JS-C8A
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JS-C8A
Dead Reckoning (DR) Modules
Jumpstar JS-C8A Multi-Band Multi-Mode GNSS + INS Integrated Navigation Module - Centimeter-Level RTK, Miniaturized, Anti-Interference High-Precision Positioning Solution
Full-Constellation Multi-Band
Supports BDS-2/3, GPS, GLONASS, Galileo, SBAS, QZSS full-system multi-frequency signal tracking.
Built-In Inertial Navigation
Onboard IMU, GNSS/INS combined navigation, signal loss still maintains high precision.
Centimeter-Level RTK
Horizontal accuracy up to ±(8 + 10⁻⁶×D)mm, perfect for high-precision scenarios.
Miniaturized Package
22mm×17mm×2.8mm compact size, suitable for space-constrained products.
Strong Anti-Interference
Suppresses narrowband & single-tone interference in GNSS band, stable in complex environments.
Multi-Band Multi-Mode GNSS + INS Integrated Navigation Module
JS-C8A is a miniaturized, high-precision full-system multi-frequency positioning module with built-in inertial navigation. It supports signal tracking of BDS-2/3, GPS, GLONASS, Galileo, SBAS, QZSS and other satellite navigation systems, and integrates a high-performance inertial measurement unit.
Adopting GNSS/INS combined navigation algorithm, it can still maintain centimeter/meter-level accuracy when the satellite signal is lost. With antenna detection, multi-interface output and anti-interference suppression capability, it is widely used in intelligent driving, drones, intelligent robots, automotive electronics and emergency rescue fields.
Industrial-grade reliability and compact size make it ideal for high-precision positioning in space-constrained applications.
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Key Features & Benefits
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High-Precision Positioning Centimeter-level RTK + meter-level single-point positioning, meeting high-precision needs.
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GNSS/INS Combined Navigation Built-in gyroscope & accelerometer, 3s signal loss keeps cm-level, 10s keeps m-level.
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Full-System Multi-Band Compatible with all global satellite navigation systems, stable positioning worldwide.
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Strong Anti-Interference Suppresses narrowband/single-tone interference in GNSS signal band.
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Antenna Detection & Rich Interfaces Antenna open/short detection, multi-channel UART + I2C + SPI + PPS.
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Standard Protocol Support NMEA 0183, RTCM2.X/3.X, CMR, custom binary protocol.
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Industrial-Grade Reliability -40℃~+85℃ operating temperature, adapting to harsh environments.
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Technical Specifications
GNSS Performance
| Supported Constellations & Bands | GPS: L1C/A,L2P,L2C; BDS-2: B1I,B2I; BDS-3: B1C,B2b; GLONASS: G1,G2; Galileo: E1,E5b; QZSS: L1C/A,L2C; SBAS: L1C/A |
| Sensitivity | Tracking & Navigation: -155dBm; Acquisition: -138dBm |
| Time to First Fix | Cold Start: <20s; Warm Start: <10s; RTK Init: <5s; Reacq: <1s |
| Positioning Accuracy | Single-point: H≤1.5m,V≤3m (1σ,PDOP≤4); RTK: H±(8+10⁻⁶×D)mm, V±(15+10⁻⁶×D)mm |
| Measurement Accuracy | Pseudorange: ≤10cm; Carrier phase: ≤1mm |
| Speed & Timing Accuracy | Speed: ≤0.02m/s; Timing: 20ns |
| Inertial Navigation Parameters | Gyro: Range 250°/s, Zero dev 0.5°/s; Acc: Range 4g, Zero dev 20mg; 3s loss: cm-level; 10s loss: m-level |
| Data Rate | Measurement&Positioning: 100Hz(opt); RTK Positioning: 20Hz(opt) |
| Supported Protocols | NMEA 0183; Custom CNB binary; CMR; RTCM2.X; RTCM3.X(MSM3~MSM7) |
Interfaces & Power
| Antenna | 50Ω impedance; Power: 3.3~5V; Gain: 20~35dB |
| Power Supply | VCC: 3.3V±5% DC; VCC_RF: 3.3~5.5V; V_BCKP: 1.8~3.6V |
| Power Consumption | 0.8W@3.3V (anti-interference off); 0.9W@3.3V (anti-interference on) |
| Operating Temperature | -40℃ ~ +85℃ |
| Storage Temperature | -55℃ ~ +95℃ |
| Humidity | 95% |
| Mechanical Dimensions | 22.0mm × 17.0mm × 2.8mm ±0.3mm |
| Main Interfaces | 3×UART, I2C, SPI, PPS, RST, EVENT, Antenna Detection, Power |
| Compliance | RoHS compliant |
Typical Applications
Intelligent Driving & Automotive
Autonomous driving, ADAS & automotive electronics
UAV & Drone Navigation
High-precision navigation for drones and UAVs
Intelligent Robots
Autonomous mobile robots & unmanned equipment
Maritime Navigation
Vessel positioning & fleet management
Personal Protection & Rescue
Emergency rescue & personal safety devices
Car Navigation & Tracking
Vehicle navigation, tracking & telematics
High-Precision Terminals
Surveying, mapping & high-precision positioning devices
More Applications
Custom integration for other high-precision GNSS+INS systems
Resources & Downloads
JS-C8A Datasheet
Complete specifications, INS parameters, electrical and mechanical details
Protocol Documentation
NMEA 0183, RTCM2.X/3.X, CMR, custom binary protocol definitions
User Manual
Quick start guide, INS configuration, and integration tips
3D CAD Model
STEP, IGES and STL formats for mechanical integration (22×17×2.8mm)
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