The UK43 is a high-performance concurrent GNSS receiver capable of tracking multiple systems simultaneously. With its advanced multi-band RF front-end, it supports GPS, GLONASS, Galileo, BDS, plus QZSS and SBAS. By processing all visible satellites with correction data, it delivers precise RTK navigation. Powered by the UK43 engine, it ensures exceptional sensitivity, fast acquisition, and strong interference suppression, providing reliable positioning and navigation even in challenging environments.
Product Features
Build on high performance GNSS U9D
192 search channels and 60 trace channels
Cold start acquisition sensitivity of -148dBm and -167dBm tracking sensitivity
All GNSS up to 7Hz update rate
Supports GPS,BDS, GLONASS, Galileo and QZSS,SBAS
Integrated TCXO, LNA, SAW, RTC
Configurable peripheral IO pins
Integrated high gain antenna
Low power consumption and it has intelligent power control mechanism
Single supply with wide voltage range
Compact size (Bottom diameter47.2mm，Head diameter42.3mm，Height36.8mm ) ±0.5mm
Performance
| Parameter | Specification | ||
| Receiver type | GPS/QZSS/SBAS L1C/A L2C Galileo E1 E5b GLONASS L1OF L2OF BDS B1l B2l | ||
| Sensitivity | Tracking | -167 dBm | |
| Reacquisition | -148 dBm | ||
| Time-To-First-Fix | Cold Start | 25 s | |
| Warm Start | 20 s | ||
| Hot Start | 2 s | ||
| Horizontal Position accuracy | PVT | 1.5 m CEP | |
| SBAS² | 1.0m CEP | ||
| RTK | 2 cm + 1 ppm ( Horizontal ) | ||
| Accuracy of time pulse signal | RMS | 30 ns | |
| Velocity accuracy | GNSS | 0.05 m/s | |
| Operational limits | Dynamics | ≤ 4 g | |
| Altitude | 80000 m | ||
| Velocity | 500 m/s | ||
| Baud Rate | 9600 - 921600 bps（Default 38400 bps） | ||
| Max navigation update rate | RTK ( GPS ) | 20 Hz | |
| RTK ( GNSS ) | 7 Hz | ||
Pin Parameters
| No. | Name | I/O | Description |
| 1 | GND | G | Ground |
| 2 | TX2 | O | UART 2 output RTCM3 data |
| 3 | RX2/PPS | I/O | Serial Port(UART 2: for 1PPS output ＜Default>/RTCM3 input) |
| 4 | SDA | I/O | I2C Data（keep open if not used） |
| 5 | SCL | I/O | I2C Clock（keep open if not used） |
| 6 | TX1 | O | UART output |
| 7 | RX1 | I | UART input |
| 8 | VCC | P | Main supply |
Product Application
Hand-held terminal
Aided driving
Wisdom path field
Intelligent safety testing
Direct detection
Vehicle management
UAV
Agricultural automation
Intelligent city
Intelligent robot
Protocols
| Protocol | Type |
| NMEA 4.11 (default), 4.10, 4.0, 2.3, 2.1 | Input/output |
| RTCM 3.3 | Input/output |
| UBX | Input/output, UBX proprietary |
