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 : -165 dBm |
| Cold Start : -148 dBm | |
| First Fix Time | Cold Start : 24 s |
| Hot Star : 1 s | |
| GNSS Positioning Accuracy | Horizontal : 1.5 m |
| Vertical : 2.25 m | |
| Time Pulse Signal Accuracy | 1PPS : 10 ns |
| Speed Accuracy | GNSS : 0.1 m/s |
| SBAS : 0.05 m/s | |
| Operational Limits | Acceleration : 4 g |
| Altitude Limit : 10000 m | |
| Speed Limit : 100 m/s | |
| Time Pulse Signal Frequency | 1 Hz |
| Baud Rate | 4800 - 921600 bps (default 115200 bps) |
| Maximum Navigation Update Rate | 10 Hz (default is 1 Hz) |
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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