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_.webp "JS-UK39-F")
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_.webp "JS-UK39-F")
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JS-UK39-F is a high-precision GNSS RTK board featuring a multi-band RF front-end for concurrent tracking of GPS, BDS, GLONASS, Galileo, and QZSS. With RTK correction support, it processes all visible satellites to deliver accurate positioning. Powered by a high-performance positioning engine, it offers high sensitivity, fast acquisition, and robust interference suppression for reliable operation in challenging signal 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
Low power consumption and it has intelligent power control mechanism
Single supply with wide voltage range
Compact size(25.0*39.4*11.6mm±0.3mm) suitable for space-sensitive application
Performance
| Parameter | Specification |
| Receiver type | GPS: L1C/A L2C BDS: B1I B2I QZSS: L1C/A L1S L2C GLONASS: L1OF L2OF GALILEO: E1B/C E5b SBAS: L1C/A |
| Sensitivity | Tracking & Navigation: -167dBm |
| Reacquisition: -160dBm | |
| Hot starts: -157dBm | |
| Cold starts: -148dBm | |
| Horizontal Position accuracy | PVT : 1.5m CEP |
| SBAS : 1.0m CEP | |
| RTK : 0.02m +1ppm CEP | |
| Velocity accuracy | 0.05 m/s |
| Accuracy of time pulse signal | RMS: 30 ns |
| 99%: 60 ns | |
| Operational limits | Dynamics: ≤ 4g |
| Altitude: 80000 m | |
| Velocity: 500 m/s | |
| Baud Rate | 9600–921600bps (Default 38400 bps) |
Pin Parameters
| No. | Name | I/O | Description |
| 1 | GND | G | Ground |
| 2 | TX2 | O | UART 2 output RTCM3 data |
| 3 | RX2 | I | Serial Port (dedicated for RTCM3 corrections and NMEA) |
| 4 | VCC | P | Main Supply |
| 5 | GND | G | Ground |
| 6 | TX1 | O | GPS TX Test |
| 7 | RX1 | I | GPS RX Test |
| 8 | VCC | P | Main Supply |
Product Application
UAV
Measurement of surveying and mapping
Automotive application
Personnel protective
Precision agriculture
Driving test
AVL and Location-Based Services
ldeal for PDA
Marine Navigation, Fleet Management
Car navigation and tracking
Handheld GPS receiver application
Geographic Surveying
Intelligent logistics scheduling
Intelligent robot
Protocols
| Protocol | Type |
| NMEA 0183 V4.11/ V4.0/V4.1 | Input/output, ASCII |
| RTCM 3.3 | Input/output, binary |
| UBX | Input/output, binary, u-blox proprietary |
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