ET-318 is a compact, high performance, and low power consumption GPS engine board from Globalsat Technology Corporation. It uses SiRF Star III chipset and supports up to 20 satellites tracking. It is suitable for automotive navigation, personal positioning, fleet management, mobile phone navigation, and marine navigation.
The ET-318 is a compact, high‑performance GPS engine board that uses the SiRF Star III chipset and can track up to 20 satellites. It is designed for space‑sensitive applications such as automotive navigation, fleet management, and marine use.
The manual includes product information, technical specifications, pin‑out diagrams, antenna recommendations, layout guidelines, and command reference details to help users integrate and operate the board effectively.
| Chipset | SiRF GSC3f/LP |
|---|---|
| Frequency | 1575.42 MHz |
| Tracking Sensitivity | -159 dBm |
| Cold Start Time | 42 seconds |
| Warm Start Time | 38 seconds |
| Hot Start Time | 1 second |
| Position Accuracy | 10 meters (2D RMS) |
| Velocity Accuracy | 0.1 m/s |
| Update Rate | 1 Hz |
| Power Supply | 3.3 V ±5 % |
| Power Consumption (Acquisition) | 42 mA |
| Power Consumption (Tracking) | 25 mA |
| Operating Temperature | -40 °C to 85 °C |
| Dimensions | 15.2 mm × 14 mm × 2.6 mm |
| Serial Ports | Two |
| Supported Protocols | NMEA 0183 v2.2 and SiRF binary |
The ET-318 has a tracking sensitivity of -159 dBm.
The board provides two serial ports.
It supports NMEA 0183 v2.2 and SiRF binary protocols.