JS-RK40
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JS-RK40
High Precision RTK Modules
Jumpstar JS-RK40 High-Precision GNSS Helical Antenna Module - Dual-Band L1/L5, Centimeter-Level RTK, Rover & Base Station Modes
Centimeter-Level RTK Accuracy
Delivers horizontal 1.0cm+1ppm and vertical 1.5cm+1ppm CEP precision for high-precision positioning.
Dual-Band L1/L5 & Multi-Constellation
Tracks GPS, BDS, GLONASS, Galileo, QZSS, IRNSS and SBAS for stable signal in complex environments.
Integrated Helical Antenna
Built-in high-gain active helical antenna, no external antenna required for easy integration.
Dual Working Modes
Supports both Rover and Base Station modes to meet flexible RTK deployment needs.
Ultra-Light & Compact
Φ39.80mm×32.00mm size and <10.20g weight, ideal for UAV and space-limited devices.
Jumpstar JS-RK40
High-Precision GNSS Helical Antenna Module
The JS-RK40 is a dual-band (L1, L5) GNSS high-precision positioning module. It adopts a high-performance, low-power architecture, enabling optimized multi-band and multi-mode signal tracking. It also features an advanced anti-multipath and anti-jamming RF front-end, including up to 8 single-tone interference rejection filters for the L1 and L5 bands, significantly improving positioning accuracy in complex scenarios and TTFF performance.
Based on advanced SoC chip design, it achieves ultra-high sensitivity and fast acquisition. Innovative dynamic power management technology ensures low power consumption during continuous positioning mode. This module is a new product launched for UAV terminal application scenarios to meet their high-precision positioning application requirements.
It supports multi-constellation joint calculation, maintaining centimeter-level positioning stability even in extreme environments such as urban canyons and indoor-outdoor transitions. Integrated helical antenna, cm-level RTK, and dual working modes make JS-RK40 an ideal choice for space-constrained high-precision applications.
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Key Features & Benefits
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High-Performance GNSS SOC Based on high-performance GNSS SOC chip, delivering ultra-high sensitivity and fast acquisition.
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200 Tracking Channels 200 tracking channels and dedicated search engine for stable satellite tracking.
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10Hz High-Speed Update Navigation update rate up to 10Hz (default 1Hz) for real-time dynamic positioning.
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Intelligent Anti-Interference Smart interference detection and suppression; indoor and outdoor multipath detection and compensation.
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All-In-One Integration Integrated TCXO, LNA, SAW, RTC and geomagnetic sensor, simplifying system design.
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Wide Protocol Compatibility Supports standard NMEA 0183 and RTCM3.X for seamless system docking.
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Industrial-Grade Reliability -40℃ to 70℃ operating temperature, adapting to harsh working conditions.
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Technical Specifications
GNSS Performance
| Receiver Type | Dual-band (L1/L5) high-precision GNSS helical antenna module |
| Supported Constellations & 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: -165dBm; Reacquisition: -159dBm; Hot Start: -159dBm; Cold Start: -148dBm |
| Time to First Fix | Cold Start:28s; AGPS:1.5s; Hot Start:1s (all satellites ≥-130dBm) |
| Positioning Accuracy (CEP 50%) | Single Point: Horizontal 1.0m, Vertical 2.0m; RTK: Horizontal 1.0cm+1ppm, Vertical 1.5cm+1ppm |
| Time Accuracy | PPS: <20ns RMS |
| Velocity Accuracy | 0.1m/s CEP (50%@30m/s dynamic operation) |
| Operating Limits | Dynamics ≤4g; Altitude 20000m; Velocity 500m/s |
| Baud Rate | 115200-921600bps (Default:115200bps) |
| Max Update Rate | 10Hz (Default:1Hz) |
| Supported Protocols | NMEA 0183 (I/O, ASCII); RTCM3.X (I/O) |
| Working Modes | Rover mode & Base Station mode |
Electrical & Mechanical
| Antenna Type | Active helical antenna (Φ35.00mm, Height 25.00mm) |
| Power Supply Voltage | 3.3V-5.5V (Typical:5.0V) |
| Operating Current | 45mA-65mA@5.0V (Typical:58mA@5.0V) |
| Backup Power | Voltage:1.8V-3.6V; Current:14uA@3.3V |
| Operating Temperature | -40℃ to 70℃ (without Farad capacitor) |
| Storage Temperature | -40℃ to 70℃ |
| Farad Capacitor Temperature | -25℃ to 60℃ (hot start unavailable outside this range) |
| Humidity | 95% |
| Mechanical Dimensions | Bottom:Φ39.80mm; Top:Φ35.00mm; Height:32.00mm |
| Weight | <10.20g |
| Geomagnetic Sensor Options | Default:IST8310(0x0F); Optional:VCM5883(0x0C), QMC5883L(0x0D) |
| Interfaces | UART1 (TX1/RX1), I2C (SDA/SCL), PPS, VCC, GND |
| Compliance | RoHS compliant |
Typical Applications
UAV/Drones
Autonomous flight, aerial surveying and mapping
Robotics
Autonomous navigation and precise movement control
Wearable Devices
Portable high-precision positioning terminals
Smart Logistics Dispatching
Asset tracking and logistics management
Car Navigation and Tracking
Vehicle positioning and fleet management
Power Grid & Electricity
Power facility inspection and positioning
Precision Agriculture
Agricultural machinery auto-steering and precision operation
Logistics Security
Cargo tracking and security monitoring
Handheld Terminals
Mobile surveying and positioning devices
Smart Transportation
Intelligent traffic monitoring and management
Resources & Downloads
JS-RK40 Datasheet
Complete specifications, pinout, electrical and mechanical details.
Mechanical Drawing
2D/3D mechanical dimensions and product layout (Φ39.80×32.00mm).
User Manual
Quick start guide, integration tips, and configuration protocols.
3D CAD Model
STEP, IGES and STL formats for mechanical integration (Φ39.80×32.00mm).
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