JS-BCK43-2
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JS-BCK43-2
RTK Positioning Boards
Jumpstar JS-BCK43-2 Multi-Constellation Multi-Frequency RTK GNSS Module – Built-in IMU Inertial Navigation, Millimeter-Level Positioning, Miniature Embedded Solution
Built-in IMU & Integrated Navigation
Inertial auxiliary positioning, maintains continuity when satellite signals are weak or lost.
Full-Constellation Multi-Band Support
Compatible with BDS-2/3, GPS, GLONASS, Galileo, QZSS full-frequency signals.
RTK Millimeter-Level Accuracy
Horizontal 8mm+1ppm, vertical 15mm+1ppm high-precision positioning.
Ultra-Strong Anti-Interference
Suppresses narrowband/single-tone interference up to 60dB signal-to-interference ratio.
Ultra-Compact & Lightweight
39.0×30.0×6.04mm, weight <25g, best-in-class SWaP design.
High-Speed Update Rate
Max 50Hz positioning, 100Hz IMU output for high-dynamic scenarios.
Rich Interfaces
Dual UART + Type-C USB + PPS + EVENT, flexible for embedded integration.
Industrial-Grade Reliability
-40℃~+85℃ wide temperature, suitable for harsh outdoor environments.
Jumpstar JS-BCK43-2
Multi-Constellation Multi-Frequency RTK GNSS Module
The JS-BCK43-2 is a high-precision multi-frequency multi-constellation GNSS positioning module with a built-in high-performance inertial navigation unit (IMU). It adopts an efficient integrated navigation algorithm to provide continuous and robust auxiliary positioning, ensuring positioning stability even in complex scenarios with weak or transient satellite signal loss.
It fully supports signal tracking of all mainstream global satellite navigation systems, and is equipped with advanced anti-interference technology to resist complex electromagnetic interference. With ultra-small size, light weight and excellent performance, it is the ideal core module for high-precision positioning applications such as surveying and mapping, outdoor robots, drones and precision engineering.
Built-in IMU fusion navigation, RTK millimeter-level accuracy, 60dB anti-interference, and industrial-grade reliability make it perfect for space-constrained embedded solutions.
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Key Features & Benefits
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Inertial Navigation Fusion Positioning Built-in IMU sensor supports combined navigation algorithm, providing continuous positioning when satellite signals are blocked or lost.
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Full-System Multi-Band Compatibility Covers BDS-2/3, GPS, GLONASS, Galileo, QZSS, NavIC, SBAS and L-Band full-frequency satellite signals.
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Ultra-High Precision RTK Performance RTK initialization time 5s (baseline <10km); horizontal accuracy 8mm+1ppm, vertical accuracy 15mm+1ppm, millimeter-level measurement.
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Professional Anti-Interference Capability Suppresses narrowband and single-tone radio interference in GNSS band, with interference-to-signal ratio up to 60dB for stable operation in complex electromagnetic environments.
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Miniature High-Density Design Compact size 39.00×30.00×6.04mm, weight <25g, best-in-class SWaP (size, weight, power) for space-constrained devices.
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High-Speed Data Output Default 10Hz update rate; max single-point/RTK positioning 50Hz, IMU 100Hz for real-time precise control.
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Rich Peripheral Interfaces Dual UART, Type-C USB, PPS second pulse, EVENT external trigger, 3.3V power output, easy to integrate with host systems.
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Technical Specifications
GNSS Performance
| Product Type | Multi-Constellation Multi-Frequency RTK GNSS Module (Built-in IMU) |
| Supported Satellite Signals | BDS-2/3: B1I/B1C/B2a/B2b/B3I; GPS: L1C/A/L2P/L5/L1C; GLONASS: G1/G2/G3; Galileo: E1/E5a/E5b/E6c; QZSS/NavIC/SBAS/L-Band full bands |
| Sensitivity | Tracking: -160dBm; Acquisition: -145dBm |
| Time to First Fix | Cold Start:20s; Warm Start:10s; Reacquisition:1s |
| Positioning Accuracy | SPP: Horizontal 1.5m, Vertical 3m; RTK: Horizontal 8mm+1ppm, Vertical 15mm+1ppm; PPP: Horizontal 0.1m, Vertical 0.2m |
| IMU Parameters | Gyro: ±125°/s; Accelerometer: ±2g; Zero-bias & stability meet industrial standards |
| Heading Accuracy | 0.2°@1m baseline |
| Timing & Speed | PPS(RMS):20ns; Velocity:0.02m/s; Dead Reckoning:3%d |
| Update Rate | Positioning/RTK: Max 50Hz; IMU: Max 100Hz; Default 10Hz |
| Anti-Interference | Narrowband/single-tone interference suppression up to 60dB |
| Supported Protocols | NMEA 0183, RTCM 2.X/3.X, CMR, Custom Binary |
Electrical & Mechanical
| Operating Voltage | 3.5~12.0V DC (Typical 5V) |
| Operating Current | 168~190mA @5V; Power Consumption: 0.87~0.97W |
| Antenna Interface | RF1 (Single Antenna), 50Ω, 3.0~5.5V, Gain 20~35dB |
| Dimensions | 39.00×30.00×6.04mm (Tolerance ±0.2mm) |
| Weight | <25g |
| Operating Temperature | -40℃ ~ +85℃ |
| Storage Temperature | -40℃ ~ +85℃ |
| Humidity | 95%RH Non-condensing |
| Interfaces | 2×UART, Type-C USB, PPS, EVENT, RESET, 3.3V Output |
| Certification | RoHS Compliant |
Typical Applications
Outdoor Robot Control & Autonomous Navigation
High-precision positioning for outdoor robots, AGVs and autonomous navigation systems
Precision Engineering Operations & Construction
mm-level positioning for construction machinery, pile driving and civil engineering
Intelligent Logistics Scheduling & Management
Asset tracking, warehouse automation and supply chain visibility
Intelligent Lawn Mowers & Agricultural Machinery
Automated guidance for robotic mowers, precision farming equipment
Geodetic Surveying & Mapping
Professional land surveying, GIS data collection and geodetic measurement
Unmanned Aerial Vehicles (UAVs)
Aerial surveying, autonomous flight and precise positioning for drones
Environmental & Geological Monitoring
Landslide, subsidence and structural health monitoring with mm-level precision
Vehicle-Mounted Positioning Equipment
High-precision navigation for vehicles, fleet management and telematics
Resources & Downloads
JS-BCK43-2 Datasheet
Complete specifications, pinout, electrical and mechanical details.
Mechanical Drawing
2D/3D mechanical dimensions and pad layout (39.0×30.0×6.04mm).
User Manual
Quick start guide, integration tips, and configuration protocols.
3D CAD Model
STEP, IGES and STL formats for mechanical integration (39.0×30.0×6.04mm).
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