JS-ARK28-3
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JS-ARK28-3
High Precision RTK Modules
Jumpstar JS-ARK28-3 Dual Band (L1+L5) GNSS Positioning Module - Centimeter-Level Precision, Low Power & Compact Size
Centimeter-Level RTK Accuracy
Delivers horizontal 1.0cm+1ppm and vertical 1.5cm+1ppm precision for high-demand industrial scenarios.
Dual Band (L1+L5) & Multi-Constellation
Simultaneously tracks GPS, BDS, GLONASS, Galileo, QZSS, IRNSS and SBAS for stable signal in complex environments.
Low-Power & High Sensitivity
-165dBm tracking sensitivity and intelligent power management, ideal for battery-powered IoT and wearable devices.
Compact & Lightweight
28.0×28.0×8.0mm size and <12.0g weight, perfect for space-constrained terminals.
All-In-One Integration
Built-in TCXO, LNA, SAW filter and RTC, simplifying system integration and PCB design.
Dual Band (L1+L5) GNSS Positioning Module
JS-ARK28-3 is a compact, lightweight, and cost-effective dual-band (L1+L5) GNSS positioning module, engineered with a high-performance, low-power architecture to optimize multi-band signal tracking. Its advanced RF front-end is equipped with up to eight anti-single-tone filters for L1/L5 bands, effectively enhancing anti-multipath and anti-interference capabilities, which ensures improved positioning accuracy and Time to First Fix (TTFF) even in challenging conditions such as urban canyons and indoor-outdoor transitions.
Built on an advanced SoC, the module delivers ultra-high sensitivity and fast signal acquisition. Innovative dynamic power management technology enables low-power continuous operation, making it suitable for a wide range of applications including IoT, automotive navigation, and high-precision terminals.
It supports multi-constellation solutions and maintains stable centimeter-level positioning performance in various complex environments.
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Key Features & Benefits
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200 Tracking Channels Equipped with dedicated search engines, ensuring fast and stable signal acquisition and tracking.
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20Hz Max Data Update Rate Provides real-time positioning data (default 1Hz, 20Hz requires specific firmware support) for dynamic scenarios.
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Intelligent Anti-Interference Features interference detection and suppression, along with anti-multipath compensation, adapting to harsh electromagnetic environments.
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Versatile Positioning Support Compatible with A-GNSS for faster TTFF (1.5s for AGPS), single-point and RTK positioning modes.
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Optional Magnetic Sensor Supports IST8310 (default), QMC5883L and VCM5883 magnetometers for precise heading and orientation.
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Industrial-Grade Reliability Operates in -40℃ to 85℃ temperature range, withstanding harsh working conditions.
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Technical Specifications
GNSS Performance
| Receiver Type | Dual-band (L1+L5) multi-constellation high-precision GNSS receiver |
| Constellations & Frequency Bands | GPS L1/L5; BDS B1I/B1C/B2I/B2B/B2A; Galileo E1/E5; GLONASS G1; QZSS L1/L5; IRNSS L5; SBAS |
| Tracking Channels | 200 |
| Sensitivity | Tracking & Nav: -165dBm; Reacq: -159dBm; Hot Start: -159dBm; Cold Start: -148dBm |
| Time to First Fix (TTFF) | Cold Start: 28s; AGPS: 1.5s; Hot Start: 1s (≥-130dBm, ≥12 satellites) |
| Positioning Accuracy (CEP) | Single Point: H 1.0m, V 2.0m; RTK: H 1.0cm+1ppm, V 1.5cm+1ppm |
| Time Accuracy | PPS: <20ns RMS |
| Velocity Accuracy | 0.1m/s CEP (50% @30m/s dynamic) |
| Operational Limits | Dynamics ≤4g; Altitude ≤20000m; Velocity ≤500m/s |
| Max Data Update Rate | 20Hz (default 1Hz; 20Hz requires specific firmware) |
| Supported Protocols | NMEA 0183 (I/O, ASCII); RTCM3.X (I/O) |
Interfaces & Power
| Baud Rate | 115200-2M bps (default: 115200bps; 2M bps for debug log) |
| Power Supply Voltage | 3.3V-5.5V (Typical: 5.0V) |
| Operating Current | 32mA-42mA @3.3V (Typical: 37mA @3.3V) |
| Backup Battery | Voltage: 1.8V-3.6V (Typical: 3.3V); Current: 14uA @3.3V |
| Operating/Storage Temperature | Operating: -40℃ to 85℃ (without Farah cap); Storage: -40℃ to 85℃ |
| Farah Capacitor Temperature | -25℃ to 60℃ (hot start unavailable outside this range) |
| Humidity | 95% |
| Mechanical Dimensions | 28.0×28.0×8.0mm ±0.3mm; Weight <12.0g |
| Antenna Type | Passive integrated (L5 25×25×2mm stacked on L1 18×18×2mm) |
| Magnetometer Options | Default: IST8310 (0x0F); Optional: QMC5883L (0x0D), VCM5883 (0x0C) |
| Compliance | RoHS compliant |
Typical Applications
UAVs & Drones
Aerial surveying, autonomous flight and precise positioning
Automotive Navigation & Tracking
Vehicle positioning, navigation and fleet management
Smart Robots
Autonomous navigation and precise movement control
Wearable Devices
Personal positioning and safety monitoring
Intelligent Logistics Dispatch
Asset tracking and efficient dispatch management
Personal & Workforce Safety IoT
Real-time location monitoring for personnel safety
AVL & Location-Based Services
Automatic vehicle location and location-based applications
Smart Handhelds
High-precision positioning for mobile data collection
Resources & Downloads
JS-ARK28-3 Datasheet
Complete specifications, electrical parameters, and mechanical dimensions.
Protocol Documentation
NMEA 0183, RTCM3.X protocol definitions.
User Manual
Quick start guide, RTK configuration, and integration tips.
3D CAD Model
STEP, IGES and STL formats for mechanical integration (28×28×8mm).
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