The Unit-GPS SMA represents an advanced global navigation and positioning solution, incorporating the high-performance ATGM336H navigation module from Microelectronics, which is based on the AT6668 chip design. This unit is equipped with an external active antenna that enhances the precision and reliability of satellite positioning services.
Compared to previous models, the AT6668 facilitates multi-frequency and multi-mode GNSS signal reception, thereby ensuring compatibility with various satellite navigation systems, including GPS, BD2, BD3, GLONASS, GALILEO, and QZSS. The system is capable of executing both combined multi-system positioning and independent single-system positioning, which contributes to improved interference resistance and heightened positioning accuracy.
This module is particularly suitable for high-accuracy positioning applications, such as vehicular navigation and IoT location devices, even in environments characterized by weak signal conditions.
Features
- Supports multiple satellite navigation systems (GPS/QZSS/BD2/BD3/GAL/GLO)
- Multi-frequency and multi-system reception
- Multi-channel support
- External active antenna
- 2x LEGO-compatible holes
- Programmable platforms: Arduino, UIFlow, ESP-IDF, etc.
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Includes
- 1x Unit-GPS SMA
- 1x HY2.0-4P cable (20CM)
- 1x External active antenna
Applications
- Drones
- Portable devices
- Public transportation announcement systems
- Vehicle positioning and navigation
- Wearable devices
- IoT location devices
Specifications
| Specification | Details |
|---|---|
| SoC | AT6668 |
| Supported Systems | GPS/QZSS/BD2/BD3/GAL/GLO Frequencies: BDS: B1I+B1C GPS/QZSS/SBAS: L1 GALILEO: E1 GLONASS: R1 |
| Channels | 50 |
| Communication | UART (default: 115200bps@8N1) |
| Positioning Accuracy | <1.5m (CEP50) |
| Positioning Update | Maximum 10Hz |
| Protocol | NMEA0183 4.1 |
| Sensitivity | Tracking: -162dBm, Acquisition: -160dBm, Cold start: -148dBm |
| Startup Time | Cold start: 23 seconds, Hot start: 1 second |
| Antenna | SMA active external antenna (inner thread, inner pin), Gain: 30DBI Frequency: 1555MHz~1580MHz Length: 1m Size: 38*36*13mm |
| Power Consumption | Standby: DC5V/31.64mA Working: DC5V/40.90mA |
| Product Dimensions | 71.4*24*8mm |
| Packaging Dimensions | 136*92*13mm |
| Product Weight | 11.2g |
| Packaging Weight | 59.6g |