JS-ATP38-M
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JS-ATP38-M
Standard Precision Modules
Jumpstar JS-ATP38-M Multi-Mode Dual-Band (L1+L5) GNSS Positioning Module - Ultra-Thin Integrated, High Sensitivity, Industrial-Grade Positioning Solution
Dual-Band L1+L5 & Full Constellation
Simultaneously supports GPS, BDS, GLONASS, Galileo, QZSS and SBAS for global stable signal reception.
Ultra-High Sensitivity
Tracking sensitivity up to -165dBm, reliable positioning in weak-signal and complex environments.
Ultra-Thin Compact Size
38.0×11.5mm ultra-thin profile, ideal for space-constrained embedded devices.
135 High-Speed Channels
Standard 135 channels / wearable 72 channels, flexible for different application scenarios.
Meter-Level High Precision
Horizontal accuracy 1.0m (L1+L5) / 2.5m (L1), meeting professional positioning demands.
Jumpstar JS-ATP38-M
Multi-Mode Dual-Band (L1+L5) GNSS Positioning Module
The JS-ATP38-M is a low-power, cost-effective multi-mode dual-band (L1+L5) GNSS positioning module built on a high-performance SOC positioning engine. It adopts professional interference suppression and indoor/outdoor multipath detection & compensation technology to ensure stable positioning in challenging signal environments.
Integrated with TCXO, LNA, SAW, RTC and dual-band passive antenna, it supports AGPS, 1PPS high-precision timing and dual communication interfaces (UART+I2C). With ultra-thin compact design and optional RS232 version, it is widely used in automotive electronics, maritime navigation, intelligent logistics, robots, wearable devices and emergency rescue scenarios.
Dual-band L1+L5, 135 channels, 1.0m horizontal accuracy, and industrial-grade reliability make JS-ATP38-M an ideal embedded positioning solution for space-constrained and harsh environments.
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Key Features & Benefits
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High-Performance GNSS SOC Professional dual-band positioning platform delivers stable and efficient operation.
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Dual-Mode Channel Configuration 135 channels (standard) / 72 channels (wearable) for fast satellite acquisition.
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10Hz High-Speed Update Max navigation update rate up to 10Hz (default 1Hz) for real-time dynamic positioning.
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AGPS Fast Positioning Cold start in 24s, hot start in 1s, greatly improving positioning efficiency.
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Ultra-Thin Integrated Design & 1PPS 38.0×11.5mm ultra-thin size, built-in dual-band antenna; time pulse accuracy 10ns.
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Rich Interface Compatibility UART+I2C standard, optional RS232 to meet diverse connection demands.
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Industrial-Grade Reliability -40℃ to 85℃ operating temperature, suitable for harsh outdoor environments.
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Technical Specifications
GNSS Performance
| Receiver Type | Multi-mode dual-band (L1+L5) GNSS positioning module |
| Supported Constellations & Bands | GPS:L1CA/L5; BDS:B1I/B2a; GLONASS:L1OF; Galileo:E1B/E1C/E5a; QZSS:L1CA/L1SAIF/L5; SBAS(WAAS/EGNOS/MSAS/GAGAN) |
| Tracking Channels | Standard:135 channels(L1:75, L5:60); Wearable:72 channels(L1:42, L5:30) |
| Sensitivity | Tracking & Navigation:-165dBm; Cold Start Acquisition:-148dBm |
| Time to First Fix | Cold Start:24s; Hot Start:1s (all satellites ≥-130dBm) |
| Positioning Accuracy(CEP 50%) | Horizontal:1.0m(L1+L5)/2.5m(L1); Vertical:2.25m (open sky, 24h static, >6SVs) |
| Time Accuracy | 1PPS:10ns |
| Velocity Accuracy | 0.05m/s (50%@30m/s dynamic operation) |
| Operational Limits | Acceleration≤4g; Altitude≤10000m; Velocity≤100m/s |
| Baud Rate | 4800-921600bps (Default:115200bps) |
| Max Update Rate | 10Hz (Default:1Hz) |
| Supported Protocols | NMEA 0183 V3.01/V4.10 (Input/Output, ASCII) |
Electrical & Mechanical
| Antenna Type | Built-in dual-band passive antenna: L5(38.0×38.0×6.0mm) stacked on L1(28.0×28.0×4.0mm) |
| Interface Versions | TTL(UART+I2C):JS-ATP38-M; RS232:JS-ATP38R-M |
| Power Supply Voltage | VCC:3.0V~5.5V (Typical:5.0V) |
| Operating Current | Acquisition:37~53mA@5.0V; Tracking:42~58mA@5.0V; Backup:11uA@3.3V |
| Digital I/O Voltage | 3.0V~3.3V |
| Operating Temperature | -40℃ ~ +85℃ (without farad capacitor) |
| Storage Temperature | -40℃ ~ +85℃ |
| Farad Capacitor Temperature | -25℃ ~ +60℃ (hot start unavailable outside this range) |
| Humidity | 95% |
| Mechanical Dimensions | 38.0mm × 11.5mm ±0.3mm |
| Pin Interfaces | SCL, RXD, TXD, GND, VCC, SDA |
| Compliance | RoHS compliant |
Typical Applications
Automotive Applications
Car navigation and vehicle-mounted positioning
Maritime Navigation & Fleet Management
Ship positioning and maritime dispatch
Intelligent Logistics Dispatching
Asset tracking and logistics management
Ground Vehicle Tracking & Urban Intelligent Traffic
Commercial vehicle monitoring
Intelligent Robots
Autonomous navigation and movement control
Wearable Devices
Portable positioning and safety tracking products
Personal Travel & Wilderness Exploration
Outdoor positioning and navigation
Emergency Rescue
Disaster relief real-time positioning and navigation
Resources & Downloads
JS-ATP38-M Datasheet
Complete specifications, pinout, electrical and mechanical details.
Mechanical Drawing
2D/3D mechanical dimensions and product layout (38×11.5mm ultra-thin).
User Manual
Quick start guide, integration tips, and configuration protocols.
3D CAD Model
STEP, IGES and STL formats for mechanical integration (38×11.5mm).
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