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_.webp "JS-ARK28-3")
_.webp "JS-ARK28-3")
_.webp "JS-ARK28-3")
_.webp "JS-ARK28-3")
_.webp "JS-ARK28-3")
_.webp "JS-ARK28-3")
The JS-ARK28-3 is a compact dual-band (L1+L5) high-precision GNSS module featuring a low-power SoC architecture. It delivers high sensitivity, fast acquisition, and advanced anti-multipath and anti-interference performance. Designed for IoT, automotive navigation, and precision terminals, it ensures stable multi-constellation positioning in complex environments.
Product Features
Based on high-performance GNSS SoC chip
Navigation update rate up to 20 Hz
200 tracking channels and dedicated search engines
Low-power design
Intelligent interference detection and suppression
Supports GPS, BDS, GLONASS, Galileo, QZSS,and IRNSS
Supports SBAS
Supports A-GNSS
Indoor/outdoor multipath detection and compensation
Integrated TCXO, LNA, SAW,RTC
Compact dimensions (28.0mm x 28.0mm x8.0mm±0.3mm), light weight (<12.0g)
ROHS compliant
Supports standard NMEA 0183/ RTCM3.X protocols
The module can be equipped with a magnetic sensor
Performance Metrics
| Parameters | Details |
| Supported Constellations & Frequency bands | GPS: L1 L5 BDS: B1I B1C B2I B2B B2A Galileo: E1 E5 GLONASS: G1 QZSS: L1 L5 IRNSS: L5 |
| Sensitivity | Tracking & Navigation: -165 dBm |
| Reacquisition: -159 dBm | |
| Hot Start: -159 dBm | |
| Cold Start: -148 dBm | |
| Time to First Fix | Cold Start: 28 s |
| AGPS: 1.5 s | |
| Hot Start: 1 s | |
| GNSS Positioning Accuracy | Single Point<br>Horizontal: 1.0 m CEP<br>Vertical: 2.0 m CEP |
| RTK<br>Horizontal: 1.0 cm + 1 ppm CEP<br>Vertical: 1.5 cm + 1 ppm CEP | |
| Tracking Channels | 200 |
| Velocity Accuracy | PPS: < 20 ns RMS |
| Velocity Accuracy | 0.1 m/s CEP |
| Operating Limits | Dynamic: ≤ 4 g |
| Altitude: 20000 m | |
| Velocity: 500 m/s | |
| Baud Rate | 115200–2M bps (default 115200 bps) |
| Maximum Data Update Rate | 20 Hz (default 1 Hz) |
Pin Assignment
| No. | Name | I/O | Description |
| 1, A | SCL | I/O | I2C Clock (keep open when unused) |
| 2, B | SDA | I/O | I2C Data (keep open when unused) |
| 3, C | TXD | O | Serial Port 1 Data Output |
| 4, D | RXD | I | Serial Port 1 Data Input |
| 5, E | GND | - | Ground |
| 6, F | VCC | P | Power Supply Voltage |
Product Applications
UAV/Drones
Automotive Navigation and Tracking
Smart Robots .Wearable devices
Intelligent Logistics Dispatch
Automotive Applications
Personal & workforce Safety loT
AVL and Location-Based Services
Smart handhelds
Protocols
| Protocol | Type |
| NMEA 0183 | Input/Output, ASCII |
| RTCM3.X | Input/Output |
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