The LC29H series can track L1+L5 dual-frequency and multi-GNSS signals, reducing multipath effects in urban canyons and improving positioning accuracy while maintaining low power consumption. With built-in LNA and SAW filter to achieve high sensitivity and strong anti-interference capability. Adopts dual-band positioning and RTK technology to meet the need of centimeter-level high-precision positioning. Ideal for real-time tracking systems and sharing economy applications, helping to develop applications such as drones, smart farm machinery, shared two-wheelers, etc.
- Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano
- Supports simultaneous tracking of L1+L5 dual-band satellite signals, reducing multipath effects in urban canyons and improving positioning accuracy
- Supports concurrent receiving of multi-GNSS systems (GPS, BDS, GLONASS, Galileo and QZSS) while maintaining low power consumption
- Built-in low noise amplifier and acoustic surface filter to realize -165dBm high sensitivity and enhance anti-interference performance
- Supports multi-frequency active interference cancellation, effectively suppressing or eliminating narrowband signal (WiFi/2/3/4/5G) interference to ensure navigation accuracy
- A-GNSS (Assisted GNSS) support, reducing the time to first fix (TTFF) with cold start when powered on to 5 seconds
- Support QGNSS software, easy to set various module functions
- Onboard battery holder, supports ML1220 rechargeable cell, for preserving ephemeris information and hot starts
- Onboard 4 LED indicators for module operating status
- Comes with online development resources and manual (Python examples for Raspberry Pi/Jetson Nano)
RTK Mobile Station, RTK base station, Centimeter positioning
The LC29H(BS) module is used as an RTK Base Station, while the LC29H(DA) module is used as an RTK Mobile Station. By setting up continuous running reference stations on the ground known fixed coordinates using the LC29H (BS) module, or by paid RTK base station enhanced services, transmitting GNSS calibration value to LC29H (DA) terminals which uploading rough positioning data, the terminals, with errors like multipath refraction, is able to calculate error value in real time, for centimeter-level positioning in seconds.
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Technical data
| Product | LC29H(AA) GPS HAT | LC29H(DA) GPS/RTK HAT | LC29H(BS) GPS/RTK HAT | ZED-F9P GPS-RTK HAT | |
| Frequency band | GPS/QZSS: L1C/A, L5 BDS: B1I, B2a Galileo: E1, E5a GLONASS: L1 | GPS/QZSS: L1C/A, L2C BDS: B1I, B2I Galileo: E1B/C, E5a GLONASS: L1OF, L2OF | |||
| NUMBER OF CONCURRENT GNSS | GPS/QZSS+BDS+Galileo+GLONASS | ||||
| SBAS (WAAS, EGNOS, MSAS, GAGAN) | support | - | support | ||
| RTK Function | - | RTK Rover | RTK Base | RTK Rover and Base | |
| Positioning Accuracy | PVT | 1m CEP | - | 1.5m CEP | |
| RTK | - | 0.01m+1ppm CEP | - | 0.01m+1ppm CEP | |
| Navigation Update Rate | PVT | 1~10Hz | - | 1~10Hz | |
| RTK | - | 1Hz | - | 1~8Hz | |
| RAW | 1Hz | 1~20Hz | |||
| RTK Convergence Time | - | <10s | - | <10s | |
| Time to first fix (AGNSS Off) | Cold starts | 26s | - | 24s | |
| Hot starts | 1s | - | 2s | ||
| Aided starts | 16s | - | 2s | ||
| Time to first fix (EASY on) | 2s | - | |||
| Time to first fix (AGNSS On) | Cold starts | 5s | - | TBD | |
| Hot starts | 5s | - | TBD | ||
| Aided starts | 5s | - | TBD | ||
| Sensitivity | Tracking and navigating | -165dBm | -167dBm | ||
| Re-acquisition | -159dBm | -157dBm | -159dBm | -160dBm | |
| Cold starts | -147dBm | -145dBm | -147dBm | -148dBm | |
| Velocity accuracy | 0.2m/s | - | 0.05m/s | ||
| PPS accuracy | 20ns | - | 30ns | ||
| Dynamic performance | Acceleration (Max): 4g Velocity (Max): 500m/s LC29H(XX) HAT Altitude (Max): 10000m ZED-F9P GPS-RTK HAT Altitude (Max)：50000m | ||||
| Communication interface | LC29H(XX) HAT:UART(9600~3000000bps, 115200bps by default),I2C(Max 400KHz) ZED-F9P GPS-RTK HAT:USB, UART(4800~921600bps, 9600bps by default), I2C(Max 400KHz), SPI(5MHz) | ||||
| Protocol | NMEA 0183 V4.10, RTCM 3.x | NMEA 0183 V4.10，UBX, RTCM 3.3 | |||
| Power supply | 5V | ||||
| Overall Current | <40mA@5V (Continue mode) | ||||
| Operating temperature | -40~85℃ | ||||
What's on board
1. LC29H module
2. RT9166A-28PXL, 5V to 2.8V LDO chip
3. CP2102N, USB to UART chip
4. Raspberry Pi 40PIN GPIO header for connecting with Raspberry Pi
5. UART selection jumper: (A) control the LC29H via USB to UART, (B) control the LC29H via Raspberry Pi, (C) access Raspberry Pi via USB to UART
6. IPEX 1 antenna connector
7. Micro USB interface
8. RT9193-33PB, 5V to 3.3V LDO chip
9. RESET button
10. Status Indicators (PWR, RXD/TXD, PPS)
11. NDC7002N, I2C voltage translator
12. ML1220 Battery holder
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Included in the package
1. 1× OPTIONS LC29H GPS HAT
2. 1× 2x20PIN female header
3. 1× GPS External Antenna (D)
4. 1× IPEX 1 to SMA cable ~17cm
5. 1× Screws pack
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