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_.webp "JS-SK43-AH")
_.webp "JS-SK43-AH")
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_.webp "JS-SK43-AH")
The JS-SK43-AH is a compact, full-system, multi-frequency High-Precision RTK Positioning Module. Utilizing a flexible GNSS+ technology , it offers 789 hardware channels for simultaneous, multi-constellation, four-band tracking. The module achieves centimeter-level RTK accuracy at up to 20Hz , even in challenging environments , thanks to its industry-leading ultra-low power consumption and advanced features like AIM+ (anti-jamming) , LOCK+ (anti-vibration) , and APME+ (multipath mitigation). Its small size makes it an ideal choice for UAVs, robotics, autonomous systems, and precision agriculture.
Product Features
789 hardware channels enabling simultaneous operations
AIM+ features advanced capabilities including interference and spoofing detection with automatic mitigation
LOCK+ delivers robust tracking performance with exceptional resistance to mechanical shock and vibration
IONO+ incorporates advanced protection against ionospheric interference
APME+ multipath mitigation separates direct signals from those reflected off nearby structures
Complete raw measurement data
RTK positioning data update rate up to 20Hz
Compact size with advanced functionality
Full-field-of-view satellite tracking: Multi-constellation, quad-band GNSS receiver
Compact dimensions (48.0mm x 43.2mm x 37.0mm ±0.5mm) for space-constrained applications, <24g
Best-in-class RTK centimeter-level positioning
Industry-leading ultra-low power consumption
Performance
| Parameters | Description |
| Receivable satellites | BDS-2: B1I, B1C, B2a, B2I, B2b, B3 GPS: L1C/A, L1C, L1P, L2P(Y), L2C, L5 GLONASS: L1 C/A, L2C/A, L2P, L3 CDMA Galileo: E1, E5a, E5b, E6 QZSS: L1C/A, L1C/B, L2C, L5, L6 |
| Time To First Fix | Cold Start: 35 s |
| Hot Start: 10 s | |
| Reacquisition: 1 s | |
| RTK Initialization: 7 s | |
| Signal Tracking | Signal Tracking Sensitivity: −150 dBm (20 dB-Hz) |
| Signal Acquisition Sensitivity: −140 dBm (30 dB-Hz) | |
| Time Accuracy | PPS: 1.4 ns |
| Event: < 3 ns | |
| Latency | < 10 ms |
| Velocity Accuracy | 3 cm/s |
| Baud Rate | 4800- 4M bps ( default 115200 bps ) |
| Maximum Data Update Rate | 20 Hz |
Pin Parameters
| No. | Name | I/O | Description |
| 1 | GND | G | Ground |
| 2 | TX2 | O | UART2 Output RTCM3 Data |
| 3 | PPS/RX2 | O/I | UART2: 1PPS Output (Default) / RTCM3 Input |
| 4 | SDA | I/O | I2C Data (Keep open when not in use) |
| 5 | SCL | I/O | I2C Clock (Keep open when not in use) |
| 6 | TX1 | O | UART1 Output |
| 7 | RX1 | I | UART1 Data Input |
| 8 | VCC | I | Supply Voltage |
Protocols
Unmanned Aerial Vehicles
Surveying and Mapping
Automotive Applications
Intelligent Robotics
Precision Agriculture
Smart Ports
Maritime Navigation
Power Grids and Electricity
Logistics and Security
Smart Transportation
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