The JS-ATP18-2 is a cost-effective, low-power, multi-mode GNSS positioning module designed to support GPS, BDS, GLONASS, Galileo, QZSS, and SBAS. Engineered for a wide range of applications and end products, it features a high-performance SoC positioning engine that delivers excellent sensitivity, fast acquisition, and robust interference suppression. Even in challenging signal environments, the JS-ATP18-2 ensures accurate and reliable positioning performance.
Product Features
Based on high-performance GNSS SOC series
47channelsnumber
Cold start acquisition sensitivity of -148dBm, tracking sensitivity of -165dBm
Up to10Hz navigation update rate
Supports GPS, BDS, GLONASS, Galileo, QZSS, and SBAS
Supports AGPS
Indoor and outdoor multipath detection and compensation
Integrated 12-tone active interference canceller
Integrated TCXO, LNA, SAW, and RTC
Compact size (18.0 mm x 18 .0mm x 6.7mm±0.3mm), suitable for space-sensitive applications
Supports standard NMEA 0183 V 3.01 /V4.10
Supports 1PPS output
Performance
| Parameter | Specification |
| Constellation Frequency | GPS/QZSS L1C L1C/A GLONASS L1 BDS B1I B1C Galileo E1 SBAS WAAS/EGNOS/MSAS/GAGAN |
| Sensitivity | Tracking and Navigation -165dBm |
| Cold Start -148dBm | |
| First Fix Time | Cold Start 24s |
| Hot Start 1s | |
| GNSS Positioning Accuracy | Horizontal 1.5m |
| Vertical 2.25m | |
| Time Pulse Signal Accuracy | 1PPS 10ns |
| Speed Accuracy | GNSS 0.1m/s |
| SBAS 0.05m/s | |
| Operational Limits | Acceleration 4g |
| Altitude Limit 10000m | |
| Speed Limit 100m/s | |
| Time Pulse Signal Frequency | 1Hz |
| Baud Rate | 4800-921600 bps (default 115200 bps) |
| Maximum Navigation Update Rate | 10Hz (default is 1Hz) |
Pin Parameters
| No. | Name | I/O | Description |
| 1 | PPS | O | Time Pulse Signal Output |
| 2 | RXD | I | TTL Input |
| 3 | TXD | O | TTL Output |
| 4 | GND | G | Ground |
| 5 | VCC | P | Power Supply |
| 6 | EN | I | Module Power Control Switch |
Product Application
Automotive applications
Maritime navigation, fleet management
Intelligent logistics scheduling
Automotive navigation and tracking
Intelligent robots
Handheld terminals
Formation drones
Emergency rescue
Protocols
| Protocol | Type |
| NMEA 0183 V3.01/V4.10 | Input/Output, ASCII |
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