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_.webp "JS-ARP18-1")
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The JS-ARP18-1 is an L1 single-band GNSS solution, optimized for high performance and cost-effectiveness. It features multi-mode signal tracking and advanced anti-multipath and anti-interference RF front-end, enhancing positioning accuracy and TTFF. Compact and lightweight, it is ideal for space-constrained applications like dashcams, IoT devices, handheld positioning devices, and shared
Product Features
Based on high-performance GNSS SOC Chip
120 tracking channels and dedicated search engine
Support GPS、BDS、GLONASS、Galileo、QZSS and SBAS
Support A-GPS
Integrated TCXO、LNA、SAW
Compact size(18.0mm x 18.0mm x 7.0mm±0.3mm)，lightweight（7.5g）
Support NMEA 0183
ROHS compliant
Performance Indicators
| Parameter | Specification |
| Constellations & frequency band | GPS L1 |
| BDS B1I B1C | |
| Galileo E1 | |
| GLONASS G1 | |
| QZSS L1 | |
| SBAS L1 | |
| Sensitivity | Tracking & Navigation: -165 dBm |
| Re-acquisition: -159 dBm | |
| Hot start: -159 dBm | |
| Cold start: -148 dBm | |
| Time to first fix | Cold start: 28 s |
| AGPS: 1.5 s | |
| Hot start: 1 s | |
| GNSS Positioning accuracy | Single point positioning<br>horizontal: 1.5 m CEP |
| Time accuracy | PPS: < 20 ns RMS |
| Velocity accuracy | 0.1 m/s CEP |
| Operational limits | Dynamics: ≤ 4 g |
| Altitude: 20 000 m | |
| Velocity: 500 m/s | |
| Baud Rate | 9600–921600 bps (Default 115200 bps) |
| Max navigation update rate | 20 Hz (Default 1 Hz) |
Pin Parameters
| No. | Name | I/O | Description |
| 1, A | PPS | O | Time pulse |
| 2, B | RXD | I | TTL input |
| 3, C | TXD | O | TTL output |
| 4, D | GND | G | Ground |
| 5, E | VCC | P | Main power supply |
| 6, F | EN | O | LDO Control |
Product Application
Dashcam
Automotive applications
Intelligent robot
Wearable devices
Intelligent logistics scheduling
Car navigation & tracking
Personal travel and wilderness adventure
AVL and location base services
Personnel protection
Handheld receiver applications
Protocols
| Protocols | Type |
| NMEA 0183 | Input/Output, ASCII |
| Binary | Proprietary protocol binary |
| Differential data RTCM 3.X | MSM4 or MSM7 (configuration optional) |
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