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The JS-AUP20FG-1 is a low-power, high-performance L1 GNSS antenna module supporting GPS, GLONASS, Galileo, and BDS. It offers high sensitivity, rapid acquisition, and advanced anti-jamming and anti-spoofing filtering. An integrated geomagnetic sensor provides heading and attitude data, making it suitable for UAVs and intelligent robotics.
Product Features
Based on high-performance GNSS chip
Cold start acquisition sensitivity:-148dBm; Tracking sensitivity:-166dBm
Navigation update rate up to 10Hz
Supports BDS, GPS, QZSS, SBAS, GLONASS, Galileo
Supports A-GNSS
Integrated TCXO, LNA, SAW,RTC
Equipped with geomagnetic sensor
Supports standard NMEA0183
Compact size(20.0mmx 20.0mmx 12.20mm ±0.3mm) suitable for space-sensitive applications;
Lightweight <7.8g
Performance Metrics
| Category | Specifications |
| Constellations & Frequencies | GPS/QZSS: L1C/A GLONASS: L1OF SBAS: EGNOS, GAGAN, MSAS and WAAS BDS: B1I, B1C Galileo: E1B/C |
| Sensitivity | Tracking & Navigation: -166 dBm |
| Reacquisition: -160 dBm | |
| Cold Start: -148 dBm | |
| Hot Start: -160 dBm | |
| Time To First Fix | Cold Start: 29 s |
| Hot Start: 1 s | |
| Horizontal Positioning Accuracy² | Automatic: 2.0 m CEP |
| SBAS: 1.5 m CEP | |
| Time Pulse Signal Accuracy | RMS: 30 ns |
| 99%: 60 ns | |
| Velocity Accuracy | 0.05 m/s |
| Operating Limits | Dynamic: ≤ 4 g |
| Altitude: 80000 m | |
| Velocity: 500 m/s | |
| Time Pulse Frequency | 1 Hz |
| Baud Rate | 9600 – 921600 bps (default 38400 bps, configurable) |
| Maximum Data Update Rate | 10 Hz (default 1 Hz, configurable) |
Pin Assignment
| PIN Name | I/O | Description |
| 5V | P | Main Power Supply, 3.0~5.5V, typically 5V |
| RX | I | GNSS Receive Data |
| TX | O | GNSS Transmit Data |
| CL | O | IIC Clock |
| DA | I/O | IIC Data |
| G | - | Ground |
Product Applications
FPV Drones
UAV/Drones
Marine Navigation, Fleet Management
Formation UAVs
Aerial Photography Drones
Inspection UAVs
Educational / Training Drones
Smart Logistics Dispatch
Smart Robots
Unmanned Surface Vessel(USV)
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