AP) needs to be used in combination
with LG69T (AM).
③: CEP, 50 %, 24 hours static, -130 dBm and more than 6 SVs.
④: CEP, 50 %, with active high-precision antennas in an open-sky environment and
within 1 km from the base station.
⑤: All satellites at -130 dBm.
⑥: Demonstrated with a low noise external LNA.
⑦: ITAR limits.
*: Under development/in progress.
All measurements are conducted at room temperature
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