Description:
LC29H concurrently receives and processes signals from all constellations (GPS, GLONASS, BeiDou, Galileo and QZSS), which in combination with the support of SBAS maximizes satellite signal availability. The module supports L1 and L5 dual-band signal reception, thereby ensuring that terminals can speed up convergence time, improve positioning accuracy, and achieve fast response times even when the signal is interrupted. The dual band design significantly mitigates the multipath effect experienced near high-rise buildings or in deep urban canyons, and provides reliable positioning performance.
RTK and DR for high-precision GNSS positioning
In addition, some versions contain 6-axis IMU inertial sensors (3-axis accelerometer + 3-axis gyroscope), and integrate RTK and DR positioning algorithms, allowing for continuous lane-level accurate positioning in scenarios where the satellite signal is partially or completely blocked, such as underground parking lots, tunnels, urban-canyons or forests. When the satellite signal is re-acquired, the LC29H combines inertial sensor data with GNSS signals, and the integrated navigation can provide fast convergence times and decimeter level positioning accuracies. In order to improve the performance when used with a passive Antenna, the LC29H has a built-in LNA and an internal SAW filter, ensuring high sensitivity and excellent positioning accuracy.
Application:
Vehicle and person tracking devices
Positioning equipment
Portable digital equipment
Specifications:
Operating Temperature -40 °C to +85 °C
Storage Temperature -40 °C to +90 °C
Supported Bands
GPS/ QZSS: L1 C/A, L5
GLONASS: L1
Galileo: E1, E5a
BDS: B1I, B2a
Default GNSS Constellation GPS + GLONASS + Galileo + BDS +
QZSS
Number of Concurrent GNSS 4 + QZSS
SBAS WAAS, EGNOS, MSAS and GAGAN
Velocity Accuracy③ 0.2 m/s
Accuracy of 1PPS Signal③ 20 ns
TTFF (with AGNSS)④ Full Cold Start: 5 s
TTFF (without AGNSS)③
Full Cold Start: 26 s
Warm Start: 16 s
Hot Start: 1 s
Sensitivity
Acquisition: -147 dBm
Tracking: -165 dBm
Reacquisition: -159 dBm
Dynamic Performance③
Maximum Altitude: 10000 m
Maximum Velocity⑤: 500 m/s
Maximum Acceleration⑤: 4g
Nav. Update Rate 1–10 Hz
Raw Data Update Rate GNSS: 1 Hz
I2C Up to 400 kbps
UART Adjustable: 9600–3000000 bps
Default: 115200 bps
Protocol NMEA 0183/ RTCM 3.x
Supply Voltage Range 3.1–3.6 V, Typ. 3.3 V
I/O Voltage Typ. 2.8 V
Current Consumption
(@ Default GNSS
Constellations, 3.3 V)③
Normal Operation:
24 mA @ Acquisition
24 mA @ Tracking
Power Saving Mode:
25 μA @ Backup Mode